./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD --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 72cd0a4215707a62376e213156123902caf611a87605e41064b672632b6ef1f9
..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:27:50,940 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:27:50,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:27:50,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:27:50,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:27:50,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:27:50,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:27:50,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:27:50,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:27:50,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:27:50,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:27:51,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:27:51,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:27:51,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:27:51,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:27:51,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:27:51,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:27:51,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:27:51,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:27:51,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:27:51,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:27:51,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:27:51,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:27:51,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:27:51,027 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:27:51,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:27:51,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:27:51,029 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:27:51,030 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:27:51,031 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:27:51,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:27:51,033 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:27:51,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:27:51,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:27:51,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:27:51,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:27:51,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:27:51,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:27:51,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:27:51,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:27:51,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:27:51,041 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-28 23:27:51,082 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:27:51,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:27:51,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:27:51,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:27:51,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:27:51,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:27:51,095 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:27:51,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:27:51,096 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:27:51,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:27:51,097 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:27:51,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:27:51,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-28 23:27:51,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:27:51,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-28 23:27:51,099 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:27:51,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-28 23:27:51,099 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:27:51,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-28 23:27:51,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:27:51,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:27:51,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:27:51,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:27:51,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:27:51,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:27:51,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-28 23:27:51,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:27:51,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:27:51,101 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-10-28 23:27:51,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-28 23:27:51,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-28 23:27:51,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:27:51,104 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_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72cd0a4215707a62376e213156123902caf611a87605e41064b672632b6ef1f9
[2021-10-28 23:27:51,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:27:51,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:27:51,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:27:51,463 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:27:51,464 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:27:51,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c
[2021-10-28 23:27:51,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/data/584061d55/04c45b7ec4c74f278df60ffb009fa349/FLAGc2c7cf207
[2021-10-28 23:27:51,921 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:27:51,922 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c
[2021-10-28 23:27:51,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/data/584061d55/04c45b7ec4c74f278df60ffb009fa349/FLAGc2c7cf207
[2021-10-28 23:27:52,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/data/584061d55/04c45b7ec4c74f278df60ffb009fa349
[2021-10-28 23:27:52,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:27:52,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-28 23:27:52,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:27:52,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:27:52,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:27:52,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b381a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52, skipping insertion in model container
[2021-10-28 23:27:52,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:27:52,434 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:27:52,578 WARN L228 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_7950e17a-f487-4995-a174-072cdafc7458/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c[597,610]
[2021-10-28 23:27:52,594 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:27:52,603 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:27:52,616 WARN L228 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_7950e17a-f487-4995-a174-072cdafc7458/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound2.c[597,610]
[2021-10-28 23:27:52,624 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:27:52,638 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:27:52,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52 WrapperNode
[2021-10-28 23:27:52,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:27:52,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-28 23:27:52,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-28 23:27:52,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-28 23:27:52,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-28 23:27:52,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:27:52,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:27:52,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:27:52,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:27:52,701 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:27:52,701 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:27:52,701 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:27:52,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (1/1) ...
[2021-10-28 23:27:52,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:27:52,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:52,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:27:52,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:27:52,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:27:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:27:52,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:27:52,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:27:53,066 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:27:53,067 INFO L299 CfgBuilder]: Removed 13 assume(true) statements.
[2021-10-28 23:27:53,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:27:53 BoogieIcfgContainer
[2021-10-28 23:27:53,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:27:53,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:27:53,074 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:27:53,078 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:27:53,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:27:52" (1/3) ...
[2021-10-28 23:27:53,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d455b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:27:53, skipping insertion in model container
[2021-10-28 23:27:53,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:27:52" (2/3) ...
[2021-10-28 23:27:53,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d455b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:27:53, skipping insertion in model container
[2021-10-28 23:27:53,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:27:53" (3/3) ...
[2021-10-28 23:27:53,085 INFO L111 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound2.c
[2021-10-28 23:27:53,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:27:53,098 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2021-10-28 23:27:53,148 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:27:53,156 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 23:27:53,156 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-10-28 23:27:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:27:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-28 23:27:53,176 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:53,177 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:53,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:53,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times
[2021-10-28 23:27:53,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:53,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343956297]
[2021-10-28 23:27:53,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:53,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:53,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:27:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:53,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:53,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343956297]
[2021-10-28 23:27:53,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343956297] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:27:53,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:27:53,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-28 23:27:53,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861794934]
[2021-10-28 23:27:53,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-28 23:27:53,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:53,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-28 23:27:53,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 23:27:53,369 INFO L87 Difference]: Start difference. First operand has 21 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2021-10-28 23:27:53,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:53,384 INFO L93 Difference]: Finished difference Result 39 states and 52 transitions.
[2021-10-28 23:27:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-10-28 23:27:53,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9
[2021-10-28 23:27:53,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:53,393 INFO L225 Difference]: With dead ends: 39
[2021-10-28 23:27:53,394 INFO L226 Difference]: Without dead ends: 17
[2021-10-28 23:27:53,396 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-28 23:27:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2021-10-28 23:27:53,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2021-10-28 23:27:53,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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)
[2021-10-28 23:27:53,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions.
[2021-10-28 23:27:53,427 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9
[2021-10-28 23:27:53,427 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:53,427 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions.
[2021-10-28 23:27:53,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2021-10-28 23:27:53,428 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions.
[2021-10-28 23:27:53,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-28 23:27:53,428 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:53,429 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:53,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:27:53,429 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:53,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:53,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times
[2021-10-28 23:27:53,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:53,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102769206]
[2021-10-28 23:27:53,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:53,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:53,450 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:53,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1636441021]
[2021-10-28 23:27:53,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:53,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:53,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:53,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-28 23:27:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:27:53,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core
[2021-10-28 23:27:53,597 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:27:53,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:53,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:53,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102769206]
[2021-10-28 23:27:53,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:27:53,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636441021]
[2021-10-28 23:27:53,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636441021] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:27:53,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:27:53,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:27:53,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832926649]
[2021-10-28 23:27:53,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-28 23:27:53,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:53,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-28 23:27:53,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-10-28 23:27:53,725 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2021-10-28 23:27:53,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:53,779 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions.
[2021-10-28 23:27:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-28 23:27:53,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9
[2021-10-28 23:27:53,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:53,781 INFO L225 Difference]: With dead ends: 29
[2021-10-28 23:27:53,781 INFO L226 Difference]: Without dead ends: 23
[2021-10-28 23:27:53,782 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:27:53,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2021-10-28 23:27:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20.
[2021-10-28 23:27:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:27:53,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions.
[2021-10-28 23:27:53,787 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 9
[2021-10-28 23:27:53,787 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:53,787 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions.
[2021-10-28 23:27:53,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2021-10-28 23:27:53,788 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions.
[2021-10-28 23:27:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-10-28 23:27:53,788 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:53,788 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:53,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-28 23:27:54,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:54,007 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:54,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash -2039286562, now seen corresponding path program 1 times
[2021-10-28 23:27:54,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:54,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298866746]
[2021-10-28 23:27:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:54,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:54,041 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:54,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214991085]
[2021-10-28 23:27:54,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:54,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:54,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:54,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:54,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-10-28 23:27:54,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:27:54,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-10-28 23:27:54,114 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:27:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:54,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:54,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298866746]
[2021-10-28 23:27:54,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:27:54,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214991085]
[2021-10-28 23:27:54,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214991085] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:27:54,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:27:54,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9
[2021-10-28 23:27:54,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900459763]
[2021-10-28 23:27:54,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-10-28 23:27:54,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:54,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-10-28 23:27:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2021-10-28 23:27:54,728 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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)
[2021-10-28 23:27:55,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:55,041 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions.
[2021-10-28 23:27:55,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2021-10-28 23:27:55,042 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 14
[2021-10-28 23:27:55,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:55,043 INFO L225 Difference]: With dead ends: 41
[2021-10-28 23:27:55,043 INFO L226 Difference]: Without dead ends: 21
[2021-10-28 23:27:55,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182
[2021-10-28 23:27:55,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2021-10-28 23:27:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2021-10-28 23:27:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 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)
[2021-10-28 23:27:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2021-10-28 23:27:55,048 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14
[2021-10-28 23:27:55,048 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:55,048 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2021-10-28 23:27:55,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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)
[2021-10-28 23:27:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2021-10-28 23:27:55,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-10-28 23:27:55,049 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:55,049 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:55,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-10-28 23:27:55,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:55,259 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:55,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2037439520, now seen corresponding path program 1 times
[2021-10-28 23:27:55,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:55,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380293489]
[2021-10-28 23:27:55,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:55,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:55,286 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:55,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2031066116]
[2021-10-28 23:27:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:55,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:55,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:55,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:55,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2021-10-28 23:27:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:27:55,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 21 conjunts are in the unsatisfiable core
[2021-10-28 23:27:55,383 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:27:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:55,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:55,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380293489]
[2021-10-28 23:27:55,527 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:27:55,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031066116]
[2021-10-28 23:27:55,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031066116] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:27:55,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:27:55,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2021-10-28 23:27:55,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983108584]
[2021-10-28 23:27:55,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 23:27:55,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:55,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:27:55,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:27:55,534 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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)
[2021-10-28 23:27:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:55,629 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions.
[2021-10-28 23:27:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-10-28 23:27:55,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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 14
[2021-10-28 23:27:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:55,630 INFO L225 Difference]: With dead ends: 34
[2021-10-28 23:27:55,631 INFO L226 Difference]: Without dead ends: 32
[2021-10-28 23:27:55,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2021-10-28 23:27:55,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2021-10-28 23:27:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24.
[2021-10-28 23:27:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 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)
[2021-10-28 23:27:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions.
[2021-10-28 23:27:55,642 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14
[2021-10-28 23:27:55,642 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:55,642 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions.
[2021-10-28 23:27:55,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 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)
[2021-10-28 23:27:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions.
[2021-10-28 23:27:55,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-10-28 23:27:55,644 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:55,644 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:55,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2021-10-28 23:27:55,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:55,870 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:55,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:55,870 INFO L85 PathProgramCache]: Analyzing trace with hash -878006574, now seen corresponding path program 1 times
[2021-10-28 23:27:55,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:55,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479665073]
[2021-10-28 23:27:55,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:55,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:55,885 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:55,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [68645131]
[2021-10-28 23:27:55,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:55,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:55,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:55,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:55,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2021-10-28 23:27:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:27:56,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 26 conjunts are in the unsatisfiable core
[2021-10-28 23:27:56,006 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:27:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:56,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:56,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479665073]
[2021-10-28 23:27:56,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:27:56,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68645131]
[2021-10-28 23:27:56,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68645131] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:27:56,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:27:56,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10
[2021-10-28 23:27:56,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592023710]
[2021-10-28 23:27:56,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-28 23:27:56,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:56,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-28 23:27:56,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2021-10-28 23:27:56,333 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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)
[2021-10-28 23:27:56,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:56,480 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions.
[2021-10-28 23:27:56,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-10-28 23:27:56,481 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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 17
[2021-10-28 23:27:56,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:56,482 INFO L225 Difference]: With dead ends: 33
[2021-10-28 23:27:56,482 INFO L226 Difference]: Without dead ends: 29
[2021-10-28 23:27:56,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156
[2021-10-28 23:27:56,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2021-10-28 23:27:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 25.
[2021-10-28 23:27:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 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)
[2021-10-28 23:27:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions.
[2021-10-28 23:27:56,491 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 17
[2021-10-28 23:27:56,491 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:56,492 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions.
[2021-10-28 23:27:56,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.7) internal successors, (17), 10 states have internal predecessors, (17), 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)
[2021-10-28 23:27:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions.
[2021-10-28 23:27:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 23:27:56,493 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:56,493 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:56,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2021-10-28 23:27:56,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:56,706 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:56,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1901094894, now seen corresponding path program 1 times
[2021-10-28 23:27:56,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:56,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560259657]
[2021-10-28 23:27:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:56,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:56,720 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:56,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1502510810]
[2021-10-28 23:27:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:56,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:56,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:56,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:56,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2021-10-28 23:27:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:27:56,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 39 conjunts are in the unsatisfiable core
[2021-10-28 23:27:56,885 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:27:57,582 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:57,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:57,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560259657]
[2021-10-28 23:27:57,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:27:57,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502510810]
[2021-10-28 23:27:57,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502510810] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:27:57,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:27:57,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2021-10-28 23:27:57,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000695635]
[2021-10-28 23:27:57,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-10-28 23:27:57,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:57,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-28 23:27:57,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132
[2021-10-28 23:27:57,586 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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)
[2021-10-28 23:27:57,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:57,846 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions.
[2021-10-28 23:27:57,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-10-28 23:27:57,847 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 19
[2021-10-28 23:27:57,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:57,848 INFO L225 Difference]: With dead ends: 44
[2021-10-28 23:27:57,848 INFO L226 Difference]: Without dead ends: 33
[2021-10-28 23:27:57,848 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272
[2021-10-28 23:27:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states.
[2021-10-28 23:27:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31.
[2021-10-28 23:27:57,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:27:57,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2021-10-28 23:27:57,859 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 19
[2021-10-28 23:27:57,859 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:57,860 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2021-10-28 23:27:57,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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)
[2021-10-28 23:27:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2021-10-28 23:27:57,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 23:27:57,862 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:57,862 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:57,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2021-10-28 23:27:58,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:58,079 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1899247852, now seen corresponding path program 2 times
[2021-10-28 23:27:58,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:58,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684645352]
[2021-10-28 23:27:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:58,080 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:58,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:58,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [697012827]
[2021-10-28 23:27:58,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:27:58,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:58,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:58,090 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:58,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2021-10-28 23:27:58,269 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:27:58,269 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:27:58,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 45 conjunts are in the unsatisfiable core
[2021-10-28 23:27:58,273 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:27:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:27:58,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:27:58,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684645352]
[2021-10-28 23:27:58,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:27:58,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697012827]
[2021-10-28 23:27:58,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697012827] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:27:58,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:27:58,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2021-10-28 23:27:58,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365716775]
[2021-10-28 23:27:58,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-10-28 23:27:58,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:27:58,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-28 23:27:58,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2021-10-28 23:27:58,830 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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)
[2021-10-28 23:27:59,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:27:59,314 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions.
[2021-10-28 23:27:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-10-28 23:27:59,315 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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 19
[2021-10-28 23:27:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:27:59,316 INFO L225 Difference]: With dead ends: 53
[2021-10-28 23:27:59,316 INFO L226 Difference]: Without dead ends: 42
[2021-10-28 23:27:59,317 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506
[2021-10-28 23:27:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2021-10-28 23:27:59,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 35.
[2021-10-28 23:27:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:27:59,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions.
[2021-10-28 23:27:59,322 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 19
[2021-10-28 23:27:59,323 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:27:59,323 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions.
[2021-10-28 23:27:59,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 12 states have internal predecessors, (19), 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)
[2021-10-28 23:27:59,323 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions.
[2021-10-28 23:27:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2021-10-28 23:27:59,324 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:27:59,324 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:27:59,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2021-10-28 23:27:59,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2021-10-28 23:27:59,543 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:27:59,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:27:59,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1411305246, now seen corresponding path program 2 times
[2021-10-28 23:27:59,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:27:59,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904197763]
[2021-10-28 23:27:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:27:59,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:27:59,554 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:27:59,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1268333220]
[2021-10-28 23:27:59,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:27:59,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:27:59,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:27:59,556 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:27:59,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2021-10-28 23:27:59,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:27:59,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:27:59,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 30 conjunts are in the unsatisfiable core
[2021-10-28 23:27:59,716 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:28:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:28:00,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:28:00,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904197763]
[2021-10-28 23:28:00,136 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:28:00,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268333220]
[2021-10-28 23:28:00,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268333220] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:28:00,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:28:00,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12
[2021-10-28 23:28:00,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006395172]
[2021-10-28 23:28:00,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2021-10-28 23:28:00,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:28:00,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-28 23:28:00,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132
[2021-10-28 23:28:00,138 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 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)
[2021-10-28 23:28:00,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:28:00,300 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions.
[2021-10-28 23:28:00,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-10-28 23:28:00,301 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 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 22
[2021-10-28 23:28:00,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:28:00,302 INFO L225 Difference]: With dead ends: 42
[2021-10-28 23:28:00,302 INFO L226 Difference]: Without dead ends: 38
[2021-10-28 23:28:00,303 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182
[2021-10-28 23:28:00,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2021-10-28 23:28:00,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 31.
[2021-10-28 23:28:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:28:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions.
[2021-10-28 23:28:00,309 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 22
[2021-10-28 23:28:00,309 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:28:00,309 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions.
[2021-10-28 23:28:00,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 12 states have internal predecessors, (22), 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)
[2021-10-28 23:28:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions.
[2021-10-28 23:28:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-28 23:28:00,310 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:28:00,310 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:28:00,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2021-10-28 23:28:00,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:00,529 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:28:00,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:28:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash -500817374, now seen corresponding path program 2 times
[2021-10-28 23:28:00,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:28:00,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093911410]
[2021-10-28 23:28:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:28:00,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:28:00,551 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:28:00,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862243738]
[2021-10-28 23:28:00,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-10-28 23:28:00,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:00,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:28:00,557 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:28:00,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2021-10-28 23:28:00,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-28 23:28:00,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:28:00,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 54 conjunts are in the unsatisfiable core
[2021-10-28 23:28:00,750 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:28:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:28:01,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:28:01,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093911410]
[2021-10-28 23:28:01,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:28:01,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862243738]
[2021-10-28 23:28:01,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862243738] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:28:01,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:28:01,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15
[2021-10-28 23:28:01,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701501651]
[2021-10-28 23:28:01,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2021-10-28 23:28:01,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:28:01,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2021-10-28 23:28:01,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210
[2021-10-28 23:28:01,629 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 15 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 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)
[2021-10-28 23:28:02,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:28:02,081 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions.
[2021-10-28 23:28:02,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-10-28 23:28:02,082 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 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 24
[2021-10-28 23:28:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:28:02,083 INFO L225 Difference]: With dead ends: 53
[2021-10-28 23:28:02,083 INFO L226 Difference]: Without dead ends: 31
[2021-10-28 23:28:02,084 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600
[2021-10-28 23:28:02,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2021-10-28 23:28:02,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2021-10-28 23:28:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 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)
[2021-10-28 23:28:02,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions.
[2021-10-28 23:28:02,088 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 24
[2021-10-28 23:28:02,089 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:28:02,089 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions.
[2021-10-28 23:28:02,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 15 states have internal predecessors, (24), 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)
[2021-10-28 23:28:02,089 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions.
[2021-10-28 23:28:02,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-28 23:28:02,090 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:28:02,090 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:28:02,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2021-10-28 23:28:02,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:02,307 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:28:02,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:28:02,308 INFO L85 PathProgramCache]: Analyzing trace with hash -893844384, now seen corresponding path program 3 times
[2021-10-28 23:28:02,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:28:02,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334222874]
[2021-10-28 23:28:02,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:28:02,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:28:02,326 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:28:02,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696631089]
[2021-10-28 23:28:02,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:28:02,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:02,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:28:02,328 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:28:02,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2021-10-28 23:28:02,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-10-28 23:28:02,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:28:02,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 42 conjunts are in the unsatisfiable core
[2021-10-28 23:28:02,537 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:28:03,275 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-28 23:28:03,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:28:03,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334222874]
[2021-10-28 23:28:03,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:28:03,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696631089]
[2021-10-28 23:28:03,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696631089] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-28 23:28:03,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2021-10-28 23:28:03,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2021-10-28 23:28:03,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576067339]
[2021-10-28 23:28:03,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-10-28 23:28:03,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:28:03,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-10-28 23:28:03,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156
[2021-10-28 23:28:03,280 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:28:04,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:28:04,891 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions.
[2021-10-28 23:28:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-10-28 23:28:04,891 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2021-10-28 23:28:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:28:04,892 INFO L225 Difference]: With dead ends: 31
[2021-10-28 23:28:04,892 INFO L226 Difference]: Without dead ends: 29
[2021-10-28 23:28:04,895 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462
[2021-10-28 23:28:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2021-10-28 23:28:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2021-10-28 23:28:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 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)
[2021-10-28 23:28:04,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions.
[2021-10-28 23:28:04,914 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 24
[2021-10-28 23:28:04,914 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:28:04,914 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions.
[2021-10-28 23:28:04,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:28:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions.
[2021-10-28 23:28:04,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 23:28:04,918 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:28:04,918 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:28:04,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2021-10-28 23:28:05,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:05,147 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-28 23:28:05,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:28:05,147 INFO L85 PathProgramCache]: Analyzing trace with hash 284098130, now seen corresponding path program 3 times
[2021-10-28 23:28:05,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:28:05,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578442472]
[2021-10-28 23:28:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:28:05,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:28:05,166 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2021-10-28 23:28:05,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027526838]
[2021-10-28 23:28:05,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2021-10-28 23:28:05,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:05,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:28:05,171 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-28 23:28:05,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2021-10-28 23:28:05,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-10-28 23:28:05,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-28 23:28:05,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-10-28 23:28:05,440 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-28 23:28:06,049 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2021-10-28 23:28:06,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:28:06,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578442472]
[2021-10-28 23:28:06,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown
[2021-10-28 23:28:06,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027526838]
[2021-10-28 23:28:06,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027526838] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:28:06,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:28:06,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2021-10-28 23:28:06,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460232763]
[2021-10-28 23:28:06,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-10-28 23:28:06,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:28:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-10-28 23:28:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90
[2021-10-28 23:28:06,052 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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)
[2021-10-28 23:28:06,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:28:06,382 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions.
[2021-10-28 23:28:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-10-28 23:28:06,383 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 27
[2021-10-28 23:28:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:28:06,383 INFO L225 Difference]: With dead ends: 29
[2021-10-28 23:28:06,383 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 23:28:06,384 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272
[2021-10-28 23:28:06,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 23:28:06,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 23:28:06,384 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)
[2021-10-28 23:28:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 23:28:06,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27
[2021-10-28 23:28:06,384 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:28:06,385 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 23:28:06,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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)
[2021-10-28 23:28:06,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 23:28:06,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 23:28:06,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:28:06,388 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-28 23:28:06,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2021-10-28 23:28:06,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-28 23:28:06,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-28 23:28:06,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:28:06,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:28:06,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:28:06,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms
[2021-10-28 23:28:07,119 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed.
[2021-10-28 23:28:07,119 INFO L860 garLoopResultBuilder]: At program point L52(lines 21 53) the Hoare annotation is: true
[2021-10-28 23:28:07,119 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 16) no Hoare annotation was computed.
[2021-10-28 23:28:07,119 INFO L857 garLoopResultBuilder]: For program point L15-1(lines 15 16) no Hoare annotation was computed.
[2021-10-28 23:28:07,119 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed.
[2021-10-28 23:28:07,120 INFO L857 garLoopResultBuilder]: For program point L11-2(line 11) no Hoare annotation was computed.
[2021-10-28 23:28:07,120 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 45) no Hoare annotation was computed.
[2021-10-28 23:28:07,120 INFO L857 garLoopResultBuilder]: For program point L40-2(lines 40 45) no Hoare annotation was computed.
[2021-10-28 23:28:07,120 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-28 23:28:07,120 INFO L853 garLoopResultBuilder]: At program point L32-2(lines 32 47) the Hoare annotation is: (let ((.cse6 (<= ULTIMATE.start_main_~Y~0 2)) (.cse2 (* 2 ULTIMATE.start_main_~Y~0)) (.cse7 (= ULTIMATE.start_main_~y~0 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse4 (<= 0 ULTIMATE.start_main_~Y~0)) (.cse8 (+ ULTIMATE.start_main_~X~0 ULTIMATE.start_main_~v~0)) (.cse5 (<= ULTIMATE.start_main_~X~0 2))) (or (let ((.cse3 (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~X~0))) (.cse1 (* 2 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~Y~0)))) (and (<= 0 ULTIMATE.start_main_~X~0) .cse0 (= (+ .cse1 .cse2) (+ ULTIMATE.start_main_~X~0 ULTIMATE.start_main_~v~0 .cse3)) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= .cse2 (+ ULTIMATE.start_main_~v~0 (* 2 ULTIMATE.start_main_~X~0))) .cse4 (<= (+ .cse3 .cse2) (+ (* 3 ULTIMATE.start_main_~X~0) .cse1)) .cse5 .cse6 (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~X~0 1)))) (and .cse7 (= ULTIMATE.start_main_~x~0 0) .cse0 (= .cse2 .cse8) .cse4 (<= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~X~0) .cse5 .cse6) (and (< ULTIMATE.start_main_~v~0 .cse2) .cse7 .cse0 .cse4 (= (* 4 ULTIMATE.start_main_~Y~0) .cse8) .cse5)))
[2021-10-28 23:28:07,121 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-28 23:28:07,121 INFO L857 garLoopResultBuilder]: For program point L32-3(lines 32 47) no Hoare annotation was computed.
[2021-10-28 23:28:07,121 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-28 23:28:07,121 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed.
[2021-10-28 23:28:07,121 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-28 23:28:07,122 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 17) no Hoare annotation was computed.
[2021-10-28 23:28:07,122 INFO L853 garLoopResultBuilder]: At program point L14-2(lines 36 37) the Hoare annotation is: (let ((.cse8 (* 2 (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~Y~0))) (.cse6 (* 2 ULTIMATE.start_main_~Y~0)) (.cse5 (* 2 (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~X~0)))) (let ((.cse1 (= (+ .cse8 .cse6) (+ ULTIMATE.start_main_~X~0 ULTIMATE.start_main_~v~0 .cse5))) (.cse2 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse3 (<= .cse6 (+ ULTIMATE.start_main_~v~0 (* 2 ULTIMATE.start_main_~X~0)))) (.cse10 (<= ULTIMATE.start_main_~Y~0 2)) (.cse7 (* 3 ULTIMATE.start_main_~X~0)) (.cse11 (= ULTIMATE.start_main_~y~0 0)) (.cse0 (= ULTIMATE.start_assume_abort_if_not_~cond 1)) (.cse12 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse4 (<= 0 ULTIMATE.start_main_~Y~0)) (.cse13 (* 4 ULTIMATE.start_main_~Y~0)) (.cse9 (<= ULTIMATE.start_main_~X~0 2))) (or (and (<= 0 ULTIMATE.start_main_~X~0) .cse0 .cse1 .cse2 .cse3 .cse4 (<= (+ .cse5 .cse6) (+ .cse7 .cse8)) .cse9 .cse10 (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~X~0 1))) (and .cse11 .cse0 .cse1 .cse2 .cse3 .cse4 (<= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~X~0) .cse9 .cse10) (and .cse0 (= (+ .cse8 (* 4 ULTIMATE.start_main_~X~0)) (+ .cse5 (* 6 ULTIMATE.start_main_~Y~0))) .cse12 (= (* 8 ULTIMATE.start_main_~Y~0) (+ ULTIMATE.start_main_~v~0 (* 5 ULTIMATE.start_main_~X~0))) (< .cse13 .cse7) (<= ULTIMATE.start_main_~X~0 .cse6) (= ULTIMATE.start_main_~y~0 2) .cse9) (and (< ULTIMATE.start_main_~v~0 .cse6) .cse11 .cse0 .cse12 .cse4 (= .cse13 (+ ULTIMATE.start_main_~X~0 ULTIMATE.start_main_~v~0)) .cse9))))
[2021-10-28 23:28:07,122 INFO L857 garLoopResultBuilder]: For program point L14-3(lines 14 17) no Hoare annotation was computed.
[2021-10-28 23:28:07,122 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed.
[2021-10-28 23:28:07,123 INFO L857 garLoopResultBuilder]: For program point L10-1(lines 10 12) no Hoare annotation was computed.
[2021-10-28 23:28:07,123 INFO L860 garLoopResultBuilder]: At program point L14-5(lines 13 19) the Hoare annotation is: true
[2021-10-28 23:28:07,126 INFO L731 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1]
[2021-10-28 23:28:07,128 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:28:07,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:28:07 BoogieIcfgContainer
[2021-10-28 23:28:07,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:28:07,151 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:28:07,151 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:28:07,151 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:28:07,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:27:53" (3/4) ...
[2021-10-28 23:28:07,155 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 23:28:07,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2021-10-28 23:28:07,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-28 23:28:07,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:28:07,167 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:28:07,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:28:07,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:28:07,206 INFO L168 Benchmark]: Toolchain (without parser) took 14862.27 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 43.9 MB in the beginning and 34.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 52.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,207 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,207 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.60 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 43.7 MB in the beginning and 74.1 MB in the end (delta: -30.4 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.92 ms. Allocated memory is still 104.9 MB. Free memory was 74.1 MB in the beginning and 72.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,208 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 ms. Allocated memory is still 104.9 MB. Free memory was 72.5 MB in the beginning and 71.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,208 INFO L168 Benchmark]: RCFGBuilder took 370.14 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 61.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,209 INFO L168 Benchmark]: TraceAbstraction took 14076.38 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 38.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,209 INFO L168 Benchmark]: Witness Printer took 53.50 ms. Allocated memory is still 127.9 MB. Free memory was 38.0 MB in the beginning and 34.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:28:07,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 59.9 MB in the beginning and 59.9 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 294.60 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 43.7 MB in the beginning and 74.1 MB in the end (delta: -30.4 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 36.92 ms. Allocated memory is still 104.9 MB. Free memory was 74.1 MB in the beginning and 72.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 22.27 ms. Allocated memory is still 104.9 MB. Free memory was 72.5 MB in the beginning and 71.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 370.14 ms. Allocated memory is still 104.9 MB. Free memory was 71.4 MB in the beginning and 61.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 14076.38 ms. Allocated memory was 104.9 MB in the beginning and 127.9 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 38.0 MB in the end (delta: 22.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.1 GB.
* Witness Printer took 53.50 ms. Allocated memory is still 127.9 MB. Free memory was 38.0 MB in the beginning and 34.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* 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: 16]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- PositiveResult [Line: 16]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 116 SDtfs, 313 SDslu, 343 SDs, 0 SdLazy, 918 SolverSat, 146 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=7, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 21 NumberOfFragments, 328 HoareAnnotationTreeSize, 4 FomulaSimplifications, 2802 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 446 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 198 NumberOfCodeBlocks, 183 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 2804 SizeOfPredicates, 131 NumberOfNonLiveVariables, 939 ConjunctsInSsa, 318 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 41/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
2 specifications checked. All of them hold
- InvariantResult [Line: 32]: Loop Invariant
Derived loop invariant: ((((((((((0 <= X && cond == 1) && 2 * (x * Y) + 2 * Y == X + v + 2 * (y * X)) && 1 <= cond) && 2 * Y <= v + 2 * X) && 0 <= Y) && 2 * (y * X) + 2 * Y <= 3 * X + 2 * (x * Y)) && X <= 2) && Y <= 2) && x <= X + 1) || (((((((y == 0 && x == 0) && cond == 1) && 2 * Y == X + v) && 0 <= Y) && x <= X) && X <= 2) && Y <= 2)) || (((((v < 2 * Y && y == 0) && cond == 1) && 0 <= Y) && 4 * Y == X + v) && X <= 2)
- InvariantResult [Line: 13]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 21]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 36]: Loop Invariant
Derived loop invariant: (((((((((((0 <= X && cond == 1) && 2 * (x * Y) + 2 * Y == X + v + 2 * (y * X)) && 1 == cond) && 2 * Y <= v + 2 * X) && 0 <= Y) && 2 * (y * X) + 2 * Y <= 3 * X + 2 * (x * Y)) && X <= 2) && Y <= 2) && x <= X + 1) || ((((((((y == 0 && cond == 1) && 2 * (x * Y) + 2 * Y == X + v + 2 * (y * X)) && 1 == cond) && 2 * Y <= v + 2 * X) && 0 <= Y) && x <= X) && X <= 2) && Y <= 2)) || (((((((cond == 1 && 2 * (x * Y) + 4 * X == 2 * (y * X) + 6 * Y) && 1 <= cond) && 8 * Y == v + 5 * X) && 4 * Y < 3 * X) && X <= 2 * Y) && y == 2) && X <= 2)) || ((((((v < 2 * Y && y == 0) && cond == 1) && 1 <= cond) && 0 <= Y) && 4 * Y == X + v) && X <= 2)
RESULT: Ultimate proved your program to be correct!
[2021-10-28 23:28:07,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7950e17a-f487-4995-a174-072cdafc7458/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...