./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rushhour.4.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/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_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rushhour.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/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 64bit --witnessprinter.graph.data.programhash 13e3573b5b93529de4268a13256e78281a3a6a8137789f02ee8ba4a4348ef76f
--- 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 20:51:57,071 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:51:57,075 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:51:57,136 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:51:57,136 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:51:57,142 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:51:57,145 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:51:57,152 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:51:57,155 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:51:57,163 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:51:57,164 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:51:57,166 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:51:57,167 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:51:57,169 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:51:57,171 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:51:57,173 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:51:57,175 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:51:57,176 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:51:57,178 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:51:57,185 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:51:57,188 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:51:57,190 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:51:57,194 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:51:57,195 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:51:57,201 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:51:57,202 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:51:57,202 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:51:57,205 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:51:57,205 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:51:57,206 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:51:57,207 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:51:57,208 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:51:57,210 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:51:57,212 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:51:57,214 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:51:57,215 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:51:57,216 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:51:57,216 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:51:57,216 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:51:57,217 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:51:57,218 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:51:57,219 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf
[2022-11-02 20:51:57,255 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-02 20:51:57,256 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:51:57,256 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:51:57,256 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:51:57,257 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:51:57,257 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:51:57,258 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:51:57,259 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-02 20:51:57,259 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-11-02 20:51:57,259 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:51:57,259 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-02 20:51:57,260 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-02 20:51:57,260 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:51:57,260 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:51:57,260 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:51:57,261 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-11-02 20:51:57,261 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-02 20:51:57,261 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:51:57,261 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:51:57,262 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-11-02 20:51:57,262 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-02 20:51:57,262 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:51:57,262 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:51:57,263 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:51:57,263 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:51:57,263 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-11-02 20:51:57,263 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:51:57,264 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:51:57,264 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:51:57,264 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:51:57,264 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_ff27ff9d-f08b-4145-a04f-08680b02dddd/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_ff27ff9d-f08b-4145-a04f-08680b02dddd/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13e3573b5b93529de4268a13256e78281a3a6a8137789f02ee8ba4a4348ef76f
[2022-11-02 20:51:57,553 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:51:57,584 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:51:57,588 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:51:57,591 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-02 20:51:57,593 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-02 20:51:57,594 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rushhour.4.prop1-func-interl.c
[2022-11-02 20:51:57,670 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/data/90e0f71ea/47fbc1f57897429fb19a4d5e3bac9aa0/FLAGb264ad8c1
[2022-11-02 20:51:59,146 INFO  L306              CDTParser]: Found 1 translation units.
[2022-11-02 20:51:59,146 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rushhour.4.prop1-func-interl.c
[2022-11-02 20:51:59,314 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/data/90e0f71ea/47fbc1f57897429fb19a4d5e3bac9aa0/FLAGb264ad8c1
[2022-11-02 20:51:59,554 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/data/90e0f71ea/47fbc1f57897429fb19a4d5e3bac9aa0
[2022-11-02 20:51:59,557 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:51:59,559 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:51:59,560 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:51:59,560 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:51:59,567 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:51:59,568 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:59" (1/1) ...
[2022-11-02 20:51:59,570 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fdf29aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:51:59, skipping insertion in model container
[2022-11-02 20:51:59,570 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:51:59" (1/1) ...
[2022-11-02 20:51:59,579 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-02 20:51:59,959 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:52:00,825 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_ff27ff9d-f08b-4145-a04f-08680b02dddd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rushhour.4.prop1-func-interl.c[1014,1027]
[2022-11-02 20:52:03,909 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:52:03,913 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-02 20:52:03,930 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_ff27ff9d-f08b-4145-a04f-08680b02dddd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rushhour.4.prop1-func-interl.c[1014,1027]
[2022-11-02 20:52:06,189 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:52:06,203 INFO  L208         MainTranslator]: Completed translation
[2022-11-02 20:52:06,204 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06 WrapperNode
[2022-11-02 20:52:06,205 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:52:06,207 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:52:06,208 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:52:06,208 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:52:06,217 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:06,752 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:09,321 INFO  L138                Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49984
[2022-11-02 20:52:09,321 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:52:09,322 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:52:09,322 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:52:09,322 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:52:09,331 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:09,332 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:10,341 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:10,347 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:11,659 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:11,807 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:12,139 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:12,270 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:12,865 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:52:12,866 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:52:12,866 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:52:12,867 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:52:12,868 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (1/1) ...
[2022-11-02 20:52:12,882 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:52:12,898 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:52:12,916 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:52:12,944 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:52:12,963 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:52:12,963 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:52:17,849 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-02 20:52:17,852 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:53:20,855 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-02 20:53:20,913 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:53:20,913 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:53:20,921 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:53:20 BoogieIcfgContainer
[2022-11-02 20:53:20,921 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:53:20,924 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:53:20,924 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:53:20,928 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:53:20,928 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:51:59" (1/3) ...
[2022-11-02 20:53:20,929 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65076355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:53:20, skipping insertion in model container
[2022-11-02 20:53:20,929 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:52:06" (2/3) ...
[2022-11-02 20:53:20,930 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65076355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:53:20, skipping insertion in model container
[2022-11-02 20:53:20,930 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:53:20" (3/3) ...
[2022-11-02 20:53:20,932 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rushhour.4.prop1-func-interl.c
[2022-11-02 20:53:20,953 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:53:20,953 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:53:21,113 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:53:21,123 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;@3a44e917, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:53:21,123 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:53:21,148 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7655 states, 7653 states have (on average 1.4999346661439958) internal successors, (11479), 7654 states have internal predecessors, (11479), 0 states have call successors, (0), 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 20:53:21,156 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-11-02 20:53:21,156 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:53:21,157 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-11-02 20:53:21,158 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:53:21,165 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:53:21,165 INFO  L85        PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times
[2022-11-02 20:53:21,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:53:21,176 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752365226]
[2022-11-02 20:53:21,176 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:53:21,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:53:22,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:53:23,845 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 20:53:23,845 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:53:23,846 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752365226]
[2022-11-02 20:53:23,847 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752365226] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:53:23,847 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:53:23,847 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:53:23,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408392798]
[2022-11-02 20:53:23,850 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:53:23,856 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:53:23,856 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:53:23,887 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:53:23,888 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:53:23,907 INFO  L87              Difference]: Start difference. First operand  has 7655 states, 7653 states have (on average 1.4999346661439958) internal successors, (11479), 7654 states have internal predecessors, (11479), 0 states have call successors, (0), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:53:26,451 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-11-02 20:53:26,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:53:26,804 INFO  L93              Difference]: Finished difference Result 22951 states and 34425 transitions.
[2022-11-02 20:53:26,807 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-11-02 20:53:26,808 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5
[2022-11-02 20:53:26,809 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:53:26,873 INFO  L225             Difference]: With dead ends: 22951
[2022-11-02 20:53:26,874 INFO  L226             Difference]: Without dead ends: 15298
[2022-11-02 20:53:26,891 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:53:26,895 INFO  L413           NwaCegarLoop]: 11469 mSDtfsCounter, 34401 mSDsluCounter, 11472 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34401 SdHoareTripleChecker+Valid, 22941 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:53:26,896 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [34401 Valid, 22941 Invalid, 9 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time]
[2022-11-02 20:53:26,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15298 states.
[2022-11-02 20:53:27,324 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15298 to 7653.
[2022-11-02 20:53:27,341 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7653 states, 7652 states have (on average 1.4996079456351281) internal successors, (11475), 7652 states have internal predecessors, (11475), 0 states have call successors, (0), 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 20:53:27,365 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7653 states to 7653 states and 11475 transitions.
[2022-11-02 20:53:27,366 INFO  L78                 Accepts]: Start accepts. Automaton has 7653 states and 11475 transitions. Word has length 5
[2022-11-02 20:53:27,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:53:27,367 INFO  L495      AbstractCegarLoop]: Abstraction has 7653 states and 11475 transitions.
[2022-11-02 20:53:27,368 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 20:53:27,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 7653 states and 11475 transitions.
[2022-11-02 20:53:27,877 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7653
[2022-11-02 20:53:27,877 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-02 20:53:27,882 INFO  L195           NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:53:27,883 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 20:53:27,883 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:53:27,884 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:53:27,888 INFO  L85        PathProgramCache]: Analyzing trace with hash 624115079, now seen corresponding path program 1 times
[2022-11-02 20:53:27,888 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:53:27,888 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499983139]
[2022-11-02 20:53:27,891 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:53:27,892 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:53:30,523 ERROR L245   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:53:30,523 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954533268]
[2022-11-02 20:53:30,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:53:30,526 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:53:30,526 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:53:30,529 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:53:30,541 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff27ff9d-f08b-4145-a04f-08680b02dddd/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 20:54:17,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:54:18,077 INFO  L263         TraceCheckSpWp]: Trace formula consists of 77753 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-02 20:54:18,434 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:55:36,091 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:55:36,092 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:55:36,092 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:55:36,092 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499983139]
[2022-11-02 20:55:36,093 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:55:36,093 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954533268]
[2022-11-02 20:55:36,093 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [954533268] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:55:36,094 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:55:36,095 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:55:36,096 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230471649]
[2022-11-02 20:55:36,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:55:36,108 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:55:36,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:55:36,109 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:55:36,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:55:36,123 INFO  L87              Difference]: Start difference. First operand 7653 states and 11475 transitions. Second operand  has 5 states, 5 states have (on average 1530.4) internal successors, (7652), 5 states have internal predecessors, (7652), 0 states have call successors, (0), 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 20:55:37,616 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:55:37,616 INFO  L93              Difference]: Finished difference Result 38144 states and 57202 transitions.
[2022-11-02 20:55:37,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-11-02 20:55:37,622 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1530.4) internal successors, (7652), 5 states have internal predecessors, (7652), 0 states have call successors, (0), 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 7652
[2022-11-02 20:55:37,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:55:37,712 INFO  L225             Difference]: With dead ends: 38144
[2022-11-02 20:55:37,712 INFO  L226             Difference]: Without dead ends: 30495
[2022-11-02 20:55:37,727 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7656 GetRequests, 7650 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:55:37,729 INFO  L413           NwaCegarLoop]: 22788 mSDtfsCounter, 49797 mSDsluCounter, 34417 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49797 SdHoareTripleChecker+Valid, 57205 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-11-02 20:55:37,730 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [49797 Valid, 57205 Invalid, 22 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-11-02 20:55:37,763 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30495 states.
[2022-11-02 20:55:38,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30495 to 15197.
[2022-11-02 20:55:38,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15197 states, 15196 states have (on average 1.4997367728349567) internal successors, (22790), 15196 states have internal predecessors, (22790), 0 states have call successors, (0), 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 20:55:38,114 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15197 states to 15197 states and 22790 transitions.
[2022-11-02 20:55:38,117 INFO  L78                 Accepts]: Start accepts. Automaton has 15197 states and 22790 transitions. Word has length 7652
[2022-11-02 20:55:38,144 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:55:38,144 INFO  L495      AbstractCegarLoop]: Abstraction has 15197 states and 22790 transitions.
[2022-11-02 20:55:38,148 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1530.4) internal successors, (7652), 5 states have internal predecessors, (7652), 0 states have call successors, (0), 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 20:55:38,149 INFO  L276                IsEmpty]: Start isEmpty. Operand 15197 states and 22790 transitions.