./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/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_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/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_4d345319-3f47-44ad-94d5-30da6c0dbd3d/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 9f50ec725f2d0539a1605de94af398ab61749c1d8954e8100cb71d8e6cff2c9e
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:17:03,288 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:17:03,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:17:03,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:17:03,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:17:03,339 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:17:03,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:17:03,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:17:03,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:17:03,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:17:03,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:17:03,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:17:03,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:17:03,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:17:03,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:17:03,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:17:03,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:17:03,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:17:03,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:17:03,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:17:03,371 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:17:03,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:17:03,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:17:03,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:17:03,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:17:03,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:17:03,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:17:03,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:17:03,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:17:03,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:17:03,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:17:03,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:17:03,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:17:03,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:17:03,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:17:03,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:17:03,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:17:03,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:17:03,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:17:03,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:17:03,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:17:03,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 20:17:03,474 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:17:03,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:17:03,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:17:03,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:17:03,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:17:03,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:17:03,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:17:03,479 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:17:03,479 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:17:03,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:17:03,481 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:17:03,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:17:03,481 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:17:03,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:17:03,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 20:17:03,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:17:03,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 20:17:03,483 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:17:03,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 20:17:03,484 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:17:03,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 20:17:03,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:17:03,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:17:03,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:17:03,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:17:03,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:17:03,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:17:03,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 20:17:03,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:17:03,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:17:03,487 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 20:17:03,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 20:17:03,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 20:17:03,488 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_4d345319-3f47-44ad-94d5-30da6c0dbd3d/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f50ec725f2d0539a1605de94af398ab61749c1d8954e8100cb71d8e6cff2c9e
[2022-11-02 20:17:03,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:17:03,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:17:03,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:17:03,943 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:17:03,944 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:17:03,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c
[2022-11-02 20:17:04,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/data/51a9c6054/80485053af094cfbb9c179c79b56cbad/FLAGe696abc0b
[2022-11-02 20:17:04,650 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:17:04,651 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c
[2022-11-02 20:17:04,660 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/data/51a9c6054/80485053af094cfbb9c179c79b56cbad/FLAGe696abc0b
[2022-11-02 20:17:05,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/data/51a9c6054/80485053af094cfbb9c179c79b56cbad
[2022-11-02 20:17:05,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:17:05,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:17:05,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:17:05,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:17:05,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:17:05,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69284a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05, skipping insertion in model container
[2022-11-02 20:17:05,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:17:05,069 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:17:05,298 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_4d345319-3f47-44ad-94d5-30da6c0dbd3d/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c[525,538]
[2022-11-02 20:17:05,313 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:17:05,324 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:17:05,339 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_4d345319-3f47-44ad-94d5-30da6c0dbd3d/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound100.c[525,538]
[2022-11-02 20:17:05,345 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:17:05,364 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:17:05,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05 WrapperNode
[2022-11-02 20:17:05,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:17:05,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:17:05,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:17:05,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:17:05,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,413 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42
[2022-11-02 20:17:05,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:17:05,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:17:05,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:17:05,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:17:05,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:17:05,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:17:05,454 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:17:05,455 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:17:05,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (1/1) ...
[2022-11-02 20:17:05,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:17:05,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:17:05,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:17:05,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:17:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:17:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 20:17:05,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:17:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:17:05,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 20:17:05,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 20:17:05,650 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:17:05,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:17:05,814 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:17:05,824 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:17:05,824 INFO L300 CfgBuilder]: Removed 1 assume(true) statements.
[2022-11-02 20:17:05,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:05 BoogieIcfgContainer
[2022-11-02 20:17:05,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:17:05,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:17:05,829 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:17:05,834 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:17:05,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:17:05" (1/3) ...
[2022-11-02 20:17:05,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41cbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:05, skipping insertion in model container
[2022-11-02 20:17:05,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:17:05" (2/3) ...
[2022-11-02 20:17:05,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a41cbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:17:05, skipping insertion in model container
[2022-11-02 20:17:05,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:05" (3/3) ...
[2022-11-02 20:17:05,837 INFO L112 eAbstractionObserver]: Analyzing ICFG geo2-ll_unwindbound100.c
[2022-11-02 20:17:05,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:17:05,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 20:17:05,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:17:05,933 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;@348d9067, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:17:05,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 20:17:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:17:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-02 20:17:05,948 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:17:05,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:17:05,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:17:05,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:17:05,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1819757606, now seen corresponding path program 1 times
[2022-11-02 20:17:05,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:17:05,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616583756]
[2022-11-02 20:17:05,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:05,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:17:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:17:06,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:17:06,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616583756]
[2022-11-02 20:17:06,164 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2022-11-02 20:17:06,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576561838]
[2022-11-02 20:17:06,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:06,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:06,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:17:06,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:17:06,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 20:17:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:17:06,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-02 20:17:06,270 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:17:06,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:06,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:17:06,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576561838] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:17:06,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:17:06,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-02 20:17:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132040164]
[2022-11-02 20:17:06,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:17:06,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-02 20:17:06,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:17:06,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-02 20:17:06,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-02 20:17:06,342 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:17:06,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:17:06,362 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions.
[2022-11-02 20:17:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-02 20:17:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 20:17:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:17:06,373 INFO L225 Difference]: With dead ends: 32
[2022-11-02 20:17:06,374 INFO L226 Difference]: Without dead ends: 13
[2022-11-02 20:17:06,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 20:17:06,381 INFO L413 NwaCegarLoop]: 19 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, 19 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 20:17:06,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:17:06,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2022-11-02 20:17:06,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2022-11-02 20:17:06,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:17:06,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions.
[2022-11-02 20:17:06,429 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7
[2022-11-02 20:17:06,430 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:17:06,430 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions.
[2022-11-02 20:17:06,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:17:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions.
[2022-11-02 20:17:06,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-11-02 20:17:06,431 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:17:06,432 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:17:06,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:17:06,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:06,656 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:17:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:17:06,657 INFO L85 PathProgramCache]: Analyzing trace with hash 178410715, now seen corresponding path program 1 times
[2022-11-02 20:17:06,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:17:06,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361154323]
[2022-11-02 20:17:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:06,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:17:06,697 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:17:06,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35539530]
[2022-11-02 20:17:06,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:06,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:06,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:17:06,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:17:06,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 20:17:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:17:06,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-02 20:17:06,815 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:17:06,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:06,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:17:06,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:17:06,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361154323]
[2022-11-02 20:17:06,900 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:17:06,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35539530]
[2022-11-02 20:17:06,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35539530] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:17:06,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:17:06,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:17:06,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204844792]
[2022-11-02 20:17:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:17:06,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:17:06,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:17:06,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:17:06,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:17:06,911 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:17:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:17:06,947 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2022-11-02 20:17:06,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:17:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2022-11-02 20:17:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:17:06,951 INFO L225 Difference]: With dead ends: 22
[2022-11-02 20:17:06,951 INFO L226 Difference]: Without dead ends: 15
[2022-11-02 20:17:06,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:17:06,953 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:17:06,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:17:06,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2022-11-02 20:17:06,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2022-11-02 20:17:06,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:17:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2022-11-02 20:17:06,961 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8
[2022-11-02 20:17:06,961 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:17:06,962 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2022-11-02 20:17:06,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:17:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2022-11-02 20:17:06,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-11-02 20:17:06,965 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:17:06,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:17:07,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:17:07,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:07,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:17:07,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:17:07,183 INFO L85 PathProgramCache]: Analyzing trace with hash 180198175, now seen corresponding path program 1 times
[2022-11-02 20:17:07,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:17:07,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866218239]
[2022-11-02 20:17:07,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:07,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:17:07,204 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:17:07,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097575016]
[2022-11-02 20:17:07,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:07,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:07,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:17:07,217 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:17:07,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-02 20:17:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:17:07,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-11-02 20:17:07,309 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:17:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:07,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:17:07,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:17:07,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866218239]
[2022-11-02 20:17:07,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:17:07,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097575016]
[2022-11-02 20:17:07,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097575016] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:17:07,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:17:07,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:17:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161225598]
[2022-11-02 20:17:07,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:17:07,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:17:07,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:17:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:17:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:17:07,376 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:17:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:17:07,438 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions.
[2022-11-02 20:17:07,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:17:07,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2022-11-02 20:17:07,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:17:07,440 INFO L225 Difference]: With dead ends: 24
[2022-11-02 20:17:07,441 INFO L226 Difference]: Without dead ends: 21
[2022-11-02 20:17:07,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:17:07,446 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 6 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:17:07,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 41 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:17:07,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2022-11-02 20:17:07,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2022-11-02 20:17:07,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:17:07,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2022-11-02 20:17:07,455 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 8
[2022-11-02 20:17:07,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:17:07,456 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2022-11-02 20:17:07,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 20:17:07,457 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2022-11-02 20:17:07,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:17:07,457 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:17:07,458 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:17:07,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:17:07,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:07,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:17:07,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:17:07,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1542398814, now seen corresponding path program 1 times
[2022-11-02 20:17:07,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:17:07,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383298206]
[2022-11-02 20:17:07,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:07,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:17:07,728 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:17:07,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116244839]
[2022-11-02 20:17:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:07,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:07,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:17:07,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:17:07,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-02 20:17:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:17:07,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-11-02 20:17:07,834 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:17:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:07,899 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:17:07,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:07,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:17:07,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383298206]
[2022-11-02 20:17:07,992 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:17:07,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116244839]
[2022-11-02 20:17:07,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116244839] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:17:07,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:17:07,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8
[2022-11-02 20:17:07,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241163173]
[2022-11-02 20:17:07,994 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:17:07,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:17:07,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:17:07,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:17:07,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:17:07,998 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:17:08,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:17:08,127 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions.
[2022-11-02 20:17:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:17:08,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2022-11-02 20:17:08,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:17:08,131 INFO L225 Difference]: With dead ends: 52
[2022-11-02 20:17:08,131 INFO L226 Difference]: Without dead ends: 45
[2022-11-02 20:17:08,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2022-11-02 20:17:08,144 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 32 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:17:08,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 66 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:17:08,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2022-11-02 20:17:08,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41.
[2022-11-02 20:17:08,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2022-11-02 20:17:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2022-11-02 20:17:08,153 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 16
[2022-11-02 20:17:08,154 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:17:08,158 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2022-11-02 20:17:08,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:17:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2022-11-02 20:17:08,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:17:08,166 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:17:08,167 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:17:08,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:17:08,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:08,394 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 20:17:08,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:17:08,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1540611354, now seen corresponding path program 1 times
[2022-11-02 20:17:08,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 20:17:08,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869050133]
[2022-11-02 20:17:08,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:08,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 20:17:08,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2022-11-02 20:17:08,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [842394827]
[2022-11-02 20:17:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:17:08,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:08,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:17:08,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 20:17:08,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-11-02 20:17:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:17:08,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core
[2022-11-02 20:17:08,505 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:17:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:08,672 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 20:17:08,966 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:17:08,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 20:17:08,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869050133]
[2022-11-02 20:17:08,967 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2022-11-02 20:17:08,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842394827]
[2022-11-02 20:17:08,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842394827] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 20:17:08,967 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-02 20:17:08,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7
[2022-11-02 20:17:08,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172975603]
[2022-11-02 20:17:08,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-02 20:17:08,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:17:08,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 20:17:08,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:17:08,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:17:08,970 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:17:09,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:17:09,096 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions.
[2022-11-02 20:17:09,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-02 20:17:09,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2022-11-02 20:17:09,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:17:09,097 INFO L225 Difference]: With dead ends: 41
[2022-11-02 20:17:09,097 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 20:17:09,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:17:09,099 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:17:09,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 42 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:17:09,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 20:17:09,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 20:17:09,100 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 20:17:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 20:17:09,101 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16
[2022-11-02 20:17:09,101 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:17:09,101 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 20:17:09,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:17:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 20:17:09,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 20:17:09,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 20:17:09,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:17:09,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 20:17:09,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 20:17:09,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 20:17:09,421 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed.
[2022-11-02 20:17:09,421 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 34 43) no Hoare annotation was computed.
[2022-11-02 20:17:09,421 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 20:17:09,422 INFO L895 garLoopResultBuilder]: At program point L34-3(lines 34 43) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))
[2022-11-02 20:17:09,422 INFO L895 garLoopResultBuilder]: At program point L34-4(lines 34 43) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))
[2022-11-02 20:17:09,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 20:17:09,422 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 20:17:09,423 INFO L902 garLoopResultBuilder]: At program point L45(lines 24 46) the Hoare annotation is: true
[2022-11-02 20:17:09,423 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (= (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~z~0#1|) |ULTIMATE.start_main_~x~0#1|) (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~z~0#1|) 1))
[2022-11-02 20:17:09,423 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 34 43) no Hoare annotation was computed.
[2022-11-02 20:17:09,423 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 17) no Hoare annotation was computed.
[2022-11-02 20:17:09,424 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 18) no Hoare annotation was computed.
[2022-11-02 20:17:09,424 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 20) the Hoare annotation is: true
[2022-11-02 20:17:09,424 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 20) no Hoare annotation was computed.
[2022-11-02 20:17:09,424 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed.
[2022-11-02 20:17:09,424 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed.
[2022-11-02 20:17:09,429 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2022-11-02 20:17:09,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:17:09,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:17:09 BoogieIcfgContainer
[2022-11-02 20:17:09,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:17:09,449 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:17:09,449 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:17:09,449 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:17:09,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:17:05" (3/4) ...
[2022-11-02 20:17:09,453 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 20:17:09,461 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2022-11-02 20:17:09,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2022-11-02 20:17:09,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2022-11-02 20:17:09,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 20:17:09,466 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 20:17:09,510 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:17:09,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:17:09,511 INFO L158 Benchmark]: Toolchain (without parser) took 4477.27ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 64.0MB in the beginning and 75.2MB in the end (delta: -11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,511 INFO L158 Benchmark]: CDTParser took 9.25ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 80.0MB in the end (delta: -9.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.20ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 74.9MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.72ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,513 INFO L158 Benchmark]: Boogie Preprocessor took 37.95ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:17:09,513 INFO L158 Benchmark]: RCFGBuilder took 372.68ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 62.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,514 INFO L158 Benchmark]: TraceAbstraction took 3618.93ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.0MB in the beginning and 77.3MB in the end (delta: -15.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,514 INFO L158 Benchmark]: Witness Printer took 61.55ms. Allocated memory is still 119.5MB. Free memory was 77.3MB in the beginning and 75.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:17:09,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 9.25ms. Allocated memory is still 98.6MB. Free memory was 70.7MB in the beginning and 80.0MB in the end (delta: -9.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 329.20ms. Allocated memory is still 98.6MB. Free memory was 63.8MB in the beginning and 74.9MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 46.72ms. Allocated memory is still 98.6MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 37.95ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 372.68ms. Allocated memory is still 98.6MB. Free memory was 72.5MB in the beginning and 62.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 3618.93ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 62.0MB in the beginning and 77.3MB in the end (delta: -15.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB.
* Witness Printer took 61.55ms. Allocated memory is still 119.5MB. Free memory was 77.3MB in the beginning and 75.2MB 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: 17]: 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 46 mSDsluCounter, 203 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 72 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 61 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=4, InterpolantAutomatonStates: 28, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 16 PreInvPairs, 30 NumberOfFragments, 35 HoareAnnotationTreeSize, 16 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 114 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 4 NumberOfNonLiveVariables, 293 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 8/18 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: 24]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: y * z + x == x * z + 1
RESULT: Ultimate proved your program to be correct!
[2022-11-02 20:17:09,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d345319-3f47-44ad-94d5-30da6c0dbd3d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE