./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw --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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 ............................................................................................................................................ 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw --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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:54:12,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:54:12,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:54:12,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:54:12,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:54:12,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:54:12,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:54:12,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:54:12,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:54:12,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:54:12,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:54:12,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:54:12,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:54:12,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:54:12,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:54:12,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:54:12,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:54:12,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:54:12,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:54:12,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:54:12,933 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:54:12,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:54:12,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:54:12,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:54:12,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:54:12,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:54:12,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:54:12,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:54:12,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:54:12,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:54:12,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:54:12,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:54:12,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:54:12,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:54:12,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:54:12,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:54:12,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:54:12,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:54:12,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:54:12,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:54:12,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:54:12,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:54:13,012 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:54:13,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:54:13,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:54:13,015 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:54:13,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:54:13,015 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:54:13,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:54:13,015 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:54:13,016 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:54:13,016 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:54:13,023 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:54:13,023 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:54:13,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:54:13,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:54:13,024 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:54:13,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:54:13,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:54:13,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:54:13,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:54:13,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:54:13,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:54:13,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:54:13,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:54:13,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:54:13,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:54:13,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:54:13,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:54:13,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:54:13,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:54:13,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:54:13,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:54:13,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:54:13,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:54:13,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:54:13,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:54:13,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:54:13,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:54:13,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:54:13,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:54:13,030 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2021-10-20 05:54:13,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:54:13,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:54:13,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:54:13,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:54:13,315 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:54:13,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-20 05:54:13,398 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/438a5d711/42e02e6d403f4ae48276e351f924c260/FLAGe495c62ab [2021-10-20 05:54:13,911 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:54:13,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-20 05:54:13,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/438a5d711/42e02e6d403f4ae48276e351f924c260/FLAGe495c62ab [2021-10-20 05:54:14,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/438a5d711/42e02e6d403f4ae48276e351f924c260 [2021-10-20 05:54:14,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:54:14,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:54:14,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:14,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:54:14,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:54:14,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:14" (1/1) ... [2021-10-20 05:54:14,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d3a6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:14, skipping insertion in model container [2021-10-20 05:54:14,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:14" (1/1) ... [2021-10-20 05:54:14,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:54:14,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:54:14,642 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-20 05:54:14,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:54:14,691 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) [2021-10-20 05:54:14,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23905ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:14, skipping insertion in model container [2021-10-20 05:54:14,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:14,692 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:54:14,695 INFO L168 Benchmark]: Toolchain (without parser) took 477.99 ms. Allocated memory is still 117.4 MB. Free memory was 79.1 MB in the beginning and 89.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:14,696 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 117.4 MB. Free memory was 96.9 MB in the beginning and 96.8 MB in the end (delta: 51.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:54:14,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.44 ms. Allocated memory is still 117.4 MB. Free memory was 78.9 MB in the beginning and 89.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:14,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 117.4 MB. Free memory was 96.9 MB in the beginning and 96.8 MB in the end (delta: 51.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.44 ms. Allocated memory is still 117.4 MB. Free memory was 78.9 MB in the beginning and 89.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 78]: 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-e943c26 [2021-10-20 05:54:16,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:54:16,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:54:17,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:54:17,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:54:17,005 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:54:17,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:54:17,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:54:17,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:54:17,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:54:17,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:54:17,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:54:17,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:54:17,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:54:17,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:54:17,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:54:17,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:54:17,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:54:17,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:54:17,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:54:17,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:54:17,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:54:17,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:54:17,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:54:17,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:54:17,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:54:17,067 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:54:17,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:54:17,070 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:54:17,071 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:54:17,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:54:17,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:54:17,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:54:17,075 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:54:17,076 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:54:17,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:54:17,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:54:17,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:54:17,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:54:17,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:54:17,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:54:17,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:54:17,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:54:17,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:54:17,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:54:17,127 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:54:17,127 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:54:17,127 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:54:17,128 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:54:17,128 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:54:17,128 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:54:17,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:54:17,130 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:54:17,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:54:17,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:54:17,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:54:17,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:54:17,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:54:17,131 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:54:17,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:54:17,132 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:54:17,132 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:54:17,132 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:54:17,132 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:54:17,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:54:17,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:54:17,133 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:54:17,133 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:54:17,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:54:17,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:54:17,134 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:54:17,134 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:54:17,134 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:54:17,134 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:54:17,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:54:17,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:54:17,135 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:54:17,135 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2021-10-20 05:54:17,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:54:17,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:54:17,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:54:17,596 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:54:17,596 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:54:17,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-20 05:54:17,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/d4873977d/153bebf90d874cfb807ceb357da09fe7/FLAG207b09d5c [2021-10-20 05:54:18,343 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:54:18,346 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-20 05:54:18,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/d4873977d/153bebf90d874cfb807ceb357da09fe7/FLAG207b09d5c [2021-10-20 05:54:18,687 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/data/d4873977d/153bebf90d874cfb807ceb357da09fe7 [2021-10-20 05:54:18,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:54:18,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:54:18,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:18,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:54:18,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:54:18,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:18" (1/1) ... [2021-10-20 05:54:18,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc473b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:18, skipping insertion in model container [2021-10-20 05:54:18,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:54:18" (1/1) ... [2021-10-20 05:54:18,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:54:18,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:54:19,060 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-20 05:54:19,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:54:19,126 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:54:19,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:54:19,233 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-20 05:54:19,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:54:19,273 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:54:19,352 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_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-20 05:54:19,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:54:19,399 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:54:19,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19 WrapperNode [2021-10-20 05:54:19,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:54:19,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:54:19,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:54:19,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:54:19,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:54:19,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:54:19,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:54:19,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:54:19,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:54:19,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:54:19,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:54:19,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:54:19,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (1/1) ... [2021-10-20 05:54:19,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:54:19,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:54:19,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:54:19,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:54:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:54:19,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:54:19,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:54:19,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:54:21,860 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:54:21,861 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2021-10-20 05:54:21,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:21 BoogieIcfgContainer [2021-10-20 05:54:21,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:54:21,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:54:21,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:54:21,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:54:21,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:54:18" (1/3) ... [2021-10-20 05:54:21,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa29738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:21, skipping insertion in model container [2021-10-20 05:54:21,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:54:19" (2/3) ... [2021-10-20 05:54:21,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa29738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:54:21, skipping insertion in model container [2021-10-20 05:54:21,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:21" (3/3) ... [2021-10-20 05:54:21,871 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-10-20 05:54:21,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:54:21,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:54:21,924 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:54:21,929 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 [2021-10-20 05:54:21,930 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:54:21,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:54:21,972 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:54:21,973 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:54:21,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:54:21,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:54:21,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2021-10-20 05:54:21,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:54:21,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521666789] [2021-10-20 05:54:21,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:54:21,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:54:21,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:54:21,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:54:22,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:54:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:54:22,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:54:22,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:54:22,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:22,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:54:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:22,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:54:22,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521666789] [2021-10-20 05:54:22,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [521666789] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:54:22,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:54:22,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:54:22,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786209448] [2021-10-20 05:54:22,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:54:22,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:54:22,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:54:22,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:54:22,398 INFO L87 Difference]: Start difference. First operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:22,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:54:22,430 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2021-10-20 05:54:22,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:54:22,431 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 [2021-10-20 05:54:22,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:54:22,442 INFO L225 Difference]: With dead ends: 280 [2021-10-20 05:54:22,442 INFO L226 Difference]: Without dead ends: 139 [2021-10-20 05:54:22,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:54:22,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-20 05:54:22,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-10-20 05:54:22,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:22,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2021-10-20 05:54:22,489 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2021-10-20 05:54:22,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:54:22,489 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2021-10-20 05:54:22,490 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) [2021-10-20 05:54:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2021-10-20 05:54:22,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:54:22,491 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:54:22,491 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:54:22,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:54:22,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:54:22,704 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:54:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:54:22,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2021-10-20 05:54:22,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:54:22,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752550128] [2021-10-20 05:54:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:54:22,706 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:54:22,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:54:22,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:54:22,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:54:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:54:22,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:54:22,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:54:23,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:23,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:54:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:23,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:54:23,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752550128] [2021-10-20 05:54:23,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752550128] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:54:23,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:54:23,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:54:23,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137238867] [2021-10-20 05:54:23,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:54:23,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:54:23,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:54:23,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:54:23,165 INFO L87 Difference]: Start difference. First operand 139 states and 201 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) [2021-10-20 05:54:23,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:54:23,186 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2021-10-20 05:54:23,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:54:23,187 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 [2021-10-20 05:54:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:54:23,191 INFO L225 Difference]: With dead ends: 139 [2021-10-20 05:54:23,191 INFO L226 Difference]: Without dead ends: 57 [2021-10-20 05:54:23,192 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:54:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-20 05:54:23,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-20 05:54:23,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2021-10-20 05:54:23,212 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2021-10-20 05:54:23,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:54:23,214 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-20 05:54:23,214 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) [2021-10-20 05:54:23,214 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2021-10-20 05:54:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 05:54:23,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:54:23,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:54:23,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:54:23,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:54:23,437 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:54:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:54:23,438 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2021-10-20 05:54:23,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:54:23,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430868112] [2021-10-20 05:54:23,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:54:23,439 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:54:23,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:54:23,440 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:54:23,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:54:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:54:23,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:54:23,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:54:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:23,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:54:23,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:23,857 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:54:23,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430868112] [2021-10-20 05:54:23,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430868112] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:54:23,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:54:23,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-20 05:54:23,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738682104] [2021-10-20 05:54:23,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:54:23,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:54:23,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:54:23,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:54:23,866 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-20 05:54:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:54:23,911 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2021-10-20 05:54:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:54:23,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 [2021-10-20 05:54:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:54:23,913 INFO L225 Difference]: With dead ends: 184 [2021-10-20 05:54:23,913 INFO L226 Difference]: Without dead ends: 133 [2021-10-20 05:54:23,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:54:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-20 05:54:23,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2021-10-20 05:54:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2021-10-20 05:54:23,929 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2021-10-20 05:54:23,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:54:23,929 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2021-10-20 05:54:23,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-20 05:54:23,930 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2021-10-20 05:54:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 05:54:23,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:54:23,933 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:54:23,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:54:24,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:54:24,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:54:24,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:54:24,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2021-10-20 05:54:24,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:54:24,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928159020] [2021-10-20 05:54:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:54:24,147 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:54:24,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:54:24,148 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:54:24,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:54:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:54:24,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:54:24,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:54:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:24,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:54:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:24,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:54:24,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928159020] [2021-10-20 05:54:24,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928159020] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:54:24,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:54:24,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:54:24,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632212940] [2021-10-20 05:54:24,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:54:24,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:54:24,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:54:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:54:24,503 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:54:24,582 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2021-10-20 05:54:24,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:54:24,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-20 05:54:24,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:54:24,598 INFO L225 Difference]: With dead ends: 173 [2021-10-20 05:54:24,598 INFO L226 Difference]: Without dead ends: 101 [2021-10-20 05:54:24,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:54:24,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-20 05:54:24,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-10-20 05:54:24,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-10-20 05:54:24,610 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2021-10-20 05:54:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:54:24,611 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-10-20 05:54:24,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:54:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-10-20 05:54:24,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 05:54:24,612 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:54:24,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:54:24,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:54:24,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:54:24,825 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:54:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:54:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2021-10-20 05:54:24,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:54:24,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801043353] [2021-10-20 05:54:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:54:24,826 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:54:24,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:54:24,827 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:54:24,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:54:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:54:25,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:54:25,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:54:25,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:25,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:54:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:54:25,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:54:25,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801043353] [2021-10-20 05:54:25,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801043353] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:54:25,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:54:25,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:54:25,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557238850] [2021-10-20 05:54:25,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:54:25,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:54:25,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:54:25,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:54:25,285 INFO L87 Difference]: Start difference. First operand 99 states and 141 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) [2021-10-20 05:54:25,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:54:25,745 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2021-10-20 05:54:25,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-20 05:54:25,746 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 [2021-10-20 05:54:25,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:54:25,752 INFO L225 Difference]: With dead ends: 1099 [2021-10-20 05:54:25,752 INFO L226 Difference]: Without dead ends: 1006 [2021-10-20 05:54:25,753 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 150.7ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:54:25,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-20 05:54:25,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2021-10-20 05:54:25,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.412) internal successors, (353), 250 states have internal predecessors, (353), 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) [2021-10-20 05:54:25,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2021-10-20 05:54:25,817 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2021-10-20 05:54:25,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:54:25,818 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2021-10-20 05:54:25,818 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) [2021-10-20 05:54:25,818 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2021-10-20 05:54:25,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-20 05:54:25,822 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:54:25,822 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:54:25,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:54:26,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:54:26,043 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:54:26,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:54:26,043 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2021-10-20 05:54:26,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:54:26,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898820638] [2021-10-20 05:54:26,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:54:26,044 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:54:26,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:54:26,045 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:54:26,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:54:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:54:27,193 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:54:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:54:28,406 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:54:28,406 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:54:28,407 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:54:28,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:54:28,409 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:54:28,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-20 05:54:28,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:54:28,648 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:54:28,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:54:28 BoogieIcfgContainer [2021-10-20 05:54:28,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:54:28,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:54:28,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:54:28,761 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:54:28,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:54:21" (3/4) ... [2021-10-20 05:54:28,763 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:54:28,882 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:54:28,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:54:28,885 INFO L168 Benchmark]: Toolchain (without parser) took 10192.47 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 39.0 MB in the beginning and 76.7 MB in the end (delta: -37.7 MB). Peak memory consumption was 40.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,885 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:54:28,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.50 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 27.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.29 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 27.6 MB in the beginning and 53.9 MB in the end (delta: -26.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,887 INFO L168 Benchmark]: Boogie Preprocessor took 101.99 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 50.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,887 INFO L168 Benchmark]: RCFGBuilder took 2232.73 ms. Allocated memory is still 73.4 MB. Free memory was 50.9 MB in the beginning and 35.9 MB in the end (delta: 15.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,887 INFO L168 Benchmark]: TraceAbstraction took 6893.94 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 32.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,888 INFO L168 Benchmark]: Witness Printer took 124.02 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 32.0 MB in the beginning and 76.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:54:28,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 706.50 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 27.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.29 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 27.6 MB in the beginning and 53.9 MB in the end (delta: -26.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 101.99 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 50.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2232.73 ms. Allocated memory is still 73.4 MB. Free memory was 50.9 MB in the beginning and 35.9 MB in the end (delta: 15.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6893.94 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 35.4 MB in the beginning and 32.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * Witness Printer took 124.02 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 32.0 MB in the beginning and 76.7 MB in the end (delta: -44.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L722] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L728] tmp = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] COND TRUE waterLevel < 2 [L443] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___2)) [L754] tmp___1 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L997] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L1004] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L786] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L793] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L679] tmp___0 = getWaterLevel() [L681] COND TRUE tmp___0 == 2 [L911] int retValue_acc ; [L914] retValue_acc = pumpRunning [L915] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L683] tmp___1 = isPumpRunning() [L685] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L704] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 704]: 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: 704]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6724.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 37.3ms, AutomataDifference: 708.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 578 SDtfs, 1486 SDslu, 1049 SDs, 0 SdLazy, 172 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 214.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 182.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 138.4ms AutomataMinimizationTime, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 165.9ms SsaConstructionTime, 1640.5ms SatisfiabilityAnalysisTime, 991.9ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 995 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! [2021-10-20 05:54:28,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaece4fc-0793-4c8d-af4c-0ce79acd4eb0/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...