./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label49.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0a3248fe507879b589534990871f4662b2d97c2767e532585e632d27fc18c598
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 21:10:02,600 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:10:02,603 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:10:02,642 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:10:02,643 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:10:02,647 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:10:02,649 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:10:02,655 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:10:02,657 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:10:02,662 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:10:02,663 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:10:02,666 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:10:02,666 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:10:02,670 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:10:02,672 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:10:02,674 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:10:02,676 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:10:02,677 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:10:02,679 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:10:02,687 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:10:02,690 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:10:02,691 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:10:02,695 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:10:02,696 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:10:02,699 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:10:02,699 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:10:02,699 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:10:02,700 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:10:02,701 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:10:02,702 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:10:02,702 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:10:02,703 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:10:02,704 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:10:02,704 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:10:02,705 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:10:02,706 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:10:02,706 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:10:02,707 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:10:02,707 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:10:02,708 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:10:02,709 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:10:02,710 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 21:10:02,734 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-02 21:10:02,735 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:10:02,735 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:10:02,736 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:10:02,736 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:10:02,737 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:10:02,737 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:10:02,738 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-02 21:10:02,738 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-02 21:10:02,738 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:10:02,738 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-11-02 21:10:02,739 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-02 21:10:02,739 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-11-02 21:10:02,739 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-02 21:10:02,739 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:10:02,739 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:10:02,740 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:10:02,740 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-11-02 21:10:02,740 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-02 21:10:02,740 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-02 21:10:02,741 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:10:02,741 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:10:02,741 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-02 21:10:02,741 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-02 21:10:02,741 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:10:02,742 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:10:02,742 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:10:02,742 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:10:02,742 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-02 21:10:02,743 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 21:10:02,743 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:10:02,743 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:10:02,743 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:10:02,743 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/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.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a3248fe507879b589534990871f4662b2d97c2767e532585e632d27fc18c598
[2022-11-02 21:10:03,015 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:10:03,050 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:10:03,054 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:10:03,055 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-02 21:10:03,056 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-02 21:10:03,057 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/eca-rers2012/Problem01_label49.c
[2022-11-02 21:10:03,169 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/data/f5ca5bac2/8545aabc5b754a44b2e80fbc40f63600/FLAG2f84fb4fe
[2022-11-02 21:10:03,754 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-02 21:10:03,758 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/sv-benchmarks/c/eca-rers2012/Problem01_label49.c
[2022-11-02 21:10:03,773 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/data/f5ca5bac2/8545aabc5b754a44b2e80fbc40f63600/FLAG2f84fb4fe
[2022-11-02 21:10:04,031 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/data/f5ca5bac2/8545aabc5b754a44b2e80fbc40f63600
[2022-11-02 21:10:04,035 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:10:04,038 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:10:04,041 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:10:04,041 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:10:04,044 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:10:04,045 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,048 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4407d21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04, skipping insertion in model container
[2022-11-02 21:10:04,048 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,056 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-02 21:10:04,115 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:10:04,548 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/sv-benchmarks/c/eca-rers2012/Problem01_label49.c[18854,18867]
[2022-11-02 21:10:04,580 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:10:04,593 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-02 21:10:04,708 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/sv-benchmarks/c/eca-rers2012/Problem01_label49.c[18854,18867]
[2022-11-02 21:10:04,718 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:10:04,743 INFO  L208         MainTranslator]: Completed translation
[2022-11-02 21:10:04,744 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04 WrapperNode
[2022-11-02 21:10:04,744 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:10:04,745 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:10:04,746 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:10:04,746 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:10:04,756 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,774 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,844 INFO  L138                Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657
[2022-11-02 21:10:04,845 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:10:04,846 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:10:04,846 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:10:04,846 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:10:04,870 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,874 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,879 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,893 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,924 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,932 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,949 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,954 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,960 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:10:04,975 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:10:04,975 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:10:04,975 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:10:04,977 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (1/1) ...
[2022-11-02 21:10:04,985 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:10:05,004 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:10:05,021 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:10:05,053 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:10:05,082 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:10:05,082 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 21:10:05,083 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:10:05,083 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:10:05,196 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-02 21:10:05,198 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:10:06,437 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-02 21:10:06,454 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:10:06,454 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 21:10:06,458 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:06 BoogieIcfgContainer
[2022-11-02 21:10:06,458 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:10:06,464 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:10:06,464 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:10:06,469 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:10:06,470 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:10:04" (1/3) ...
[2022-11-02 21:10:06,471 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c561a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:06, skipping insertion in model container
[2022-11-02 21:10:06,472 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:04" (2/3) ...
[2022-11-02 21:10:06,472 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5c561a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:06, skipping insertion in model container
[2022-11-02 21:10:06,473 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:06" (3/3) ...
[2022-11-02 21:10:06,474 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem01_label49.c
[2022-11-02 21:10:06,501 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:10:06,502 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 21:10:06,594 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:10:06,610 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@60b00a5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:10:06,611 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 21:10:06,618 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:06,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 108
[2022-11-02 21:10:06,635 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:06,636 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:06,637 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:06,645 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:06,645 INFO  L85        PathProgramCache]: Analyzing trace with hash -1165368418, now seen corresponding path program 1 times
[2022-11-02 21:10:06,656 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:06,657 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729339947]
[2022-11-02 21:10:06,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:06,658 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:06,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:07,383 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:07,384 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:07,384 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729339947]
[2022-11-02 21:10:07,385 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729339947] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:07,385 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:07,386 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:10:07,387 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752146396]
[2022-11-02 21:10:07,388 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:07,393 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:07,393 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:07,422 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:07,423 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:07,426 INFO  L87              Difference]: Start difference. First operand  has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:08,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:08,252 INFO  L93              Difference]: Finished difference Result 528 states and 915 transitions.
[2022-11-02 21:10:08,253 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:08,254 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107
[2022-11-02 21:10:08,256 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:08,277 INFO  L225             Difference]: With dead ends: 528
[2022-11-02 21:10:08,278 INFO  L226             Difference]: Without dead ends: 266
[2022-11-02 21:10:08,286 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:08,293 INFO  L413           NwaCegarLoop]: 36 mSDtfsCounter, 88 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:08,295 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2022-11-02 21:10:08,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2022-11-02 21:10:08,362 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266.
[2022-11-02 21:10:08,370 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:08,371 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions.
[2022-11-02 21:10:08,373 INFO  L78                 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 107
[2022-11-02 21:10:08,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:08,374 INFO  L495      AbstractCegarLoop]: Abstraction has 266 states and 392 transitions.
[2022-11-02 21:10:08,375 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:08,376 INFO  L276                IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions.
[2022-11-02 21:10:08,385 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2022-11-02 21:10:08,386 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:08,386 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:08,387 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 21:10:08,387 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:08,388 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:08,388 INFO  L85        PathProgramCache]: Analyzing trace with hash -1528439098, now seen corresponding path program 1 times
[2022-11-02 21:10:08,388 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:08,389 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132897851]
[2022-11-02 21:10:08,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:08,390 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:08,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:08,566 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:08,566 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:08,566 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132897851]
[2022-11-02 21:10:08,567 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132897851] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:08,567 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:08,567 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:10:08,567 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124695187]
[2022-11-02 21:10:08,568 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:08,569 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:08,569 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:08,570 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:08,570 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:08,570 INFO  L87              Difference]: Start difference. First operand 266 states and 392 transitions. Second operand  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:09,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:09,105 INFO  L93              Difference]: Finished difference Result 792 states and 1171 transitions.
[2022-11-02 21:10:09,105 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:09,105 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112
[2022-11-02 21:10:09,106 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:09,108 INFO  L225             Difference]: With dead ends: 792
[2022-11-02 21:10:09,113 INFO  L226             Difference]: Without dead ends: 528
[2022-11-02 21:10:09,114 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:09,116 INFO  L413           NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:09,116 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 21:10:09,118 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2022-11-02 21:10:09,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528.
[2022-11-02 21:10:09,161 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:09,163 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions.
[2022-11-02 21:10:09,163 INFO  L78                 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 112
[2022-11-02 21:10:09,163 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:09,164 INFO  L495      AbstractCegarLoop]: Abstraction has 528 states and 745 transitions.
[2022-11-02 21:10:09,164 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 2 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:09,165 INFO  L276                IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions.
[2022-11-02 21:10:09,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 123
[2022-11-02 21:10:09,168 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:09,168 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:09,171 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 21:10:09,171 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:09,172 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:09,172 INFO  L85        PathProgramCache]: Analyzing trace with hash 1628864191, now seen corresponding path program 1 times
[2022-11-02 21:10:09,172 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:09,173 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046174234]
[2022-11-02 21:10:09,173 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:09,173 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:09,239 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:09,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:09,510 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:09,510 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046174234]
[2022-11-02 21:10:09,511 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046174234] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:09,511 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:09,511 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:10:09,511 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948224713]
[2022-11-02 21:10:09,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:09,514 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:09,515 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:09,516 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:09,517 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:09,517 INFO  L87              Difference]: Start difference. First operand 528 states and 745 transitions. Second operand  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 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)
[2022-11-02 21:10:10,045 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:10,045 INFO  L93              Difference]: Finished difference Result 1447 states and 2032 transitions.
[2022-11-02 21:10:10,045 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:10,046 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 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) Word has length 122
[2022-11-02 21:10:10,046 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:10,049 INFO  L225             Difference]: With dead ends: 1447
[2022-11-02 21:10:10,049 INFO  L226             Difference]: Without dead ends: 921
[2022-11-02 21:10:10,050 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:10,052 INFO  L413           NwaCegarLoop]: 51 mSDtfsCounter, 123 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:10,052 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 55 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 21:10:10,054 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 921 states.
[2022-11-02 21:10:10,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921.
[2022-11-02 21:10:10,094 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 921 states, 920 states have (on average 1.2902173913043478) internal successors, (1187), 920 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:10,097 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1187 transitions.
[2022-11-02 21:10:10,097 INFO  L78                 Accepts]: Start accepts. Automaton has 921 states and 1187 transitions. Word has length 122
[2022-11-02 21:10:10,098 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:10,098 INFO  L495      AbstractCegarLoop]: Abstraction has 921 states and 1187 transitions.
[2022-11-02 21:10:10,098 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 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)
[2022-11-02 21:10:10,098 INFO  L276                IsEmpty]: Start isEmpty. Operand 921 states and 1187 transitions.
[2022-11-02 21:10:10,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2022-11-02 21:10:10,101 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:10,101 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:10,101 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 21:10:10,102 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:10,102 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:10,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -1443990833, now seen corresponding path program 1 times
[2022-11-02 21:10:10,103 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:10,103 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74479186]
[2022-11-02 21:10:10,103 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:10,103 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:10,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:10,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-02 21:10:10,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:10,334 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74479186]
[2022-11-02 21:10:10,334 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74479186] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:10,334 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:10,334 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:10:10,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209532556]
[2022-11-02 21:10:10,336 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:10,337 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:10,338 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:10,338 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:10,338 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:10,339 INFO  L87              Difference]: Start difference. First operand 921 states and 1187 transitions. Second operand  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 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)
[2022-11-02 21:10:10,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:10,814 INFO  L93              Difference]: Finished difference Result 2102 states and 2725 transitions.
[2022-11-02 21:10:10,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:10,815 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 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) Word has length 123
[2022-11-02 21:10:10,815 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:10,819 INFO  L225             Difference]: With dead ends: 2102
[2022-11-02 21:10:10,819 INFO  L226             Difference]: Without dead ends: 1183
[2022-11-02 21:10:10,821 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:10:10,825 INFO  L413           NwaCegarLoop]: 68 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:10,827 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 72 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-11-02 21:10:10,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1183 states.
[2022-11-02 21:10:10,861 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183.
[2022-11-02 21:10:10,863 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1183 states, 1182 states have (on average 1.2470389170896785) internal successors, (1474), 1182 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:10,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1474 transitions.
[2022-11-02 21:10:10,867 INFO  L78                 Accepts]: Start accepts. Automaton has 1183 states and 1474 transitions. Word has length 123
[2022-11-02 21:10:10,869 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:10,869 INFO  L495      AbstractCegarLoop]: Abstraction has 1183 states and 1474 transitions.
[2022-11-02 21:10:10,870 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 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)
[2022-11-02 21:10:10,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 1183 states and 1474 transitions.
[2022-11-02 21:10:10,877 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2022-11-02 21:10:10,877 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:10,877 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:10,877 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-02 21:10:10,878 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:10,879 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:10,879 INFO  L85        PathProgramCache]: Analyzing trace with hash -666214665, now seen corresponding path program 1 times
[2022-11-02 21:10:10,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:10,880 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129633178]
[2022-11-02 21:10:10,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:10,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:10,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:11,191 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:11,191 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:11,191 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129633178]
[2022-11-02 21:10:11,192 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129633178] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:11,192 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:10:11,192 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 21:10:11,194 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101242928]
[2022-11-02 21:10:11,194 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:11,195 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 21:10:11,195 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:11,196 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 21:10:11,196 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-02 21:10:11,196 INFO  L87              Difference]: Start difference. First operand 1183 states and 1474 transitions. Second operand  has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:12,019 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:12,019 INFO  L93              Difference]: Finished difference Result 3150 states and 3955 transitions.
[2022-11-02 21:10:12,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-11-02 21:10:12,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126
[2022-11-02 21:10:12,020 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:12,027 INFO  L225             Difference]: With dead ends: 3150
[2022-11-02 21:10:12,027 INFO  L226             Difference]: Without dead ends: 1969
[2022-11-02 21:10:12,028 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-02 21:10:12,033 INFO  L413           NwaCegarLoop]: 50 mSDtfsCounter, 267 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:12,034 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 58 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-11-02 21:10:12,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1969 states.
[2022-11-02 21:10:12,068 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838.
[2022-11-02 21:10:12,071 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1838 states, 1837 states have (on average 1.221556886227545) internal successors, (2244), 1837 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:12,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2244 transitions.
[2022-11-02 21:10:12,079 INFO  L78                 Accepts]: Start accepts. Automaton has 1838 states and 2244 transitions. Word has length 126
[2022-11-02 21:10:12,080 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:12,081 INFO  L495      AbstractCegarLoop]: Abstraction has 1838 states and 2244 transitions.
[2022-11-02 21:10:12,081 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 31.5) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:12,085 INFO  L276                IsEmpty]: Start isEmpty. Operand 1838 states and 2244 transitions.
[2022-11-02 21:10:12,088 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2022-11-02 21:10:12,088 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:12,089 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:12,089 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-11-02 21:10:12,090 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:12,091 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:12,091 INFO  L85        PathProgramCache]: Analyzing trace with hash -728537834, now seen corresponding path program 1 times
[2022-11-02 21:10:12,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:12,100 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866327886]
[2022-11-02 21:10:12,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:12,100 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:12,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:12,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:10:12,356 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:12,357 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866327886]
[2022-11-02 21:10:12,357 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866327886] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:10:12,357 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692643034]
[2022-11-02 21:10:12,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:12,357 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:10:12,358 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:10:12,362 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:10:12,396 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 21:10:12,532 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:12,535 INFO  L263         TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 21:10:12,550 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:10:12,954 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2022-11-02 21:10:12,954 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 21:10:12,954 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692643034] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:12,955 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 21:10:12,955 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2022-11-02 21:10:12,955 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370278687]
[2022-11-02 21:10:12,955 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:12,956 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:12,956 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:12,957 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:12,957 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 21:10:12,957 INFO  L87              Difference]: Start difference. First operand 1838 states and 2244 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:13,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:13,414 INFO  L93              Difference]: Finished difference Result 2233 states and 2704 transitions.
[2022-11-02 21:10:13,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:13,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144
[2022-11-02 21:10:13,418 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:13,425 INFO  L225             Difference]: With dead ends: 2233
[2022-11-02 21:10:13,425 INFO  L226             Difference]: Without dead ends: 2231
[2022-11-02 21:10:13,429 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 21:10:13,435 INFO  L413           NwaCegarLoop]: 26 mSDtfsCounter, 47 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:13,436 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 31 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-11-02 21:10:13,439 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2231 states.
[2022-11-02 21:10:13,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1707.
[2022-11-02 21:10:13,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1707 states, 1706 states have (on average 1.2262602579132473) internal successors, (2092), 1706 states have internal predecessors, (2092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:13,478 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1707 states to 1707 states and 2092 transitions.
[2022-11-02 21:10:13,479 INFO  L78                 Accepts]: Start accepts. Automaton has 1707 states and 2092 transitions. Word has length 144
[2022-11-02 21:10:13,480 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:13,481 INFO  L495      AbstractCegarLoop]: Abstraction has 1707 states and 2092 transitions.
[2022-11-02 21:10:13,481 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:13,481 INFO  L276                IsEmpty]: Start isEmpty. Operand 1707 states and 2092 transitions.
[2022-11-02 21:10:13,486 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 213
[2022-11-02 21:10:13,486 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 21:10:13,486 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:13,529 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 21:10:13,714 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2022-11-02 21:10:13,714 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:10:13,715 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:10:13,715 INFO  L85        PathProgramCache]: Analyzing trace with hash 620367149, now seen corresponding path program 1 times
[2022-11-02 21:10:13,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:10:13,715 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977292860]
[2022-11-02 21:10:13,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:13,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:10:13,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:14,176 INFO  L134       CoverageAnalysis]: Checked inductivity of 212 backedges. 132 proven. 6 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked.
[2022-11-02 21:10:14,176 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:10:14,176 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977292860]
[2022-11-02 21:10:14,176 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977292860] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:10:14,179 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804567941]
[2022-11-02 21:10:14,179 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:10:14,179 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:10:14,180 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:10:14,183 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:10:14,189 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 21:10:14,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:10:14,362 INFO  L263         TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-11-02 21:10:14,373 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:10:14,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 212 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2022-11-02 21:10:14,633 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 21:10:14,633 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [804567941] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:10:14,633 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-11-02 21:10:14,634 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2022-11-02 21:10:14,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997543498]
[2022-11-02 21:10:14,634 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:10:14,635 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:10:14,635 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:10:14,635 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:10:14,636 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 21:10:14,636 INFO  L87              Difference]: Start difference. First operand 1707 states and 2092 transitions. Second operand  has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:15,155 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:10:15,155 INFO  L93              Difference]: Finished difference Result 3803 states and 4640 transitions.
[2022-11-02 21:10:15,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-02 21:10:15,156 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 212
[2022-11-02 21:10:15,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:10:15,157 INFO  L225             Difference]: With dead ends: 3803
[2022-11-02 21:10:15,157 INFO  L226             Difference]: Without dead ends: 0
[2022-11-02 21:10:15,160 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 21:10:15,160 INFO  L413           NwaCegarLoop]: 185 mSDtfsCounter, 32 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2022-11-02 21:10:15,161 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 190 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2022-11-02 21:10:15,161 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 21:10:15,162 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 21:10:15,162 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:15,162 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 21:10:15,162 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212
[2022-11-02 21:10:15,163 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:10:15,163 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 21:10:15,163 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:10:15,163 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 21:10:15,164 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 21:10:15,166 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 21:10:15,214 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 21:10:15,386 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:10:15,388 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 21:10:15,575 INFO  L899   garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed.
[2022-11-02 21:10:15,576 INFO  L899   garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,577 INFO  L899   garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,578 INFO  L899   garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,579 INFO  L899   garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,580 INFO  L899   garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,581 INFO  L899   garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,582 INFO  L899   garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,583 INFO  L899   garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed.
[2022-11-02 21:10:15,584 INFO  L899   garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed.
[2022-11-02 21:10:15,588 INFO  L899   garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed.
[2022-11-02 21:10:15,588 INFO  L899   garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,588 INFO  L899   garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,589 INFO  L899   garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,590 INFO  L899   garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,591 INFO  L899   garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,591 INFO  L899   garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,591 INFO  L899   garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,591 INFO  L899   garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed.
[2022-11-02 21:10:15,591 INFO  L899   garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,592 INFO  L899   garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,592 INFO  L899   garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,592 INFO  L899   garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,592 INFO  L899   garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,592 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 21:10:15,592 INFO  L899   garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,593 INFO  L899   garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,593 INFO  L899   garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed.
[2022-11-02 21:10:15,593 INFO  L899   garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed.
[2022-11-02 21:10:15,593 INFO  L899   garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed.
[2022-11-02 21:10:15,593 INFO  L899   garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed.
[2022-11-02 21:10:15,593 INFO  L899   garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed.
[2022-11-02 21:10:15,594 INFO  L899   garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed.
[2022-11-02 21:10:15,594 INFO  L899   garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,594 INFO  L895   garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (<= ~a16~0 5)) (<= ~a8~0 13) (and .cse0 (<= 15 ~a8~0))))
[2022-11-02 21:10:15,594 INFO  L899   garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,594 INFO  L899   garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed.
[2022-11-02 21:10:15,595 INFO  L899   garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 21:10:15,596 INFO  L899   garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L902   garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,597 INFO  L899   garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,598 INFO  L899   garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,598 INFO  L899   garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed.
[2022-11-02 21:10:15,599 INFO  L899   garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed.
[2022-11-02 21:10:15,599 INFO  L899   garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed.
[2022-11-02 21:10:15,599 INFO  L899   garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed.
[2022-11-02 21:10:15,599 INFO  L899   garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed.
[2022-11-02 21:10:15,599 INFO  L899   garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,599 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,600 INFO  L899   garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,601 INFO  L899   garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,602 INFO  L899   garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,602 INFO  L899   garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,602 INFO  L899   garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,602 INFO  L899   garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,602 INFO  L895   garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (and .cse0 (<= ~a16~0 5)) (<= ~a8~0 13) (and .cse0 (<= 15 ~a8~0))))
[2022-11-02 21:10:15,602 INFO  L899   garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,602 INFO  L899   garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 507) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed.
[2022-11-02 21:10:15,603 INFO  L899   garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,604 INFO  L899   garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,605 INFO  L899   garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,605 INFO  L899   garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed.
[2022-11-02 21:10:15,605 INFO  L899   garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,605 INFO  L899   garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,605 INFO  L899   garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,605 INFO  L899   garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed.
[2022-11-02 21:10:15,610 INFO  L444         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:10:15,613 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:10:15,630 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:10:15 BoogieIcfgContainer
[2022-11-02 21:10:15,630 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:10:15,631 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:10:15,631 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:10:15,634 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-02 21:10:15,635 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:06" (3/4) ...
[2022-11-02 21:10:15,637 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2022-11-02 21:10:15,658 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2022-11-02 21:10:15,659 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-02 21:10:15,660 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 21:10:15,661 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 21:10:15,764 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 21:10:15,764 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:10:15,765 INFO  L158              Benchmark]: Toolchain (without parser) took 11727.51ms. Allocated memory was 104.9MB in the beginning and 207.6MB in the end (delta: 102.8MB). Free memory was 66.8MB in the beginning and 173.5MB in the end (delta: -106.6MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,765 INFO  L158              Benchmark]: CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 79.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:10:15,766 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 703.71ms. Allocated memory is still 104.9MB. Free memory was 66.7MB in the beginning and 62.4MB in the end (delta: 4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,766 INFO  L158              Benchmark]: Boogie Procedure Inliner took 100.13ms. Allocated memory is still 104.9MB. Free memory was 62.4MB in the beginning and 56.7MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,766 INFO  L158              Benchmark]: Boogie Preprocessor took 128.16ms. Allocated memory is still 104.9MB. Free memory was 56.7MB in the beginning and 52.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,767 INFO  L158              Benchmark]: RCFGBuilder took 1483.76ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 52.4MB in the beginning and 95.9MB in the end (delta: -43.5MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,767 INFO  L158              Benchmark]: TraceAbstraction took 9166.42ms. Allocated memory was 140.5MB in the beginning and 207.6MB in the end (delta: 67.1MB). Free memory was 95.0MB in the beginning and 64.1MB in the end (delta: 30.9MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,767 INFO  L158              Benchmark]: Witness Printer took 133.63ms. Allocated memory is still 207.6MB. Free memory was 64.1MB in the beginning and 173.5MB in the end (delta: -109.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 21:10:15,769 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.38ms. Allocated memory is still 104.9MB. Free memory was 79.0MB in the beginning and 79.0MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 703.71ms. Allocated memory is still 104.9MB. Free memory was 66.7MB in the beginning and 62.4MB in the end (delta: 4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 100.13ms. Allocated memory is still 104.9MB. Free memory was 62.4MB in the beginning and 56.7MB in the end (delta: 5.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 128.16ms. Allocated memory is still 104.9MB. Free memory was 56.7MB in the beginning and 52.4MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * RCFGBuilder took 1483.76ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 52.4MB in the beginning and 95.9MB in the end (delta: -43.5MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 9166.42ms. Allocated memory was 140.5MB in the beginning and 207.6MB in the end (delta: 67.1MB). Free memory was 95.0MB in the beginning and 64.1MB in the end (delta: 30.9MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB.
 * Witness Printer took 133.63ms. Allocated memory is still 207.6MB. Free memory was 64.1MB in the beginning and 173.5MB in the end (delta: -109.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 507]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 7, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 858 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 858 mSDsluCounter, 479 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 559 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2528 IncrementalHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 559 mSolverCounterUnsat, 441 mSDtfsCounter, 2528 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 655 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 37 HoareAnnotationTreeSize, 3 FomulaSimplifications, 380 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 296 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1302 NumberOfCodeBlocks, 1302 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1293 ConstructedInterpolants, 0 QuantifiedInterpolants, 3145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 690 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 512/554 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
    1 specifications checked. All of them hold
  - InvariantResult [Line: 593]: Loop Invariant
    Derived loop invariant: ((a21 == 1 && a16 <= 5) || a8 <= 13) || (a21 == 1 && 15 <= a8)
  - InvariantResult [Line: 587]: Loop Invariant
    Derived loop invariant: 1
  - InvariantResult [Line: 40]: Loop Invariant
    Derived loop invariant: ((a21 == 1 && a16 <= 5) || a8 <= 13) || (a21 == 1 && 15 <= a8)
RESULT: Ultimate proved your program to be correct!
[2022-11-02 21:10:15,822 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68405e87-921f-4027-8edf-5390a77de4ad/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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