./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version e943c265
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b
..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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 0.2.1-dev-e943c26
[2021-10-21 20:14:17,669 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-21 20:14:17,671 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-21 20:14:17,709 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-21 20:14:17,710 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-21 20:14:17,713 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-21 20:14:17,715 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-21 20:14:17,719 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-21 20:14:17,722 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-21 20:14:17,727 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-21 20:14:17,728 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-21 20:14:17,729 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-21 20:14:17,730 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-21 20:14:17,732 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-21 20:14:17,735 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-21 20:14:17,742 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-21 20:14:17,743 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-21 20:14:17,744 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-21 20:14:17,745 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-21 20:14:17,747 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-21 20:14:17,748 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-21 20:14:17,750 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-21 20:14:17,751 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-21 20:14:17,752 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-21 20:14:17,755 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-21 20:14:17,756 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-21 20:14:17,756 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-21 20:14:17,757 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-21 20:14:17,757 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-21 20:14:17,758 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-21 20:14:17,759 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-21 20:14:17,760 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-21 20:14:17,760 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-21 20:14:17,761 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-21 20:14:17,762 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-21 20:14:17,763 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-21 20:14:17,763 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-21 20:14:17,764 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-21 20:14:17,764 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-21 20:14:17,765 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-21 20:14:17,766 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-21 20:14:17,767 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-21 20:14:17,791 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-21 20:14:17,792 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-21 20:14:17,792 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-21 20:14:17,792 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-21 20:14:17,794 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-21 20:14:17,794 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-21 20:14:17,794 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-21 20:14:17,794 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-21 20:14:17,794 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-21 20:14:17,795 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-21 20:14:17,795 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-21 20:14:17,795 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-21 20:14:17,795 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-21 20:14:17,795 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-21 20:14:17,795 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-21 20:14:17,796 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-21 20:14:17,796 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-21 20:14:17,796 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-21 20:14:17,796 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-21 20:14:17,796 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-21 20:14:17,797 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-21 20:14:17,797 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-21 20:14:17,797 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-21 20:14:17,797 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-21 20:14:17,797 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-21 20:14:17,798 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-21 20:14:17,798 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-21 20:14:17,798 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-21 20:14:17,798 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-10-21 20:14:17,798 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-10-21 20:14:17,798 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-21 20:14:17,799 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-21 20:14:17,799 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b
[2021-10-21 20:14:18,037 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-21 20:14:18,060 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-21 20:14:18,062 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-21 20:14:18,064 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-21 20:14:18,065 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-21 20:14:18,066 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c
[2021-10-21 20:14:18,135 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/data/c7624cbf5/8cd8e0e01e0f49cda2445b01b05a3f3e/FLAGa8ae5cca2
[2021-10-21 20:14:18,639 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-21 20:14:18,640 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c
[2021-10-21 20:14:18,654 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/data/c7624cbf5/8cd8e0e01e0f49cda2445b01b05a3f3e/FLAGa8ae5cca2
[2021-10-21 20:14:18,965 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/data/c7624cbf5/8cd8e0e01e0f49cda2445b01b05a3f3e
[2021-10-21 20:14:18,967 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-21 20:14:18,968 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-21 20:14:18,972 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-21 20:14:18,972 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-21 20:14:18,975 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-21 20:14:18,976 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:14:18" (1/1) ...
[2021-10-21 20:14:18,977 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d69010a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:18, skipping insertion in model container
[2021-10-21 20:14:18,977 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:14:18" (1/1) ...
[2021-10-21 20:14:18,984 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-21 20:14:19,033 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-21 20:14:19,311 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135]
[2021-10-21 20:14:19,330 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-21 20:14:19,339 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-21 20:14:19,398 WARN  L228   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135]
[2021-10-21 20:14:19,410 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-21 20:14:19,429 INFO  L208         MainTranslator]: Completed translation
[2021-10-21 20:14:19,430 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19 WrapperNode
[2021-10-21 20:14:19,430 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-21 20:14:19,431 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-21 20:14:19,431 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-21 20:14:19,431 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-21 20:14:19,442 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,472 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,534 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-21 20:14:19,535 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-21 20:14:19,535 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-21 20:14:19,535 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-21 20:14:19,544 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,544 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,549 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,550 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,577 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,587 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,590 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,607 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-21 20:14:19,608 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-21 20:14:19,608 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-21 20:14:19,608 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-21 20:14:19,623 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (1/1) ...
[2021-10-21 20:14:19,630 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-21 20:14:19,643 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/z3
[2021-10-21 20:14:19,660 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-21 20:14:19,690 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-21 20:14:19,710 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-21 20:14:19,710 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-21 20:14:19,710 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-21 20:14:19,711 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-21 20:14:20,628 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-21 20:14:20,628 INFO  L299             CfgBuilder]: Removed 204 assume(true) statements.
[2021-10-21 20:14:20,630 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:14:20 BoogieIcfgContainer
[2021-10-21 20:14:20,631 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-21 20:14:20,633 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-21 20:14:20,633 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-21 20:14:20,636 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-21 20:14:20,636 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:14:18" (1/3) ...
[2021-10-21 20:14:20,637 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240b11db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:14:20, skipping insertion in model container
[2021-10-21 20:14:20,637 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:14:19" (2/3) ...
[2021-10-21 20:14:20,638 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240b11db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:14:20, skipping insertion in model container
[2021-10-21 20:14:20,638 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:14:20" (3/3) ...
[2021-10-21 20:14:20,639 INFO  L111   eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c
[2021-10-21 20:14:20,645 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-21 20:14:20,645 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-10-21 20:14:20,698 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-21 20:14:20,704 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-21 20:14:20,704 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-10-21 20:14:20,721 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:20,727 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-10-21 20:14:20,727 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 20:14:20,727 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 20:14:20,728 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 20:14:20,733 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 20:14:20,733 INFO  L82        PathProgramCache]: Analyzing trace with hash -101624794, now seen corresponding path program 1 times
[2021-10-21 20:14:20,742 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 20:14:20,743 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543943909]
[2021-10-21 20:14:20,743 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 20:14:20,744 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 20:14:20,889 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 20:14:20,978 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 20:14:20,978 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 20:14:20,979 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543943909]
[2021-10-21 20:14:20,979 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543943909] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 20:14:20,980 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 20:14:20,980 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-21 20:14:20,981 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434089083]
[2021-10-21 20:14:20,986 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-21 20:14:20,986 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 20:14:20,998 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-21 20:14:20,999 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-21 20:14:21,001 INFO  L87              Difference]: Start difference. First operand  has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,033 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 20:14:21,033 INFO  L93              Difference]: Finished difference Result 280 states and 419 transitions.
[2021-10-21 20:14:21,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-10-21 20:14:21,035 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-10-21 20:14:21,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 20:14:21,045 INFO  L225             Difference]: With dead ends: 280
[2021-10-21 20:14:21,045 INFO  L226             Difference]: Without dead ends: 139
[2021-10-21 20:14:21,048 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-21 20:14:21,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 139 states.
[2021-10-21 20:14:21,086 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139.
[2021-10-21 20:14:21,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions.
[2021-10-21 20:14:21,092 INFO  L78                 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18
[2021-10-21 20:14:21,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 20:14:21,093 INFO  L470      AbstractCegarLoop]: Abstraction has 139 states and 201 transitions.
[2021-10-21 20:14:21,093 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,093 INFO  L276                IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions.
[2021-10-21 20:14:21,095 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-21 20:14:21,095 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 20:14:21,095 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 20:14:21,095 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-21 20:14:21,096 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 20:14:21,096 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 20:14:21,096 INFO  L82        PathProgramCache]: Analyzing trace with hash 524834626, now seen corresponding path program 1 times
[2021-10-21 20:14:21,097 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 20:14:21,097 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56256883]
[2021-10-21 20:14:21,097 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 20:14:21,097 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 20:14:21,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 20:14:21,279 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 20:14:21,279 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 20:14:21,279 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56256883]
[2021-10-21 20:14:21,279 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56256883] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 20:14:21,280 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 20:14:21,280 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-21 20:14:21,280 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474203263]
[2021-10-21 20:14:21,281 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-21 20:14:21,281 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 20:14:21,282 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-21 20:14:21,283 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 20:14:21,283 INFO  L87              Difference]: Start difference. First operand 139 states and 201 transitions. Second operand  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 20:14:21,307 INFO  L93              Difference]: Finished difference Result 139 states and 201 transitions.
[2021-10-21 20:14:21,311 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-21 20:14:21,311 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2021-10-21 20:14:21,311 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 20:14:21,312 INFO  L225             Difference]: With dead ends: 139
[2021-10-21 20:14:21,312 INFO  L226             Difference]: Without dead ends: 57
[2021-10-21 20:14:21,313 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 20:14:21,314 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2021-10-21 20:14:21,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57.
[2021-10-21 20:14:21,319 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions.
[2021-10-21 20:14:21,320 INFO  L78                 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19
[2021-10-21 20:14:21,320 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 20:14:21,320 INFO  L470      AbstractCegarLoop]: Abstraction has 57 states and 82 transitions.
[2021-10-21 20:14:21,320 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,321 INFO  L276                IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions.
[2021-10-21 20:14:21,321 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-21 20:14:21,322 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 20:14:21,322 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 20:14:21,325 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-21 20:14:21,325 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 20:14:21,328 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 20:14:21,328 INFO  L82        PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times
[2021-10-21 20:14:21,329 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 20:14:21,329 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373811163]
[2021-10-21 20:14:21,330 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 20:14:21,331 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 20:14:21,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 20:14:21,488 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 20:14:21,488 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 20:14:21,488 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373811163]
[2021-10-21 20:14:21,489 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373811163] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 20:14:21,489 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 20:14:21,489 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-21 20:14:21,489 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410525910]
[2021-10-21 20:14:21,490 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-21 20:14:21,490 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 20:14:21,491 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-21 20:14:21,491 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-21 20:14:21,514 INFO  L87              Difference]: Start difference. First operand 57 states and 82 transitions. Second operand  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,570 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 20:14:21,571 INFO  L93              Difference]: Finished difference Result 133 states and 195 transitions.
[2021-10-21 20:14:21,571 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-10-21 20:14:21,571 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2021-10-21 20:14:21,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 20:14:21,572 INFO  L225             Difference]: With dead ends: 133
[2021-10-21 20:14:21,573 INFO  L226             Difference]: Without dead ends: 82
[2021-10-21 20:14:21,573 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 38.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-21 20:14:21,574 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2021-10-21 20:14:21,583 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78.
[2021-10-21 20:14:21,584 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions.
[2021-10-21 20:14:21,587 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24
[2021-10-21 20:14:21,587 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 20:14:21,587 INFO  L470      AbstractCegarLoop]: Abstraction has 78 states and 114 transitions.
[2021-10-21 20:14:21,588 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions.
[2021-10-21 20:14:21,589 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-10-21 20:14:21,589 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 20:14:21,589 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 20:14:21,589 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-21 20:14:21,590 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 20:14:21,590 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 20:14:21,590 INFO  L82        PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times
[2021-10-21 20:14:21,591 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 20:14:21,591 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557568625]
[2021-10-21 20:14:21,591 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 20:14:21,591 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 20:14:21,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 20:14:21,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 20:14:21,680 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 20:14:21,680 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557568625]
[2021-10-21 20:14:21,684 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557568625] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 20:14:21,685 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 20:14:21,685 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-21 20:14:21,685 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796325596]
[2021-10-21 20:14:21,685 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-21 20:14:21,686 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 20:14:21,686 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-21 20:14:21,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 20:14:21,687 INFO  L87              Difference]: Start difference. First operand 78 states and 114 transitions. Second operand  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,749 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 20:14:21,750 INFO  L93              Difference]: Finished difference Result 173 states and 255 transitions.
[2021-10-21 20:14:21,750 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-21 20:14:21,750 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2021-10-21 20:14:21,751 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 20:14:21,752 INFO  L225             Difference]: With dead ends: 173
[2021-10-21 20:14:21,752 INFO  L226             Difference]: Without dead ends: 101
[2021-10-21 20:14:21,753 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 20:14:21,753 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2021-10-21 20:14:21,771 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99.
[2021-10-21 20:14:21,771 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions.
[2021-10-21 20:14:21,773 INFO  L78                 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26
[2021-10-21 20:14:21,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 20:14:21,773 INFO  L470      AbstractCegarLoop]: Abstraction has 99 states and 141 transitions.
[2021-10-21 20:14:21,774 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:21,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions.
[2021-10-21 20:14:21,775 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-21 20:14:21,775 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 20:14:21,775 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 20:14:21,775 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-21 20:14:21,776 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 20:14:21,776 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 20:14:21,776 INFO  L82        PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times
[2021-10-21 20:14:21,776 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 20:14:21,777 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962837669]
[2021-10-21 20:14:21,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 20:14:21,777 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 20:14:21,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 20:14:21,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 20:14:21,877 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 20:14:21,877 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962837669]
[2021-10-21 20:14:21,877 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962837669] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 20:14:21,878 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 20:14:21,878 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-21 20:14:21,878 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478013289]
[2021-10-21 20:14:21,880 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-21 20:14:21,880 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 20:14:21,882 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-21 20:14:21,883 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-21 20:14:21,883 INFO  L87              Difference]: Start difference. First operand 99 states and 141 transitions. Second operand  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:22,027 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 20:14:22,028 INFO  L93              Difference]: Finished difference Result 566 states and 826 transitions.
[2021-10-21 20:14:22,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-10-21 20:14:22,029 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27
[2021-10-21 20:14:22,029 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-21 20:14:22,034 INFO  L225             Difference]: With dead ends: 566
[2021-10-21 20:14:22,034 INFO  L226             Difference]: Without dead ends: 473
[2021-10-21 20:14:22,037 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-10-21 20:14:22,039 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 473 states.
[2021-10-21 20:14:22,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 184.
[2021-10-21 20:14:22,089 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 184 states, 183 states have (on average 1.4098360655737705) internal successors, (258), 183 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:22,090 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions.
[2021-10-21 20:14:22,090 INFO  L78                 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 27
[2021-10-21 20:14:22,090 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-21 20:14:22,091 INFO  L470      AbstractCegarLoop]: Abstraction has 184 states and 258 transitions.
[2021-10-21 20:14:22,092 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-21 20:14:22,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions.
[2021-10-21 20:14:22,097 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-21 20:14:22,098 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-21 20:14:22,098 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-21 20:14:22,098 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-21 20:14:22,098 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-21 20:14:22,099 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 20:14:22,099 INFO  L82        PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times
[2021-10-21 20:14:22,099 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 20:14:22,099 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229974737]
[2021-10-21 20:14:22,100 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 20:14:22,100 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 20:14:22,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 20:14:22,173 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 20:14:22,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 20:14:22,290 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 20:14:22,290 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-10-21 20:14:22,291 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-21 20:14:22,293 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-21 20:14:22,293 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-21 20:14:22,294 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-21 20:14:22,300 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-21 20:14:22,383 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:14:22 BoogieIcfgContainer
[2021-10-21 20:14:22,384 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-21 20:14:22,384 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-21 20:14:22,384 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-21 20:14:22,385 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-21 20:14:22,385 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:14:20" (3/4) ...
[2021-10-21 20:14:22,387 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-21 20:14:22,459 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/witness.graphml
[2021-10-21 20:14:22,459 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-21 20:14:22,461 INFO  L168              Benchmark]: Toolchain (without parser) took 3491.29 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 86.7 MB in the beginning and 92.3 MB in the end (delta: -5.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,461 INFO  L168              Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 86.0 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,462 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 458.27 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 89.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,462 INFO  L168              Benchmark]: Boogie Procedure Inliner took 103.42 ms. Allocated memory is still 121.6 MB. Free memory was 89.9 MB in the beginning and 85.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,463 INFO  L168              Benchmark]: Boogie Preprocessor took 71.79 ms. Allocated memory is still 121.6 MB. Free memory was 85.5 MB in the beginning and 82.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,463 INFO  L168              Benchmark]: RCFGBuilder took 1023.22 ms. Allocated memory is still 121.6 MB. Free memory was 82.1 MB in the beginning and 91.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,464 INFO  L168              Benchmark]: TraceAbstraction took 1751.11 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 90.8 MB in the beginning and 103.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,464 INFO  L168              Benchmark]: Witness Printer took 74.81 ms. Allocated memory is still 151.0 MB. Free memory was 103.8 MB in the beginning and 92.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-21 20:14:22,467 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17 ms. Allocated memory is still 86.0 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 458.27 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 89.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 103.42 ms. Allocated memory is still 121.6 MB. Free memory was 89.9 MB in the beginning and 85.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 71.79 ms. Allocated memory is still 121.6 MB. Free memory was 85.5 MB in the beginning and 82.7 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 1023.22 ms. Allocated memory is still 121.6 MB. Free memory was 82.1 MB in the beginning and 91.5 MB in the end (delta: -9.5 MB). Peak memory consumption was 48.6 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 1751.11 ms. Allocated memory was 121.6 MB in the beginning and 151.0 MB in the end (delta: 29.4 MB). Free memory was 90.8 MB in the beginning and 103.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB.
 * Witness Printer took 74.81 ms. Allocated memory is still 151.0 MB. Free memory was 103.8 MB in the beginning and 92.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 779]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L134]               int pumpRunning  =    0;
[L135]               int systemActive  =    1;
[L578]               static struct __ACC__ERR *head  =    (struct __ACC__ERR *)0;
[L822]               int waterLevel  =    1;
[L823]               int methaneLevelCritical  =    0;
[L925]               int cleanupTimeShifts  =    4;
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L998]               int retValue_acc ;
[L999]               int tmp ;
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L813]               int retValue_acc ;
[L816]               retValue_acc = 1
[L817]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L1005]              tmp = valid_product()
[L1007]  COND TRUE   \read(tmp)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L57]                int splverifierCounter ;
[L58]                int tmp ;
[L59]                int tmp___0 ;
[L60]                int tmp___1 ;
[L61]                int tmp___2 ;
[L64]                splverifierCounter = 0
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L66]    COND TRUE   1
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L68]    COND TRUE   splverifierCounter < 4
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L74]                tmp = __VERIFIER_nondet_int()
[L76]    COND TRUE   \read(tmp)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L840]   COND TRUE   waterLevel < 2
[L841]               waterLevel = waterLevel + 1
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L84]                tmp___0 = __VERIFIER_nondet_int()
[L86]    COND FALSE  !(\read(tmp___0))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L94]                tmp___2 = __VERIFIER_nondet_int()
[L96]    COND FALSE  !(\read(tmp___2))
[L102]               tmp___1 = __VERIFIER_nondet_int()
[L104]   COND TRUE   \read(tmp___1)
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L353]   COND FALSE  !(\read(pumpRunning))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L360]               systemActive = 0
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L142]   COND FALSE  !(\read(pumpRunning))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L149]   COND FALSE  !(\read(systemActive))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L376]               int tmp ;
[L377]               int tmp___0 ;
[L378]               int tmp___1 ;
[L861]               int retValue_acc ;
[L864]               retValue_acc = methaneLevelCritical
[L865]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L382]               tmp = isMethaneLevelCritical()
[L384]   COND FALSE  !(\read(tmp))
[L893]               int retValue_acc ;
[L896]               retValue_acc = waterLevel
[L897]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L388]               tmp___0 = getWaterLevel()
[L390]   COND TRUE   tmp___0 == 2
[L267]               int retValue_acc ;
[L270]               retValue_acc = pumpRunning
[L271]               return (retValue_acc);
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L392]               tmp___1 = isPumpRunning()
[L394]   COND FALSE  !(\read(tmp___1))
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L779]               reach_error()
         VAL         [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]

  - UnprovableResult [Line: 779]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 779]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1601.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 20.0ms, AutomataDifference: 400.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 575 SDtfs, 845 SDslu, 404 SDs, 0 SdLazy, 76 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 107.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 73.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred in iteration=5, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 122.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 295 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 43.2ms SsaConstructionTime, 324.7ms SatisfiabilityAnalysisTime, 387.7ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2021-10-21 20:14:22,516 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd3152f7-c46b-4518-82aa-3d8fac78d6d0/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...