./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.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_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/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_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/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_64202310-525a-4931-adc3-78bf9153a5e3/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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f ............................................................................................................................................ 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_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/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_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/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_64202310-525a-4931-adc3-78bf9153a5e3/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 c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:46:22,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:46:22,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:46:22,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:46:22,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:46:22,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:46:22,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:46:22,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:46:22,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:46:22,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:46:22,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:46:22,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:46:22,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:46:22,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:46:22,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:46:22,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:46:22,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:46:22,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:46:22,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:46:22,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:46:22,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:46:23,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:46:23,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:46:23,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:46:23,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:46:23,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:46:23,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:46:23,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:46:23,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:46:23,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:46:23,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:46:23,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:46:23,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:46:23,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:46:23,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:46:23,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:46:23,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:46:23,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:46:23,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:46:23,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:46:23,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:46:23,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:46:23,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:46:23,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:46:23,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:46:23,089 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:46:23,089 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:46:23,089 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:46:23,090 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:46:23,090 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:46:23,097 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:46:23,098 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:46:23,099 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:46:23,099 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:46:23,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:46:23,100 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:46:23,100 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:46:23,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:46:23,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:46:23,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:46:23,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:46:23,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:46:23,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:46:23,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:46:23,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:46:23,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:46:23,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:46:23,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:46:23,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:46:23,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:46:23,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:46:23,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:46:23,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:46:23,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:46:23,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:46:23,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:46:23,107 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:46:23,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:46:23,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:46:23,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:46:23,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:46:23,108 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_64202310-525a-4931-adc3-78bf9153a5e3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2021-10-29 04:46:23,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:46:23,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:46:23,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:46:23,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:46:23,444 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:46:23,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-29 04:46:23,512 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/36bbb55f2/4e2b50d3a84347a4b246c688bf452705/FLAG277386361 [2021-10-29 04:46:24,242 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:46:24,253 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-29 04:46:24,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/36bbb55f2/4e2b50d3a84347a4b246c688bf452705/FLAG277386361 [2021-10-29 04:46:24,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/36bbb55f2/4e2b50d3a84347a4b246c688bf452705 [2021-10-29 04:46:24,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:46:24,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:46:24,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:46:24,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:46:24,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:46:24,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:24" (1/1) ... [2021-10-29 04:46:24,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@824a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:24, skipping insertion in model container [2021-10-29 04:46:24,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:24" (1/1) ... [2021-10-29 04:46:24,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:46:24,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:46:24,794 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_64202310-525a-4931-adc3-78bf9153a5e3/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-29 04:46:24,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:24,811 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 04:46:24,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5276e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:24, skipping insertion in model container [2021-10-29 04:46:24,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:46:24,814 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:46:24,818 INFO L168 Benchmark]: Toolchain (without parser) took 529.02 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 42.3 MB in the beginning and 73.4 MB in the end (delta: -31.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:24,820 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:46:24,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.35 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 42.2 MB in the beginning and 73.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:24,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.35 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 42.2 MB in the beginning and 73.4 MB in the end (delta: -31.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 182]: 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 04:46:27,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:46:27,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:46:27,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:46:27,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:46:27,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:46:27,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:46:27,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:46:27,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:46:27,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:46:27,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:46:27,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:46:27,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:46:27,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:46:27,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:46:27,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:46:27,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:46:27,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:46:27,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:46:27,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:46:27,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:46:27,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:46:27,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:46:27,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:46:27,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:46:27,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:46:27,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:46:27,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:46:27,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:46:27,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:46:27,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:46:27,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:46:27,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:46:27,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:46:27,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:46:27,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:46:27,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:46:27,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:46:27,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:46:27,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:46:27,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:46:27,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:46:27,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:46:27,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:46:27,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:46:27,543 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:46:27,543 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:46:27,543 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:46:27,543 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:46:27,544 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:46:27,544 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:46:27,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:46:27,545 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:46:27,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:46:27,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:46:27,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:46:27,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:46:27,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:46:27,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:46:27,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:46:27,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:46:27,548 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:46:27,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:46:27,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:46:27,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:46:27,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:46:27,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:46:27,549 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:46:27,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:46:27,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:46:27,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:46:27,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:46:27,551 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:46:27,551 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:46:27,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:46:27,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:46:27,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:46:27,552 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_64202310-525a-4931-adc3-78bf9153a5e3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0bb085f1a2e359e53f6064743019c071065ce678b1651991605b55849e9a12f [2021-10-29 04:46:27,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:46:27,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:46:27,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:46:27,995 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:46:27,996 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:46:27,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-29 04:46:28,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/95c972936/163782db115247fd952fecae2cf5536e/FLAG12436e4c5 [2021-10-29 04:46:28,708 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:46:28,709 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c [2021-10-29 04:46:28,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/95c972936/163782db115247fd952fecae2cf5536e/FLAG12436e4c5 [2021-10-29 04:46:28,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/data/95c972936/163782db115247fd952fecae2cf5536e [2021-10-29 04:46:28,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:46:28,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:46:28,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:46:28,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:46:28,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:46:28,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:28" (1/1) ... [2021-10-29 04:46:28,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36fc71af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:28, skipping insertion in model container [2021-10-29 04:46:28,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:28" (1/1) ... [2021-10-29 04:46:29,005 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:46:29,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:46:29,433 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_64202310-525a-4931-adc3-78bf9153a5e3/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-29 04:46:29,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:29,467 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:46:29,479 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:46:29,599 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_64202310-525a-4931-adc3-78bf9153a5e3/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-29 04:46:29,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:29,612 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:46:29,724 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_64202310-525a-4931-adc3-78bf9153a5e3/sv-benchmarks/c/product-lines/minepump_spec3_product56.cil.c[19275,19288] [2021-10-29 04:46:29,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:29,769 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:46:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29 WrapperNode [2021-10-29 04:46:29,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:46:29,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:46:29,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:46:29,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:46:29,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:29,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:29,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:46:29,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:46:29,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:46:29,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:46:29,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:29,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:29,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:29,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:29,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:30,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:30,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:30,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:46:30,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:46:30,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:46:30,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:46:30,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (1/1) ... [2021-10-29 04:46:30,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:46:30,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:46:30,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:46:30,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:46:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:46:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:46:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:46:30,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:46:33,242 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:46:33,242 INFO L299 CfgBuilder]: Removed 288 assume(true) statements. [2021-10-29 04:46:33,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:33 BoogieIcfgContainer [2021-10-29 04:46:33,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:46:33,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:46:33,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:46:33,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:46:33,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:46:28" (1/3) ... [2021-10-29 04:46:33,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29955422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:33, skipping insertion in model container [2021-10-29 04:46:33,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:29" (2/3) ... [2021-10-29 04:46:33,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29955422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:33, skipping insertion in model container [2021-10-29 04:46:33,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:33" (3/3) ... [2021-10-29 04:46:33,263 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2021-10-29 04:46:33,269 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:46:33,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:46:33,352 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:46:33,360 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 04:46:33,360 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:46:33,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 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 04:46:33,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:46:33,395 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:33,396 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 04:46:33,396 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 04:46:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:33,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2021-10-29 04:46:33,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:33,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [192024876] [2021-10-29 04:46:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:33,421 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:33,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:33,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:33,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:46:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:33,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:46:33,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:33,765 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 04:46:33,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:33,852 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 04:46:33,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:33,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [192024876] [2021-10-29 04:46:33,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [192024876] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:33,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:33,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:46:33,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507314560] [2021-10-29 04:46:33,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:46:33,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:33,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:46:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:46:33,895 INFO L87 Difference]: Start difference. First operand has 197 states, 193 states have (on average 1.5544041450777202) internal successors, (300), 196 states have internal predecessors, (300), 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 04:46:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:33,995 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2021-10-29 04:46:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:46:33,997 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 04:46:33,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:34,018 INFO L225 Difference]: With dead ends: 388 [2021-10-29 04:46:34,019 INFO L226 Difference]: Without dead ends: 193 [2021-10-29 04:46:34,025 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 04:46:34,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-10-29 04:46:34,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2021-10-29 04:46:34,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 190 states have (on average 1.5157894736842106) internal successors, (288), 192 states have internal predecessors, (288), 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 04:46:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2021-10-29 04:46:34,089 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2021-10-29 04:46:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:34,090 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2021-10-29 04:46:34,090 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 04:46:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2021-10-29 04:46:34,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:46:34,092 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:34,093 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 04:46:34,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:34,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:34,298 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 04:46:34,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:34,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2021-10-29 04:46:34,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:34,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320959594] [2021-10-29 04:46:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:34,301 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:34,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:34,303 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:34,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:46:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:34,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:34,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:34,583 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 04:46:34,583 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:34,661 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 04:46:34,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:34,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320959594] [2021-10-29 04:46:34,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320959594] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:34,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:34,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:46:34,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785858520] [2021-10-29 04:46:34,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:34,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:34,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:34,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:34,670 INFO L87 Difference]: Start difference. First operand 193 states and 288 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 04:46:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:34,707 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2021-10-29 04:46:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:34,708 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 04:46:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:34,712 INFO L225 Difference]: With dead ends: 193 [2021-10-29 04:46:34,712 INFO L226 Difference]: Without dead ends: 75 [2021-10-29 04:46:34,716 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 04:46:34,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-29 04:46:34,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-10-29 04:46:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.5) internal successors, (111), 74 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 04:46:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2021-10-29 04:46:34,730 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2021-10-29 04:46:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:34,730 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2021-10-29 04:46:34,731 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 04:46:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2021-10-29 04:46:34,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:46:34,733 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:34,739 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 04:46:34,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:34,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:34,956 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 04:46:34,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:34,956 INFO L85 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2021-10-29 04:46:34,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:34,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699982261] [2021-10-29 04:46:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:34,958 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:34,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:34,963 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:34,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:46:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:35,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:35,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:35,265 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 04:46:35,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:35,334 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 04:46:35,334 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:35,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699982261] [2021-10-29 04:46:35,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699982261] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:35,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:35,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:46:35,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130315298] [2021-10-29 04:46:35,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:35,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:35,341 INFO L87 Difference]: Start difference. First operand 75 states and 111 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 04:46:35,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:35,410 INFO L93 Difference]: Finished difference Result 238 states and 358 transitions. [2021-10-29 04:46:35,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:46:35,411 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 04:46:35,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:35,413 INFO L225 Difference]: With dead ends: 238 [2021-10-29 04:46:35,413 INFO L226 Difference]: Without dead ends: 169 [2021-10-29 04:46:35,414 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 04:46:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-10-29 04:46:35,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 96. [2021-10-29 04:46:35,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 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 04:46:35,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2021-10-29 04:46:35,449 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2021-10-29 04:46:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:35,450 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2021-10-29 04:46:35,451 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 04:46:35,451 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2021-10-29 04:46:35,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:46:35,459 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:35,459 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 04:46:35,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:35,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:35,676 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 04:46:35,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:35,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2021-10-29 04:46:35,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:35,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084776915] [2021-10-29 04:46:35,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:35,677 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:35,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:35,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:35,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:46:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:35,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:35,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:36,055 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 04:46:36,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:36,118 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 04:46:36,118 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:36,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084776915] [2021-10-29 04:46:36,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084776915] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:36,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:36,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:46:36,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470912455] [2021-10-29 04:46:36,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:46:36,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:36,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:46:36,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:46:36,121 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 04:46:36,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:36,198 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2021-10-29 04:46:36,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:36,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-29 04:46:36,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:36,200 INFO L225 Difference]: With dead ends: 197 [2021-10-29 04:46:36,200 INFO L226 Difference]: Without dead ends: 107 [2021-10-29 04:46:36,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 04:46:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-29 04:46:36,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2021-10-29 04:46:36,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.4423076923076923) internal successors, (150), 104 states have internal predecessors, (150), 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 04:46:36,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2021-10-29 04:46:36,213 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2021-10-29 04:46:36,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:36,214 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2021-10-29 04:46:36,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 04:46:36,214 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2021-10-29 04:46:36,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:46:36,215 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:36,215 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 04:46:36,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:36,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:36,430 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 04:46:36,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:36,430 INFO L85 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2021-10-29 04:46:36,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:36,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843945370] [2021-10-29 04:46:36,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:36,432 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:36,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:36,433 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:36,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:46:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:36,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:46:36,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:36,873 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 04:46:36,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:37,020 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 04:46:37,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:37,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843945370] [2021-10-29 04:46:37,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843945370] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:37,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:37,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 04:46:37,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808508409] [2021-10-29 04:46:37,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:46:37,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:37,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:46:37,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:46:37,024 INFO L87 Difference]: Start difference. First operand 105 states and 150 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 04:46:37,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:37,643 INFO L93 Difference]: Finished difference Result 1171 states and 1714 transitions. [2021-10-29 04:46:37,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:46:37,644 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 04:46:37,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:37,652 INFO L225 Difference]: With dead ends: 1171 [2021-10-29 04:46:37,652 INFO L226 Difference]: Without dead ends: 1072 [2021-10-29 04:46:37,653 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 04:46:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2021-10-29 04:46:37,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 261. [2021-10-29 04:46:37,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.4153846153846155) internal successors, (368), 260 states have internal predecessors, (368), 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 04:46:37,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 368 transitions. [2021-10-29 04:46:37,701 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 368 transitions. Word has length 27 [2021-10-29 04:46:37,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:37,702 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 368 transitions. [2021-10-29 04:46:37,702 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 04:46:37,702 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 368 transitions. [2021-10-29 04:46:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:46:37,703 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:37,704 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 04:46:37,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-29 04:46:37,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:37,910 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 04:46:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2021-10-29 04:46:37,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:37,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395504552] [2021-10-29 04:46:37,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:37,912 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:37,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:37,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:37,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:46:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:46:39,424 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:46:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:46:40,848 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:46:40,848 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:46:40,849 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:40,851 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:40,852 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:40,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:41,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:41,082 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-29 04:46:41,086 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:46:41,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:46:41 BoogieIcfgContainer [2021-10-29 04:46:41,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:46:41,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:46:41,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:46:41,276 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:46:41,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:33" (3/4) ... [2021-10-29 04:46:41,279 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:46:41,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:46:41,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:46:41,412 INFO L168 Benchmark]: Toolchain (without parser) took 12421.50 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 54.8 MB in the beginning and 97.8 MB in the end (delta: -43.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,413 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 72.2 MB in the beginning and 72.2 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:46:41,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.50 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 59.6 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.52 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 54.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,414 INFO L168 Benchmark]: Boogie Preprocessor took 98.58 ms. Allocated memory is still 90.2 MB. Free memory was 54.8 MB in the beginning and 51.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,415 INFO L168 Benchmark]: RCFGBuilder took 3233.54 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 51.1 MB in the beginning and 80.5 MB in the end (delta: -29.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,415 INFO L168 Benchmark]: TraceAbstraction took 8019.23 ms. Allocated memory is still 121.6 MB. Free memory was 79.8 MB in the beginning and 41.2 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,416 INFO L168 Benchmark]: Witness Printer took 124.81 ms. Allocated memory is still 121.6 MB. Free memory was 41.2 MB in the beginning and 97.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:41,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory was 72.2 MB in the beginning and 72.2 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 788.50 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 59.6 MB in the end (delta: -5.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.52 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 54.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.58 ms. Allocated memory is still 90.2 MB. Free memory was 54.8 MB in the beginning and 51.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3233.54 ms. Allocated memory was 90.2 MB in the beginning and 121.6 MB in the end (delta: 31.5 MB). Free memory was 51.1 MB in the beginning and 80.5 MB in the end (delta: -29.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8019.23 ms. Allocated memory is still 121.6 MB. Free memory was 79.8 MB in the beginning and 41.2 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * Witness Printer took 124.81 ms. Allocated memory is still 121.6 MB. Free memory was 41.2 MB in the beginning and 97.8 MB in the end (delta: -56.6 MB). Peak memory consumption was 10.5 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: 1023]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int waterLevel = 1; [L598] int methaneLevelCritical = 0; [L704] int pumpRunning = 0; [L705] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L131] int retValue_acc ; [L132] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int retValue_acc ; [L549] retValue_acc = 1 [L550] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L951] int splverifierCounter ; [L952] int tmp ; [L953] int tmp___0 ; [L954] int tmp___1 ; [L955] int tmp___2 ; [L958] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L960] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L962] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L968] tmp = __VERIFIER_nondet_int() [L970] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] COND TRUE waterLevel < 2 [L616] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___0 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L988] tmp___2 = __VERIFIER_nondet_int() [L990] COND FALSE !(\read(tmp___2)) [L996] tmp___1 = __VERIFIER_nondet_int() [L998] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L930] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L711] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L718] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L562] int tmp___1 ; [L636] int retValue_acc ; [L639] retValue_acc = methaneLevelCritical [L640] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp = isMethaneLevelCritical() [L568] COND FALSE !(\read(tmp)) [L668] int retValue_acc ; [L671] retValue_acc = waterLevel [L672] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L844] int retValue_acc ; [L847] retValue_acc = pumpRunning [L848] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1023] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 1023]: 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: 1023]: 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, 197 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 744 SDtfs, 1773 SDslu, 1289 SDs, 0 SdLazy, 225 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=261occurred 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, 886 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 4 NumberOfNonLiveVariables, 998 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 04:46:41,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64202310-525a-4931-adc3-78bf9153a5e3/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...