./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.yml/witness.yml --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 59af5db6
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/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.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
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-59af5db-m
[2024-02-02 09:17:56,325 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-02-02 09:17:56,381 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-02-02 09:17:56,385 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-02-02 09:17:56,386 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-02-02 09:17:56,401 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-02-02 09:17:56,402 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-02-02 09:17:56,402 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-02-02 09:17:56,403 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-02-02 09:17:56,404 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-02-02 09:17:56,404 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-02-02 09:17:56,404 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-02-02 09:17:56,405 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-02-02 09:17:56,406 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-02-02 09:17:56,406 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-02-02 09:17:56,406 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-02-02 09:17:56,407 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-02-02 09:17:56,409 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-02-02 09:17:56,410 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-02-02 09:17:56,410 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-02-02 09:17:56,410 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-02-02 09:17:56,410 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-02-02 09:17:56,411 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-02-02 09:17:56,411 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-02-02 09:17:56,411 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-02-02 09:17:56,411 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-02-02 09:17:56,411 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-02-02 09:17:56,411 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-02-02 09:17:56,412 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-02-02 09:17:56,412 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-02-02 09:17:56,413 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-02-02 09:17:56,413 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-02-02 09:17:56,413 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-02-02 09:17:56,414 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-02-02 09:17:56,414 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-02-02 09:17:56,414 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-02-02 09:17:56,414 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-02-02 09:17:56,414 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-02-02 09:17:56,414 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-02-02 09:17:56,414 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-02-02 09:17:56,415 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2024-02-02 09:17:56,415 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-02-02 09:17:56,415 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-02-02 09:17:56,415 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false
[2024-02-02 09:17:56,591 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-02-02 09:17:56,606 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-02-02 09:17:56,607 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-02-02 09:17:56,608 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-02-02 09:17:56,609 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-02-02 09:17:56,610 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.yml/witness.yml
[2024-02-02 09:17:56,762 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-02-02 09:17:56,762 INFO  L274        PluginConnector]: CDTParser initialized
[2024-02-02 09:17:56,763 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i
[2024-02-02 09:17:57,912 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-02-02 09:17:58,111 INFO  L384              CDTParser]: Found 1 translation units.
[2024-02-02 09:17:58,111 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i
[2024-02-02 09:17:58,122 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebad56579/6cf8b75afd844927ad9714226846cc5f/FLAGae099d442
[2024-02-02 09:17:58,133 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebad56579/6cf8b75afd844927ad9714226846cc5f
[2024-02-02 09:17:58,134 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-02-02 09:17:58,135 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-02-02 09:17:58,136 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-02-02 09:17:58,136 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-02-02 09:17:58,144 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-02-02 09:17:58,145 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:56" (1/2) ...
[2024-02-02 09:17:58,146 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f208478 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:58, skipping insertion in model container
[2024-02-02 09:17:58,146 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:56" (1/2) ...
[2024-02-02 09:17:58,147 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@566d3c1f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:58, skipping insertion in model container
[2024-02-02 09:17:58,148 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:58" (2/2) ...
[2024-02-02 09:17:58,148 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f208478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58, skipping insertion in model container
[2024-02-02 09:17:58,148 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:58" (2/2) ...
[2024-02-02 09:17:58,149 INFO  L86    nessWitnessExtractor]: Extracting all invariants from correctness witness
[2024-02-02 09:17:58,190 INFO  L99    nessWitnessExtractor]: Found the following entries in the witness:
[2024-02-02 09:17:58,192 INFO  L101   nessWitnessExtractor]: Location invariant before [L697-L697] (((0 <= g) && (g <= 42)) && (g <= 127)) && ((g == 0 || g == 17) || g == 42)
[2024-02-02 09:17:58,192 INFO  L101   nessWitnessExtractor]: Location invariant before [L700-L700] g == 42
[2024-02-02 09:17:58,192 INFO  L101   nessWitnessExtractor]: Location invariant before [L698-L698] g == 42
[2024-02-02 09:17:58,192 INFO  L101   nessWitnessExtractor]: Location invariant before [L702-L702] g == 42
[2024-02-02 09:17:58,192 INFO  L101   nessWitnessExtractor]: Location invariant before [L699-L699] g == 42
[2024-02-02 09:17:58,193 INFO  L101   nessWitnessExtractor]: Location invariant before [L694-L694] g == 0
[2024-02-02 09:17:58,193 INFO  L101   nessWitnessExtractor]: Location invariant before [L696-L696] (((0 <= g) && (g <= 42)) && (g <= 127)) && ((g == 0 || g == 17) || g == 42)
[2024-02-02 09:17:58,193 INFO  L101   nessWitnessExtractor]: Location invariant before [L701-L701] g == 42
[2024-02-02 09:17:58,193 INFO  L101   nessWitnessExtractor]: Location invariant before [L686-L686] ((((0 <= g) && (g <= 42)) && (g <= 127)) && ((unsigned long )arg == 0UL)) && ((g == 0 || g == 17) || g == 42)
[2024-02-02 09:17:58,194 INFO  L101   nessWitnessExtractor]: Location invariant before [L19-L19] (g == 42) && (g == 42)
[2024-02-02 09:17:58,194 INFO  L101   nessWitnessExtractor]: Location invariant before [L689-L689] (g == 17) && ((unsigned long )arg == 0UL)
[2024-02-02 09:17:58,194 INFO  L101   nessWitnessExtractor]: Location invariant before [L688-L688] (g == 17) && ((unsigned long )arg == 0UL)
[2024-02-02 09:17:58,194 INFO  L101   nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL
[2024-02-02 09:17:58,194 INFO  L101   nessWitnessExtractor]: Location invariant before [L687-L687] ((((0 <= g) && (g <= 42)) && (g <= 127)) && ((unsigned long )arg == 0UL)) && ((g == 0 || g == 17) || g == 42)
[2024-02-02 09:17:58,194 INFO  L101   nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL
[2024-02-02 09:17:58,233 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2024-02-02 09:17:58,379 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142]
[2024-02-02 09:17:58,551 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-02-02 09:17:58,562 INFO  L202         MainTranslator]: Completed pre-run
[2024-02-02 09:17:58,572 WARN  L239   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i[1129,1142]
[2024-02-02 09:17:58,573 WARN  L424         MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-02-02 09:17:58,643 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2024-02-02 09:17:58,687 INFO  L206         MainTranslator]: Completed translation
[2024-02-02 09:17:58,700 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58 WrapperNode
[2024-02-02 09:17:58,700 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-02-02 09:17:58,702 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-02-02 09:17:58,702 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-02-02 09:17:58,702 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-02-02 09:17:58,707 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,732 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,761 INFO  L138                Inliner]: procedures = 163, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69
[2024-02-02 09:17:58,761 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-02-02 09:17:58,762 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-02-02 09:17:58,762 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-02-02 09:17:58,762 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-02-02 09:17:58,770 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,770 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,774 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,784 INFO  L175           MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 1, 5]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 0, 5]. The 1 writes are split as follows [0, 0, 1, 0].
[2024-02-02 09:17:58,785 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,785 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,788 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,790 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,791 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,792 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,794 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-02-02 09:17:58,794 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-02-02 09:17:58,794 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-02-02 09:17:58,794 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-02-02 09:17:58,795 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (1/1) ...
[2024-02-02 09:17:58,799 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-02-02 09:17:58,805 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-02-02 09:17:58,829 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)
[2024-02-02 09:17:58,849 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
[2024-02-02 09:17:58,861 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-02-02 09:17:58,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-02-02 09:17:58,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-02-02 09:17:58,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2024-02-02 09:17:58,863 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-02-02 09:17:58,863 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-02-02 09:17:58,863 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-02-02 09:17:58,863 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2024-02-02 09:17:58,863 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2024-02-02 09:17:58,864 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-02-02 09:17:58,864 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-02-02 09:17:58,864 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-02-02 09:17:58,864 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-02-02 09:17:58,864 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-02-02 09:17:58,865 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-02-02 09:17:58,865 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-02-02 09:17:58,865 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-02-02 09:17:58,866 WARN  L214             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement
[2024-02-02 09:17:58,961 INFO  L244             CfgBuilder]: Building ICFG
[2024-02-02 09:17:58,963 INFO  L270             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-02-02 09:17:59,170 INFO  L289             CfgBuilder]: Ommited future-live optimization because the input is a concurrent program.
[2024-02-02 09:17:59,170 INFO  L293             CfgBuilder]: Performing block encoding
[2024-02-02 09:17:59,266 INFO  L315             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-02-02 09:17:59,267 INFO  L320             CfgBuilder]: Removed 0 assume(true) statements.
[2024-02-02 09:17:59,267 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:59 BoogieIcfgContainer
[2024-02-02 09:17:59,267 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-02-02 09:17:59,268 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-02-02 09:17:59,269 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-02-02 09:17:59,271 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-02-02 09:17:59,272 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:56" (1/4) ...
[2024-02-02 09:17:59,272 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f7928 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:59, skipping insertion in model container
[2024-02-02 09:17:59,273 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:58" (2/4) ...
[2024-02-02 09:17:59,273 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f7928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:59, skipping insertion in model container
[2024-02-02 09:17:59,273 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:58" (3/4) ...
[2024-02-02 09:17:59,273 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2f7928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:59, skipping insertion in model container
[2024-02-02 09:17:59,273 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:59" (4/4) ...
[2024-02-02 09:17:59,274 INFO  L112   eAbstractionObserver]: Analyzing ICFG 13-privatized_45-traces-per-global-and-current-lock-mine-incomparable_true.i
[2024-02-02 09:17:59,287 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-02-02 09:17:59,290 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations.
[2024-02-02 09:17:59,290 INFO  L518   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-02-02 09:17:59,348 INFO  L144    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-02-02 09:17:59,380 INFO  L73            FinitePrefix]: Start finitePrefix. Operand has 61 places, 58 transitions, 120 flow
[2024-02-02 09:17:59,409 INFO  L124   PetriNetUnfolderBase]: 1/57 cut-off events.
[2024-02-02 09:17:59,409 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-02-02 09:17:59,411 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 61 conditions, 57 events. 1/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. 
[2024-02-02 09:17:59,412 INFO  L82        GeneralOperation]: Start removeDead. Operand has 61 places, 58 transitions, 120 flow
[2024-02-02 09:17:59,414 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 60 places, 57 transitions, 117 flow
[2024-02-02 09:17:59,421 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-02-02 09:17:59,426 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;@c639176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-02-02 09:17:59,426 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2024-02-02 09:17:59,428 INFO  L185   PetriNetUnfolderBase]: Found word, exiting Unfolder.
[2024-02-02 09:17:59,429 INFO  L124   PetriNetUnfolderBase]: 0/1 cut-off events.
[2024-02-02 09:17:59,429 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-02-02 09:17:59,429 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:17:59,429 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1]
[2024-02-02 09:17:59,430 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:17:59,433 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:17:59,434 INFO  L85        PathProgramCache]: Analyzing trace with hash 7940, now seen corresponding path program 1 times
[2024-02-02 09:17:59,440 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:17:59,441 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835084653]
[2024-02-02 09:17:59,441 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:17:59,441 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:17:59,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:17:59,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:17:59,645 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:17:59,645 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835084653]
[2024-02-02 09:17:59,646 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835084653] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:17:59,646 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:17:59,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-02-02 09:17:59,647 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615254479]
[2024-02-02 09:17:59,648 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:17:59,654 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-02-02 09:17:59,658 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:17:59,676 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-02-02 09:17:59,676 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-02-02 09:17:59,709 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 28 out of 58
[2024-02-02 09:17:59,711 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 117 flow. Second operand  has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:17:59,711 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:17:59,711 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 58
[2024-02-02 09:17:59,712 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:17:59,796 INFO  L124   PetriNetUnfolderBase]: 130/407 cut-off events.
[2024-02-02 09:17:59,796 INFO  L125   PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES.
[2024-02-02 09:17:59,797 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 700 conditions, 407 events. 130/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2061 event pairs, 82 based on Foata normal form. 12/403 useless extension candidates. Maximal degree in co-relation 689. Up to 269 conditions per place. 
[2024-02-02 09:17:59,800 INFO  L140   encePairwiseOnDemand]: 51/58 looper letters, 32 selfloop transitions, 3 changer transitions 0/62 dead transitions.
[2024-02-02 09:17:59,800 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 62 transitions, 197 flow
[2024-02-02 09:17:59,801 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-02-02 09:17:59,803 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-02-02 09:17:59,808 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions.
[2024-02-02 09:17:59,810 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.7068965517241379
[2024-02-02 09:17:59,811 INFO  L175             Difference]: Start difference. First operand has 60 places, 57 transitions, 117 flow. Second operand 3 states and 123 transitions.
[2024-02-02 09:17:59,812 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 62 transitions, 197 flow
[2024-02-02 09:17:59,813 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 62 transitions, 196 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-02-02 09:17:59,815 INFO  L231             Difference]: Finished difference. Result has 61 places, 57 transitions, 133 flow
[2024-02-02 09:17:59,817 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=61, PETRI_TRANSITIONS=57}
[2024-02-02 09:17:59,820 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places.
[2024-02-02 09:17:59,820 INFO  L495      AbstractCegarLoop]: Abstraction has has 61 places, 57 transitions, 133 flow
[2024-02-02 09:17:59,820 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:17:59,820 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:17:59,821 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1]
[2024-02-02 09:17:59,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-02-02 09:17:59,821 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:17:59,822 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:17:59,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 236834759, now seen corresponding path program 1 times
[2024-02-02 09:17:59,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:17:59,822 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586231368]
[2024-02-02 09:17:59,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:17:59,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:17:59,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:17:59,947 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:17:59,947 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:17:59,948 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586231368]
[2024-02-02 09:17:59,948 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586231368] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:17:59,948 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:17:59,949 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-02-02 09:17:59,949 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892695996]
[2024-02-02 09:17:59,949 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:17:59,950 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-02-02 09:17:59,950 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:17:59,951 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-02-02 09:17:59,951 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-02-02 09:17:59,977 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 34 out of 58
[2024-02-02 09:17:59,977 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 57 transitions, 133 flow. Second operand  has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:17:59,978 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:17:59,979 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 58
[2024-02-02 09:17:59,979 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:00,098 INFO  L124   PetriNetUnfolderBase]: 77/328 cut-off events.
[2024-02-02 09:18:00,099 INFO  L125   PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES.
[2024-02-02 09:18:00,103 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 543 conditions, 328 events. 77/328 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1613 event pairs, 50 based on Foata normal form. 12/294 useless extension candidates. Maximal degree in co-relation 530. Up to 161 conditions per place. 
[2024-02-02 09:18:00,106 INFO  L140   encePairwiseOnDemand]: 54/58 looper letters, 32 selfloop transitions, 2 changer transitions 0/66 dead transitions.
[2024-02-02 09:18:00,107 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 66 transitions, 222 flow
[2024-02-02 09:18:00,107 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:00,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:00,115 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions.
[2024-02-02 09:18:00,116 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.7327586206896551
[2024-02-02 09:18:00,116 INFO  L175             Difference]: Start difference. First operand has 61 places, 57 transitions, 133 flow. Second operand 4 states and 170 transitions.
[2024-02-02 09:18:00,116 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 66 transitions, 222 flow
[2024-02-02 09:18:00,118 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 66 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-02-02 09:18:00,119 INFO  L231             Difference]: Finished difference. Result has 61 places, 55 transitions, 130 flow
[2024-02-02 09:18:00,119 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=130, PETRI_PLACES=61, PETRI_TRANSITIONS=55}
[2024-02-02 09:18:00,120 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places.
[2024-02-02 09:18:00,120 INFO  L495      AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 130 flow
[2024-02-02 09:18:00,120 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,120 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:00,121 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:00,121 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-02-02 09:18:00,122 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:00,124 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:00,124 INFO  L85        PathProgramCache]: Analyzing trace with hash -1086685871, now seen corresponding path program 1 times
[2024-02-02 09:18:00,124 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:00,125 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198557413]
[2024-02-02 09:18:00,125 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:00,125 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:00,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:00,259 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:00,259 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:00,259 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198557413]
[2024-02-02 09:18:00,259 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198557413] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:00,260 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:00,260 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-02-02 09:18:00,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145716850]
[2024-02-02 09:18:00,260 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:00,260 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-02-02 09:18:00,261 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:00,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-02-02 09:18:00,262 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-02-02 09:18:00,319 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58
[2024-02-02 09:18:00,319 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 130 flow. Second operand  has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,319 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:00,319 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58
[2024-02-02 09:18:00,320 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:00,390 INFO  L124   PetriNetUnfolderBase]: 197/574 cut-off events.
[2024-02-02 09:18:00,399 INFO  L125   PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES.
[2024-02-02 09:18:00,403 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 574 events. 197/574 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 3031 event pairs, 101 based on Foata normal form. 4/552 useless extension candidates. Maximal degree in co-relation 1051. Up to 387 conditions per place. 
[2024-02-02 09:18:00,404 INFO  L140   encePairwiseOnDemand]: 52/58 looper letters, 42 selfloop transitions, 5 changer transitions 0/67 dead transitions.
[2024-02-02 09:18:00,404 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 67 transitions, 252 flow
[2024-02-02 09:18:00,405 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:00,405 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:00,405 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 133 transitions.
[2024-02-02 09:18:00,406 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5732758620689655
[2024-02-02 09:18:00,406 INFO  L175             Difference]: Start difference. First operand has 61 places, 55 transitions, 130 flow. Second operand 4 states and 133 transitions.
[2024-02-02 09:18:00,406 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 67 transitions, 252 flow
[2024-02-02 09:18:00,407 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 67 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-02-02 09:18:00,408 INFO  L231             Difference]: Finished difference. Result has 64 places, 57 transitions, 155 flow
[2024-02-02 09:18:00,408 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=64, PETRI_TRANSITIONS=57}
[2024-02-02 09:18:00,409 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places.
[2024-02-02 09:18:00,409 INFO  L495      AbstractCegarLoop]: Abstraction has has 64 places, 57 transitions, 155 flow
[2024-02-02 09:18:00,409 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,409 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:00,409 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:00,409 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-02-02 09:18:00,410 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:00,410 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:00,410 INFO  L85        PathProgramCache]: Analyzing trace with hash 866574903, now seen corresponding path program 1 times
[2024-02-02 09:18:00,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:00,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773123002]
[2024-02-02 09:18:00,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:00,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:00,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:00,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:00,435 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:00,435 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773123002]
[2024-02-02 09:18:00,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773123002] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:00,436 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:00,436 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-02-02 09:18:00,436 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110350525]
[2024-02-02 09:18:00,436 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:00,436 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-02-02 09:18:00,437 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:00,437 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-02-02 09:18:00,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-02-02 09:18:00,459 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 24 out of 58
[2024-02-02 09:18:00,460 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 57 transitions, 155 flow. Second operand  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,460 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:00,460 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 58
[2024-02-02 09:18:00,460 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:00,556 INFO  L124   PetriNetUnfolderBase]: 186/604 cut-off events.
[2024-02-02 09:18:00,556 INFO  L125   PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES.
[2024-02-02 09:18:00,557 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 604 events. 186/604 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3473 event pairs, 59 based on Foata normal form. 24/576 useless extension candidates. Maximal degree in co-relation 1115. Up to 248 conditions per place. 
[2024-02-02 09:18:00,559 INFO  L140   encePairwiseOnDemand]: 44/58 looper letters, 43 selfloop transitions, 9 changer transitions 0/73 dead transitions.
[2024-02-02 09:18:00,559 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 73 transitions, 291 flow
[2024-02-02 09:18:00,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-02-02 09:18:00,560 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-02-02 09:18:00,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions.
[2024-02-02 09:18:00,561 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.7413793103448276
[2024-02-02 09:18:00,561 INFO  L175             Difference]: Start difference. First operand has 64 places, 57 transitions, 155 flow. Second operand 3 states and 129 transitions.
[2024-02-02 09:18:00,561 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 73 transitions, 291 flow
[2024-02-02 09:18:00,562 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 283 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-02-02 09:18:00,563 INFO  L231             Difference]: Finished difference. Result has 66 places, 62 transitions, 217 flow
[2024-02-02 09:18:00,563 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=66, PETRI_TRANSITIONS=62}
[2024-02-02 09:18:00,564 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places.
[2024-02-02 09:18:00,564 INFO  L495      AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 217 flow
[2024-02-02 09:18:00,564 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,564 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:00,564 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:00,564 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-02-02 09:18:00,565 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:00,565 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:00,565 INFO  L85        PathProgramCache]: Analyzing trace with hash 2024662900, now seen corresponding path program 1 times
[2024-02-02 09:18:00,565 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:00,565 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279413509]
[2024-02-02 09:18:00,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:00,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:00,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:00,607 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:00,607 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:00,608 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279413509]
[2024-02-02 09:18:00,608 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279413509] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:00,608 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:00,608 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-02-02 09:18:00,608 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685644366]
[2024-02-02 09:18:00,608 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:00,609 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-02-02 09:18:00,609 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:00,609 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-02-02 09:18:00,609 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-02-02 09:18:00,650 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58
[2024-02-02 09:18:00,650 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 217 flow. Second operand  has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,651 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:00,651 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58
[2024-02-02 09:18:00,651 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:00,764 INFO  L124   PetriNetUnfolderBase]: 219/679 cut-off events.
[2024-02-02 09:18:00,764 INFO  L125   PetriNetUnfolderBase]: For 310/319 co-relation queries the response was YES.
[2024-02-02 09:18:00,766 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 679 events. 219/679 cut-off events. For 310/319 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3860 event pairs, 105 based on Foata normal form. 76/737 useless extension candidates. Maximal degree in co-relation 1489. Up to 324 conditions per place. 
[2024-02-02 09:18:00,768 INFO  L140   encePairwiseOnDemand]: 46/58 looper letters, 56 selfloop transitions, 5 changer transitions 2/81 dead transitions.
[2024-02-02 09:18:00,768 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 81 transitions, 367 flow
[2024-02-02 09:18:00,768 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:00,768 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:00,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 150 transitions.
[2024-02-02 09:18:00,769 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.646551724137931
[2024-02-02 09:18:00,769 INFO  L175             Difference]: Start difference. First operand has 66 places, 62 transitions, 217 flow. Second operand 4 states and 150 transitions.
[2024-02-02 09:18:00,769 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 81 transitions, 367 flow
[2024-02-02 09:18:00,771 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 81 transitions, 357 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-02-02 09:18:00,772 INFO  L231             Difference]: Finished difference. Result has 66 places, 55 transitions, 186 flow
[2024-02-02 09:18:00,773 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=186, PETRI_PLACES=66, PETRI_TRANSITIONS=55}
[2024-02-02 09:18:00,773 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places.
[2024-02-02 09:18:00,773 INFO  L495      AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 186 flow
[2024-02-02 09:18:00,774 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,774 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:00,774 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:00,774 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-02-02 09:18:00,774 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:00,774 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:00,774 INFO  L85        PathProgramCache]: Analyzing trace with hash 47407634, now seen corresponding path program 1 times
[2024-02-02 09:18:00,775 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:00,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044247819]
[2024-02-02 09:18:00,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:00,775 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:00,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:00,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:00,832 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:00,832 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044247819]
[2024-02-02 09:18:00,833 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044247819] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:00,833 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:00,833 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-02-02 09:18:00,833 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627107021]
[2024-02-02 09:18:00,833 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:00,834 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-02-02 09:18:00,834 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:00,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-02-02 09:18:00,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-02-02 09:18:00,835 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 37 out of 58
[2024-02-02 09:18:00,835 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 186 flow. Second operand  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,835 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:00,835 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 58
[2024-02-02 09:18:00,835 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:00,908 INFO  L124   PetriNetUnfolderBase]: 57/338 cut-off events.
[2024-02-02 09:18:00,908 INFO  L125   PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES.
[2024-02-02 09:18:00,909 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 662 conditions, 338 events. 57/338 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1790 event pairs, 25 based on Foata normal form. 11/332 useless extension candidates. Maximal degree in co-relation 645. Up to 113 conditions per place. 
[2024-02-02 09:18:00,910 INFO  L140   encePairwiseOnDemand]: 50/58 looper letters, 25 selfloop transitions, 8 changer transitions 4/66 dead transitions.
[2024-02-02 09:18:00,910 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 66 transitions, 290 flow
[2024-02-02 09:18:00,911 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-02-02 09:18:00,911 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-02-02 09:18:00,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions.
[2024-02-02 09:18:00,911 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.8505747126436781
[2024-02-02 09:18:00,912 INFO  L175             Difference]: Start difference. First operand has 66 places, 55 transitions, 186 flow. Second operand 3 states and 148 transitions.
[2024-02-02 09:18:00,912 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 66 transitions, 290 flow
[2024-02-02 09:18:00,913 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 269 flow, removed 4 selfloop flow, removed 3 redundant places.
[2024-02-02 09:18:00,914 INFO  L231             Difference]: Finished difference. Result has 63 places, 55 transitions, 193 flow
[2024-02-02 09:18:00,914 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=63, PETRI_TRANSITIONS=55}
[2024-02-02 09:18:00,915 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 3 predicate places.
[2024-02-02 09:18:00,915 INFO  L495      AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 193 flow
[2024-02-02 09:18:00,915 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:00,916 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:00,916 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:00,916 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-02-02 09:18:00,916 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:00,916 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:00,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 1890911614, now seen corresponding path program 1 times
[2024-02-02 09:18:00,917 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:00,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289364188]
[2024-02-02 09:18:00,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:00,917 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:00,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:00,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:00,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:00,998 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289364188]
[2024-02-02 09:18:00,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289364188] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:00,999 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:00,999 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-02-02 09:18:00,999 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097364647]
[2024-02-02 09:18:00,999 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:01,000 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-02-02 09:18:01,000 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:01,000 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-02-02 09:18:01,000 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-02-02 09:18:01,053 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58
[2024-02-02 09:18:01,054 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 193 flow. Second operand  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,054 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:01,054 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58
[2024-02-02 09:18:01,054 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:01,200 INFO  L124   PetriNetUnfolderBase]: 149/550 cut-off events.
[2024-02-02 09:18:01,201 INFO  L125   PetriNetUnfolderBase]: For 278/281 co-relation queries the response was YES.
[2024-02-02 09:18:01,202 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 550 events. 149/550 cut-off events. For 278/281 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3051 event pairs, 60 based on Foata normal form. 18/559 useless extension candidates. Maximal degree in co-relation 1341. Up to 233 conditions per place. 
[2024-02-02 09:18:01,203 INFO  L140   encePairwiseOnDemand]: 48/58 looper letters, 64 selfloop transitions, 10 changer transitions 0/88 dead transitions.
[2024-02-02 09:18:01,216 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 88 transitions, 459 flow
[2024-02-02 09:18:01,216 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:01,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:01,217 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions.
[2024-02-02 09:18:01,217 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5862068965517241
[2024-02-02 09:18:01,217 INFO  L175             Difference]: Start difference. First operand has 63 places, 55 transitions, 193 flow. Second operand 4 states and 136 transitions.
[2024-02-02 09:18:01,218 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 88 transitions, 459 flow
[2024-02-02 09:18:01,219 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 88 transitions, 441 flow, removed 0 selfloop flow, removed 1 redundant places.
[2024-02-02 09:18:01,220 INFO  L231             Difference]: Finished difference. Result has 67 places, 61 transitions, 261 flow
[2024-02-02 09:18:01,221 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=67, PETRI_TRANSITIONS=61}
[2024-02-02 09:18:01,221 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 7 predicate places.
[2024-02-02 09:18:01,221 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 261 flow
[2024-02-02 09:18:01,222 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,222 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:01,222 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:01,222 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-02-02 09:18:01,222 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:01,223 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:01,223 INFO  L85        PathProgramCache]: Analyzing trace with hash 1892856302, now seen corresponding path program 2 times
[2024-02-02 09:18:01,223 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:01,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104774386]
[2024-02-02 09:18:01,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:01,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:01,232 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:01,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:01,289 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:01,289 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104774386]
[2024-02-02 09:18:01,289 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104774386] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:01,289 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:01,289 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-02-02 09:18:01,289 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926458861]
[2024-02-02 09:18:01,289 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:01,290 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-02-02 09:18:01,290 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:01,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-02-02 09:18:01,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-02-02 09:18:01,321 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 17 out of 58
[2024-02-02 09:18:01,321 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 261 flow. Second operand  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,322 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:01,322 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 58
[2024-02-02 09:18:01,322 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:01,406 INFO  L124   PetriNetUnfolderBase]: 152/574 cut-off events.
[2024-02-02 09:18:01,407 INFO  L125   PetriNetUnfolderBase]: For 588/597 co-relation queries the response was YES.
[2024-02-02 09:18:01,408 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1483 conditions, 574 events. 152/574 cut-off events. For 588/597 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 3204 event pairs, 55 based on Foata normal form. 22/585 useless extension candidates. Maximal degree in co-relation 1464. Up to 176 conditions per place. 
[2024-02-02 09:18:01,409 INFO  L140   encePairwiseOnDemand]: 51/58 looper letters, 54 selfloop transitions, 8 changer transitions 9/85 dead transitions.
[2024-02-02 09:18:01,409 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 85 transitions, 486 flow
[2024-02-02 09:18:01,410 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:01,410 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:01,410 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 126 transitions.
[2024-02-02 09:18:01,410 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5431034482758621
[2024-02-02 09:18:01,410 INFO  L175             Difference]: Start difference. First operand has 67 places, 61 transitions, 261 flow. Second operand 4 states and 126 transitions.
[2024-02-02 09:18:01,411 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 85 transitions, 486 flow
[2024-02-02 09:18:01,412 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-02-02 09:18:01,413 INFO  L231             Difference]: Finished difference. Result has 67 places, 59 transitions, 262 flow
[2024-02-02 09:18:01,413 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=67, PETRI_TRANSITIONS=59}
[2024-02-02 09:18:01,414 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 7 predicate places.
[2024-02-02 09:18:01,414 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 59 transitions, 262 flow
[2024-02-02 09:18:01,414 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,414 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:01,414 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:01,415 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-02-02 09:18:01,415 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:01,415 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:01,415 INFO  L85        PathProgramCache]: Analyzing trace with hash 1868619088, now seen corresponding path program 1 times
[2024-02-02 09:18:01,415 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:01,416 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168564603]
[2024-02-02 09:18:01,416 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:01,416 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:01,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:01,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:01,467 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:01,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168564603]
[2024-02-02 09:18:01,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168564603] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:01,467 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:01,467 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-02-02 09:18:01,468 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108160515]
[2024-02-02 09:18:01,468 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:01,468 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-02-02 09:18:01,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:01,469 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-02-02 09:18:01,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-02-02 09:18:01,494 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 22 out of 58
[2024-02-02 09:18:01,494 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 59 transitions, 262 flow. Second operand  has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,494 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:01,494 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 58
[2024-02-02 09:18:01,494 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:01,591 INFO  L124   PetriNetUnfolderBase]: 103/457 cut-off events.
[2024-02-02 09:18:01,591 INFO  L125   PetriNetUnfolderBase]: For 557/562 co-relation queries the response was YES.
[2024-02-02 09:18:01,592 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 1264 conditions, 457 events. 103/457 cut-off events. For 557/562 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2555 event pairs, 60 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 1245. Up to 170 conditions per place. 
[2024-02-02 09:18:01,593 INFO  L140   encePairwiseOnDemand]: 53/58 looper letters, 34 selfloop transitions, 8 changer transitions 8/66 dead transitions.
[2024-02-02 09:18:01,593 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 391 flow
[2024-02-02 09:18:01,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:01,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:01,594 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 129 transitions.
[2024-02-02 09:18:01,594 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.5560344827586207
[2024-02-02 09:18:01,594 INFO  L175             Difference]: Start difference. First operand has 67 places, 59 transitions, 262 flow. Second operand 4 states and 129 transitions.
[2024-02-02 09:18:01,595 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 391 flow
[2024-02-02 09:18:01,596 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 66 transitions, 381 flow, removed 1 selfloop flow, removed 2 redundant places.
[2024-02-02 09:18:01,597 INFO  L231             Difference]: Finished difference. Result has 66 places, 55 transitions, 255 flow
[2024-02-02 09:18:01,597 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=66, PETRI_TRANSITIONS=55}
[2024-02-02 09:18:01,598 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 6 predicate places.
[2024-02-02 09:18:01,598 INFO  L495      AbstractCegarLoop]: Abstraction has has 66 places, 55 transitions, 255 flow
[2024-02-02 09:18:01,598 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,598 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:01,598 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:01,598 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-02-02 09:18:01,599 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:01,599 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:01,599 INFO  L85        PathProgramCache]: Analyzing trace with hash -718317765, now seen corresponding path program 1 times
[2024-02-02 09:18:01,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:01,599 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805717478]
[2024-02-02 09:18:01,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:01,600 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:01,608 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:01,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:01,642 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:01,642 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805717478]
[2024-02-02 09:18:01,642 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805717478] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:01,642 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:01,642 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-02-02 09:18:01,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953448818]
[2024-02-02 09:18:01,643 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:01,643 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-02-02 09:18:01,643 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:01,643 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-02-02 09:18:01,644 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-02-02 09:18:01,644 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 37 out of 58
[2024-02-02 09:18:01,644 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 55 transitions, 255 flow. Second operand  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,644 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:01,644 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 58
[2024-02-02 09:18:01,644 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:01,695 INFO  L124   PetriNetUnfolderBase]: 50/362 cut-off events.
[2024-02-02 09:18:01,695 INFO  L125   PetriNetUnfolderBase]: For 610/627 co-relation queries the response was YES.
[2024-02-02 09:18:01,696 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 935 conditions, 362 events. 50/362 cut-off events. For 610/627 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2014 event pairs, 26 based on Foata normal form. 4/352 useless extension candidates. Maximal degree in co-relation 917. Up to 139 conditions per place. 
[2024-02-02 09:18:01,697 INFO  L140   encePairwiseOnDemand]: 53/58 looper letters, 23 selfloop transitions, 4 changer transitions 8/64 dead transitions.
[2024-02-02 09:18:01,697 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 64 transitions, 367 flow
[2024-02-02 09:18:01,697 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-02-02 09:18:01,697 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2024-02-02 09:18:01,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions.
[2024-02-02 09:18:01,698 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.8103448275862069
[2024-02-02 09:18:01,698 INFO  L175             Difference]: Start difference. First operand has 66 places, 55 transitions, 255 flow. Second operand 3 states and 141 transitions.
[2024-02-02 09:18:01,698 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 64 transitions, 367 flow
[2024-02-02 09:18:01,699 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 64 transitions, 358 flow, removed 0 selfloop flow, removed 2 redundant places.
[2024-02-02 09:18:01,700 INFO  L231             Difference]: Finished difference. Result has 67 places, 55 transitions, 263 flow
[2024-02-02 09:18:01,700 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=67, PETRI_TRANSITIONS=55}
[2024-02-02 09:18:01,701 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 7 predicate places.
[2024-02-02 09:18:01,701 INFO  L495      AbstractCegarLoop]: Abstraction has has 67 places, 55 transitions, 263 flow
[2024-02-02 09:18:01,701 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,702 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:01,702 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:01,702 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-02-02 09:18:01,702 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:01,702 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:01,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -1094554309, now seen corresponding path program 2 times
[2024-02-02 09:18:01,703 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:01,703 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864449135]
[2024-02-02 09:18:01,703 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:01,703 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:01,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:01,805 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:01,806 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:01,806 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864449135]
[2024-02-02 09:18:01,806 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864449135] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:01,806 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:01,806 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-02-02 09:18:01,806 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529151734]
[2024-02-02 09:18:01,806 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:01,807 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-02-02 09:18:01,807 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:01,807 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-02-02 09:18:01,807 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-02-02 09:18:01,808 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 37 out of 58
[2024-02-02 09:18:01,808 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 55 transitions, 263 flow. Second operand  has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,808 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:01,808 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 58
[2024-02-02 09:18:01,808 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:01,857 INFO  L124   PetriNetUnfolderBase]: 40/294 cut-off events.
[2024-02-02 09:18:01,858 INFO  L125   PetriNetUnfolderBase]: For 510/526 co-relation queries the response was YES.
[2024-02-02 09:18:01,858 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 765 conditions, 294 events. 40/294 cut-off events. For 510/526 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1435 event pairs, 11 based on Foata normal form. 9/296 useless extension candidates. Maximal degree in co-relation 746. Up to 93 conditions per place. 
[2024-02-02 09:18:01,859 INFO  L140   encePairwiseOnDemand]: 51/58 looper letters, 15 selfloop transitions, 7 changer transitions 8/58 dead transitions.
[2024-02-02 09:18:01,859 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 58 transitions, 330 flow
[2024-02-02 09:18:01,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:01,859 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:01,860 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 175 transitions.
[2024-02-02 09:18:01,860 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.7543103448275862
[2024-02-02 09:18:01,860 INFO  L175             Difference]: Start difference. First operand has 67 places, 55 transitions, 263 flow. Second operand 4 states and 175 transitions.
[2024-02-02 09:18:01,860 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 58 transitions, 330 flow
[2024-02-02 09:18:01,862 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 58 transitions, 310 flow, removed 0 selfloop flow, removed 4 redundant places.
[2024-02-02 09:18:01,862 INFO  L231             Difference]: Finished difference. Result has 65 places, 49 transitions, 227 flow
[2024-02-02 09:18:01,862 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=65, PETRI_TRANSITIONS=49}
[2024-02-02 09:18:01,863 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, 5 predicate places.
[2024-02-02 09:18:01,863 INFO  L495      AbstractCegarLoop]: Abstraction has has 65 places, 49 transitions, 227 flow
[2024-02-02 09:18:01,863 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,863 INFO  L200   CegarLoopForPetriNet]: Found error trace
[2024-02-02 09:18:01,864 INFO  L208   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:01,864 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-02-02 09:18:01,864 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 19 more)] ===
[2024-02-02 09:18:01,864 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-02-02 09:18:01,864 INFO  L85        PathProgramCache]: Analyzing trace with hash 461492001, now seen corresponding path program 1 times
[2024-02-02 09:18:01,864 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-02-02 09:18:01,865 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942467862]
[2024-02-02 09:18:01,865 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-02-02 09:18:01,865 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-02-02 09:18:01,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-02-02 09:18:01,971 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-02-02 09:18:01,971 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-02-02 09:18:01,971 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942467862]
[2024-02-02 09:18:01,972 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942467862] provided 1 perfect and 0 imperfect interpolant sequences
[2024-02-02 09:18:01,972 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-02-02 09:18:01,972 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-02-02 09:18:01,972 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424069372]
[2024-02-02 09:18:01,972 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-02-02 09:18:01,973 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-02-02 09:18:01,973 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-02-02 09:18:01,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-02-02 09:18:01,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-02-02 09:18:01,974 INFO  L471   CegarLoopForPetriNet]: Number of universal loopers: 37 out of 58
[2024-02-02 09:18:01,974 INFO  L103   encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 49 transitions, 227 flow. Second operand  has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:01,974 INFO  L112   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2024-02-02 09:18:01,974 INFO  L113   encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 58
[2024-02-02 09:18:01,974 INFO  L73            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2024-02-02 09:18:01,996 INFO  L124   PetriNetUnfolderBase]: 8/99 cut-off events.
[2024-02-02 09:18:01,997 INFO  L125   PetriNetUnfolderBase]: For 114/120 co-relation queries the response was YES.
[2024-02-02 09:18:01,997 INFO  L83            FinitePrefix]: Finished finitePrefix Result has 258 conditions, 99 events. 8/99 cut-off events. For 114/120 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 315 event pairs, 1 based on Foata normal form. 7/104 useless extension candidates. Maximal degree in co-relation 239. Up to 33 conditions per place. 
[2024-02-02 09:18:01,997 INFO  L140   encePairwiseOnDemand]: 55/58 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions.
[2024-02-02 09:18:01,997 INFO  L145   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 39 transitions, 210 flow
[2024-02-02 09:18:01,998 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-02-02 09:18:01,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2024-02-02 09:18:01,998 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 165 transitions.
[2024-02-02 09:18:01,998 INFO  L516   CegarLoopForPetriNet]: DFA transition density 0.7112068965517241
[2024-02-02 09:18:01,998 INFO  L175             Difference]: Start difference. First operand has 65 places, 49 transitions, 227 flow. Second operand 4 states and 165 transitions.
[2024-02-02 09:18:01,999 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 39 transitions, 210 flow
[2024-02-02 09:18:01,999 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 39 transitions, 173 flow, removed 5 selfloop flow, removed 7 redundant places.
[2024-02-02 09:18:02,000 INFO  L231             Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow
[2024-02-02 09:18:02,000 INFO  L264   CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0}
[2024-02-02 09:18:02,000 INFO  L281   CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places.
[2024-02-02 09:18:02,000 INFO  L495      AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow
[2024-02-02 09:18:02,001 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-02-02 09:18:02,003 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 22 remaining)
[2024-02-02 09:18:02,003 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (15 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 22 remaining)
[2024-02-02 09:18:02,004 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 22 remaining)
[2024-02-02 09:18:02,005 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 22 remaining)
[2024-02-02 09:18:02,005 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 22 remaining)
[2024-02-02 09:18:02,005 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 22 remaining)
[2024-02-02 09:18:02,005 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 22 remaining)
[2024-02-02 09:18:02,005 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 22 remaining)
[2024-02-02 09:18:02,005 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 22 remaining)
[2024-02-02 09:18:02,006 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 22 remaining)
[2024-02-02 09:18:02,007 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-02-02 09:18:02,007 INFO  L445         BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-02-02 09:18:02,011 INFO  L229   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2024-02-02 09:18:02,011 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2024-02-02 09:18:02,014 INFO  L503   ceAbstractionStarter]: Automizer considered 14 witness invariants
[2024-02-02 09:18:02,014 INFO  L504   ceAbstractionStarter]: WitnessConsidered=14
[2024-02-02 09:18:02,015 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:18:02 BasicIcfg
[2024-02-02 09:18:02,015 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-02-02 09:18:02,016 INFO  L158              Benchmark]: Toolchain (without parser) took 3880.95ms. Allocated memory was 197.1MB in the beginning and 243.3MB in the end (delta: 46.1MB). Free memory was 120.8MB in the beginning and 197.1MB in the end (delta: -76.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-02-02 09:18:02,016 INFO  L158              Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-02-02 09:18:02,016 INFO  L158              Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-02-02 09:18:02,016 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 565.02ms. Allocated memory is still 197.1MB. Free memory was 120.8MB in the beginning and 97.5MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
[2024-02-02 09:18:02,017 INFO  L158              Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory is still 197.1MB. Free memory was 97.5MB in the beginning and 95.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-02-02 09:18:02,017 INFO  L158              Benchmark]: Boogie Preprocessor took 31.49ms. Allocated memory is still 197.1MB. Free memory was 95.5MB in the beginning and 93.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-02-02 09:18:02,017 INFO  L158              Benchmark]: RCFGBuilder took 472.98ms. Allocated memory is still 197.1MB. Free memory was 93.3MB in the beginning and 152.0MB in the end (delta: -58.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB.
[2024-02-02 09:18:02,017 INFO  L158              Benchmark]: TraceAbstraction took 2747.06ms. Allocated memory was 197.1MB in the beginning and 243.3MB in the end (delta: 46.1MB). Free memory was 151.0MB in the beginning and 197.1MB in the end (delta: -46.1MB). Peak memory consumption was 49.0kB. Max. memory is 16.1GB.
[2024-02-02 09:18:02,018 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 0.15ms. Allocated memory is still 117.4MB. Free memory is still 77.8MB. There was no memory consumed. Max. memory is 16.1GB.
 * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 565.02ms. Allocated memory is still 197.1MB. Free memory was 120.8MB in the beginning and 97.5MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 60.01ms. Allocated memory is still 197.1MB. Free memory was 97.5MB in the beginning and 95.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 31.49ms. Allocated memory is still 197.1MB. Free memory was 95.5MB in the beginning and 93.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 472.98ms. Allocated memory is still 197.1MB. Free memory was 93.3MB in the beginning and 152.0MB in the end (delta: -58.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB.
 * TraceAbstraction took 2747.06ms. Allocated memory was 197.1MB in the beginning and 243.3MB in the end (delta: 46.1MB). Free memory was 151.0MB in the beginning and 197.1MB in the end (delta: -46.1MB). Peak memory consumption was 49.0kB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 694]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 696]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 697]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 698]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 699]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 700]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 19]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - PositiveResult [Line: 701]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 702]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 685]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 686]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 687]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 688]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 689]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 690]: 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 3 procedures, 81 locations, 22 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: 2.6s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 630 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 947 IncrementalHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 91 mSDtfsCounter, 947 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=10, InterpolantAutomatonStates: 44, 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, 0.7s InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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
    15 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-02-02 09:18:02,042 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE