./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.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_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/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 ae3408cd4ee618a2b4029fb36ac233f268b706d6
.................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 00:39:54,807 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-11-30 00:39:54,810 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-11-30 00:39:54,894 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-11-30 00:39:54,895 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-11-30 00:39:54,901 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-11-30 00:39:54,907 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-11-30 00:39:54,909 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-11-30 00:39:54,911 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-11-30 00:39:54,913 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-11-30 00:39:54,914 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-11-30 00:39:54,916 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-11-30 00:39:54,917 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-11-30 00:39:54,919 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-11-30 00:39:54,920 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-11-30 00:39:54,922 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-11-30 00:39:54,924 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-11-30 00:39:54,925 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-11-30 00:39:54,928 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-11-30 00:39:54,931 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-11-30 00:39:54,933 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-11-30 00:39:54,935 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-11-30 00:39:54,937 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-11-30 00:39:54,938 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-11-30 00:39:54,942 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-11-30 00:39:54,943 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-11-30 00:39:54,943 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-11-30 00:39:54,945 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-11-30 00:39:54,946 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-11-30 00:39:54,947 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-11-30 00:39:54,948 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-11-30 00:39:54,949 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-11-30 00:39:54,950 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-11-30 00:39:54,951 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-11-30 00:39:54,953 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-11-30 00:39:54,953 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-11-30 00:39:54,954 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-11-30 00:39:54,954 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-11-30 00:39:54,955 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-11-30 00:39:54,956 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-11-30 00:39:54,957 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-11-30 00:39:54,958 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf
[2020-11-30 00:39:54,984 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-11-30 00:39:54,985 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-11-30 00:39:54,986 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2020-11-30 00:39:54,986 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ALWAYS
[2020-11-30 00:39:54,987 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-11-30 00:39:54,987 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-11-30 00:39:54,988 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-11-30 00:39:54,988 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-11-30 00:39:54,988 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-11-30 00:39:54,989 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-11-30 00:39:54,989 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-11-30 00:39:54,989 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-11-30 00:39:54,989 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-11-30 00:39:54,990 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-11-30 00:39:54,990 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-11-30 00:39:54,990 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-11-30 00:39:54,990 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-11-30 00:39:54,991 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-11-30 00:39:54,991 INFO  L136        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2020-11-30 00:39:54,991 INFO  L138        SettingsManager]:  * Timeout in seconds=1000000
[2020-11-30 00:39:54,992 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-11-30 00:39:54,992 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-11-30 00:39:54,992 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2020-11-30 00:39:54,992 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-11-30 00:39:54,993 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-11-30 00:39:54,993 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-11-30 00:39:54,993 INFO  L138        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2020-11-30 00:39:54,994 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-11-30 00:39:54,994 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-11-30 00:39:54,994 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_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/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_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/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 -> ae3408cd4ee618a2b4029fb36ac233f268b706d6
[2020-11-30 00:39:55,260 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-11-30 00:39:55,289 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-11-30 00:39:55,292 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-11-30 00:39:55,293 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-11-30 00:39:55,294 INFO  L275        PluginConnector]: CDTParser initialized
[2020-11-30 00:39:55,295 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c
[2020-11-30 00:39:55,396 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/data/bd13027e2/a4644edb2e6c462b8b38de6b9f5b2e13/FLAGb577efcac
[2020-11-30 00:39:55,981 INFO  L306              CDTParser]: Found 1 translation units.
[2020-11-30 00:39:55,982 INFO  L160              CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound2.c
[2020-11-30 00:39:55,998 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/data/bd13027e2/a4644edb2e6c462b8b38de6b9f5b2e13/FLAGb577efcac
[2020-11-30 00:39:56,308 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/data/bd13027e2/a4644edb2e6c462b8b38de6b9f5b2e13
[2020-11-30 00:39:56,311 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-11-30 00:39:56,315 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-11-30 00:39:56,319 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-11-30 00:39:56,319 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-11-30 00:39:56,324 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-11-30 00:39:56,326 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,336 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@860cac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56, skipping insertion in model container
[2020-11-30 00:39:56,336 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,345 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-11-30 00:39:56,367 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-11-30 00:39:56,598 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-30 00:39:56,609 INFO  L203         MainTranslator]: Completed pre-run
[2020-11-30 00:39:56,635 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-11-30 00:39:56,651 INFO  L208         MainTranslator]: Completed translation
[2020-11-30 00:39:56,652 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56 WrapperNode
[2020-11-30 00:39:56,652 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-11-30 00:39:56,653 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-11-30 00:39:56,654 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-11-30 00:39:56,654 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-11-30 00:39:56,670 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,677 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,700 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-11-30 00:39:56,701 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-11-30 00:39:56,701 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-11-30 00:39:56,701 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-11-30 00:39:56,710 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,711 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,713 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,713 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,718 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,722 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,724 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
[2020-11-30 00:39:56,726 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-11-30 00:39:56,727 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-11-30 00:39:56,728 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-11-30 00:39:56,728 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-11-30 00:39:56,729 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:39:56" (1/1) ...
No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/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 00:39:56,807 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-11-30 00:39:56,807 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-11-30 00:39:56,808 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-11-30 00:39:56,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-11-30 00:39:56,808 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-11-30 00:39:56,808 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-11-30 00:39:57,132 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-11-30 00:39:57,133 INFO  L298             CfgBuilder]: Removed 7 assume(true) statements.
[2020-11-30 00:39:57,135 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:39:57 BoogieIcfgContainer
[2020-11-30 00:39:57,135 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-11-30 00:39:57,136 INFO  L113        PluginConnector]: ------------------------CodeCheck----------------------------
[2020-11-30 00:39:57,137 INFO  L271        PluginConnector]: Initializing CodeCheck...
[2020-11-30 00:39:57,162 INFO  L275        PluginConnector]: CodeCheck initialized
[2020-11-30 00:39:57,167 INFO  L185        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:39:57" (1/1) ...
[2020-11-30 00:39:57,177 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-11-30 00:39:57,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:39:57,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions.
[2020-11-30 00:39:57,228 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions.
[2020-11-30 00:39:57,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2020-11-30 00:39:57,230 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:39:57,310 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:39:57,355 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 00:39:57,365 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:39:57,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions.
[2020-11-30 00:39:57,367 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions.
[2020-11-30 00:39:57,368 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-11-30 00:39:57,368 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:39:57,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:39:57,496 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 00:39:57,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:39:57,604 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions.
[2020-11-30 00:39:57,605 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions.
[2020-11-30 00:39:57,605 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-11-30 00:39:57,605 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:39:57,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:39:57,787 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 00:39:59,028 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:39:59,030 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 30 states and 53 transitions.
[2020-11-30 00:39:59,030 INFO  L276                IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions.
[2020-11-30 00:39:59,034 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-11-30 00:39:59,034 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:39:59,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:39:59,109 INFO  L263         TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:39:59,115 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:39:59,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-11-30 00:40:00,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:00,124 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 61 transitions.
[2020-11-30 00:40:00,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 34 states and 61 transitions.
[2020-11-30 00:40:00,125 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-11-30 00:40:00,125 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:00,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:00,178 INFO  L263         TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:40:00,180 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:00,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2020-11-30 00:40:01,424 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:01,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 72 transitions.
[2020-11-30 00:40:01,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 39 states and 72 transitions.
[2020-11-30 00:40:01,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2020-11-30 00:40:01,427 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:01,468 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:01,470 INFO  L263         TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-11-30 00:40:01,472 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:01,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2020-11-30 00:40:01,937 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:01,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 41 states and 77 transitions.
[2020-11-30 00:40:01,939 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 77 transitions.
[2020-11-30 00:40:01,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-11-30 00:40:01,940 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:01,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:01,995 INFO  L263         TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:40:01,997 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:02,101 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2020-11-30 00:40:02,196 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:02,197 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 42 states and 80 transitions.
[2020-11-30 00:40:02,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 80 transitions.
[2020-11-30 00:40:02,200 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-11-30 00:40:02,200 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:02,259 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:02,260 INFO  L263         TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:40:02,262 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:02,336 INFO  L134       CoverageAnalysis]: Checked inductivity of 50 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2020-11-30 00:40:02,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:02,720 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 46 states and 92 transitions.
[2020-11-30 00:40:02,720 INFO  L276                IsEmpty]: Start isEmpty. Operand 46 states and 92 transitions.
[2020-11-30 00:40:02,721 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-11-30 00:40:02,722 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:02,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:02,766 INFO  L263         TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-11-30 00:40:02,768 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:02,927 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2020-11-30 00:40:05,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:05,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 58 states and 149 transitions.
[2020-11-30 00:40:05,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 58 states and 149 transitions.
[2020-11-30 00:40:05,132 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-11-30 00:40:05,132 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:05,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:05,192 INFO  L263         TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-11-30 00:40:05,194 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:05,277 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2020-11-30 00:40:05,952 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:05,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 60 states and 151 transitions.
[2020-11-30 00:40:05,955 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 151 transitions.
[2020-11-30 00:40:05,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2020-11-30 00:40:05,957 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:06,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:06,032 INFO  L263         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-11-30 00:40:06,034 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:06,167 INFO  L134       CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2020-11-30 00:40:07,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:07,700 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 64 states and 169 transitions.
[2020-11-30 00:40:07,700 INFO  L276                IsEmpty]: Start isEmpty. Operand 64 states and 169 transitions.
[2020-11-30 00:40:07,702 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-11-30 00:40:07,702 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:07,760 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:07,762 INFO  L263         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-11-30 00:40:07,765 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:07,962 INFO  L134       CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2020-11-30 00:40:10,291 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:10,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 69 states and 184 transitions.
[2020-11-30 00:40:10,293 INFO  L276                IsEmpty]: Start isEmpty. Operand 69 states and 184 transitions.
[2020-11-30 00:40:10,295 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2020-11-30 00:40:10,296 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:10,360 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:10,363 INFO  L263         TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-11-30 00:40:10,365 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:10,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked.
[2020-11-30 00:40:11,583 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:11,585 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 71 states and 186 transitions.
[2020-11-30 00:40:11,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 71 states and 186 transitions.
[2020-11-30 00:40:11,587 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-11-30 00:40:11,587 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:11,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:11,638 INFO  L263         TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:40:11,641 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:11,655 INFO  L134       CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2020-11-30 00:40:12,469 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:12,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 74 states and 204 transitions.
[2020-11-30 00:40:12,471 INFO  L276                IsEmpty]: Start isEmpty. Operand 74 states and 204 transitions.
[2020-11-30 00:40:12,473 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-11-30 00:40:12,473 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:12,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:12,546 INFO  L263         TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-11-30 00:40:12,548 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:12,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2020-11-30 00:40:16,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:16,225 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 79 states and 221 transitions.
[2020-11-30 00:40:16,226 INFO  L276                IsEmpty]: Start isEmpty. Operand 79 states and 221 transitions.
[2020-11-30 00:40:16,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2020-11-30 00:40:16,228 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:16,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:16,300 INFO  L263         TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core
[2020-11-30 00:40:16,302 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:16,318 INFO  L134       CoverageAnalysis]: Checked inductivity of 103 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2020-11-30 00:40:18,098 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:18,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 81 states and 222 transitions.
[2020-11-30 00:40:18,099 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 222 transitions.
[2020-11-30 00:40:18,101 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2020-11-30 00:40:18,101 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:18,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:18,169 INFO  L263         TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 9 conjunts are in the unsatisfiable core
[2020-11-30 00:40:18,171 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:18,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2020-11-30 00:40:20,009 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:20,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 83 states and 230 transitions.
[2020-11-30 00:40:20,011 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 230 transitions.
[2020-11-30 00:40:20,012 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2020-11-30 00:40:20,012 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:20,095 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:20,101 INFO  L263         TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 15 conjunts are in the unsatisfiable core
[2020-11-30 00:40:20,102 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:20,533 INFO  L134       CoverageAnalysis]: Checked inductivity of 134 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked.
[2020-11-30 00:40:23,962 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:23,963 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 85 states and 240 transitions.
[2020-11-30 00:40:23,963 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 240 transitions.
[2020-11-30 00:40:23,965 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-11-30 00:40:23,965 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:24,046 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:24,051 INFO  L263         TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-11-30 00:40:24,055 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:25,207 INFO  L603       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-11-30 00:40:25,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 162 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked.
[2020-11-30 00:40:28,677 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:28,679 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 86 states and 242 transitions.
[2020-11-30 00:40:28,679 INFO  L276                IsEmpty]: Start isEmpty. Operand 86 states and 242 transitions.
[2020-11-30 00:40:28,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2020-11-30 00:40:28,680 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:28,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:28,747 INFO  L263         TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-11-30 00:40:28,749 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:29,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 169 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked.
[2020-11-30 00:40:31,370 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:40:31,371 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 87 states and 248 transitions.
[2020-11-30 00:40:31,371 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 248 transitions.
[2020-11-30 00:40:31,373 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-11-30 00:40:31,373 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:40:31,436 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:40:31,444 INFO  L263         TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-11-30 00:40:31,445 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:40:44,678 INFO  L603       QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts
[2020-11-30 00:40:44,728 INFO  L134       CoverageAnalysis]: Checked inductivity of 200 backedges. 28 proven. 19 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked.
[2020-11-30 00:41:53,822 WARN  L193               SmtUtils]: Spent 23.28 s on a formula simplification that was a NOOP. DAG size: 20
[2020-11-30 00:42:08,512 WARN  L193               SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 21
[2020-11-30 00:43:31,298 WARN  L193               SmtUtils]: Spent 4.19 s on a formula simplification that was a NOOP. DAG size: 21
[2020-11-30 00:44:01,599 WARN  L193               SmtUtils]: Spent 11.13 s on a formula simplification that was a NOOP. DAG size: 22
[2020-11-30 00:44:38,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:44:38,027 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 89 states and 254 transitions.
[2020-11-30 00:44:38,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 89 states and 254 transitions.
[2020-11-30 00:44:38,029 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2020-11-30 00:44:38,029 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:44:38,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:44:38,141 INFO  L263         TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core
[2020-11-30 00:44:38,143 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:44:38,165 INFO  L134       CoverageAnalysis]: Checked inductivity of 208 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2020-11-30 00:44:39,778 WARN  L193               SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14
[2020-11-30 00:44:41,634 WARN  L193               SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 15
[2020-11-30 00:44:43,397 WARN  L193               SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 11
[2020-11-30 00:44:46,699 WARN  L193               SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 15
[2020-11-30 00:44:48,841 WARN  L193               SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 16
[2020-11-30 00:44:49,562 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:44:49,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 93 states and 277 transitions.
[2020-11-30 00:44:49,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 93 states and 277 transitions.
[2020-11-30 00:44:49,566 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-11-30 00:44:49,566 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:44:49,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:44:49,664 INFO  L263         TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 15 conjunts are in the unsatisfiable core
[2020-11-30 00:44:49,666 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:44:51,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 212 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked.
[2020-11-30 00:44:55,649 WARN  L193               SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 12
[2020-11-30 00:44:59,523 WARN  L193               SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 13
[2020-11-30 00:45:01,562 WARN  L193               SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 12
[2020-11-30 00:45:05,629 WARN  L193               SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 13
[2020-11-30 00:45:07,846 WARN  L193               SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 21
[2020-11-30 00:45:11,624 WARN  L193               SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 22
[2020-11-30 00:45:12,243 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:45:12,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 96 states and 286 transitions.
[2020-11-30 00:45:12,245 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 286 transitions.
[2020-11-30 00:45:12,246 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-11-30 00:45:12,246 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:45:12,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:45:12,372 INFO  L263         TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:45:12,374 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:45:13,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 214 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2020-11-30 00:45:15,804 WARN  L193               SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18
[2020-11-30 00:45:19,313 WARN  L193               SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16
[2020-11-30 00:46:03,765 WARN  L193               SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:46:04,726 WARN  L193               SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:46:06,763 WARN  L193               SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-11-30 00:46:09,197 WARN  L193               SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-11-30 00:46:10,190 WARN  L193               SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 16
[2020-11-30 00:46:11,303 WARN  L193               SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 16
[2020-11-30 00:46:13,555 WARN  L193               SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 17
[2020-11-30 00:46:16,175 WARN  L193               SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 17
[2020-11-30 00:46:18,417 WARN  L193               SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 14
[2020-11-30 00:46:19,695 WARN  L193               SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 14
[2020-11-30 00:46:22,064 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 15
[2020-11-30 00:46:24,813 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 15
[2020-11-30 00:46:31,204 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:46:31,206 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 112 states and 398 transitions.
[2020-11-30 00:46:31,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 112 states and 398 transitions.
[2020-11-30 00:46:31,208 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2020-11-30 00:46:31,209 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:46:31,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:46:31,377 INFO  L263         TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core
[2020-11-30 00:46:31,379 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:46:31,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 214 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2020-11-30 00:46:33,045 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16
[2020-11-30 00:46:34,248 WARN  L193               SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 17
[2020-11-30 00:46:36,864 WARN  L193               SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 17
[2020-11-30 00:46:39,689 WARN  L193               SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 18
[2020-11-30 00:46:40,758 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:46:41,839 WARN  L193               SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:46:44,120 WARN  L193               SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-11-30 00:46:46,871 WARN  L193               SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-11-30 00:46:47,072 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:46:47,073 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 53 states and 148 transitions.
[2020-11-30 00:46:47,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 148 transitions.
[2020-11-30 00:46:47,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2020-11-30 00:46:47,075 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:46:47,206 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-11-30 00:46:47,232 INFO  L263         TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 18 conjunts are in the unsatisfiable core
[2020-11-30 00:46:47,235 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-11-30 00:46:52,813 INFO  L603       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-11-30 00:46:52,839 INFO  L134       CoverageAnalysis]: Checked inductivity of 250 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked.
[2020-11-30 00:46:54,706 WARN  L193               SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18
[2020-11-30 00:46:58,761 WARN  L193               SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19
[2020-11-30 00:47:01,826 WARN  L193               SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:47:04,924 WARN  L193               SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:47:06,699 WARN  L193               SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21
[2020-11-30 00:47:07,899 WARN  L193               SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22
[2020-11-30 00:47:10,541 WARN  L193               SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 22
[2020-11-30 00:47:13,258 WARN  L193               SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 22
[2020-11-30 00:47:15,347 WARN  L193               SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17
[2020-11-30 00:47:16,649 WARN  L193               SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20
[2020-11-30 00:47:19,518 WARN  L193               SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 18
[2020-11-30 00:47:22,375 WARN  L193               SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 20
[2020-11-30 00:47:25,817 WARN  L193               SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21
[2020-11-30 00:47:28,792 WARN  L193               SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 22
[2020-11-30 00:47:30,251 WARN  L193               SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14
[2020-11-30 00:47:31,199 WARN  L193               SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16
[2020-11-30 00:47:37,424 WARN  L193               SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 13
[2020-11-30 00:47:41,859 WARN  L193               SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 15
[2020-11-30 00:47:44,743 WARN  L193               SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 14
[2020-11-30 00:47:49,867 WARN  L193               SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 18
[2020-11-30 00:47:53,327 WARN  L193               SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 19
[2020-11-30 00:47:56,301 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2020-11-30 00:47:56,302 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 54 states and 151 transitions.
[2020-11-30 00:47:56,302 INFO  L276                IsEmpty]: Start isEmpty. Operand 54 states and 151 transitions.
[2020-11-30 00:47:56,303 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2020-11-30 00:47:56,303 INFO  L428      CodeCheckObserver]: Error Path is FOUND.
[2020-11-30 00:47:56,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-30 00:47:56,490 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-30 00:47:56,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-11-30 00:47:56,661 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-11-30 00:47:56,766 WARN  L483      CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations.
[2020-11-30 00:47:56,895 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:47:56 ImpRootNode
[2020-11-30 00:47:56,896 INFO  L132        PluginConnector]: ------------------------ END CodeCheck----------------------------
[2020-11-30 00:47:56,896 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2020-11-30 00:47:56,897 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2020-11-30 00:47:56,897 INFO  L275        PluginConnector]: Witness Printer initialized
[2020-11-30 00:47:56,898 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:39:57" (3/4) ...
[2020-11-30 00:47:56,900 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2020-11-30 00:47:57,088 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d4ba7f3f-70a7-4163-9d94-e7adbda03d20/bin/ukojak/witness.graphml
[2020-11-30 00:47:57,093 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2020-11-30 00:47:57,094 INFO  L168              Benchmark]: Toolchain (without parser) took 480778.87 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 67.8 MB in the beginning and 56.6 MB in the end (delta: 11.2 MB). Peak memory consumption was 87.1 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,095 INFO  L168              Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 71.3 MB. Free memory was 29.3 MB in the beginning and 29.3 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,096 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 333.49 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 76.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,096 INFO  L168              Benchmark]: Boogie Procedure Inliner took 46.67 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 75.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,098 INFO  L168              Benchmark]: Boogie Preprocessor took 25.93 ms. Allocated memory is still 100.7 MB. Free memory was 75.3 MB in the beginning and 73.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,099 INFO  L168              Benchmark]: RCFGBuilder took 408.12 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 59.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,101 INFO  L168              Benchmark]: CodeCheck took 479759.58 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 59.1 MB in the beginning and 60.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,103 INFO  L168              Benchmark]: Witness Printer took 196.46 ms. Allocated memory is still 176.2 MB. Free memory was 60.8 MB in the beginning and 56.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2020-11-30 00:47:57,112 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 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 479.5s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 923346464 SDtfs, 2769010 SDslu, 67633184 SDs, 0 SdLazy, 1376815734 SolverSat, 467263192 SolverUnsat, 208 SolverUnknown, 0 SolverNotchecked, 388.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10798 GetRequests, 10202 SyntacticMatches, 293 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47219 ImplicationChecksByTransitivity, 391.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 27.4s InterpolantComputationTime, 1100 NumberOfCodeBlocks, 1100 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1006 ConstructedInterpolants, 0 QuantifiedInterpolants, 156082 SizeOfPredicates, 48 NumberOfNonLiveVariables, 2974 ConjunctsInSsa, 233 ConjunctsInUnsatCore, 26 InterpolantComputations, 11 PerfectInterpolantSequences, 2534/2634 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: 8]: a call of __VERIFIER_error() is reachable
    a call of __VERIFIER_error() is reachable
We found a FailurePath: 
[L22]              int counter = 0;
[L24]              short a;
[L25]              long long n, x, y, z;
[L26]              a = __VERIFIER_nondet_ushort()
[L28]              n = 0
[L29]              x = 0
[L30]              y = 1
[L31]              z = 6
       VAL         [counter=0]
[L33]  EXPR        counter++
       VAL         [counter=1]
[L33]  COND TRUE   counter++<2
[L34]  CALL        __VERIFIER_assert(z == 6 * n + 6)
       VAL         [counter=1]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=1]
[L34]  RET         __VERIFIER_assert(z == 6 * n + 6)
       VAL         [counter=1]
[L35]  CALL        __VERIFIER_assert(y == 3 * n * n + 3 * n + 1)
       VAL         [counter=1]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=1]
[L35]  RET         __VERIFIER_assert(y == 3 * n * n + 3 * n + 1)
       VAL         [counter=1]
[L36]  CALL        __VERIFIER_assert(x == n * n * n)
       VAL         [counter=1]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=1]
[L36]  RET         __VERIFIER_assert(x == n * n * n)
       VAL         [counter=1]
[L37]  CALL        __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0)
       VAL         [counter=1]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=1]
[L37]  RET         __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0)
       VAL         [counter=1]
[L38]  CALL        __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0)
       VAL         [counter=1]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=1]
[L38]  RET         __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0)
       VAL         [counter=1]
[L39]  COND FALSE  !(!(n <= a))
[L42]              n = n + 1
[L43]              x = x + y
[L44]              y = y + z
[L45]              z = z + 6
       VAL         [counter=1]
[L33]  EXPR        counter++
       VAL         [counter=2]
[L33]  COND TRUE   counter++<2
[L34]  CALL        __VERIFIER_assert(z == 6 * n + 6)
       VAL         [counter=2]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=2]
[L34]  RET         __VERIFIER_assert(z == 6 * n + 6)
       VAL         [counter=2]
[L35]  CALL        __VERIFIER_assert(y == 3 * n * n + 3 * n + 1)
       VAL         [counter=2]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=2]
[L35]  RET         __VERIFIER_assert(y == 3 * n * n + 3 * n + 1)
       VAL         [counter=2]
[L36]  CALL        __VERIFIER_assert(x == n * n * n)
       VAL         [counter=2]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=2]
[L36]  RET         __VERIFIER_assert(x == n * n * n)
       VAL         [counter=2]
[L37]  CALL        __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0)
       VAL         [counter=2]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=2]
[L37]  RET         __VERIFIER_assert(y*z - 18*x - 12*y + 2*z - 6 == 0)
       VAL         [counter=2]
[L38]  CALL        __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0)
       VAL         [counter=2]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=2]
[L38]  RET         __VERIFIER_assert((z*z) - 12*y - 6*z + 12 == 0)
       VAL         [counter=2]
[L39]  COND FALSE  !(!(n <= a))
[L42]              n = n + 1
[L43]              x = x + y
[L44]              y = y + z
[L45]              z = z + 6
       VAL         [counter=2]
[L33]  EXPR        counter++
       VAL         [counter=3]
[L33]  COND FALSE  !(counter++<2)
[L48]  CALL        __VERIFIER_assert(z == 6*n + 6)
       VAL         [counter=3]
[L15]  COND FALSE  !(!(cond))
       VAL         [counter=3]
[L48]  RET         __VERIFIER_assert(z == 6*n + 6)
       VAL         [counter=3]
[L49]  CALL        __VERIFIER_assert(6*a*x - x*z + 12*x == 0)
       VAL         [counter=3]
[L15]  COND TRUE   !(cond)
       VAL         [counter=3]
[L8]               __assert_fail("0", "cohencu-ll.c", 8, "reach_error")
       VAL         [counter=3]

 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.28 ms. Allocated memory is still 71.3 MB. Free memory was 29.3 MB in the beginning and 29.3 MB in the end (delta: 34.4 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 333.49 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 76.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 46.67 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 75.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 25.93 ms. Allocated memory is still 100.7 MB. Free memory was 75.3 MB in the beginning and 73.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 408.12 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 59.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB.
 * CodeCheck took 479759.58 ms. Allocated memory was 100.7 MB in the beginning and 176.2 MB in the end (delta: 75.5 MB). Free memory was 59.1 MB in the beginning and 60.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 75.3 MB. Max. memory is 16.1 GB.
 * Witness Printer took 196.46 ms. Allocated memory is still 176.2 MB. Free memory was 60.8 MB in the beginning and 56.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...