./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.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_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.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_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i ./goblint.2024-05-21_14-57-05.files/protection/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --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 11:18:57,936 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-06-14 11:18:57,971 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-06-14 11:18:57,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-06-14 11:18:57,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-06-14 11:18:57,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-06-14 11:18:57,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-06-14 11:18:57,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-06-14 11:18:57,990 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-06-14 11:18:57,990 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-06-14 11:18:57,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-06-14 11:18:57,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-06-14 11:18:57,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-06-14 11:18:57,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-06-14 11:18:57,992 INFO L153 SettingsManager]: * Use SBE=true
[2024-06-14 11:18:57,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-06-14 11:18:57,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-06-14 11:18:57,993 INFO L153 SettingsManager]: * sizeof long=4
[2024-06-14 11:18:57,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-06-14 11:18:57,993 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-06-14 11:18:57,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-06-14 11:18:57,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-06-14 11:18:57,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-06-14 11:18:57,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-06-14 11:18:57,995 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-06-14 11:18:57,995 INFO L153 SettingsManager]: * sizeof long double=12
[2024-06-14 11:18:57,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-06-14 11:18:57,995 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-06-14 11:18:57,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-06-14 11:18:57,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-06-14 11:18:57,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-06-14 11:18:57,996 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-06-14 11:18:57,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 11:18:57,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-06-14 11:18:57,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-06-14 11:18:57,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-06-14 11:18:57,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-06-14 11:18:57,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-06-14 11:18:57,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-06-14 11:18:57,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-06-14 11:18:57,998 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-06-14 11:18:57,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-06-14 11:18:57,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-06-14 11:18:57,999 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false
[2024-06-14 11:18:58,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-06-14 11:18:58,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-06-14 11:18:58,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-06-14 11:18:58,244 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-06-14 11:18:58,251 INFO L274 PluginConnector]: Witness Parser initialized
[2024-06-14 11:18:58,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/protection/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.yml/witness.yml
[2024-06-14 11:18:58,404 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-06-14 11:18:58,404 INFO L274 PluginConnector]: CDTParser initialized
[2024-06-14 11:18:58,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2024-06-14 11:18:59,543 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-06-14 11:18:59,771 INFO L384 CDTParser]: Found 1 translation units.
[2024-06-14 11:18:59,772 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2024-06-14 11:18:59,782 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d7b5411a/bafb1d23d1464da5b31cce2014d06c98/FLAGe39e56a97
[2024-06-14 11:18:59,797 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d7b5411a/bafb1d23d1464da5b31cce2014d06c98
[2024-06-14 11:18:59,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-06-14 11:18:59,799 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-06-14 11:18:59,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-06-14 11:18:59,801 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-06-14 11:18:59,804 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-06-14 11:18:59,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:18:58" (1/2) ...
[2024-06-14 11:18:59,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f59fd6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:18:59, skipping insertion in model container
[2024-06-14 11:18:59,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:18:58" (1/2) ...
[2024-06-14 11:18:59,808 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7e39d9e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 11:18:59, skipping insertion in model container
[2024-06-14 11:18:59,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:18:59" (2/2) ...
[2024-06-14 11:18:59,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f59fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:18:59, skipping insertion in model container
[2024-06-14 11:18:59,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 11:18:59" (2/2) ...
[2024-06-14 11:18:59,812 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness
[2024-06-14 11:18:59,844 INFO L95 edCorrectnessWitness]: Found the following entries in the witness:
[2024-06-14 11:18:59,845 INFO L97 edCorrectnessWitness]: Location invariant before [L763-L763] ((((! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))
[2024-06-14 11:18:59,845 INFO L97 edCorrectnessWitness]: Location invariant before [L764-L764] ((((! multithreaded || ((0 <= __unbuffered_p1_EAX && __unbuffered_p1_EAX <= 1) && (__unbuffered_p1_EAX == 0 || __unbuffered_p1_EAX == 1))) && (! multithreaded || ((0 <= y && y <= 1) && (y == 0 || y == 1)))) && (! multithreaded || ((0 <= __unbuffered_p0_EAX && __unbuffered_p0_EAX <= 1) && (__unbuffered_p0_EAX == 0 || __unbuffered_p0_EAX == 1)))) && (! multithreaded || 0 <= __unbuffered_cnt)) && (! multithreaded || ((0 <= x && x <= 1) && (x == 0 || x == 1)))
[2024-06-14 11:18:59,845 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0
[2024-06-14 11:18:59,845 INFO L106 edCorrectnessWitness]: ghost_update [L761-L761] multithreaded = 1;
[2024-06-14 11:18:59,880 INFO L177 MainTranslator]: Built tables and reachable declarations
[2024-06-14 11:19:00,133 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 11:19:00,140 INFO L202 MainTranslator]: Completed pre-run
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-06-14 11:19:00,206 INFO L207 PostProcessor]: Analyzing one entry point: main
[2024-06-14 11:19:00,238 INFO L206 MainTranslator]: Completed translation
[2024-06-14 11:19:00,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00 WrapperNode
[2024-06-14 11:19:00,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-06-14 11:19:00,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-06-14 11:19:00,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-06-14 11:19:00,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-06-14 11:19:00,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,275 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57
[2024-06-14 11:19:00,275 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-06-14 11:19:00,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-06-14 11:19:00,276 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-06-14 11:19:00,276 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-06-14 11:19:00,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,307 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-06-14 11:19:00,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,312 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-06-14 11:19:00,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-06-14 11:19:00,318 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-06-14 11:19:00,318 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-06-14 11:19:00,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (1/1) ...
[2024-06-14 11:19:00,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-06-14 11:19:00,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-06-14 11:19:00,342 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 11:19:00,351 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 11:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2024-06-14 11:19:00,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-06-14 11:19:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2024-06-14 11:19:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2024-06-14 11:19:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2024-06-14 11:19:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2024-06-14 11:19:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-06-14 11:19:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2024-06-14 11:19:00,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-06-14 11:19:00,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-06-14 11:19:00,378 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 11:19:00,536 INFO L244 CfgBuilder]: Building ICFG
[2024-06-14 11:19:00,539 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-06-14 11:19:00,807 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program.
[2024-06-14 11:19:00,808 INFO L293 CfgBuilder]: Performing block encoding
[2024-06-14 11:19:00,873 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-06-14 11:19:00,876 INFO L320 CfgBuilder]: Removed 0 assume(true) statements.
[2024-06-14 11:19:00,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:19:00 BoogieIcfgContainer
[2024-06-14 11:19:00,877 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-06-14 11:19:00,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-06-14 11:19:00,880 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-06-14 11:19:00,882 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-06-14 11:19:00,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 11:18:58" (1/4) ...
[2024-06-14 11:19:00,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de64ef and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 11:19:00, skipping insertion in model container
[2024-06-14 11:19:00,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 11:18:59" (2/4) ...
[2024-06-14 11:19:00,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de64ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:19:00, skipping insertion in model container
[2024-06-14 11:19:00,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 11:19:00" (3/4) ...
[2024-06-14 11:19:00,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de64ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 11:19:00, skipping insertion in model container
[2024-06-14 11:19:00,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 11:19:00" (4/4) ...
[2024-06-14 11:19:00,887 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_pso.oepc_pso.opt_tso.oepc_tso.opt-thin000_pso.oepc_pso.opt_tso.oepc_tso.opt.i
[2024-06-14 11:19:00,902 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-06-14 11:19:00,902 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-06-14 11:19:00,902 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-06-14 11:19:00,943 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-06-14 11:19:00,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow
[2024-06-14 11:19:01,002 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events.
[2024-06-14 11:19:01,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 11:19:01,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place.
[2024-06-14 11:19:01,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow
[2024-06-14 11:19:01,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 22 transitions, 50 flow
[2024-06-14 11:19:01,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-06-14 11:19:01,028 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;@891b280, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-06-14 11:19:01,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2024-06-14 11:19:01,033 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-06-14 11:19:01,034 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events.
[2024-06-14 11:19:01,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-06-14 11:19:01,034 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:01,035 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:01,037 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 11:19:01,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:01,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1558221865, now seen corresponding path program 1 times
[2024-06-14 11:19:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:01,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090264100]
[2024-06-14 11:19:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:01,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:01,404 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 11:19:01,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:01,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090264100]
[2024-06-14 11:19:01,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090264100] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:01,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:01,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-06-14 11:19:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546471806]
[2024-06-14 11:19:01,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:01,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-06-14 11:19:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:01,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-06-14 11:19:01,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-06-14 11:19:01,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 30
[2024-06-14 11:19:01,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:01,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:01,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 30
[2024-06-14 11:19:01,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:01,505 INFO L124 PetriNetUnfolderBase]: 66/148 cut-off events.
[2024-06-14 11:19:01,506 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES.
[2024-06-14 11:19:01,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 148 events. 66/148 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 525 event pairs, 33 based on Foata normal form. 1/143 useless extension candidates. Maximal degree in co-relation 279. Up to 124 conditions per place.
[2024-06-14 11:19:01,509 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 19 selfloop transitions, 3 changer transitions 0/28 dead transitions.
[2024-06-14 11:19:01,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 109 flow
[2024-06-14 11:19:01,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-06-14 11:19:01,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-06-14 11:19:01,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions.
[2024-06-14 11:19:01,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666
[2024-06-14 11:19:01,520 INFO L175 Difference]: Start difference. First operand has 29 places, 22 transitions, 50 flow. Second operand 3 states and 60 transitions.
[2024-06-14 11:19:01,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 109 flow
[2024-06-14 11:19:01,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 106 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-06-14 11:19:01,524 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 69 flow
[2024-06-14 11:19:01,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=24}
[2024-06-14 11:19:01,529 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places.
[2024-06-14 11:19:01,529 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 69 flow
[2024-06-14 11:19:01,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:01,530 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:01,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:01,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-06-14 11:19:01,530 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 11:19:01,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:01,531 INFO L85 PathProgramCache]: Analyzing trace with hash 984845510, now seen corresponding path program 1 times
[2024-06-14 11:19:01,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:01,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940490211]
[2024-06-14 11:19:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:01,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:01,678 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 11:19:01,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:01,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940490211]
[2024-06-14 11:19:01,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940490211] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:01,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:01,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-06-14 11:19:01,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763617508]
[2024-06-14 11:19:01,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:01,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-06-14 11:19:01,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:01,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-06-14 11:19:01,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-06-14 11:19:01,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:01,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:01,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:01,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:01,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:01,777 INFO L124 PetriNetUnfolderBase]: 99/210 cut-off events.
[2024-06-14 11:19:01,780 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES.
[2024-06-14 11:19:01,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 210 events. 99/210 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 767 event pairs, 33 based on Foata normal form. 2/211 useless extension candidates. Maximal degree in co-relation 463. Up to 164 conditions per place.
[2024-06-14 11:19:01,783 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 28 selfloop transitions, 5 changer transitions 0/37 dead transitions.
[2024-06-14 11:19:01,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 37 transitions, 168 flow
[2024-06-14 11:19:01,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 11:19:01,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 11:19:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions.
[2024-06-14 11:19:01,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333
[2024-06-14 11:19:01,786 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 69 flow. Second operand 4 states and 73 transitions.
[2024-06-14 11:19:01,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 37 transitions, 168 flow
[2024-06-14 11:19:01,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 37 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-06-14 11:19:01,789 INFO L231 Difference]: Finished difference. Result has 34 places, 28 transitions, 102 flow
[2024-06-14 11:19:01,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=34, PETRI_TRANSITIONS=28}
[2024-06-14 11:19:01,791 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places.
[2024-06-14 11:19:01,791 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 102 flow
[2024-06-14 11:19:01,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:01,791 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:01,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:01,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-06-14 11:19:01,792 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 11:19:01,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:01,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1543765317, now seen corresponding path program 1 times
[2024-06-14 11:19:01,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:01,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507576847]
[2024-06-14 11:19:01,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:01,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:01,982 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 11:19:01,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:01,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507576847]
[2024-06-14 11:19:01,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507576847] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:01,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:01,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 11:19:01,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581264117]
[2024-06-14 11:19:01,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:01,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 11:19:01,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:01,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 11:19:01,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-06-14 11:19:02,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:02,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 102 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:02,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:02,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:02,115 INFO L124 PetriNetUnfolderBase]: 95/202 cut-off events.
[2024-06-14 11:19:02,119 INFO L125 PetriNetUnfolderBase]: For 105/107 co-relation queries the response was YES.
[2024-06-14 11:19:02,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 202 events. 95/202 cut-off events. For 105/107 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 720 event pairs, 17 based on Foata normal form. 6/207 useless extension candidates. Maximal degree in co-relation 500. Up to 138 conditions per place.
[2024-06-14 11:19:02,124 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 28 selfloop transitions, 6 changer transitions 0/38 dead transitions.
[2024-06-14 11:19:02,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 190 flow
[2024-06-14 11:19:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 11:19:02,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 11:19:02,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 84 transitions.
[2024-06-14 11:19:02,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.56
[2024-06-14 11:19:02,129 INFO L175 Difference]: Start difference. First operand has 34 places, 28 transitions, 102 flow. Second operand 5 states and 84 transitions.
[2024-06-14 11:19:02,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 190 flow
[2024-06-14 11:19:02,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-06-14 11:19:02,132 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 112 flow
[2024-06-14 11:19:02,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=38, PETRI_TRANSITIONS=27}
[2024-06-14 11:19:02,134 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 9 predicate places.
[2024-06-14 11:19:02,134 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 112 flow
[2024-06-14 11:19:02,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,134 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:02,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:02,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-06-14 11:19:02,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] ===
[2024-06-14 11:19:02,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:02,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1100810531, now seen corresponding path program 1 times
[2024-06-14 11:19:02,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:02,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300172720]
[2024-06-14 11:19:02,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:02,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 11:19:02,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:02,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300172720]
[2024-06-14 11:19:02,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300172720] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:02,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:02,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-06-14 11:19:02,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570667380]
[2024-06-14 11:19:02,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:02,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-06-14 11:19:02,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:02,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-06-14 11:19:02,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-06-14 11:19:02,355 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:02,356 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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 11:19:02,356 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:02,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:02,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:02,390 INFO L124 PetriNetUnfolderBase]: 93/195 cut-off events.
[2024-06-14 11:19:02,391 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES.
[2024-06-14 11:19:02,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 195 events. 93/195 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 681 event pairs, 25 based on Foata normal form. 1/195 useless extension candidates. Maximal degree in co-relation 529. Up to 165 conditions per place.
[2024-06-14 11:19:02,392 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 28 selfloop transitions, 5 changer transitions 0/37 dead transitions.
[2024-06-14 11:19:02,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 207 flow
[2024-06-14 11:19:02,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 11:19:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 11:19:02,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions.
[2024-06-14 11:19:02,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667
[2024-06-14 11:19:02,393 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 112 flow. Second operand 4 states and 68 transitions.
[2024-06-14 11:19:02,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 207 flow
[2024-06-14 11:19:02,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 37 transitions, 188 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-06-14 11:19:02,395 INFO L231 Difference]: Finished difference. Result has 39 places, 31 transitions, 130 flow
[2024-06-14 11:19:02,395 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=39, PETRI_TRANSITIONS=31}
[2024-06-14 11:19:02,396 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 10 predicate places.
[2024-06-14 11:19:02,396 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 31 transitions, 130 flow
[2024-06-14 11:19:02,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 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 11:19:02,396 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:02,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:02,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-06-14 11:19:02,397 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 11:19:02,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:02,397 INFO L85 PathProgramCache]: Analyzing trace with hash -77355414, now seen corresponding path program 1 times
[2024-06-14 11:19:02,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:02,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127302405]
[2024-06-14 11:19:02,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:02,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:02,493 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 11:19:02,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:02,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127302405]
[2024-06-14 11:19:02,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127302405] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:02,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:02,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 11:19:02,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802475807]
[2024-06-14 11:19:02,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:02,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 11:19:02,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:02,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 11:19:02,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-06-14 11:19:02,524 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:02,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 31 transitions, 130 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:02,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:02,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:02,566 INFO L124 PetriNetUnfolderBase]: 96/205 cut-off events.
[2024-06-14 11:19:02,566 INFO L125 PetriNetUnfolderBase]: For 229/231 co-relation queries the response was YES.
[2024-06-14 11:19:02,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 205 events. 96/205 cut-off events. For 229/231 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 744 event pairs, 31 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 581. Up to 143 conditions per place.
[2024-06-14 11:19:02,567 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 30 selfloop transitions, 11 changer transitions 0/45 dead transitions.
[2024-06-14 11:19:02,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 260 flow
[2024-06-14 11:19:02,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 11:19:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 11:19:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions.
[2024-06-14 11:19:02,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.58
[2024-06-14 11:19:02,569 INFO L175 Difference]: Start difference. First operand has 39 places, 31 transitions, 130 flow. Second operand 5 states and 87 transitions.
[2024-06-14 11:19:02,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 260 flow
[2024-06-14 11:19:02,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 45 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places.
[2024-06-14 11:19:02,574 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 177 flow
[2024-06-14 11:19:02,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=44, PETRI_TRANSITIONS=35}
[2024-06-14 11:19:02,580 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 15 predicate places.
[2024-06-14 11:19:02,580 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 177 flow
[2024-06-14 11:19:02,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,581 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:02,581 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:02,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-06-14 11:19:02,584 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 11:19:02,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:02,585 INFO L85 PathProgramCache]: Analyzing trace with hash 181547080, now seen corresponding path program 2 times
[2024-06-14 11:19:02,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:02,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574253570]
[2024-06-14 11:19:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:02,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:02,747 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 11:19:02,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:02,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574253570]
[2024-06-14 11:19:02,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574253570] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:02,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:02,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 11:19:02,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137920476]
[2024-06-14 11:19:02,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:02,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 11:19:02,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:02,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 11:19:02,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-06-14 11:19:02,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:02,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 177 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:02,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:02,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:02,836 INFO L124 PetriNetUnfolderBase]: 94/202 cut-off events.
[2024-06-14 11:19:02,836 INFO L125 PetriNetUnfolderBase]: For 370/372 co-relation queries the response was YES.
[2024-06-14 11:19:02,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 202 events. 94/202 cut-off events. For 370/372 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 734 event pairs, 31 based on Foata normal form. 3/204 useless extension candidates. Maximal degree in co-relation 630. Up to 144 conditions per place.
[2024-06-14 11:19:02,838 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 30 selfloop transitions, 9 changer transitions 0/43 dead transitions.
[2024-06-14 11:19:02,838 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 275 flow
[2024-06-14 11:19:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 11:19:02,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 11:19:02,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions.
[2024-06-14 11:19:02,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6083333333333333
[2024-06-14 11:19:02,841 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 177 flow. Second operand 4 states and 73 transitions.
[2024-06-14 11:19:02,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 275 flow
[2024-06-14 11:19:02,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 43 transitions, 264 flow, removed 3 selfloop flow, removed 1 redundant places.
[2024-06-14 11:19:02,843 INFO L231 Difference]: Finished difference. Result has 47 places, 35 transitions, 192 flow
[2024-06-14 11:19:02,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=47, PETRI_TRANSITIONS=35}
[2024-06-14 11:19:02,846 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places.
[2024-06-14 11:19:02,846 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 35 transitions, 192 flow
[2024-06-14 11:19:02,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,846 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:02,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:02,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-06-14 11:19:02,847 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 11:19:02,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:02,847 INFO L85 PathProgramCache]: Analyzing trace with hash 181547266, now seen corresponding path program 1 times
[2024-06-14 11:19:02,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:02,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68093985]
[2024-06-14 11:19:02,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:02,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 11:19:02,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:02,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68093985]
[2024-06-14 11:19:02,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68093985] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:02,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:02,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 11:19:02,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631625699]
[2024-06-14 11:19:02,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:02,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 11:19:02,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:02,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 11:19:02,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-06-14 11:19:02,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:02,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 35 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:02,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:02,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:02,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:03,043 INFO L124 PetriNetUnfolderBase]: 97/207 cut-off events.
[2024-06-14 11:19:03,043 INFO L125 PetriNetUnfolderBase]: For 525/527 co-relation queries the response was YES.
[2024-06-14 11:19:03,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 207 events. 97/207 cut-off events. For 525/527 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 763 event pairs, 30 based on Foata normal form. 3/209 useless extension candidates. Maximal degree in co-relation 687. Up to 155 conditions per place.
[2024-06-14 11:19:03,044 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 29 selfloop transitions, 9 changer transitions 0/42 dead transitions.
[2024-06-14 11:19:03,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 42 transitions, 288 flow
[2024-06-14 11:19:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-06-14 11:19:03,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-06-14 11:19:03,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions.
[2024-06-14 11:19:03,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334
[2024-06-14 11:19:03,046 INFO L175 Difference]: Start difference. First operand has 47 places, 35 transitions, 192 flow. Second operand 4 states and 70 transitions.
[2024-06-14 11:19:03,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 42 transitions, 288 flow
[2024-06-14 11:19:03,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 42 transitions, 270 flow, removed 0 selfloop flow, removed 3 redundant places.
[2024-06-14 11:19:03,049 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 212 flow
[2024-06-14 11:19:03,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=48, PETRI_TRANSITIONS=37}
[2024-06-14 11:19:03,050 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 19 predicate places.
[2024-06-14 11:19:03,050 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 212 flow
[2024-06-14 11:19:03,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,051 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:03,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:03,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-06-14 11:19:03,052 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 11:19:03,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:03,053 INFO L85 PathProgramCache]: Analyzing trace with hash 123255072, now seen corresponding path program 2 times
[2024-06-14 11:19:03,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:03,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221802155]
[2024-06-14 11:19:03,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:03,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:03,146 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 11:19:03,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:03,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221802155]
[2024-06-14 11:19:03,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221802155] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:03,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:03,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 11:19:03,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400095512]
[2024-06-14 11:19:03,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:03,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 11:19:03,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:03,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 11:19:03,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-06-14 11:19:03,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:03,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:03,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:03,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:03,247 INFO L124 PetriNetUnfolderBase]: 95/204 cut-off events.
[2024-06-14 11:19:03,247 INFO L125 PetriNetUnfolderBase]: For 589/591 co-relation queries the response was YES.
[2024-06-14 11:19:03,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 204 events. 95/204 cut-off events. For 589/591 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 735 event pairs, 30 based on Foata normal form. 3/206 useless extension candidates. Maximal degree in co-relation 712. Up to 149 conditions per place.
[2024-06-14 11:19:03,248 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 30 selfloop transitions, 11 changer transitions 0/45 dead transitions.
[2024-06-14 11:19:03,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 320 flow
[2024-06-14 11:19:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 11:19:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 11:19:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions.
[2024-06-14 11:19:03,259 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533333333333333
[2024-06-14 11:19:03,259 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 212 flow. Second operand 5 states and 83 transitions.
[2024-06-14 11:19:03,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 320 flow
[2024-06-14 11:19:03,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 300 flow, removed 4 selfloop flow, removed 2 redundant places.
[2024-06-14 11:19:03,263 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 235 flow
[2024-06-14 11:19:03,264 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=51, PETRI_TRANSITIONS=39}
[2024-06-14 11:19:03,265 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 22 predicate places.
[2024-06-14 11:19:03,265 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 235 flow
[2024-06-14 11:19:03,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,266 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:03,266 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:03,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-06-14 11:19:03,266 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 11:19:03,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:03,267 INFO L85 PathProgramCache]: Analyzing trace with hash 123264000, now seen corresponding path program 1 times
[2024-06-14 11:19:03,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:03,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131067419]
[2024-06-14 11:19:03,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:03,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:03,408 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 11:19:03,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131067419]
[2024-06-14 11:19:03,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131067419] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:03,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:03,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-06-14 11:19:03,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081381413]
[2024-06-14 11:19:03,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:03,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-06-14 11:19:03,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-06-14 11:19:03,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-06-14 11:19:03,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:03,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:03,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:03,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:03,484 INFO L124 PetriNetUnfolderBase]: 92/198 cut-off events.
[2024-06-14 11:19:03,484 INFO L125 PetriNetUnfolderBase]: For 583/583 co-relation queries the response was YES.
[2024-06-14 11:19:03,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 728 conditions, 198 events. 92/198 cut-off events. For 583/583 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 694 event pairs, 22 based on Foata normal form. 2/199 useless extension candidates. Maximal degree in co-relation 699. Up to 158 conditions per place.
[2024-06-14 11:19:03,485 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 37 selfloop transitions, 6 changer transitions 0/47 dead transitions.
[2024-06-14 11:19:03,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 47 transitions, 341 flow
[2024-06-14 11:19:03,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 11:19:03,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 11:19:03,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions.
[2024-06-14 11:19:03,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333
[2024-06-14 11:19:03,487 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 235 flow. Second operand 5 states and 80 transitions.
[2024-06-14 11:19:03,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 47 transitions, 341 flow
[2024-06-14 11:19:03,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 316 flow, removed 3 selfloop flow, removed 3 redundant places.
[2024-06-14 11:19:03,491 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 226 flow
[2024-06-14 11:19:03,491 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=226, PETRI_PLACES=53, PETRI_TRANSITIONS=39}
[2024-06-14 11:19:03,492 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 24 predicate places.
[2024-06-14 11:19:03,492 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 226 flow
[2024-06-14 11:19:03,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,492 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:03,492 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:03,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-06-14 11:19:03,493 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 11:19:03,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash 964356720, now seen corresponding path program 1 times
[2024-06-14 11:19:03,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:03,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14761282]
[2024-06-14 11:19:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:03,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:03,595 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 11:19:03,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:03,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14761282]
[2024-06-14 11:19:03,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14761282] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:03,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:03,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:03,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368227919]
[2024-06-14 11:19:03,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:03,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:03,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:03,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:03,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:03,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:03,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:03,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:03,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:03,706 INFO L124 PetriNetUnfolderBase]: 100/214 cut-off events.
[2024-06-14 11:19:03,706 INFO L125 PetriNetUnfolderBase]: For 700/702 co-relation queries the response was YES.
[2024-06-14 11:19:03,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 793 conditions, 214 events. 100/214 cut-off events. For 700/702 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 791 event pairs, 28 based on Foata normal form. 3/216 useless extension candidates. Maximal degree in co-relation 763. Up to 136 conditions per place.
[2024-06-14 11:19:03,707 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 33 selfloop transitions, 19 changer transitions 0/56 dead transitions.
[2024-06-14 11:19:03,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 400 flow
[2024-06-14 11:19:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 11:19:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 11:19:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 127 transitions.
[2024-06-14 11:19:03,708 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5291666666666667
[2024-06-14 11:19:03,708 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 226 flow. Second operand 8 states and 127 transitions.
[2024-06-14 11:19:03,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 400 flow
[2024-06-14 11:19:03,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 56 transitions, 384 flow, removed 1 selfloop flow, removed 4 redundant places.
[2024-06-14 11:19:03,711 INFO L231 Difference]: Finished difference. Result has 57 places, 43 transitions, 281 flow
[2024-06-14 11:19:03,711 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=281, PETRI_PLACES=57, PETRI_TRANSITIONS=43}
[2024-06-14 11:19:03,712 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places.
[2024-06-14 11:19:03,712 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 43 transitions, 281 flow
[2024-06-14 11:19:03,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,712 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:03,713 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:03,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-06-14 11:19:03,713 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 11:19:03,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:03,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1332992752, now seen corresponding path program 2 times
[2024-06-14 11:19:03,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:03,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907423778]
[2024-06-14 11:19:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:03,824 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 11:19:03,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907423778]
[2024-06-14 11:19:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907423778] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:03,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:03,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:03,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605219793]
[2024-06-14 11:19:03,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:03,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:03,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:03,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:03,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:03,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 43 transitions, 281 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:03,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:03,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:03,946 INFO L124 PetriNetUnfolderBase]: 103/221 cut-off events.
[2024-06-14 11:19:03,946 INFO L125 PetriNetUnfolderBase]: For 936/938 co-relation queries the response was YES.
[2024-06-14 11:19:03,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 221 events. 103/221 cut-off events. For 936/938 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 836 event pairs, 28 based on Foata normal form. 3/223 useless extension candidates. Maximal degree in co-relation 837. Up to 146 conditions per place.
[2024-06-14 11:19:03,948 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 35 selfloop transitions, 17 changer transitions 0/56 dead transitions.
[2024-06-14 11:19:03,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 56 transitions, 445 flow
[2024-06-14 11:19:03,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 11:19:03,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 11:19:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions.
[2024-06-14 11:19:03,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667
[2024-06-14 11:19:03,949 INFO L175 Difference]: Start difference. First operand has 57 places, 43 transitions, 281 flow. Second operand 6 states and 102 transitions.
[2024-06-14 11:19:03,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 56 transitions, 445 flow
[2024-06-14 11:19:03,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 56 transitions, 413 flow, removed 6 selfloop flow, removed 4 redundant places.
[2024-06-14 11:19:03,952 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 304 flow
[2024-06-14 11:19:03,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=304, PETRI_PLACES=59, PETRI_TRANSITIONS=45}
[2024-06-14 11:19:03,953 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 30 predicate places.
[2024-06-14 11:19:03,953 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 304 flow
[2024-06-14 11:19:03,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:03,953 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:03,953 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:03,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-06-14 11:19:03,954 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 11:19:03,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:03,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1332998332, now seen corresponding path program 3 times
[2024-06-14 11:19:03,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:03,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221688929]
[2024-06-14 11:19:03,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:03,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 11:19:04,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:04,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221688929]
[2024-06-14 11:19:04,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221688929] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:04,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:04,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:04,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923377493]
[2024-06-14 11:19:04,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:04,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:04,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:04,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:04,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:04,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:04,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 304 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:04,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:04,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:04,200 INFO L124 PetriNetUnfolderBase]: 101/218 cut-off events.
[2024-06-14 11:19:04,201 INFO L125 PetriNetUnfolderBase]: For 1037/1039 co-relation queries the response was YES.
[2024-06-14 11:19:04,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 218 events. 101/218 cut-off events. For 1037/1039 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 820 event pairs, 28 based on Foata normal form. 3/220 useless extension candidates. Maximal degree in co-relation 846. Up to 144 conditions per place.
[2024-06-14 11:19:04,202 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 35 selfloop transitions, 17 changer transitions 0/56 dead transitions.
[2024-06-14 11:19:04,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 56 transitions, 434 flow
[2024-06-14 11:19:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:04,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:04,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 113 transitions.
[2024-06-14 11:19:04,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380952380952381
[2024-06-14 11:19:04,204 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 304 flow. Second operand 7 states and 113 transitions.
[2024-06-14 11:19:04,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 56 transitions, 434 flow
[2024-06-14 11:19:04,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 400 flow, removed 6 selfloop flow, removed 3 redundant places.
[2024-06-14 11:19:04,208 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 309 flow
[2024-06-14 11:19:04,208 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=309, PETRI_PLACES=63, PETRI_TRANSITIONS=45}
[2024-06-14 11:19:04,209 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 34 predicate places.
[2024-06-14 11:19:04,209 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 309 flow
[2024-06-14 11:19:04,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,209 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:04,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:04,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-06-14 11:19:04,210 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 11:19:04,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -474059682, now seen corresponding path program 4 times
[2024-06-14 11:19:04,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:04,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712090392]
[2024-06-14 11:19:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:04,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:04,304 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 11:19:04,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:04,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712090392]
[2024-06-14 11:19:04,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712090392] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:04,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:04,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:04,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491785365]
[2024-06-14 11:19:04,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:04,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:04,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:04,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:04,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:04,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:04,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 309 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:04,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:04,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:04,408 INFO L124 PetriNetUnfolderBase]: 99/215 cut-off events.
[2024-06-14 11:19:04,408 INFO L125 PetriNetUnfolderBase]: For 1148/1150 co-relation queries the response was YES.
[2024-06-14 11:19:04,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 872 conditions, 215 events. 99/215 cut-off events. For 1148/1150 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 817 event pairs, 28 based on Foata normal form. 3/217 useless extension candidates. Maximal degree in co-relation 839. Up to 135 conditions per place.
[2024-06-14 11:19:04,409 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 34 selfloop transitions, 21 changer transitions 0/59 dead transitions.
[2024-06-14 11:19:04,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 59 transitions, 463 flow
[2024-06-14 11:19:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 11:19:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 11:19:04,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 126 transitions.
[2024-06-14 11:19:04,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.525
[2024-06-14 11:19:04,411 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 309 flow. Second operand 8 states and 126 transitions.
[2024-06-14 11:19:04,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 59 transitions, 463 flow
[2024-06-14 11:19:04,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 417 flow, removed 0 selfloop flow, removed 7 redundant places.
[2024-06-14 11:19:04,415 INFO L231 Difference]: Finished difference. Result has 64 places, 47 transitions, 330 flow
[2024-06-14 11:19:04,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=330, PETRI_PLACES=64, PETRI_TRANSITIONS=47}
[2024-06-14 11:19:04,416 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 35 predicate places.
[2024-06-14 11:19:04,416 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 47 transitions, 330 flow
[2024-06-14 11:19:04,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,417 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:04,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:04,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-06-14 11:19:04,417 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 11:19:04,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:04,417 INFO L85 PathProgramCache]: Analyzing trace with hash -548590615, now seen corresponding path program 1 times
[2024-06-14 11:19:04,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:04,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578535103]
[2024-06-14 11:19:04,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:04,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:04,537 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 11:19:04,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:04,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578535103]
[2024-06-14 11:19:04,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578535103] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:04,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:04,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:04,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023311251]
[2024-06-14 11:19:04,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:04,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:04,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:04,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:04,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:04,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:04,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 47 transitions, 330 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:04,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:04,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:04,658 INFO L124 PetriNetUnfolderBase]: 103/223 cut-off events.
[2024-06-14 11:19:04,658 INFO L125 PetriNetUnfolderBase]: For 1347/1349 co-relation queries the response was YES.
[2024-06-14 11:19:04,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 223 events. 103/223 cut-off events. For 1347/1349 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 840 event pairs, 15 based on Foata normal form. 4/226 useless extension candidates. Maximal degree in co-relation 888. Up to 121 conditions per place.
[2024-06-14 11:19:04,660 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 44 selfloop transitions, 13 changer transitions 0/61 dead transitions.
[2024-06-14 11:19:04,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 504 flow
[2024-06-14 11:19:04,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 11:19:04,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 11:19:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions.
[2024-06-14 11:19:04,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55
[2024-06-14 11:19:04,661 INFO L175 Difference]: Start difference. First operand has 64 places, 47 transitions, 330 flow. Second operand 6 states and 99 transitions.
[2024-06-14 11:19:04,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 504 flow
[2024-06-14 11:19:04,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 61 transitions, 453 flow, removed 6 selfloop flow, removed 6 redundant places.
[2024-06-14 11:19:04,666 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 315 flow
[2024-06-14 11:19:04,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=64, PETRI_TRANSITIONS=48}
[2024-06-14 11:19:04,667 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 35 predicate places.
[2024-06-14 11:19:04,667 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 315 flow
[2024-06-14 11:19:04,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,667 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:04,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:04,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-06-14 11:19:04,667 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 11:19:04,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash -548472505, now seen corresponding path program 2 times
[2024-06-14 11:19:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013519439]
[2024-06-14 11:19:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:04,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:04,767 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 11:19:04,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013519439]
[2024-06-14 11:19:04,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013519439] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:04,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:04,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:04,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041833393]
[2024-06-14 11:19:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:04,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:04,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:04,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:04,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:04,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:04,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 315 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:04,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:04,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:04,860 INFO L124 PetriNetUnfolderBase]: 107/231 cut-off events.
[2024-06-14 11:19:04,860 INFO L125 PetriNetUnfolderBase]: For 1483/1485 co-relation queries the response was YES.
[2024-06-14 11:19:04,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 949 conditions, 231 events. 107/231 cut-off events. For 1483/1485 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 887 event pairs, 26 based on Foata normal form. 4/234 useless extension candidates. Maximal degree in co-relation 914. Up to 160 conditions per place.
[2024-06-14 11:19:04,861 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 44 selfloop transitions, 12 changer transitions 0/60 dead transitions.
[2024-06-14 11:19:04,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 461 flow
[2024-06-14 11:19:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 11:19:04,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 11:19:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions.
[2024-06-14 11:19:04,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55
[2024-06-14 11:19:04,863 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 315 flow. Second operand 6 states and 99 transitions.
[2024-06-14 11:19:04,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 461 flow
[2024-06-14 11:19:04,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 433 flow, removed 4 selfloop flow, removed 3 redundant places.
[2024-06-14 11:19:04,867 INFO L231 Difference]: Finished difference. Result has 67 places, 49 transitions, 325 flow
[2024-06-14 11:19:04,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=67, PETRI_TRANSITIONS=49}
[2024-06-14 11:19:04,867 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places.
[2024-06-14 11:19:04,867 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 49 transitions, 325 flow
[2024-06-14 11:19:04,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,868 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:04,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:04,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-06-14 11:19:04,868 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 11:19:04,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:04,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1626902009, now seen corresponding path program 3 times
[2024-06-14 11:19:04,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:04,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570493854]
[2024-06-14 11:19:04,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:04,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:04,963 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 11:19:04,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:04,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570493854]
[2024-06-14 11:19:04,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570493854] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:04,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:04,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677092183]
[2024-06-14 11:19:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:04,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:04,997 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:04,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 49 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:04,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:04,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:04,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:05,077 INFO L124 PetriNetUnfolderBase]: 104/226 cut-off events.
[2024-06-14 11:19:05,077 INFO L125 PetriNetUnfolderBase]: For 1490/1492 co-relation queries the response was YES.
[2024-06-14 11:19:05,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 226 events. 104/226 cut-off events. For 1490/1492 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 860 event pairs, 14 based on Foata normal form. 4/229 useless extension candidates. Maximal degree in co-relation 877. Up to 140 conditions per place.
[2024-06-14 11:19:05,079 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 44 selfloop transitions, 11 changer transitions 0/59 dead transitions.
[2024-06-14 11:19:05,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 59 transitions, 459 flow
[2024-06-14 11:19:05,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 11:19:05,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 11:19:05,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions.
[2024-06-14 11:19:05,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5733333333333334
[2024-06-14 11:19:05,080 INFO L175 Difference]: Start difference. First operand has 67 places, 49 transitions, 325 flow. Second operand 5 states and 86 transitions.
[2024-06-14 11:19:05,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 59 transitions, 459 flow
[2024-06-14 11:19:05,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 59 transitions, 423 flow, removed 3 selfloop flow, removed 5 redundant places.
[2024-06-14 11:19:05,083 INFO L231 Difference]: Finished difference. Result has 67 places, 49 transitions, 317 flow
[2024-06-14 11:19:05,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=317, PETRI_PLACES=67, PETRI_TRANSITIONS=49}
[2024-06-14 11:19:05,084 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places.
[2024-06-14 11:19:05,084 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 49 transitions, 317 flow
[2024-06-14 11:19:05,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,084 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:05,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:05,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-06-14 11:19:05,085 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 11:19:05,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:05,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1626717311, now seen corresponding path program 1 times
[2024-06-14 11:19:05,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:05,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59188418]
[2024-06-14 11:19:05,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:05,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 11:19:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59188418]
[2024-06-14 11:19:05,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59188418] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:05,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:05,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:05,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579416045]
[2024-06-14 11:19:05,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:05,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:05,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:05,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:05,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:05,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:05,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 49 transitions, 317 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:05,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:05,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:05,309 INFO L124 PetriNetUnfolderBase]: 108/234 cut-off events.
[2024-06-14 11:19:05,309 INFO L125 PetriNetUnfolderBase]: For 1701/1703 co-relation queries the response was YES.
[2024-06-14 11:19:05,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 930 conditions, 234 events. 108/234 cut-off events. For 1701/1703 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 907 event pairs, 25 based on Foata normal form. 4/237 useless extension candidates. Maximal degree in co-relation 894. Up to 166 conditions per place.
[2024-06-14 11:19:05,311 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 42 selfloop transitions, 11 changer transitions 0/57 dead transitions.
[2024-06-14 11:19:05,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 57 transitions, 447 flow
[2024-06-14 11:19:05,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-06-14 11:19:05,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2024-06-14 11:19:05,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions.
[2024-06-14 11:19:05,312 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5533333333333333
[2024-06-14 11:19:05,312 INFO L175 Difference]: Start difference. First operand has 67 places, 49 transitions, 317 flow. Second operand 5 states and 83 transitions.
[2024-06-14 11:19:05,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 57 transitions, 447 flow
[2024-06-14 11:19:05,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 57 transitions, 417 flow, removed 2 selfloop flow, removed 5 redundant places.
[2024-06-14 11:19:05,315 INFO L231 Difference]: Finished difference. Result has 67 places, 50 transitions, 325 flow
[2024-06-14 11:19:05,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=67, PETRI_TRANSITIONS=50}
[2024-06-14 11:19:05,316 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 38 predicate places.
[2024-06-14 11:19:05,316 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 50 transitions, 325 flow
[2024-06-14 11:19:05,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,316 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:05,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:05,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-06-14 11:19:05,317 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 11:19:05,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:05,317 INFO L85 PathProgramCache]: Analyzing trace with hash -2032585937, now seen corresponding path program 2 times
[2024-06-14 11:19:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:05,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357922314]
[2024-06-14 11:19:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:05,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:05,405 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 11:19:05,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:05,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357922314]
[2024-06-14 11:19:05,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357922314] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:05,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:05,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:05,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094194246]
[2024-06-14 11:19:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:05,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:05,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:05,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:05,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 50 transitions, 325 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:05,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:05,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:05,486 INFO L124 PetriNetUnfolderBase]: 112/242 cut-off events.
[2024-06-14 11:19:05,486 INFO L125 PetriNetUnfolderBase]: For 1647/1649 co-relation queries the response was YES.
[2024-06-14 11:19:05,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 963 conditions, 242 events. 112/242 cut-off events. For 1647/1649 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 949 event pairs, 27 based on Foata normal form. 4/245 useless extension candidates. Maximal degree in co-relation 927. Up to 177 conditions per place.
[2024-06-14 11:19:05,487 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 43 selfloop transitions, 12 changer transitions 0/59 dead transitions.
[2024-06-14 11:19:05,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 59 transitions, 463 flow
[2024-06-14 11:19:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 11:19:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 11:19:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions.
[2024-06-14 11:19:05,488 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5333333333333333
[2024-06-14 11:19:05,489 INFO L175 Difference]: Start difference. First operand has 67 places, 50 transitions, 325 flow. Second operand 6 states and 96 transitions.
[2024-06-14 11:19:05,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 59 transitions, 463 flow
[2024-06-14 11:19:05,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 59 transitions, 435 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-06-14 11:19:05,492 INFO L231 Difference]: Finished difference. Result has 69 places, 51 transitions, 337 flow
[2024-06-14 11:19:05,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=337, PETRI_PLACES=69, PETRI_TRANSITIONS=51}
[2024-06-14 11:19:05,492 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 40 predicate places.
[2024-06-14 11:19:05,492 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 337 flow
[2024-06-14 11:19:05,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,493 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:05,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-06-14 11:19:05,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-06-14 11:19:05,493 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 11:19:05,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1802370017, now seen corresponding path program 3 times
[2024-06-14 11:19:05,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:05,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321090992]
[2024-06-14 11:19:05,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:05,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:05,576 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 11:19:05,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:05,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321090992]
[2024-06-14 11:19:05,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321090992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:05,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:05,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-06-14 11:19:05,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325700473]
[2024-06-14 11:19:05,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:05,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-06-14 11:19:05,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:05,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-06-14 11:19:05,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-06-14 11:19:05,618 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:05,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 337 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:05,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:05,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:05,677 INFO L124 PetriNetUnfolderBase]: 109/237 cut-off events.
[2024-06-14 11:19:05,677 INFO L125 PetriNetUnfolderBase]: For 1440/1442 co-relation queries the response was YES.
[2024-06-14 11:19:05,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 237 events. 109/237 cut-off events. For 1440/1442 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 930 event pairs, 24 based on Foata normal form. 4/240 useless extension candidates. Maximal degree in co-relation 875. Up to 152 conditions per place.
[2024-06-14 11:19:05,679 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 42 selfloop transitions, 14 changer transitions 0/60 dead transitions.
[2024-06-14 11:19:05,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 60 transitions, 469 flow
[2024-06-14 11:19:05,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-06-14 11:19:05,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states.
[2024-06-14 11:19:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 95 transitions.
[2024-06-14 11:19:05,680 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778
[2024-06-14 11:19:05,680 INFO L175 Difference]: Start difference. First operand has 69 places, 51 transitions, 337 flow. Second operand 6 states and 95 transitions.
[2024-06-14 11:19:05,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 60 transitions, 469 flow
[2024-06-14 11:19:05,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 60 transitions, 439 flow, removed 4 selfloop flow, removed 4 redundant places.
[2024-06-14 11:19:05,683 INFO L231 Difference]: Finished difference. Result has 71 places, 51 transitions, 339 flow
[2024-06-14 11:19:05,683 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=71, PETRI_TRANSITIONS=51}
[2024-06-14 11:19:05,684 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 42 predicate places.
[2024-06-14 11:19:05,684 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 51 transitions, 339 flow
[2024-06-14 11:19:05,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,684 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:05,684 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 11:19:05,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-06-14 11:19:05,685 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 11:19:05,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 88656337, now seen corresponding path program 1 times
[2024-06-14 11:19:05,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:05,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124557704]
[2024-06-14 11:19:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:05,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:05,807 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 11:19:05,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:05,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124557704]
[2024-06-14 11:19:05,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124557704] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:05,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:05,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:05,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596792564]
[2024-06-14 11:19:05,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:05,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:05,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:05,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:05,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:05,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:05,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 51 transitions, 339 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:05,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:05,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:05,948 INFO L124 PetriNetUnfolderBase]: 139/311 cut-off events.
[2024-06-14 11:19:05,948 INFO L125 PetriNetUnfolderBase]: For 3111/3113 co-relation queries the response was YES.
[2024-06-14 11:19:05,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1246 conditions, 311 events. 139/311 cut-off events. For 3111/3113 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1380 event pairs, 38 based on Foata normal form. 8/318 useless extension candidates. Maximal degree in co-relation 1209. Up to 96 conditions per place.
[2024-06-14 11:19:05,950 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 38 selfloop transitions, 19 changer transitions 12/73 dead transitions.
[2024-06-14 11:19:05,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 73 transitions, 579 flow
[2024-06-14 11:19:05,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 11:19:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 11:19:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 143 transitions.
[2024-06-14 11:19:05,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5296296296296297
[2024-06-14 11:19:05,951 INFO L175 Difference]: Start difference. First operand has 71 places, 51 transitions, 339 flow. Second operand 9 states and 143 transitions.
[2024-06-14 11:19:05,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 73 transitions, 579 flow
[2024-06-14 11:19:05,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 73 transitions, 543 flow, removed 5 selfloop flow, removed 4 redundant places.
[2024-06-14 11:19:05,956 INFO L231 Difference]: Finished difference. Result has 76 places, 48 transitions, 322 flow
[2024-06-14 11:19:05,956 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=322, PETRI_PLACES=76, PETRI_TRANSITIONS=48}
[2024-06-14 11:19:05,957 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 47 predicate places.
[2024-06-14 11:19:05,957 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 48 transitions, 322 flow
[2024-06-14 11:19:05,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:05,957 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:05,957 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 11:19:05,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-06-14 11:19:05,958 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 11:19:05,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:05,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1828370805, now seen corresponding path program 2 times
[2024-06-14 11:19:05,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:05,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403066695]
[2024-06-14 11:19:05,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:05,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:06,053 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 11:19:06,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:06,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403066695]
[2024-06-14 11:19:06,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403066695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:06,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:06,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:06,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695053695]
[2024-06-14 11:19:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:06,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:06,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:06,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:06,095 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:06,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 48 transitions, 322 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:06,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:06,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:06,196 INFO L124 PetriNetUnfolderBase]: 145/323 cut-off events.
[2024-06-14 11:19:06,197 INFO L125 PetriNetUnfolderBase]: For 4584/4586 co-relation queries the response was YES.
[2024-06-14 11:19:06,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 323 events. 145/323 cut-off events. For 4584/4586 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1478 event pairs, 48 based on Foata normal form. 8/330 useless extension candidates. Maximal degree in co-relation 1376. Up to 159 conditions per place.
[2024-06-14 11:19:06,199 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 38 selfloop transitions, 19 changer transitions 6/67 dead transitions.
[2024-06-14 11:19:06,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 67 transitions, 544 flow
[2024-06-14 11:19:06,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-06-14 11:19:06,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states.
[2024-06-14 11:19:06,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 153 transitions.
[2024-06-14 11:19:06,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.51
[2024-06-14 11:19:06,200 INFO L175 Difference]: Start difference. First operand has 76 places, 48 transitions, 322 flow. Second operand 10 states and 153 transitions.
[2024-06-14 11:19:06,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 67 transitions, 544 flow
[2024-06-14 11:19:06,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 506 flow, removed 4 selfloop flow, removed 7 redundant places.
[2024-06-14 11:19:06,205 INFO L231 Difference]: Finished difference. Result has 75 places, 46 transitions, 316 flow
[2024-06-14 11:19:06,205 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=316, PETRI_PLACES=75, PETRI_TRANSITIONS=46}
[2024-06-14 11:19:06,205 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 46 predicate places.
[2024-06-14 11:19:06,205 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 46 transitions, 316 flow
[2024-06-14 11:19:06,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,206 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:06,206 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 11:19:06,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-06-14 11:19:06,206 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 11:19:06,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash 177369967, now seen corresponding path program 3 times
[2024-06-14 11:19:06,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:06,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215531493]
[2024-06-14 11:19:06,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:06,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:06,303 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 11:19:06,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:06,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215531493]
[2024-06-14 11:19:06,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215531493] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:06,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:06,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:06,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708665520]
[2024-06-14 11:19:06,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:06,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:06,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:06,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:06,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:06,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:06,345 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 46 transitions, 316 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:06,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:06,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:06,431 INFO L124 PetriNetUnfolderBase]: 121/271 cut-off events.
[2024-06-14 11:19:06,432 INFO L125 PetriNetUnfolderBase]: For 3331/3333 co-relation queries the response was YES.
[2024-06-14 11:19:06,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 271 events. 121/271 cut-off events. For 3331/3333 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1163 event pairs, 40 based on Foata normal form. 10/280 useless extension candidates. Maximal degree in co-relation 1098. Up to 159 conditions per place.
[2024-06-14 11:19:06,433 INFO L140 encePairwiseOnDemand]: 22/30 looper letters, 27 selfloop transitions, 14 changer transitions 15/60 dead transitions.
[2024-06-14 11:19:06,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 60 transitions, 472 flow
[2024-06-14 11:19:06,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-06-14 11:19:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2024-06-14 11:19:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 136 transitions.
[2024-06-14 11:19:06,434 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5037037037037037
[2024-06-14 11:19:06,434 INFO L175 Difference]: Start difference. First operand has 75 places, 46 transitions, 316 flow. Second operand 9 states and 136 transitions.
[2024-06-14 11:19:06,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 60 transitions, 472 flow
[2024-06-14 11:19:06,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 60 transitions, 432 flow, removed 2 selfloop flow, removed 9 redundant places.
[2024-06-14 11:19:06,438 INFO L231 Difference]: Finished difference. Result has 73 places, 41 transitions, 268 flow
[2024-06-14 11:19:06,438 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=73, PETRI_TRANSITIONS=41}
[2024-06-14 11:19:06,463 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 44 predicate places.
[2024-06-14 11:19:06,463 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 41 transitions, 268 flow
[2024-06-14 11:19:06,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,464 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:06,464 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 11:19:06,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-06-14 11:19:06,464 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 11:19:06,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1105793711, now seen corresponding path program 4 times
[2024-06-14 11:19:06,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:06,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435446268]
[2024-06-14 11:19:06,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:06,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 11:19:06,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:06,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435446268]
[2024-06-14 11:19:06,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435446268] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:06,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:06,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:06,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942471187]
[2024-06-14 11:19:06,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:06,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:06,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:06,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:06,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:06,609 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:06,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 41 transitions, 268 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:06,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:06,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:06,692 INFO L124 PetriNetUnfolderBase]: 111/247 cut-off events.
[2024-06-14 11:19:06,692 INFO L125 PetriNetUnfolderBase]: For 2939/2943 co-relation queries the response was YES.
[2024-06-14 11:19:06,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 247 events. 111/247 cut-off events. For 2939/2943 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1046 event pairs, 42 based on Foata normal form. 12/258 useless extension candidates. Maximal degree in co-relation 982. Up to 155 conditions per place.
[2024-06-14 11:19:06,694 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 11 changer transitions 9/50 dead transitions.
[2024-06-14 11:19:06,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 50 transitions, 392 flow
[2024-06-14 11:19:06,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:06,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:06,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 108 transitions.
[2024-06-14 11:19:06,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5142857142857142
[2024-06-14 11:19:06,695 INFO L175 Difference]: Start difference. First operand has 73 places, 41 transitions, 268 flow. Second operand 7 states and 108 transitions.
[2024-06-14 11:19:06,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 50 transitions, 392 flow
[2024-06-14 11:19:06,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 50 transitions, 354 flow, removed 4 selfloop flow, removed 9 redundant places.
[2024-06-14 11:19:06,699 INFO L231 Difference]: Finished difference. Result has 64 places, 38 transitions, 236 flow
[2024-06-14 11:19:06,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=236, PETRI_PLACES=64, PETRI_TRANSITIONS=38}
[2024-06-14 11:19:06,699 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 35 predicate places.
[2024-06-14 11:19:06,699 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 38 transitions, 236 flow
[2024-06-14 11:19:06,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,700 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:06,700 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 11:19:06,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-06-14 11:19:06,700 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 11:19:06,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:06,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1111363853, now seen corresponding path program 1 times
[2024-06-14 11:19:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:06,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100571071]
[2024-06-14 11:19:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:06,810 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 11:19:06,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:06,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100571071]
[2024-06-14 11:19:06,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100571071] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:06,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:06,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:06,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828144572]
[2024-06-14 11:19:06,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:06,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:06,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:06,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:06,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:06,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:06,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 38 transitions, 236 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:06,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:06,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:06,935 INFO L124 PetriNetUnfolderBase]: 99/225 cut-off events.
[2024-06-14 11:19:06,935 INFO L125 PetriNetUnfolderBase]: For 2090/2090 co-relation queries the response was YES.
[2024-06-14 11:19:06,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 225 events. 99/225 cut-off events. For 2090/2090 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 896 event pairs, 41 based on Foata normal form. 8/232 useless extension candidates. Maximal degree in co-relation 840. Up to 138 conditions per place.
[2024-06-14 11:19:06,937 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 8 changer transitions 9/47 dead transitions.
[2024-06-14 11:19:06,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 47 transitions, 354 flow
[2024-06-14 11:19:06,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:06,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions.
[2024-06-14 11:19:06,938 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5047619047619047
[2024-06-14 11:19:06,938 INFO L175 Difference]: Start difference. First operand has 64 places, 38 transitions, 236 flow. Second operand 7 states and 106 transitions.
[2024-06-14 11:19:06,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 47 transitions, 354 flow
[2024-06-14 11:19:06,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 47 transitions, 322 flow, removed 5 selfloop flow, removed 7 redundant places.
[2024-06-14 11:19:06,941 INFO L231 Difference]: Finished difference. Result has 61 places, 35 transitions, 206 flow
[2024-06-14 11:19:06,941 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=35}
[2024-06-14 11:19:06,941 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 32 predicate places.
[2024-06-14 11:19:06,941 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 35 transitions, 206 flow
[2024-06-14 11:19:06,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:06,942 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:06,942 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 11:19:06,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-06-14 11:19:06,942 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 11:19:06,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:06,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1111371293, now seen corresponding path program 2 times
[2024-06-14 11:19:06,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:06,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78884077]
[2024-06-14 11:19:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:06,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:06,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:07,048 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 11:19:07,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:07,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78884077]
[2024-06-14 11:19:07,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78884077] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:07,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:07,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:07,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410949365]
[2024-06-14 11:19:07,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:07,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:07,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:07,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:07,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:07,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:07,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 35 transitions, 206 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:07,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:07,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:07,176 INFO L124 PetriNetUnfolderBase]: 90/212 cut-off events.
[2024-06-14 11:19:07,176 INFO L125 PetriNetUnfolderBase]: For 1424/1424 co-relation queries the response was YES.
[2024-06-14 11:19:07,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 767 conditions, 212 events. 90/212 cut-off events. For 1424/1424 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 839 event pairs, 35 based on Foata normal form. 6/217 useless extension candidates. Maximal degree in co-relation 736. Up to 122 conditions per place.
[2024-06-14 11:19:07,177 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 26 selfloop transitions, 7 changer transitions 7/44 dead transitions.
[2024-06-14 11:19:07,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 44 transitions, 308 flow
[2024-06-14 11:19:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:07,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:07,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 104 transitions.
[2024-06-14 11:19:07,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49523809523809526
[2024-06-14 11:19:07,179 INFO L175 Difference]: Start difference. First operand has 61 places, 35 transitions, 206 flow. Second operand 7 states and 104 transitions.
[2024-06-14 11:19:07,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 44 transitions, 308 flow
[2024-06-14 11:19:07,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 44 transitions, 288 flow, removed 2 selfloop flow, removed 6 redundant places.
[2024-06-14 11:19:07,181 INFO L231 Difference]: Finished difference. Result has 59 places, 32 transitions, 181 flow
[2024-06-14 11:19:07,181 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=181, PETRI_PLACES=59, PETRI_TRANSITIONS=32}
[2024-06-14 11:19:07,181 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 30 predicate places.
[2024-06-14 11:19:07,201 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 32 transitions, 181 flow
[2024-06-14 11:19:07,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,201 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:07,201 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 11:19:07,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-06-14 11:19:07,201 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 11:19:07,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:07,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1105645841, now seen corresponding path program 5 times
[2024-06-14 11:19:07,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:07,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784757847]
[2024-06-14 11:19:07,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:07,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:07,345 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 11:19:07,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:07,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784757847]
[2024-06-14 11:19:07,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784757847] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:07,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:07,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:07,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416992801]
[2024-06-14 11:19:07,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:07,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:07,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:07,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:07,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:07,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:07,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 32 transitions, 181 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:07,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:07,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:07,461 INFO L124 PetriNetUnfolderBase]: 68/162 cut-off events.
[2024-06-14 11:19:07,462 INFO L125 PetriNetUnfolderBase]: For 846/846 co-relation queries the response was YES.
[2024-06-14 11:19:07,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 562 conditions, 162 events. 68/162 cut-off events. For 846/846 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 554 event pairs, 24 based on Foata normal form. 6/167 useless extension candidates. Maximal degree in co-relation 532. Up to 85 conditions per place.
[2024-06-14 11:19:07,463 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 22 selfloop transitions, 4 changer transitions 11/41 dead transitions.
[2024-06-14 11:19:07,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 41 transitions, 281 flow
[2024-06-14 11:19:07,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:07,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:07,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 103 transitions.
[2024-06-14 11:19:07,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49047619047619045
[2024-06-14 11:19:07,464 INFO L175 Difference]: Start difference. First operand has 59 places, 32 transitions, 181 flow. Second operand 7 states and 103 transitions.
[2024-06-14 11:19:07,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 41 transitions, 281 flow
[2024-06-14 11:19:07,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 41 transitions, 254 flow, removed 1 selfloop flow, removed 10 redundant places.
[2024-06-14 11:19:07,466 INFO L231 Difference]: Finished difference. Result has 55 places, 28 transitions, 141 flow
[2024-06-14 11:19:07,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=141, PETRI_PLACES=55, PETRI_TRANSITIONS=28}
[2024-06-14 11:19:07,466 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 26 predicate places.
[2024-06-14 11:19:07,466 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 28 transitions, 141 flow
[2024-06-14 11:19:07,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,466 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:07,467 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 11:19:07,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-06-14 11:19:07,467 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 11:19:07,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:07,467 INFO L85 PathProgramCache]: Analyzing trace with hash -48092067, now seen corresponding path program 3 times
[2024-06-14 11:19:07,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:07,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817641315]
[2024-06-14 11:19:07,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:07,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-06-14 11:19:07,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:07,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817641315]
[2024-06-14 11:19:07,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817641315] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:07,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:07,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:07,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397292244]
[2024-06-14 11:19:07,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:07,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:07,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:07,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:07,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 28 transitions, 141 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:07,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:07,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:07,700 INFO L124 PetriNetUnfolderBase]: 69/165 cut-off events.
[2024-06-14 11:19:07,700 INFO L125 PetriNetUnfolderBase]: For 1094/1094 co-relation queries the response was YES.
[2024-06-14 11:19:07,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 586 conditions, 165 events. 69/165 cut-off events. For 1094/1094 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 592 event pairs, 28 based on Foata normal form. 6/171 useless extension candidates. Maximal degree in co-relation 558. Up to 56 conditions per place.
[2024-06-14 11:19:07,701 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 24 selfloop transitions, 7 changer transitions 6/41 dead transitions.
[2024-06-14 11:19:07,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 269 flow
[2024-06-14 11:19:07,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-06-14 11:19:07,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states.
[2024-06-14 11:19:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 118 transitions.
[2024-06-14 11:19:07,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49166666666666664
[2024-06-14 11:19:07,702 INFO L175 Difference]: Start difference. First operand has 55 places, 28 transitions, 141 flow. Second operand 8 states and 118 transitions.
[2024-06-14 11:19:07,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 269 flow
[2024-06-14 11:19:07,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 41 transitions, 232 flow, removed 9 selfloop flow, removed 10 redundant places.
[2024-06-14 11:19:07,704 INFO L231 Difference]: Finished difference. Result has 47 places, 26 transitions, 121 flow
[2024-06-14 11:19:07,704 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=121, PETRI_PLACES=47, PETRI_TRANSITIONS=26}
[2024-06-14 11:19:07,704 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 18 predicate places.
[2024-06-14 11:19:07,704 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 26 transitions, 121 flow
[2024-06-14 11:19:07,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,705 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:07,705 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 11:19:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-06-14 11:19:07,705 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 11:19:07,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:07,705 INFO L85 PathProgramCache]: Analyzing trace with hash -48099507, now seen corresponding path program 4 times
[2024-06-14 11:19:07,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:07,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253962934]
[2024-06-14 11:19:07,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:07,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:07,797 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 11:19:07,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:07,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253962934]
[2024-06-14 11:19:07,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253962934] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:07,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:07,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:07,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874016234]
[2024-06-14 11:19:07,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:07,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:07,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:07,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:07,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:07,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:07,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 26 transitions, 121 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:07,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:07,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:07,907 INFO L124 PetriNetUnfolderBase]: 45/113 cut-off events.
[2024-06-14 11:19:07,907 INFO L125 PetriNetUnfolderBase]: For 510/510 co-relation queries the response was YES.
[2024-06-14 11:19:07,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 113 events. 45/113 cut-off events. For 510/510 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 327 event pairs, 20 based on Foata normal form. 8/121 useless extension candidates. Maximal degree in co-relation 326. Up to 52 conditions per place.
[2024-06-14 11:19:07,907 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 16 selfloop transitions, 3 changer transitions 11/34 dead transitions.
[2024-06-14 11:19:07,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 34 transitions, 199 flow
[2024-06-14 11:19:07,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:07,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 101 transitions.
[2024-06-14 11:19:07,908 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48095238095238096
[2024-06-14 11:19:07,909 INFO L175 Difference]: Start difference. First operand has 47 places, 26 transitions, 121 flow. Second operand 7 states and 101 transitions.
[2024-06-14 11:19:07,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 34 transitions, 199 flow
[2024-06-14 11:19:07,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 34 transitions, 183 flow, removed 2 selfloop flow, removed 7 redundant places.
[2024-06-14 11:19:07,910 INFO L231 Difference]: Finished difference. Result has 45 places, 21 transitions, 82 flow
[2024-06-14 11:19:07,910 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=82, PETRI_PLACES=45, PETRI_TRANSITIONS=21}
[2024-06-14 11:19:07,910 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 16 predicate places.
[2024-06-14 11:19:07,910 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 21 transitions, 82 flow
[2024-06-14 11:19:07,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:07,910 INFO L200 CegarLoopForPetriNet]: Found error trace
[2024-06-14 11:19:07,911 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 11:19:07,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-06-14 11:19:07,911 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 11:19:07,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-06-14 11:19:07,911 INFO L85 PathProgramCache]: Analyzing trace with hash -38895297, now seen corresponding path program 5 times
[2024-06-14 11:19:07,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-06-14 11:19:07,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617932936]
[2024-06-14 11:19:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-06-14 11:19:07,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-06-14 11:19:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-06-14 11:19:08,019 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 11:19:08,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-06-14 11:19:08,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617932936]
[2024-06-14 11:19:08,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617932936] provided 1 perfect and 0 imperfect interpolant sequences
[2024-06-14 11:19:08,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-06-14 11:19:08,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-06-14 11:19:08,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15388594]
[2024-06-14 11:19:08,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-06-14 11:19:08,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-06-14 11:19:08,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-06-14 11:19:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-06-14 11:19:08,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-06-14 11:19:08,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 30
[2024-06-14 11:19:08,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 21 transitions, 82 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:08,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-06-14 11:19:08,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 30
[2024-06-14 11:19:08,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-06-14 11:19:08,109 INFO L124 PetriNetUnfolderBase]: 20/60 cut-off events.
[2024-06-14 11:19:08,109 INFO L125 PetriNetUnfolderBase]: For 168/168 co-relation queries the response was YES.
[2024-06-14 11:19:08,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 60 events. 20/60 cut-off events. For 168/168 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 1 based on Foata normal form. 6/66 useless extension candidates. Maximal degree in co-relation 143. Up to 24 conditions per place.
[2024-06-14 11:19:08,110 INFO L140 encePairwiseOnDemand]: 24/30 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions.
[2024-06-14 11:19:08,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 122 flow
[2024-06-14 11:19:08,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-06-14 11:19:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2024-06-14 11:19:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 93 transitions.
[2024-06-14 11:19:08,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284
[2024-06-14 11:19:08,111 INFO L175 Difference]: Start difference. First operand has 45 places, 21 transitions, 82 flow. Second operand 7 states and 93 transitions.
[2024-06-14 11:19:08,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 26 transitions, 122 flow
[2024-06-14 11:19:08,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 102 flow, removed 1 selfloop flow, removed 10 redundant places.
[2024-06-14 11:19:08,112 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow
[2024-06-14 11:19:08,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0}
[2024-06-14 11:19:08,112 INFO L281 CegarLoopForPetriNet]: 29 programPoint places, 5 predicate places.
[2024-06-14 11:19:08,112 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow
[2024-06-14 11:19:08,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-06-14 11:19:08,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 4 remaining)
[2024-06-14 11:19:08,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 4 remaining)
[2024-06-14 11:19:08,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining)
[2024-06-14 11:19:08,115 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining)
[2024-06-14 11:19:08,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-06-14 11:19:08,116 INFO L445 BasicCegarLoop]: Path program histogram: [5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1]
[2024-06-14 11:19:08,118 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-06-14 11:19:08,118 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2024-06-14 11:19:08,121 INFO L507 ceAbstractionStarter]: Automizer considered 2 witness invariants
[2024-06-14 11:19:08,121 INFO L508 ceAbstractionStarter]: WitnessConsidered=2
[2024-06-14 11:19:08,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 11:19:08 BasicIcfg
[2024-06-14 11:19:08,121 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-06-14 11:19:08,122 INFO L158 Benchmark]: Toolchain (without parser) took 8322.44ms. Allocated memory was 155.2MB in the beginning and 339.7MB in the end (delta: 184.5MB). Free memory was 78.5MB in the beginning and 277.4MB in the end (delta: -198.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 11:19:08,122 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 155.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 11:19:08,122 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 11:19:08,122 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.80ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 78.3MB in the beginning and 171.7MB in the end (delta: -93.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB.
[2024-06-14 11:19:08,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.18ms. Allocated memory is still 213.9MB. Free memory was 171.7MB in the beginning and 169.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-06-14 11:19:08,123 INFO L158 Benchmark]: Boogie Preprocessor took 41.33ms. Allocated memory is still 213.9MB. Free memory was 169.6MB in the beginning and 167.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 11:19:08,123 INFO L158 Benchmark]: RCFGBuilder took 559.95ms. Allocated memory is still 213.9MB. Free memory was 167.5MB in the beginning and 144.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2024-06-14 11:19:08,123 INFO L158 Benchmark]: TraceAbstraction took 7241.88ms. Allocated memory was 213.9MB in the beginning and 339.7MB in the end (delta: 125.8MB). Free memory was 144.5MB in the beginning and 277.4MB in the end (delta: -132.9MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-06-14 11:19:08,124 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Witness Parser took 0.10ms. Allocated memory is still 155.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CDTParser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 438.80ms. Allocated memory was 155.2MB in the beginning and 213.9MB in the end (delta: 58.7MB). Free memory was 78.3MB in the beginning and 171.7MB in the end (delta: -93.4MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 35.18ms. Allocated memory is still 213.9MB. Free memory was 171.7MB in the beginning and 169.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 41.33ms. Allocated memory is still 213.9MB. Free memory was 169.6MB in the beginning and 167.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 559.95ms. Allocated memory is still 213.9MB. Free memory was 167.5MB in the beginning and 144.5MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 7241.88ms. Allocated memory was 213.9MB in the beginning and 339.7MB in the end (delta: 125.8MB). Free memory was 144.5MB in the beginning and 277.4MB in the end (delta: -132.9MB). There was no memory consumed. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 763]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 764]: 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, 47 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: 7.1s, OverallIterations: 29, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1439 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1106 mSDsluCounter, 296 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4246 IncrementalHoareTripleChecker+Invalid, 4415 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 169 mSolverCounterUnsat, 133 mSDtfsCounter, 4246 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=19, InterpolantAutomatonStates: 180, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 4164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 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 11:19:08,142 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