./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae
............................................................................................................................................
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae
......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
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-b2eff8b
[2021-10-29 05:58:35,848 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-29 05:58:35,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-29 05:58:35,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-29 05:58:35,930 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-29 05:58:35,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-29 05:58:35,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-29 05:58:35,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-29 05:58:35,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-29 05:58:35,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-29 05:58:35,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-29 05:58:35,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-29 05:58:35,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-29 05:58:35,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-29 05:58:35,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-29 05:58:35,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-29 05:58:35,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-29 05:58:35,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-29 05:58:35,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-29 05:58:35,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-29 05:58:36,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-29 05:58:36,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-29 05:58:36,010 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-29 05:58:36,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-29 05:58:36,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-29 05:58:36,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-29 05:58:36,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-29 05:58:36,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-29 05:58:36,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-29 05:58:36,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-29 05:58:36,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-29 05:58:36,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-29 05:58:36,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-29 05:58:36,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-29 05:58:36,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-29 05:58:36,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-29 05:58:36,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-29 05:58:36,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-29 05:58:36,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-29 05:58:36,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-29 05:58:36,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-29 05:58:36,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf
[2021-10-29 05:58:36,099 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-29 05:58:36,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-29 05:58:36,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-10-29 05:58:36,102 INFO L138 SettingsManager]: * User list type=DISABLED
[2021-10-29 05:58:36,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2021-10-29 05:58:36,102 INFO L138 SettingsManager]: * Explicit value domain=true
[2021-10-29 05:58:36,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2021-10-29 05:58:36,103 INFO L138 SettingsManager]: * Octagon Domain=false
[2021-10-29 05:58:36,103 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain
[2021-10-29 05:58:36,104 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true
[2021-10-29 05:58:36,105 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true
[2021-10-29 05:58:36,105 INFO L138 SettingsManager]: * Interval Domain=false
[2021-10-29 05:58:36,106 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults:
[2021-10-29 05:58:36,106 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer
[2021-10-29 05:58:36,106 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK
[2021-10-29 05:58:36,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-29 05:58:36,107 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-29 05:58:36,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-29 05:58:36,108 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-29 05:58:36,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-29 05:58:36,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-29 05:58:36,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-29 05:58:36,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-29 05:58:36,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-10-29 05:58:36,110 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-29 05:58:36,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-29 05:58:36,110 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-29 05:58:36,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-29 05:58:36,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-29 05:58:36,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-29 05:58:36,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-29 05:58:36,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-29 05:58:36,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-29 05:58:36,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-29 05:58:36,115 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN
[2021-10-29 05:58:36,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-29 05:58:36,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-29 05:58:36,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-29 05:58:36,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-10-29 05:58:36,116 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES
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_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae
[2021-10-29 05:58:36,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-29 05:58:36,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-29 05:58:36,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-29 05:58:36,492 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-29 05:58:36,493 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-29 05:58:36,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c
[2021-10-29 05:58:36,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/6e705682d/2e5e700f79954761bfd222d3d96d9301/FLAGaed8c813c
[2021-10-29 05:58:37,195 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-29 05:58:37,196 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c
[2021-10-29 05:58:37,210 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/6e705682d/2e5e700f79954761bfd222d3d96d9301/FLAGaed8c813c
[2021-10-29 05:58:37,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/6e705682d/2e5e700f79954761bfd222d3d96d9301
[2021-10-29 05:58:37,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-29 05:58:37,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-29 05:58:37,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-29 05:58:37,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-29 05:58:37,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-29 05:58:37,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:58:37" (1/1) ...
[2021-10-29 05:58:37,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65fb2fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:37, skipping insertion in model container
[2021-10-29 05:58:37,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:58:37" (1/1) ...
[2021-10-29 05:58:37,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-29 05:58:37,509 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-29 05:58:37,723 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_0871c358-0d40-442d-b189-369fe3c0a81c/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618]
[2021-10-29 05:58:37,859 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-29 05:58:37,871 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2021-10-29 05:58:37,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@105e5687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:37, skipping insertion in model container
[2021-10-29 05:58:37,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-29 05:58:37,877 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2021-10-29 05:58:37,880 INFO L168 Benchmark]: Toolchain (without parser) took 436.26 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 48.3 MB in the beginning and 77.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:37,882 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-29 05:58:37,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.21 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 48.1 MB in the beginning and 77.7 MB in the end (delta: -29.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:37,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 88.1 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 433.21 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 48.1 MB in the beginning and 77.7 MB in the end (delta: -29.6 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 651]: Unsupported Syntax
Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
### Bit-precise run ###
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-29 05:58:40,414 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-29 05:58:40,418 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-29 05:58:40,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-29 05:58:40,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-29 05:58:40,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-29 05:58:40,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-29 05:58:40,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-29 05:58:40,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-29 05:58:40,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-29 05:58:40,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-29 05:58:40,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-29 05:58:40,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-29 05:58:40,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-29 05:58:40,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-29 05:58:40,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-29 05:58:40,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-29 05:58:40,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-29 05:58:40,523 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-29 05:58:40,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-29 05:58:40,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-29 05:58:40,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-29 05:58:40,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-29 05:58:40,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-29 05:58:40,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-29 05:58:40,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-29 05:58:40,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-29 05:58:40,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-29 05:58:40,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-29 05:58:40,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-29 05:58:40,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-29 05:58:40,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-29 05:58:40,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-29 05:58:40,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-29 05:58:40,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-29 05:58:40,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-29 05:58:40,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-29 05:58:40,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-29 05:58:40,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-29 05:58:40,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-29 05:58:40,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-29 05:58:40,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf
[2021-10-29 05:58:40,617 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-29 05:58:40,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-29 05:58:40,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-10-29 05:58:40,620 INFO L138 SettingsManager]: * User list type=DISABLED
[2021-10-29 05:58:40,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2021-10-29 05:58:40,620 INFO L138 SettingsManager]: * Explicit value domain=true
[2021-10-29 05:58:40,621 INFO L138 SettingsManager]: * Octagon Domain=false
[2021-10-29 05:58:40,621 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain
[2021-10-29 05:58:40,621 INFO L138 SettingsManager]: * Interval Domain=false
[2021-10-29 05:58:40,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-29 05:58:40,624 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-29 05:58:40,624 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-29 05:58:40,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-29 05:58:40,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-29 05:58:40,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-29 05:58:40,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-29 05:58:40,625 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-10-29 05:58:40,626 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-10-29 05:58:40,626 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-10-29 05:58:40,626 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-29 05:58:40,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-29 05:58:40,627 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-29 05:58:40,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-29 05:58:40,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-29 05:58:40,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-29 05:58:40,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-29 05:58:40,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-29 05:58:40,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-29 05:58:40,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-29 05:58:40,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-29 05:58:40,629 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS
[2021-10-29 05:58:40,629 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-10-29 05:58:40,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-29 05:58:40,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-29 05:58:40,630 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-10-29 05:58:40,630 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae
[2021-10-29 05:58:41,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-29 05:58:41,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-29 05:58:41,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-29 05:58:41,045 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-29 05:58:41,046 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-29 05:58:41,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c
[2021-10-29 05:58:41,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/4555607a7/9813b88c8e604b1d9242116a001226f4/FLAG496104d1b
[2021-10-29 05:58:41,860 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-29 05:58:41,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c
[2021-10-29 05:58:41,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/4555607a7/9813b88c8e604b1d9242116a001226f4/FLAG496104d1b
[2021-10-29 05:58:42,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/data/4555607a7/9813b88c8e604b1d9242116a001226f4
[2021-10-29 05:58:42,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-29 05:58:42,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-29 05:58:42,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-29 05:58:42,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-29 05:58:42,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-29 05:58:42,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b60acab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42, skipping insertion in model container
[2021-10-29 05:58:42,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-29 05:58:42,183 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-29 05:58:42,387 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_0871c358-0d40-442d-b189-369fe3c0a81c/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618]
[2021-10-29 05:58:42,591 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-29 05:58:42,609 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2021-10-29 05:58:42,622 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-29 05:58:42,631 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_0871c358-0d40-442d-b189-369fe3c0a81c/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618]
[2021-10-29 05:58:42,722 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-29 05:58:42,728 INFO L203 MainTranslator]: Completed pre-run
[2021-10-29 05:58:42,743 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_0871c358-0d40-442d-b189-369fe3c0a81c/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618]
[2021-10-29 05:58:42,828 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-29 05:58:42,857 INFO L208 MainTranslator]: Completed translation
[2021-10-29 05:58:42,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42 WrapperNode
[2021-10-29 05:58:42,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-29 05:58:42,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-29 05:58:42,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-29 05:58:42,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-29 05:58:42,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-29 05:58:42,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-29 05:58:42,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-29 05:58:42,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-29 05:58:42,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:42,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:43,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:43,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:43,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:43,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-29 05:58:43,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-29 05:58:43,042 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-29 05:58:43,042 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-29 05:58:43,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (1/1) ...
[2021-10-29 05:58:43,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-29 05:58:43,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/z3
[2021-10-29 05:58:43,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:43,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-29 05:58:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-29 05:58:43,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-10-29 05:58:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-29 05:58:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-29 05:58:45,886 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-29 05:58:45,886 INFO L299 CfgBuilder]: Removed 204 assume(true) statements.
[2021-10-29 05:58:45,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:58:45 BoogieIcfgContainer
[2021-10-29 05:58:45,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-29 05:58:45,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-29 05:58:45,894 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-29 05:58:45,897 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-29 05:58:45,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:58:42" (1/3) ...
[2021-10-29 05:58:45,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcffd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:58:45, skipping insertion in model container
[2021-10-29 05:58:45,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:58:42" (2/3) ...
[2021-10-29 05:58:45,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bcffd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:58:45, skipping insertion in model container
[2021-10-29 05:58:45,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:58:45" (3/3) ...
[2021-10-29 05:58:45,902 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c
[2021-10-29 05:58:45,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-29 05:58:45,909 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations.
[2021-10-29 05:58:45,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-29 05:58:45,982 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=FINITE_AUTOMATA, 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
[2021-10-29 05:58:45,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-10-29 05:58:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 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)
[2021-10-29 05:58:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-10-29 05:58:46,009 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-29 05:58:46,010 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 05:58:46,010 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-29 05:58:46,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 05:58:46,016 INFO L85 PathProgramCache]: Analyzing trace with hash -839049995, now seen corresponding path program 1 times
[2021-10-29 05:58:46,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2021-10-29 05:58:46,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973036525]
[2021-10-29 05:58:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 05:58:46,032 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-29 05:58:46,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat
[2021-10-29 05:58:46,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:46,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-10-29 05:58:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 05:58:46,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-10-29 05:58:46,352 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 05:58:46,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:46,452 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-10-29 05:58:46,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:46,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2021-10-29 05:58:46,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973036525]
[2021-10-29 05:58:46,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [973036525] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-29 05:58:46,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-29 05:58:46,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-10-29 05:58:46,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353085963]
[2021-10-29 05:58:46,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-10-29 05:58:46,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2021-10-29 05:58:46,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-10-29 05:58:46,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-29 05:58:46,559 INFO L87 Difference]: Start difference. First operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 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)
[2021-10-29 05:58:46,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 05:58:46,598 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions.
[2021-10-29 05:58:46,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-10-29 05:58:46,600 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
[2021-10-29 05:58:46,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-29 05:58:46,611 INFO L225 Difference]: With dead ends: 268
[2021-10-29 05:58:46,611 INFO L226 Difference]: Without dead ends: 133
[2021-10-29 05:58:46,614 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-10-29 05:58:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2021-10-29 05:58:46,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133.
[2021-10-29 05:58:46,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.476923076923077) internal successors, (192), 132 states have internal predecessors, (192), 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)
[2021-10-29 05:58:46,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions.
[2021-10-29 05:58:46,662 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18
[2021-10-29 05:58:46,662 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-29 05:58:46,662 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions.
[2021-10-29 05:58:46,662 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)
[2021-10-29 05:58:46,663 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions.
[2021-10-29 05:58:46,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-29 05:58:46,664 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-29 05:58:46,664 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 05:58:46,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-10-29 05:58:46,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3
[2021-10-29 05:58:46,878 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-29 05:58:46,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 05:58:46,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1750080748, now seen corresponding path program 1 times
[2021-10-29 05:58:46,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2021-10-29 05:58:46,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147698910]
[2021-10-29 05:58:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 05:58:46,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-29 05:58:46,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat
[2021-10-29 05:58:46,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:46,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-10-29 05:58:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 05:58:47,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 05:58:47,102 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 05:58:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:47,180 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-10-29 05:58:47,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:47,243 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2021-10-29 05:58:47,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147698910]
[2021-10-29 05:58:47,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147698910] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-29 05:58:47,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-29 05:58:47,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-10-29 05:58:47,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277306349]
[2021-10-29 05:58:47,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-29 05:58:47,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2021-10-29 05:58:47,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-29 05:58:47,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-29 05:58:47,247 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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)
[2021-10-29 05:58:47,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 05:58:47,267 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions.
[2021-10-29 05:58:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-29 05:58:47,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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
[2021-10-29 05:58:47,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-29 05:58:47,268 INFO L225 Difference]: With dead ends: 133
[2021-10-29 05:58:47,268 INFO L226 Difference]: Without dead ends: 55
[2021-10-29 05:58:47,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-29 05:58:47,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2021-10-29 05:58:47,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2021-10-29 05:58:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 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)
[2021-10-29 05:58:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions.
[2021-10-29 05:58:47,276 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19
[2021-10-29 05:58:47,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-29 05:58:47,277 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions.
[2021-10-29 05:58:47,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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)
[2021-10-29 05:58:47,277 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions.
[2021-10-29 05:58:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-29 05:58:47,278 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-29 05:58:47,279 INFO L513 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]
[2021-10-29 05:58:47,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-10-29 05:58:47,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3
[2021-10-29 05:58:47,496 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-29 05:58:47,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 05:58:47,497 INFO L85 PathProgramCache]: Analyzing trace with hash -980873092, now seen corresponding path program 1 times
[2021-10-29 05:58:47,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2021-10-29 05:58:47,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175568224]
[2021-10-29 05:58:47,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 05:58:47,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-29 05:58:47,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat
[2021-10-29 05:58:47,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:47,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-10-29 05:58:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 05:58:47,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 05:58:47,726 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 05:58:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:47,845 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-10-29 05:58:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:47,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2021-10-29 05:58:47,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175568224]
[2021-10-29 05:58:47,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175568224] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-29 05:58:47,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-29 05:58:47,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-10-29 05:58:47,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168046354]
[2021-10-29 05:58:47,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-29 05:58:47,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2021-10-29 05:58:47,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-29 05:58:47,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-29 05:58:47,927 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 4 states, 4 states have (on average 6.75) 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)
[2021-10-29 05:58:48,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 05:58:48,008 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions.
[2021-10-29 05:58:48,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-29 05:58:48,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) 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 24
[2021-10-29 05:58:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-29 05:58:48,010 INFO L225 Difference]: With dead ends: 178
[2021-10-29 05:58:48,011 INFO L226 Difference]: Without dead ends: 129
[2021-10-29 05:58:48,011 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-29 05:58:48,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states.
[2021-10-29 05:58:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76.
[2021-10-29 05:58:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.48) internal successors, (111), 75 states have internal predecessors, (111), 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)
[2021-10-29 05:58:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions.
[2021-10-29 05:58:48,039 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24
[2021-10-29 05:58:48,039 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-29 05:58:48,039 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions.
[2021-10-29 05:58:48,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) 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)
[2021-10-29 05:58:48,040 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions.
[2021-10-29 05:58:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-10-29 05:58:48,041 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-29 05:58:48,041 INFO L513 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]
[2021-10-29 05:58:48,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-10-29 05:58:48,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3
[2021-10-29 05:58:48,256 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-29 05:58:48,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 05:58:48,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1838136026, now seen corresponding path program 1 times
[2021-10-29 05:58:48,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2021-10-29 05:58:48,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083753071]
[2021-10-29 05:58:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 05:58:48,258 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-29 05:58:48,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat
[2021-10-29 05:58:48,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:48,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-10-29 05:58:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 05:58:48,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-10-29 05:58:48,481 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 05:58:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:48,564 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-10-29 05:58:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:48,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2021-10-29 05:58:48,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083753071]
[2021-10-29 05:58:48,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2083753071] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-29 05:58:48,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-29 05:58:48,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2021-10-29 05:58:48,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066918729]
[2021-10-29 05:58:48,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-10-29 05:58:48,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2021-10-29 05:58:48,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-29 05:58:48,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-29 05:58:48,627 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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)
[2021-10-29 05:58:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 05:58:48,703 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions.
[2021-10-29 05:58:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-10-29 05:58:48,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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
[2021-10-29 05:58:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-29 05:58:48,706 INFO L225 Difference]: With dead ends: 169
[2021-10-29 05:58:48,706 INFO L226 Difference]: Without dead ends: 99
[2021-10-29 05:58:48,707 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-29 05:58:48,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states.
[2021-10-29 05:58:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97.
[2021-10-29 05:58:48,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.4375) internal successors, (138), 96 states have internal predecessors, (138), 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)
[2021-10-29 05:58:48,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions.
[2021-10-29 05:58:48,730 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26
[2021-10-29 05:58:48,730 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-29 05:58:48,730 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions.
[2021-10-29 05:58:48,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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)
[2021-10-29 05:58:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions.
[2021-10-29 05:58:48,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-29 05:58:48,741 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-29 05:58:48,741 INFO L513 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]
[2021-10-29 05:58:48,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-10-29 05:58:48,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3
[2021-10-29 05:58:48,955 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-29 05:58:48,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 05:58:48,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1544213679, now seen corresponding path program 1 times
[2021-10-29 05:58:48,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2021-10-29 05:58:48,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396257851]
[2021-10-29 05:58:48,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 05:58:48,957 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-29 05:58:48,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat
[2021-10-29 05:58:48,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:48,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-10-29 05:58:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 05:58:49,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-10-29 05:58:49,181 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-29 05:58:49,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:49,307 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-10-29 05:58:49,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 05:58:49,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace
[2021-10-29 05:58:49,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396257851]
[2021-10-29 05:58:49,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396257851] provided 2 perfect and 0 imperfect interpolant sequences
[2021-10-29 05:58:49,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences.
[2021-10-29 05:58:49,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7
[2021-10-29 05:58:49,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378040672]
[2021-10-29 05:58:49,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-10-29 05:58:49,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS
[2021-10-29 05:58:49,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-29 05:58:49,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-10-29 05:58:49,435 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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)
[2021-10-29 05:58:50,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 05:58:50,003 INFO L93 Difference]: Finished difference Result 1073 states and 1567 transitions.
[2021-10-29 05:58:50,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-10-29 05:58:50,004 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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
[2021-10-29 05:58:50,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-29 05:58:50,011 INFO L225 Difference]: With dead ends: 1073
[2021-10-29 05:58:50,011 INFO L226 Difference]: Without dead ends: 982
[2021-10-29 05:58:50,013 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272
[2021-10-29 05:58:50,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states.
[2021-10-29 05:58:50,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 247.
[2021-10-29 05:58:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 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)
[2021-10-29 05:58:50,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions.
[2021-10-29 05:58:50,080 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 27
[2021-10-29 05:58:50,081 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-29 05:58:50,081 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions.
[2021-10-29 05:58:50,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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)
[2021-10-29 05:58:50,082 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions.
[2021-10-29 05:58:50,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-29 05:58:50,083 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-29 05:58:50,083 INFO L513 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]
[2021-10-29 05:58:50,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0
[2021-10-29 05:58:50,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3
[2021-10-29 05:58:50,297 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-29 05:58:50,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 05:58:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1050489875, now seen corresponding path program 1 times
[2021-10-29 05:58:50,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS
[2021-10-29 05:58:50,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518815675]
[2021-10-29 05:58:50,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 05:58:50,299 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-10-29 05:58:50,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat
[2021-10-29 05:58:50,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-10-29 05:58:50,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-10-29 05:58:51,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 05:58:51,611 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 05:58:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 05:58:52,798 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace
[2021-10-29 05:58:52,799 INFO L627 BasicCegarLoop]: Counterexample is feasible
[2021-10-29 05:58:52,800 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-29 05:58:52,812 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-29 05:58:52,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-29 05:58:52,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-10-29 05:58:53,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3
[2021-10-29 05:58:53,017 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1]
[2021-10-29 05:58:53,021 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-29 05:58:53,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:58:53 BoogieIcfgContainer
[2021-10-29 05:58:53,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-29 05:58:53,189 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-29 05:58:53,189 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-29 05:58:53,190 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-29 05:58:53,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:58:45" (3/4) ...
[2021-10-29 05:58:53,193 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-29 05:58:53,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/witness.graphml
[2021-10-29 05:58:53,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-29 05:58:53,321 INFO L168 Benchmark]: Toolchain (without parser) took 11196.86 ms. Allocated memory was 56.6 MB in the beginning and 90.2 MB in the end (delta: 33.6 MB). Free memory was 33.6 MB in the beginning and 61.6 MB in the end (delta: -28.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,322 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 56.6 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 55.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.25 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 35.9 MB in the end (delta: -2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.66 ms. Allocated memory is still 69.2 MB. Free memory was 35.7 MB in the beginning and 49.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,324 INFO L168 Benchmark]: Boogie Preprocessor took 68.43 ms. Allocated memory is still 69.2 MB. Free memory was 49.9 MB in the beginning and 46.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,324 INFO L168 Benchmark]: RCFGBuilder took 2849.66 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 46.7 MB in the beginning and 65.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,324 INFO L168 Benchmark]: TraceAbstraction took 7295.19 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 35.7 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,325 INFO L168 Benchmark]: Witness Printer took 130.19 ms. Allocated memory is still 90.2 MB. Free memory was 35.7 MB in the beginning and 61.6 MB in the end (delta: -25.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-29 05:58:53,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30 ms. Allocated memory is still 56.6 MB. Free memory was 37.5 MB in the beginning and 37.5 MB in the end (delta: 55.7 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 735.25 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 35.9 MB in the end (delta: -2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 110.66 ms. Allocated memory is still 69.2 MB. Free memory was 35.7 MB in the beginning and 49.9 MB in the end (delta: -14.2 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 68.43 ms. Allocated memory is still 69.2 MB. Free memory was 49.9 MB in the beginning and 46.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 2849.66 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 46.7 MB in the beginning and 65.0 MB in the end (delta: -18.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 7295.19 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 35.7 MB in the end (delta: 28.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB.
* Witness Printer took 130.19 ms. Allocated memory is still 90.2 MB. Free memory was 35.7 MB in the beginning and 61.6 MB in the end (delta: -25.9 MB). Peak memory consumption was 8.4 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: 54]: a call to reach_error is reachable
a call to reach_error is reachable
We found a FailurePath:
[L139] int waterLevel = 1;
[L140] int methaneLevelCritical = 0;
[L239] int pumpRunning = 0;
[L240] int systemActive = 1;
[L457] int cleanupTimeShifts = 4;
[L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0;
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L531] int retValue_acc ;
[L532] int tmp ;
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L88] int retValue_acc ;
[L91] retValue_acc = 1
[L92] return (retValue_acc);
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L538] tmp = valid_product()
[L540] COND TRUE \read(tmp)
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L555] int splverifierCounter ;
[L556] int tmp ;
[L557] int tmp___0 ;
[L558] int tmp___1 ;
[L559] int tmp___2 ;
[L562] splverifierCounter = 0
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L564] COND TRUE 1
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L566] COND TRUE splverifierCounter < 4
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L572] tmp = __VERIFIER_nondet_int()
[L574] COND TRUE \read(tmp)
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1]
[L157] COND TRUE waterLevel < 2
[L158] waterLevel = waterLevel + 1
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L582] tmp___0 = __VERIFIER_nondet_int()
[L584] COND FALSE !(\read(tmp___0))
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L592] tmp___2 = __VERIFIER_nondet_int()
[L594] COND FALSE !(\read(tmp___2))
[L600] tmp___1 = __VERIFIER_nondet_int()
[L602] COND TRUE \read(tmp___1)
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L437] COND FALSE !(\read(pumpRunning))
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2]
[L444] systemActive = 0
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L246] COND FALSE !(\read(pumpRunning))
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L253] COND FALSE !(\read(systemActive))
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L101] int tmp ;
[L102] int tmp___0 ;
[L103] int tmp___1 ;
[L178] int retValue_acc ;
[L181] retValue_acc = methaneLevelCritical
[L182] return (retValue_acc);
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L107] tmp = isMethaneLevelCritical()
[L109] COND FALSE !(\read(tmp))
[L210] int retValue_acc ;
[L213] retValue_acc = waterLevel
[L214] return (retValue_acc);
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L113] tmp___0 = getWaterLevel()
[L115] COND TRUE tmp___0 == 2
[L370] int retValue_acc ;
[L373] retValue_acc = pumpRunning
[L374] return (retValue_acc);
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L117] tmp___1 = isPumpRunning()
[L119] COND FALSE !(\read(tmp___1))
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
[L54] reach_error()
VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2]
- UnprovableResult [Line: 54]: 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: 54]: 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, 137 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 558 SDtfs, 1064 SDslu, 1397 SDs, 0 SdLazy, 201 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 790 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 4 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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!
[2021-10-29 05:58:53,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0871c358-0d40-442d-b189-369fe3c0a81c/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...