./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/bhmr2007.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/bhmr2007.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 07cb9038cdaf0e413365ff784390031a7ba733892c02a00ed18b47b0bbaf3c4d
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 21:07:03,182 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:07:03,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:07:03,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:07:03,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:07:03,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:07:03,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:07:03,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:07:03,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:07:03,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:07:03,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:07:03,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:07:03,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:07:03,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:07:03,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:07:03,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:07:03,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:07:03,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:07:03,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:07:03,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:07:03,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:07:03,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:07:03,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:07:03,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:07:03,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:07:03,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:07:03,249 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:07:03,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:07:03,250 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:07:03,251 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:07:03,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:07:03,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:07:03,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:07:03,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:07:03,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:07:03,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:07:03,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:07:03,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:07:03,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:07:03,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:07:03,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:07:03,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 21:07:03,313 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 21:07:03,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:07:03,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:07:03,314 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:07:03,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:07:03,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:07:03,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:07:03,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 21:07:03,316 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 21:07:03,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:07:03,321 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 21:07:03,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 21:07:03,322 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 21:07:03,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 21:07:03,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:07:03,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:07:03,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:07:03,322 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 21:07:03,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 21:07:03,323 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 21:07:03,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:07:03,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:07:03,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 21:07:03,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 21:07:03,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:07:03,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:07:03,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:07:03,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:07:03,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 21:07:03,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 21:07:03,325 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:07:03,325 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:07:03,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:07:03,326 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_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07cb9038cdaf0e413365ff784390031a7ba733892c02a00ed18b47b0bbaf3c4d
[2022-11-02 21:07:03,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:07:03,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:07:03,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:07:03,655 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 21:07:03,657 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 21:07:03,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/loop-lit/bhmr2007.i
[2022-11-02 21:07:03,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/data/08ff8c4ba/60b80e2dd7624dc9a72fdfa132c70a3b/FLAG094864ded
[2022-11-02 21:07:04,149 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 21:07:04,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/sv-benchmarks/c/loop-lit/bhmr2007.i
[2022-11-02 21:07:04,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/data/08ff8c4ba/60b80e2dd7624dc9a72fdfa132c70a3b/FLAG094864ded
[2022-11-02 21:07:04,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/data/08ff8c4ba/60b80e2dd7624dc9a72fdfa132c70a3b
[2022-11-02 21:07:04,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:07:04,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:07:04,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:07:04,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:07:04,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:07:04,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c83c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04, skipping insertion in model container
[2022-11-02 21:07:04,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 21:07:04,600 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:07:04,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908]
[2022-11-02 21:07:04,894 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:07:04,904 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 21:07:04,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/sv-benchmarks/c/loop-lit/bhmr2007.i[895,908]
[2022-11-02 21:07:04,923 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:07:04,938 INFO L208 MainTranslator]: Completed translation
[2022-11-02 21:07:04,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04 WrapperNode
[2022-11-02 21:07:04,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:07:04,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:07:04,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:07:04,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:07:04,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,978 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44
[2022-11-02 21:07:04,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:07:04,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:07:04,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:07:04,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:07:04,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:04,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:05,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:05,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:05,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:05,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:05,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:07:05,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:07:05,014 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:07:05,014 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:07:05,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (1/1) ...
[2022-11-02 21:07:05,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:07:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:07:05,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:07:05,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:07:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:07:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 21:07:05,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:07:05,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:07:05,201 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 21:07:05,204 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:07:05,334 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 21:07:05,341 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:07:05,341 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 21:07:05,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:05 BoogieIcfgContainer
[2022-11-02 21:07:05,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:07:05,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:07:05,346 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:07:05,351 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:07:05,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:07:04" (1/3) ...
[2022-11-02 21:07:05,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d72f5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:05, skipping insertion in model container
[2022-11-02 21:07:05,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:07:04" (2/3) ...
[2022-11-02 21:07:05,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d72f5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:07:05, skipping insertion in model container
[2022-11-02 21:07:05,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:05" (3/3) ...
[2022-11-02 21:07:05,355 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007.i
[2022-11-02 21:07:05,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:07:05,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 21:07:05,427 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:07:05,435 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e7957e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:07:05,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 21:07:05,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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)
[2022-11-02 21:07:05,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 21:07:05,447 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:05,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:05,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1807304968, now seen corresponding path program 1 times
[2022-11-02 21:07:05,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:07:05,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492048301]
[2022-11-02 21:07:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:05,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:07:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:05,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:05,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:07:05,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492048301]
[2022-11-02 21:07:05,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492048301] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:07:05,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:07:05,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 21:07:05,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78406940]
[2022-11-02 21:07:05,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:07:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 21:07:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:07:05,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 21:07:05,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 21:07:05,660 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.5) internal successors, (18), 13 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:05,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:07:05,677 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions.
[2022-11-02 21:07:05,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 21:07:05,679 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7
[2022-11-02 21:07:05,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:07:05,689 INFO L225 Difference]: With dead ends: 22
[2022-11-02 21:07:05,689 INFO L226 Difference]: Without dead ends: 10
[2022-11-02 21:07:05,693 INFO L412 NwaCegarLoop]: 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
[2022-11-02 21:07:05,697 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 21:07:05,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 21:07:05,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2022-11-02 21:07:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2022-11-02 21:07:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:05,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions.
[2022-11-02 21:07:05,736 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7
[2022-11-02 21:07:05,736 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:07:05,736 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions.
[2022-11-02 21:07:05,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:05,737 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions.
[2022-11-02 21:07:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 21:07:05,738 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:05,738 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:05,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 21:07:05,739 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:05,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:05,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1806977267, now seen corresponding path program 1 times
[2022-11-02 21:07:05,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:07:05,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335707841]
[2022-11-02 21:07:05,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:05,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:07:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:06,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:06,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:07:06,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335707841]
[2022-11-02 21:07:06,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335707841] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:07:06,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:07:06,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 21:07:06,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115727530]
[2022-11-02 21:07:06,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:07:06,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-02 21:07:06,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:07:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-02 21:07:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2022-11-02 21:07:06,134 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:06,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:07:06,267 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions.
[2022-11-02 21:07:06,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 21:07:06,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7
[2022-11-02 21:07:06,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:07:06,270 INFO L225 Difference]: With dead ends: 16
[2022-11-02 21:07:06,270 INFO L226 Difference]: Without dead ends: 12
[2022-11-02 21:07:06,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-11-02 21:07:06,272 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 21:07:06,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 21:07:06,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2022-11-02 21:07:06,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11.
[2022-11-02 21:07:06,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:06,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions.
[2022-11-02 21:07:06,277 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7
[2022-11-02 21:07:06,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:07:06,278 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions.
[2022-11-02 21:07:06,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions.
[2022-11-02 21:07:06,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-11-02 21:07:06,279 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:06,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:06,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-02 21:07:06,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:06,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:06,286 INFO L85 PathProgramCache]: Analyzing trace with hash 78673311, now seen corresponding path program 1 times
[2022-11-02 21:07:06,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:07:06,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917822405]
[2022-11-02 21:07:06,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:06,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:07:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:06,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:06,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:07:06,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917822405]
[2022-11-02 21:07:06,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917822405] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:07:06,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205413796]
[2022-11-02 21:07:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:06,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:07:06,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:07:06,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:07:06,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 21:07:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:06,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-02 21:07:06,740 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:07:07,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:07,076 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 21:07:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:07,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205413796] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 21:07:07,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 21:07:07,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16
[2022-11-02 21:07:07,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639472507]
[2022-11-02 21:07:07,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 21:07:07,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-11-02 21:07:07,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:07:07,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-11-02 21:07:07,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240
[2022-11-02 21:07:07,347 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 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)
[2022-11-02 21:07:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:07:07,829 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions.
[2022-11-02 21:07:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-11-02 21:07:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 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 10
[2022-11-02 21:07:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:07:07,831 INFO L225 Difference]: With dead ends: 26
[2022-11-02 21:07:07,831 INFO L226 Difference]: Without dead ends: 20
[2022-11-02 21:07:07,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506
[2022-11-02 21:07:07,834 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 21:07:07,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 28 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 21:07:07,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2022-11-02 21:07:07,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17.
[2022-11-02 21:07:07,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.25) internal successors, (20), 16 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)
[2022-11-02 21:07:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions.
[2022-11-02 21:07:07,841 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10
[2022-11-02 21:07:07,841 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:07:07,841 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions.
[2022-11-02 21:07:07,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.375) internal successors, (22), 16 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)
[2022-11-02 21:07:07,860 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions.
[2022-11-02 21:07:07,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-11-02 21:07:07,861 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:07:07,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:07:07,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-11-02 21:07:08,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2022-11-02 21:07:08,063 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:07:08,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:07:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 923522933, now seen corresponding path program 1 times
[2022-11-02 21:07:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:07:08,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045157190]
[2022-11-02 21:07:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:07:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:08,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:08,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:07:08,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045157190]
[2022-11-02 21:07:08,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045157190] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:07:08,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962033110]
[2022-11-02 21:07:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:07:08,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:07:08,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:07:08,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:07:08,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 21:07:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:07:08,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 22 conjunts are in the unsatisfiable core
[2022-11-02 21:07:08,488 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:07:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:07:08,774 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 21:07:09,024 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 21:07:09,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962033110] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 21:07:09,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 21:07:09,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 21
[2022-11-02 21:07:09,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718786442]
[2022-11-02 21:07:09,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 21:07:09,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-11-02 21:07:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:07:09,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-11-02 21:07:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420
[2022-11-02 21:07:09,034 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:09,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:07:09,557 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions.
[2022-11-02 21:07:09,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-02 21:07:09,558 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 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 13
[2022-11-02 21:07:09,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:07:09,558 INFO L225 Difference]: With dead ends: 25
[2022-11-02 21:07:09,558 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 21:07:09,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=214, Invalid=976, Unknown=0, NotChecked=0, Total=1190
[2022-11-02 21:07:09,560 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 17 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 21:07:09,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 21:07:09,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 21:07:09,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 21:07:09,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 21:07:09,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13
[2022-11-02 21:07:09,562 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:07:09,562 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 21:07:09,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:07:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 21:07:09,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 21:07:09,565 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 21:07:09,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 21:07:09,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:07:09,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 21:07:09,871 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 21:07:09,871 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 35) no Hoare annotation was computed.
[2022-11-02 21:07:09,872 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed.
[2022-11-02 21:07:09,872 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 35) no Hoare annotation was computed.
[2022-11-02 21:07:09,872 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed.
[2022-11-02 21:07:09,872 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 21:07:09,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 21:07:09,872 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 21:07:09,875 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse1 (* 3 |ULTIMATE.start_main_~i~0#1|))) (and (< .cse0 (+ (* 3 |ULTIMATE.start_main_~n~0#1|) 1)) (<= .cse1 .cse0) (<= .cse0 .cse1)))
[2022-11-02 21:07:09,876 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 37) no Hoare annotation was computed.
[2022-11-02 21:07:09,877 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed.
[2022-11-02 21:07:09,880 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed.
[2022-11-02 21:07:09,880 INFO L902 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true
[2022-11-02 21:07:09,881 INFO L902 garLoopResultBuilder]: At program point L39(lines 24 40) the Hoare annotation is: true
[2022-11-02 21:07:09,884 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-11-02 21:07:09,886 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:07:09,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:07:09 BoogieIcfgContainer
[2022-11-02 21:07:09,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:07:09,902 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:07:09,902 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:07:09,910 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 21:07:09,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:07:05" (3/4) ...
[2022-11-02 21:07:09,914 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 21:07:09,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges
[2022-11-02 21:07:09,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2022-11-02 21:07:09,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 21:07:09,924 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 21:07:09,962 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 21:07:09,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:07:09,964 INFO L158 Benchmark]: Toolchain (without parser) took 5404.79ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 79.2MB in the beginning and 95.9MB in the end (delta: -16.8MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB.
[2022-11-02 21:07:09,964 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:07:09,965 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.35ms. Allocated memory is still 121.6MB. Free memory was 79.0MB in the beginning and 96.4MB in the end (delta: -17.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 21:07:09,966 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.40ms. Allocated memory is still 121.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:07:09,966 INFO L158 Benchmark]: Boogie Preprocessor took 33.71ms. Allocated memory is still 121.6MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:07:09,967 INFO L158 Benchmark]: RCFGBuilder took 330.20ms. Allocated memory is still 121.6MB. Free memory was 93.8MB in the beginning and 84.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 21:07:09,967 INFO L158 Benchmark]: TraceAbstraction took 4555.35ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 83.8MB in the beginning and 99.0MB in the end (delta: -15.2MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB.
[2022-11-02 21:07:09,967 INFO L158 Benchmark]: Witness Printer took 60.57ms. Allocated memory is still 172.0MB. Free memory was 98.0MB in the beginning and 95.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:07:09,970 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 374.35ms. Allocated memory is still 121.6MB. Free memory was 79.0MB in the beginning and 96.4MB in the end (delta: -17.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 38.40ms. Allocated memory is still 121.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 33.71ms. Allocated memory is still 121.6MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 330.20ms. Allocated memory is still 121.6MB. Free memory was 93.8MB in the beginning and 84.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 4555.35ms. Allocated memory was 121.6MB in the beginning and 172.0MB in the end (delta: 50.3MB). Free memory was 83.8MB in the beginning and 99.0MB in the end (delta: -15.2MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB.
* Witness Printer took 60.57ms. Allocated memory is still 172.0MB. Free memory was 98.0MB in the beginning and 95.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 19]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 83 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 30 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 25 SyntacticMatches, 6 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, InterpolantAutomatonStates: 43, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 26 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 218 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 793 SizeOfPredicates, 12 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 1/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 17]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 28]: Loop Invariant
Derived loop invariant: (a + b < 3 * n + 1 && 3 * i <= a + b) && a + b <= 3 * i
- InvariantResult [Line: 24]: Loop Invariant
Derived loop invariant: 1
RESULT: Ultimate proved your program to be correct!
[2022-11-02 21:07:10,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_976581a8-cafb-455f-ad0d-666681ef20b4/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE