./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version a4ecdabc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5076d679b37839f733750e31fc3798a3b068ae0
...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.0-a4ecdab
[2020-11-30 01:11:33,404 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-11-30 01:11:33,433 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-30 01:11:33,488 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-30 01:11:33,488 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-30 01:11:33,490 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-30 01:11:33,505 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-30 01:11:33,508 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-30 01:11:33,510 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-30 01:11:33,511 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-30 01:11:33,513 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-11-30 01:11:33,514 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-30 01:11:33,515 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-30 01:11:33,516 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-30 01:11:33,518 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-30 01:11:33,519 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-30 01:11:33,520 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-30 01:11:33,521 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-30 01:11:33,524 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-30 01:11:33,526 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-30 01:11:33,528 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-30 01:11:33,532 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-30 01:11:33,534 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-11-30 01:11:33,535 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-30 01:11:33,539 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-30 01:11:33,543 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-30 01:11:33,544 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-30 01:11:33,545 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-30 01:11:33,547 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-30 01:11:33,552 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-30 01:11:33,553 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-30 01:11:33,554 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-30 01:11:33,556 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-11-30 01:11:33,557 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-11-30 01:11:33,558 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-30 01:11:33,559 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-30 01:11:33,560 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-30 01:11:33,560 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-30 01:11:33,560 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-30 01:11:33,561 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-30 01:11:33,562 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-11-30 01:11:33,564 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf
[2020-11-30 01:11:33,607 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-30 01:11:33,607 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-30 01:11:33,609 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2020-11-30 01:11:33,609 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ALWAYS
[2020-11-30 01:11:33,610 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-30 01:11:33,610 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-11-30 01:11:33,610 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-30 01:11:33,611 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-11-30 01:11:33,611 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-30 01:11:33,611 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-11-30 01:11:33,612 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-30 01:11:33,612 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-11-30 01:11:33,613 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-30 01:11:33,613 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-11-30 01:11:33,613 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-11-30 01:11:33,613 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-30 01:11:33,614 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-30 01:11:33,614 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-11-30 01:11:33,614 INFO  L136        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2020-11-30 01:11:33,614 INFO  L138        SettingsManager]:  * Timeout in seconds=1000000
[2020-11-30 01:11:33,614 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-30 01:11:33,615 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-11-30 01:11:33,615 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2020-11-30 01:11:33,615 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-30 01:11:33,615 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-11-30 01:11:33,616 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-11-30 01:11:33,616 INFO  L138        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2020-11-30 01:11:33,616 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-11-30 01:11:33,616 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-30 01:11:33,617 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-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/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-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak
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 -> Kojak
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 -> b5076d679b37839f733750e31fc3798a3b068ae0
[2020-11-30 01:11:33,919 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-30 01:11:33,947 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-30 01:11:33,951 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-30 01:11:33,953 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-30 01:11:33,954 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-30 01:11:33,955 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c
[2020-11-30 01:11:34,034 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/data/4119bdddc/5785b13f0c314036ac2ddc90be321161/FLAGc24d3b155
[2020-11-30 01:11:34,572 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-30 01:11:34,572 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c
[2020-11-30 01:11:34,587 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/data/4119bdddc/5785b13f0c314036ac2ddc90be321161/FLAGc24d3b155
[2020-11-30 01:11:34,885 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/data/4119bdddc/5785b13f0c314036ac2ddc90be321161
[2020-11-30 01:11:34,888 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-30 01:11:34,890 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-11-30 01:11:34,891 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-30 01:11:34,892 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-30 01:11:34,895 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-30 01:11:34,896 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:11:34" (1/1) ...
[2020-11-30 01:11:34,897 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@214f4fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:34, skipping insertion in model container
[2020-11-30 01:11:34,898 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:11:34" (1/1) ...
[2020-11-30 01:11:34,905 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-30 01:11:34,943 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-30 01:11:35,260 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-30 01:11:35,271 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-30 01:11:35,344 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-30 01:11:35,375 INFO  L208         MainTranslator]: Completed translation
[2020-11-30 01:11:35,375 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35 WrapperNode
[2020-11-30 01:11:35,376 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-30 01:11:35,377 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-30 01:11:35,377 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-30 01:11:35,377 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-30 01:11:35,385 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,421 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,449 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-30 01:11:35,450 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-30 01:11:35,450 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-30 01:11:35,450 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-30 01:11:35,459 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,460 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,463 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,463 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,471 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,476 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,479 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
[2020-11-30 01:11:35,483 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-30 01:11:35,484 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-30 01:11:35,484 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-30 01:11:35,484 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-30 01:11:35,502 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:11:35" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2020-11-30 01:11:35,585 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-30 01:11:35,585 INFO  L130     BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2020-11-30 01:11:35,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2020-11-30 01:11:35,586 INFO  L130     BoogieDeclarations]: Found specification of procedure timeShift
[2020-11-30 01:11:35,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure timeShift
[2020-11-30 01:11:35,586 INFO  L130     BoogieDeclarations]: Found specification of procedure cleanup
[2020-11-30 01:11:35,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure cleanup
[2020-11-30 01:11:35,586 INFO  L130     BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2020-11-30 01:11:35,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2020-11-30 01:11:35,587 INFO  L130     BoogieDeclarations]: Found specification of procedure waterRise
[2020-11-30 01:11:35,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure waterRise
[2020-11-30 01:11:35,587 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-30 01:11:35,587 INFO  L130     BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2020-11-30 01:11:35,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2020-11-30 01:11:35,588 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-30 01:11:35,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-30 01:11:37,015 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-30 01:11:37,015 INFO  L298             CfgBuilder]: Removed 38 assume(true) statements.
[2020-11-30 01:11:37,017 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:11:37 BoogieIcfgContainer
[2020-11-30 01:11:37,017 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-30 01:11:37,019 INFO  L113        PluginConnector]: ------------------------CodeCheck----------------------------
[2020-11-30 01:11:37,019 INFO  L271        PluginConnector]: Initializing CodeCheck...
[2020-11-30 01:11:37,032 INFO  L275        PluginConnector]: CodeCheck initialized
[2020-11-30 01:11:37,032 INFO  L185        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:11:37" (1/1) ...
[2020-11-30 01:11:37,045 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-30 01:11:37,087 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:37,101 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 47 states and 62 transitions.
[2020-11-30 01:11:37,101 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions.
[2020-11-30 01:11:37,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-11-30 01:11:37,107 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:37,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:37,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:37,375 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:37,377 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 47 states and 60 transitions.
[2020-11-30 01:11:37,378 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 60 transitions.
[2020-11-30 01:11:37,380 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-11-30 01:11:37,380 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:37,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:37,538 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:37,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:37,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 49 states and 63 transitions.
[2020-11-30 01:11:37,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions.
[2020-11-30 01:11:37,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-11-30 01:11:37,576 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:37,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:37,684 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:38,021 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:38,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 58 states and 81 transitions.
[2020-11-30 01:11:38,022 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 81 transitions.
[2020-11-30 01:11:38,024 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-11-30 01:11:38,024 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:38,054 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:38,088 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:38,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:38,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 59 states and 82 transitions.
[2020-11-30 01:11:38,107 INFO  L276                IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions.
[2020-11-30 01:11:38,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-11-30 01:11:38,111 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:38,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:38,273 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:38,814 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:38,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 70 states and 107 transitions.
[2020-11-30 01:11:38,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 107 transitions.
[2020-11-30 01:11:38,819 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-11-30 01:11:38,819 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:38,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:38,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:39,406 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:39,408 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 78 states and 125 transitions.
[2020-11-30 01:11:39,411 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 125 transitions.
[2020-11-30 01:11:39,413 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-11-30 01:11:39,415 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:39,460 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:39,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:40,430 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:40,433 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 96 states and 174 transitions.
[2020-11-30 01:11:40,433 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 174 transitions.
[2020-11-30 01:11:40,436 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-11-30 01:11:40,439 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:40,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:40,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:42,620 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:42,623 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 112 states and 219 transitions.
[2020-11-30 01:11:42,623 INFO  L276                IsEmpty]: Start isEmpty. Operand 112 states and 219 transitions.
[2020-11-30 01:11:42,625 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2020-11-30 01:11:42,625 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:42,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:42,667 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:42,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:42,899 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 115 states and 228 transitions.
[2020-11-30 01:11:42,899 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 228 transitions.
[2020-11-30 01:11:42,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-11-30 01:11:42,906 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:42,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:42,972 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:43,177 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:43,180 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 116 states and 229 transitions.
[2020-11-30 01:11:43,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 116 states and 229 transitions.
[2020-11-30 01:11:43,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-11-30 01:11:43,186 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:43,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:43,345 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:44,994 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:44,996 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 124 states and 239 transitions.
[2020-11-30 01:11:44,996 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 239 transitions.
[2020-11-30 01:11:44,998 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-11-30 01:11:44,998 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:45,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:45,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:45,316 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:45,318 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 125 states and 242 transitions.
[2020-11-30 01:11:45,320 INFO  L276                IsEmpty]: Start isEmpty. Operand 125 states and 242 transitions.
[2020-11-30 01:11:45,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-11-30 01:11:45,322 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:45,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:45,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:45,730 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:45,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 127 states and 244 transitions.
[2020-11-30 01:11:45,732 INFO  L276                IsEmpty]: Start isEmpty. Operand 127 states and 244 transitions.
[2020-11-30 01:11:45,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-11-30 01:11:45,733 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:45,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:45,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:45,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:45,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 128 states and 247 transitions.
[2020-11-30 01:11:45,999 INFO  L276                IsEmpty]: Start isEmpty. Operand 128 states and 247 transitions.
[2020-11-30 01:11:46,001 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2020-11-30 01:11:46,004 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:46,031 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:46,064 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:46,340 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:46,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 130 states and 250 transitions.
[2020-11-30 01:11:46,342 INFO  L276                IsEmpty]: Start isEmpty. Operand 130 states and 250 transitions.
[2020-11-30 01:11:46,343 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-11-30 01:11:46,343 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:46,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:46,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 01:11:46,784 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:46,785 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 132 states and 252 transitions.
[2020-11-30 01:11:46,785 INFO  L276                IsEmpty]: Start isEmpty. Operand 132 states and 252 transitions.
[2020-11-30 01:11:46,787 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-11-30 01:11:46,787 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:46,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:46,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-11-30 01:11:47,609 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:47,610 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 138 states and 267 transitions.
[2020-11-30 01:11:47,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 138 states and 267 transitions.
[2020-11-30 01:11:47,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-11-30 01:11:47,612 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:47,625 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:48,256 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-11-30 01:11:50,566 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:50,568 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 147 states and 310 transitions.
[2020-11-30 01:11:50,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 310 transitions.
[2020-11-30 01:11:50,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-11-30 01:11:50,570 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:50,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:50,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-11-30 01:11:52,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:52,291 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 153 states and 322 transitions.
[2020-11-30 01:11:52,291 INFO  L276                IsEmpty]: Start isEmpty. Operand 153 states and 322 transitions.
[2020-11-30 01:11:52,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-11-30 01:11:52,292 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:52,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:52,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-11-30 01:11:52,521 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:52,522 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 157 states and 332 transitions.
[2020-11-30 01:11:52,522 INFO  L276                IsEmpty]: Start isEmpty. Operand 157 states and 332 transitions.
[2020-11-30 01:11:52,524 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-11-30 01:11:52,524 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:52,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:52,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-11-30 01:11:53,783 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:53,784 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 161 states and 342 transitions.
[2020-11-30 01:11:53,784 INFO  L276                IsEmpty]: Start isEmpty. Operand 161 states and 342 transitions.
[2020-11-30 01:11:53,796 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-11-30 01:11:53,797 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:53,813 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:54,089 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:11:55,444 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:55,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 166 states and 351 transitions.
[2020-11-30 01:11:55,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 166 states and 351 transitions.
[2020-11-30 01:11:55,448 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-11-30 01:11:55,448 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:55,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:55,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-11-30 01:11:55,836 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:55,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 169 states and 357 transitions.
[2020-11-30 01:11:55,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 169 states and 357 transitions.
[2020-11-30 01:11:55,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-11-30 01:11:55,843 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:55,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:55,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:11:58,103 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:58,105 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 178 states and 399 transitions.
[2020-11-30 01:11:58,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 178 states and 399 transitions.
[2020-11-30 01:11:58,107 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2020-11-30 01:11:58,107 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:58,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:58,137 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-11-30 01:11:58,721 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:11:58,723 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 183 states and 413 transitions.
[2020-11-30 01:11:58,724 INFO  L276                IsEmpty]: Start isEmpty. Operand 183 states and 413 transitions.
[2020-11-30 01:11:58,726 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-11-30 01:11:58,726 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:11:58,744 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:11:58,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-11-30 01:12:00,546 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:00,548 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 194 states and 446 transitions.
[2020-11-30 01:12:00,548 INFO  L276                IsEmpty]: Start isEmpty. Operand 194 states and 446 transitions.
[2020-11-30 01:12:00,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-11-30 01:12:00,551 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:00,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:00,580 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-11-30 01:12:01,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:01,476 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 196 states and 449 transitions.
[2020-11-30 01:12:01,477 INFO  L276                IsEmpty]: Start isEmpty. Operand 196 states and 449 transitions.
[2020-11-30 01:12:01,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-11-30 01:12:01,479 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:01,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:01,509 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2020-11-30 01:12:02,073 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:02,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 199 states and 457 transitions.
[2020-11-30 01:12:02,075 INFO  L276                IsEmpty]: Start isEmpty. Operand 199 states and 457 transitions.
[2020-11-30 01:12:02,078 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-30 01:12:02,078 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:02,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:02,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-11-30 01:12:02,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:02,527 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 201 states and 463 transitions.
[2020-11-30 01:12:02,527 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 463 transitions.
[2020-11-30 01:12:02,529 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-11-30 01:12:02,529 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:02,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:02,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:03,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:03,576 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 208 states and 495 transitions.
[2020-11-30 01:12:03,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 208 states and 495 transitions.
[2020-11-30 01:12:03,578 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-11-30 01:12:03,578 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:03,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:03,605 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:04,186 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:04,188 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 213 states and 512 transitions.
[2020-11-30 01:12:04,188 INFO  L276                IsEmpty]: Start isEmpty. Operand 213 states and 512 transitions.
[2020-11-30 01:12:04,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-11-30 01:12:04,190 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:04,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:04,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:05,458 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:05,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 216 states and 522 transitions.
[2020-11-30 01:12:05,460 INFO  L276                IsEmpty]: Start isEmpty. Operand 216 states and 522 transitions.
[2020-11-30 01:12:05,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-11-30 01:12:05,462 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:05,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:06,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:11,303 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:11,305 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 228 states and 547 transitions.
[2020-11-30 01:12:11,305 INFO  L276                IsEmpty]: Start isEmpty. Operand 228 states and 547 transitions.
[2020-11-30 01:12:11,308 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-11-30 01:12:11,308 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:11,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:11,349 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:11,946 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:11,948 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 232 states and 562 transitions.
[2020-11-30 01:12:11,948 INFO  L276                IsEmpty]: Start isEmpty. Operand 232 states and 562 transitions.
[2020-11-30 01:12:11,951 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-30 01:12:11,951 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:11,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:11,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:13,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:13,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 236 states and 581 transitions.
[2020-11-30 01:12:13,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 236 states and 581 transitions.
[2020-11-30 01:12:13,357 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-11-30 01:12:13,357 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:13,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:13,385 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:14,458 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:14,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 242 states and 628 transitions.
[2020-11-30 01:12:14,460 INFO  L276                IsEmpty]: Start isEmpty. Operand 242 states and 628 transitions.
[2020-11-30 01:12:14,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2020-11-30 01:12:14,463 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:14,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:14,492 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:14,822 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:14,824 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 245 states and 631 transitions.
[2020-11-30 01:12:14,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 245 states and 631 transitions.
[2020-11-30 01:12:14,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-30 01:12:14,827 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:14,839 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:15,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:19,779 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:19,782 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 253 states and 650 transitions.
[2020-11-30 01:12:19,782 INFO  L276                IsEmpty]: Start isEmpty. Operand 253 states and 650 transitions.
[2020-11-30 01:12:19,784 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-30 01:12:19,784 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:19,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:19,812 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:21,664 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:21,667 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 265 states and 707 transitions.
[2020-11-30 01:12:21,667 INFO  L276                IsEmpty]: Start isEmpty. Operand 265 states and 707 transitions.
[2020-11-30 01:12:21,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-11-30 01:12:21,670 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:21,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:21,698 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2020-11-30 01:12:22,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:22,808 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 268 states and 733 transitions.
[2020-11-30 01:12:22,808 INFO  L276                IsEmpty]: Start isEmpty. Operand 268 states and 733 transitions.
[2020-11-30 01:12:22,811 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2020-11-30 01:12:22,811 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:22,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:22,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2020-11-30 01:12:25,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:25,810 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 275 states and 744 transitions.
[2020-11-30 01:12:25,810 INFO  L276                IsEmpty]: Start isEmpty. Operand 275 states and 744 transitions.
[2020-11-30 01:12:25,812 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-30 01:12:25,813 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:25,826 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:25,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2020-11-30 01:12:25,873 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:25,876 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 276 states and 745 transitions.
[2020-11-30 01:12:25,876 INFO  L276                IsEmpty]: Start isEmpty. Operand 276 states and 745 transitions.
[2020-11-30 01:12:25,878 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-11-30 01:12:25,878 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:25,891 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:25,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-11-30 01:12:26,547 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:26,550 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 278 states and 747 transitions.
[2020-11-30 01:12:26,550 INFO  L276                IsEmpty]: Start isEmpty. Operand 278 states and 747 transitions.
[2020-11-30 01:12:26,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-11-30 01:12:26,553 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:26,566 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:26,860 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:28,200 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:28,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 283 states and 758 transitions.
[2020-11-30 01:12:28,202 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 758 transitions.
[2020-11-30 01:12:28,205 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-11-30 01:12:28,205 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:28,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:28,251 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:28,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:28,304 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 283 states and 758 transitions.
[2020-11-30 01:12:28,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 758 transitions.
[2020-11-30 01:12:28,307 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-11-30 01:12:28,307 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:28,324 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:28,352 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:28,387 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:28,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 283 states and 758 transitions.
[2020-11-30 01:12:28,391 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 758 transitions.
[2020-11-30 01:12:28,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2020-11-30 01:12:28,394 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:28,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:28,439 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:28,477 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:28,480 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 283 states and 758 transitions.
[2020-11-30 01:12:28,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 283 states and 758 transitions.
[2020-11-30 01:12:28,483 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2020-11-30 01:12:28,483 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:28,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:28,908 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2020-11-30 01:12:30,603 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:30,604 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 287 states and 773 transitions.
[2020-11-30 01:12:30,605 INFO  L276                IsEmpty]: Start isEmpty. Operand 287 states and 773 transitions.
[2020-11-30 01:12:30,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-11-30 01:12:30,607 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:30,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 01:12:30,633 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-11-30 01:12:31,167 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 01:12:31,168 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 288 states and 761 transitions.
[2020-11-30 01:12:31,168 INFO  L276                IsEmpty]: Start isEmpty. Operand 288 states and 761 transitions.
[2020-11-30 01:12:31,170 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2020-11-30 01:12:31,170 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 01:12:31,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-30 01:12:31,228 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-30 01:12:31,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-30 01:12:31,293 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-30 01:12:31,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-30 01:12:31,557 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-30 01:12:31,644 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-30 01:12:31,644 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-30 01:12:31,790 WARN  L483      CodeCheckObserver]: This program is UNSAFE, Check terminated with 50 iterations.
[2020-11-30 01:12:32,002 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:12:32 ImpRootNode
[2020-11-30 01:12:32,006 INFO  L132        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2020-11-30 01:12:32,006 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2020-11-30 01:12:32,006 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2020-11-30 01:12:32,007 INFO  L275        PluginConnector]: Witness Printer initialized
[2020-11-30 01:12:32,007 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:11:37" (3/4) ...
[2020-11-30 01:12:32,013 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2020-11-30 01:12:32,145 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ac6f134-2cd9-452b-96b8-4fff9a80a184/bin/ukojak/witness.graphml
[2020-11-30 01:12:32,146 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-11-30 01:12:32,147 INFO  L168              Benchmark]: Toolchain (without parser) took 57257.11 ms. Allocated memory was 107.0 MB in the beginning and 885.0 MB in the end (delta: 778.0 MB). Free memory was 75.4 MB in the beginning and 541.6 MB in the end (delta: -466.1 MB). Peak memory consumption was 312.5 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,148 INFO  L168              Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,148 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 484.79 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 75.2 MB in the end (delta: 7.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,149 INFO  L168              Benchmark]: Boogie Procedure Inliner took 72.16 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 72.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,149 INFO  L168              Benchmark]: Boogie Preprocessor took 33.25 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,149 INFO  L168              Benchmark]: RCFGBuilder took 1533.88 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 71.3 MB in the end (delta: -512.5 kB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,150 INFO  L168              Benchmark]: CodeCheck took 54987.34 ms. Allocated memory was 107.0 MB in the beginning and 885.0 MB in the end (delta: 778.0 MB). Free memory was 71.3 MB in the beginning and 561.5 MB in the end (delta: -490.2 MB). Peak memory consumption was 287.0 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,150 INFO  L168              Benchmark]: Witness Printer took 139.54 ms. Allocated memory is still 885.0 MB. Free memory was 561.5 MB in the beginning and 541.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB.
[2020-11-30 01:12:32,153 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck:
  - StatisticsResult: Ultimate CodeCheck benchmark data
    CFG has 7 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 54.7s, OverallIterations: 50, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2053080848 SDtfs, -757024616 SDslu, -2079957104 SDs, 0 SdLazy, -1276097384 SolverSat, 1310591008 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 85.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26695 GetRequests, 26019 SyntacticMatches, 103 SemanticMatches, 573 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163796 ImplicationChecksByTransitivity, 46.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2011 NumberOfCodeBlocks, 2011 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1911 ConstructedInterpolants, 0 QuantifiedInterpolants, 203209 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 49 InterpolantComputations, 35 PerfectInterpolantSequences, 453/544 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available
  - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L87]               int waterLevel  =    1;
[L88]               int methaneLevelCritical  =    0;
[L181]              int cleanupTimeShifts  =    4;
[L294]              int pumpRunning  =    0;
[L295]              int systemActive  =    1;
[L681]              static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L878]              int methAndRunningLastTime  ;
[L259]              int retValue_acc ;
[L260]              int tmp ;
[L71]               int retValue_acc ;
[L74]               retValue_acc = 1
[L75]               return (retValue_acc);
[L266]              tmp = valid_product()
[L268]  COND TRUE   \read(tmp)
[L883]              methAndRunningLastTime = 0
[L448]              int splverifierCounter ;
[L449]              int tmp ;
[L450]              int tmp___0 ;
[L451]              int tmp___1 ;
[L452]              int tmp___2 ;
[L455]              splverifierCounter = 0
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L457]  COND TRUE   1
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L459]  COND TRUE   splverifierCounter < 4
[L465]              tmp = __VERIFIER_nondet_int()
[L467]  COND TRUE   \read(tmp)
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L469]  CALL        waterRise()
        VAL         [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L105]  COND TRUE   waterLevel < 2
[L106]              waterLevel = waterLevel + 1
[L469]  RET         waterRise()
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L475]              tmp___0 = __VERIFIER_nondet_int()
[L477]  COND TRUE   \read(tmp___0)
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L479]  CALL        changeMethaneLevel()
        VAL         [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L117]  COND FALSE  !(\read(methaneLevelCritical))
[L120]              methaneLevelCritical = 1
[L479]  RET         changeMethaneLevel()
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L485]              tmp___2 = __VERIFIER_nondet_int()
[L487]  COND TRUE   \read(tmp___2)
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L500]  CALL        timeShift()
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L302]  COND FALSE  !(\read(pumpRunning))
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L309]  COND TRUE   \read(systemActive)
[L331]              int tmp ;
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2]
[L334]  COND TRUE   ! pumpRunning
[L428]              int retValue_acc ;
[L429]              int tmp ;
[L430]              int tmp___0 ;
[L167]              int retValue_acc ;
[L170]  COND FALSE  !(waterLevel < 2)
[L174]              retValue_acc = 0
[L175]              return (retValue_acc);
[L434]              tmp = isHighWaterSensorDry()
[L436]  COND FALSE  !(\read(tmp))
[L439]              tmp___0 = 1
[L441]              retValue_acc = tmp___0
[L442]              return (retValue_acc);
[L336]              tmp = isHighWaterLevel()
[L338]  COND TRUE   \read(tmp)
[L359]              pumpRunning = 1
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L888]              int tmp ;
[L889]              int tmp___0 ;
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L893]  CALL, EXPR  isMethaneLevelCritical()
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L126]              int retValue_acc ;
[L129]              retValue_acc = methaneLevelCritical
[L130]              return (retValue_acc);
[L893]  RET, EXPR   isMethaneLevelCritical()
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L893]              tmp = isMethaneLevelCritical()
[L895]  COND TRUE   \read(tmp)
[L383]              int retValue_acc ;
[L386]              retValue_acc = pumpRunning
[L387]              return (retValue_acc);
[L897]              tmp___0 = isPumpRunning()
[L899]  COND TRUE   \read(tmp___0)
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L900]  COND FALSE  !(\read(methAndRunningLastTime))
[L905]              methAndRunningLastTime = 1
        VAL         [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L500]  RET         timeShift()
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L457]  COND TRUE   1
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L459]  COND TRUE   splverifierCounter < 4
[L465]              tmp = __VERIFIER_nondet_int()
[L467]  COND FALSE  !(\read(tmp))
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L475]              tmp___0 = __VERIFIER_nondet_int()
[L477]  COND FALSE  !(\read(tmp___0))
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L485]              tmp___2 = __VERIFIER_nondet_int()
[L487]  COND TRUE   \read(tmp___2)
        VAL         [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L500]  CALL        timeShift()
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2]
[L302]  COND TRUE   \read(pumpRunning)
[L93]   COND TRUE   waterLevel > 0
[L94]               waterLevel = waterLevel - 1
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L309]  COND TRUE   \read(systemActive)
[L331]              int tmp ;
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L334]  COND FALSE  !(! pumpRunning)
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L349]  FCALL       processEnvironment__wrappee__base()
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L888]              int tmp ;
[L889]              int tmp___0 ;
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L893]  CALL, EXPR  isMethaneLevelCritical()
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L126]              int retValue_acc ;
[L129]              retValue_acc = methaneLevelCritical
[L130]              return (retValue_acc);
[L893]  RET, EXPR   isMethaneLevelCritical()
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L893]              tmp = isMethaneLevelCritical()
[L895]  COND TRUE   \read(tmp)
[L383]              int retValue_acc ;
[L386]              retValue_acc = pumpRunning
[L387]              return (retValue_acc);
[L897]              tmp___0 = isPumpRunning()
[L899]  COND TRUE   \read(tmp___0)
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L900]  COND TRUE   \read(methAndRunningLastTime)
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]
[L3]                __assert_fail("0", "minepump_spec2_product33.cil.c", 3, "reach_error")
        VAL         [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1]

 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 484.79 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 75.2 MB in the end (delta: 7.7 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 72.16 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 72.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 33.25 ms. Allocated memory is still 107.0 MB. Free memory was 72.9 MB in the beginning and 70.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1533.88 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 71.3 MB in the end (delta: -512.5 kB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB.
 * CodeCheck took 54987.34 ms. Allocated memory was 107.0 MB in the beginning and 885.0 MB in the end (delta: 778.0 MB). Free memory was 71.3 MB in the beginning and 561.5 MB in the end (delta: -490.2 MB). Peak memory consumption was 287.0 MB. Max. memory is 16.1 GB.
 * Witness Printer took 139.54 ms. Allocated memory is still 885.0 MB. Free memory was 561.5 MB in the beginning and 541.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...