./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/underapprox_1-1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/underapprox_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y --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 11d6d848444c2f9afc2eba3aace7d6b72c4d182e1953661ba8811794c092f478
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:28:51,298 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:28:51,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:28:51,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:28:51,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:28:51,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:28:51,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:28:51,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:28:51,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:28:51,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:28:51,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:28:51,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:28:51,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:28:51,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:28:51,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:28:51,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:28:51,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:28:51,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:28:51,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:28:51,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:28:51,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:28:51,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:28:51,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:28:51,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:28:51,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:28:51,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:28:51,378 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:28:51,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:28:51,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:28:51,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:28:51,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:28:51,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:28:51,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:28:51,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:28:51,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:28:51,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:28:51,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:28:51,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:28:51,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:28:51,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:28:51,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:28:51,394 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 18:28:51,436 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:28:51,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:28:51,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:28:51,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:28:51,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:28:51,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:28:51,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:28:51,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:28:51,447 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:28:51,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:28:51,448 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:28:51,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:28:51,449 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:28:51,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:28:51,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:28:51,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:28:51,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:28:51,450 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:28:51,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:28:51,450 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:28:51,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:28:51,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:28:51,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:28:51,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:28:51,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:28:51,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:28:51,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:28:51,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:28:51,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:28:51,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:28:51,458 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:28:51,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:28:51,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:28:51,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:28:51,459 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_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 11d6d848444c2f9afc2eba3aace7d6b72c4d182e1953661ba8811794c092f478
[2021-11-13 18:28:51,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:28:51,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:28:51,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:28:51,741 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:28:51,742 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:28:51,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/loop-acceleration/underapprox_1-1.c
[2021-11-13 18:28:51,834 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/data/333723b0f/9776e071600c40378b4e5d9b7d8a0a8c/FLAG844df21bc
[2021-11-13 18:28:52,378 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:28:52,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/sv-benchmarks/c/loop-acceleration/underapprox_1-1.c
[2021-11-13 18:28:52,389 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/data/333723b0f/9776e071600c40378b4e5d9b7d8a0a8c/FLAG844df21bc
[2021-11-13 18:28:52,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/data/333723b0f/9776e071600c40378b4e5d9b7d8a0a8c
[2021-11-13 18:28:52,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:28:52,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:28:52,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:28:52,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:28:52,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:28:52,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:28:52" (1/1) ...
[2021-11-13 18:28:52,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710701e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:52, skipping insertion in model container
[2021-11-13 18:28:52,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:28:52" (1/1) ...
[2021-11-13 18:28:52,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:28:52,787 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:28:52,969 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_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/sv-benchmarks/c/loop-acceleration/underapprox_1-1.c[327,340]
[2021-11-13 18:28:52,980 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:28:52,988 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:28:53,001 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_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/sv-benchmarks/c/loop-acceleration/underapprox_1-1.c[327,340]
[2021-11-13 18:28:53,004 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:28:53,017 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:28:53,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53 WrapperNode
[2021-11-13 18:28:53,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:28:53,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:28:53,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:28:53,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:28:53,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:28:53,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:28:53,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:28:53,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:28:53,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:28:53,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:28:53,074 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:28:53,075 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:28:53,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (1/1) ...
[2021-11-13 18:28:53,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:28:53,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:28:53,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:28:53,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:28:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:28:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:28:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 18:28:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:28:53,358 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:28:53,358 INFO L299 CfgBuilder]: Removed 1 assume(true) statements.
[2021-11-13 18:28:53,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:28:53 BoogieIcfgContainer
[2021-11-13 18:28:53,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:28:53,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:28:53,363 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:28:53,370 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:28:53,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:28:52" (1/3) ...
[2021-11-13 18:28:53,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb745e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:28:53, skipping insertion in model container
[2021-11-13 18:28:53,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:28:53" (2/3) ...
[2021-11-13 18:28:53,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb745e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:28:53, skipping insertion in model container
[2021-11-13 18:28:53,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:28:53" (3/3) ...
[2021-11-13 18:28:53,374 INFO L111 eAbstractionObserver]: Analyzing ICFG underapprox_1-1.c
[2021-11-13 18:28:53,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:28:53,381 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:28:53,430 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:28:53,438 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
[2021-11-13 18:28:53,438 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 18:28:53,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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)
[2021-11-13 18:28:53,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2021-11-13 18:28:53,458 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:28:53,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2021-11-13 18:28:53,459 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:28:53,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:28:53,465 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times
[2021-11-13 18:28:53,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:28:53,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608260103]
[2021-11-13 18:28:53,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:28:53,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:28:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:28:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:53,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:28:53,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608260103]
[2021-11-13 18:28:53,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608260103] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:28:53,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:28:53,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 18:28:53,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137401138]
[2021-11-13 18:28:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:28:53,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:28:53,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:28:53,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:28:53,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:28:53,694 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2021-11-13 18:28:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:28:53,713 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions.
[2021-11-13 18:28:53,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:28:53,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6
[2021-11-13 18:28:53,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:28:53,724 INFO L225 Difference]: With dead ends: 20
[2021-11-13 18:28:53,724 INFO L226 Difference]: Without dead ends: 8
[2021-11-13 18:28:53,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:28:53,731 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.41ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:28:53,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 4.41ms Time]
[2021-11-13 18:28:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2021-11-13 18:28:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2021-11-13 18:28:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2021-11-13 18:28:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2021-11-13 18:28:53,779 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6
[2021-11-13 18:28:53,793 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:28:53,794 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2021-11-13 18:28:53,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2021-11-13 18:28:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2021-11-13 18:28:53,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-11-13 18:28:53,795 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:28:53,795 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:28:53,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 18:28:53,796 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:28:53,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:28:53,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times
[2021-11-13 18:28:53,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:28:53,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934318713]
[2021-11-13 18:28:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:28:53,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:28:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:28:53,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:53,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:28:53,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934318713]
[2021-11-13 18:28:53,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934318713] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:28:53,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657933799]
[2021-11-13 18:28:53,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:28:53,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:28:53,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:28:53,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:28:53,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 18:28:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:28:54,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:28:54,042 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:28:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:54,175 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:28:54,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:54,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657933799] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:28:54,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:28:54,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 9
[2021-11-13 18:28:54,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939338553]
[2021-11-13 18:28:54,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:28:54,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-11-13 18:28:54,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:28:54,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-11-13 18:28:54,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2021-11-13 18:28:54,292 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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)
[2021-11-13 18:28:54,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:28:54,390 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2021-11-13 18:28:54,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 18:28:54,391 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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
[2021-11-13 18:28:54,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:28:54,392 INFO L225 Difference]: With dead ends: 19
[2021-11-13 18:28:54,392 INFO L226 Difference]: Without dead ends: 11
[2021-11-13 18:28:54,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182
[2021-11-13 18:28:54,399 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.63ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.93ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:28:54,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 31 Invalid, 28 Unknown, 0 Unchecked, 1.63ms Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 28.93ms Time]
[2021-11-13 18:28:54,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2021-11-13 18:28:54,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11.
[2021-11-13 18:28:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 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)
[2021-11-13 18:28:54,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions.
[2021-11-13 18:28:54,413 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7
[2021-11-13 18:28:54,413 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:28:54,413 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions.
[2021-11-13 18:28:54,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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)
[2021-11-13 18:28:54,415 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions.
[2021-11-13 18:28:54,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2021-11-13 18:28:54,416 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:28:54,416 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:28:54,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:28:54,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:28:54,623 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:28:54,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:28:54,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1922847381, now seen corresponding path program 2 times
[2021-11-13 18:28:54,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:28:54,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34568281]
[2021-11-13 18:28:54,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:28:54,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:28:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:28:54,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:54,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:28:54,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34568281]
[2021-11-13 18:28:54,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34568281] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:28:54,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556499568]
[2021-11-13 18:28:54,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2021-11-13 18:28:54,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:28:54,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:28:54,790 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:28:54,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2021-11-13 18:28:54,837 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-11-13 18:28:54,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-11-13 18:28:54,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 13 conjunts are in the unsatisfiable core
[2021-11-13 18:28:54,840 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:28:54,975 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:54,976 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:28:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:28:55,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556499568] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-13 18:28:55,190 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2021-11-13 18:28:55,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 18
[2021-11-13 18:28:55,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272418476]
[2021-11-13 18:28:55,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2021-11-13 18:28:55,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2021-11-13 18:28:55,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:28:55,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-11-13 18:28:55,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306
[2021-11-13 18:28:55,193 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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)
[2021-11-13 18:28:56,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:28:56,400 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions.
[2021-11-13 18:28:56,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-11-13 18:28:56,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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) Word has length 10
[2021-11-13 18:28:56,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:28:56,401 INFO L225 Difference]: With dead ends: 33
[2021-11-13 18:28:56,401 INFO L226 Difference]: Without dead ends: 21
[2021-11-13 18:28:56,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930
[2021-11-13 18:28:56,403 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 28 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 434.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.00ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 454.78ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:28:56,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 57 Invalid, 109 Unknown, 0 Unchecked, 3.00ms Time], IncrementalHoareTripleChecker [12 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 454.78ms Time]
[2021-11-13 18:28:56,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2021-11-13 18:28:56,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17.
[2021-11-13 18:28:56,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) 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)
[2021-11-13 18:28:56,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions.
[2021-11-13 18:28:56,410 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10
[2021-11-13 18:28:56,410 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:28:56,410 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions.
[2021-11-13 18:28:56,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 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)
[2021-11-13 18:28:56,410 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions.
[2021-11-13 18:28:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2021-11-13 18:28:56,411 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:28:56,411 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:28:56,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:28:56,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:28:56,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:28:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:28:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -967103989, now seen corresponding path program 3 times
[2021-11-13 18:28:56,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:28:56,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586360923]
[2021-11-13 18:28:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:28:56,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:28:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:28:56,657 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:28:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:28:56,725 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 18:28:56,725 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 18:28:56,726 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 18:28:56,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-13 18:28:56,734 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1]
[2021-11-13 18:28:56,738 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 18:28:56,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 06:28:56 BoogieIcfgContainer
[2021-11-13 18:28:56,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-13 18:28:56,785 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-13 18:28:56,785 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-11-13 18:28:56,786 INFO L275 PluginConnector]: Witness Printer initialized
[2021-11-13 18:28:56,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:28:53" (3/4) ...
[2021-11-13 18:28:56,788 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-11-13 18:28:56,845 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/witness.graphml
[2021-11-13 18:28:56,845 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-13 18:28:56,846 INFO L158 Benchmark]: Toolchain (without parser) took 4099.58ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 55.4MB in the beginning and 57.0MB in the end (delta: -1.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB.
[2021-11-13 18:28:56,846 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:28:56,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.19ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 55.2MB in the beginning and 79.8MB in the end (delta: -24.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 18:28:56,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.70ms. Allocated memory is still 102.8MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:28:56,848 INFO L158 Benchmark]: Boogie Preprocessor took 20.47ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 77.2MB in the end (delta: 870.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:28:56,848 INFO L158 Benchmark]: RCFGBuilder took 286.63ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 68.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-13 18:28:56,849 INFO L158 Benchmark]: TraceAbstraction took 3421.11ms. Allocated memory is still 102.8MB. Free memory was 67.6MB in the beginning and 59.1MB in the end (delta: 8.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB.
[2021-11-13 18:28:56,849 INFO L158 Benchmark]: Witness Printer took 60.27ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:28:56,851 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 83.9MB. Free memory is still 39.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 261.19ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 55.2MB in the beginning and 79.8MB in the end (delta: -24.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 33.70ms. Allocated memory is still 102.8MB. Free memory was 79.8MB in the beginning and 78.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 20.47ms. Allocated memory is still 102.8MB. Free memory was 78.1MB in the beginning and 77.2MB in the end (delta: 870.0kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 286.63ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 68.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 3421.11ms. Allocated memory is still 102.8MB. Free memory was 67.6MB in the beginning and 59.1MB in the end (delta: 8.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB.
* Witness Printer took 60.27ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 57.0MB 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
- CounterExampleResult [Line: 7]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L13] unsigned int x = 0;
[L14] unsigned int y = 1;
VAL [x=0, y=1]
[L16] COND TRUE x < 6
[L17] x++
[L18] y *= 2
VAL [x=1, y=2]
[L16] COND TRUE x < 6
[L17] x++
[L18] y *= 2
VAL [x=2, y=4]
[L16] COND TRUE x < 6
[L17] x++
[L18] y *= 2
VAL [x=3, y=8]
[L16] COND TRUE x < 6
[L17] x++
[L18] y *= 2
VAL [x=4, y=16]
[L16] COND TRUE x < 6
[L17] x++
[L18] y *= 2
VAL [x=5, y=32]
[L16] COND TRUE x < 6
[L17] x++
[L18] y *= 2
VAL [x=6, y=64]
[L16] COND FALSE !(x < 6)
VAL [x=6, y=64]
[L21] CALL __VERIFIER_assert(y != 64)
[L6] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0]
[L7] reach_error()
VAL [\old(cond)=0, cond=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 488.12ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 463.15ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 22 mSDtfsCounter, 124 mSolverCounterSat, 5.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, InterpolantAutomatonStates: 27, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 175 SizeOfPredicates, 4 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/33 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
RESULT: Ultimate proved your program to be incorrect!
[2021-11-13 18:28:56,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7b63d92-d0e5-4f40-b0a2-5af6ea369fa8/bin/uautomizer-YU5uOKAj3y/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
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE