./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI --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 ae87ed11769153d118b606184b0208d26c3c2750 ............................................................................................................................................ 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI --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 ae87ed11769153d118b606184b0208d26c3c2750 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:04,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:04,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:04,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:04,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:04,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:04,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:04,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:04,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:04,961 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:04,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:04,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:04,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:04,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:04,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:04,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:04,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:04,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:04,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:04,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:04,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:04,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:04,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:04,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:04,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:04,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:04,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:04,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:04,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:04,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:04,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:04,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:04,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:04,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:04,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:04,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:04,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:04,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:04,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:04,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:04,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:05,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:05,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:05,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:05,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:05,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:05,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:05,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:05,040 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:05,040 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:05,041 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:05,041 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:05,042 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:05,042 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:05,043 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:05,043 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:05,044 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:05,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:05,045 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:05,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:05,046 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:05,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:05,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:05,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:05,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:05,049 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:05,049 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:05,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:05,050 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:05,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:05,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:05,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:05,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:05,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:05,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:05,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:05,054 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:05,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:05,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:05,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:05,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:05,056 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae87ed11769153d118b606184b0208d26c3c2750 [2021-10-11 02:29:05,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:05,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:05,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:05,395 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:05,396 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:05,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-11 02:29:05,467 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/eb1da954d/5f7777dc038c4259bbc7ad64a87c7a1a/FLAG0407a3939 [2021-10-11 02:29:05,905 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:05,919 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-11 02:29:05,941 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/eb1da954d/5f7777dc038c4259bbc7ad64a87c7a1a/FLAG0407a3939 [2021-10-11 02:29:06,248 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/eb1da954d/5f7777dc038c4259bbc7ad64a87c7a1a [2021-10-11 02:29:06,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:06,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:06,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:06,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:06,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:06,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:06" (1/1) ... [2021-10-11 02:29:06,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92e21b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:06, skipping insertion in model container [2021-10-11 02:29:06,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:06" (1/1) ... [2021-10-11 02:29:06,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:06,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:06,583 WARN L226 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-10-11 02:29:06,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:06,727 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) [2021-10-11 02:29:06,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7391a3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:06, skipping insertion in model container [2021-10-11 02:29:06,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:06,730 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:29:06,734 INFO L168 Benchmark]: Toolchain (without parser) took 477.54 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 111.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,735 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 56.0 MB in the beginning and 56.0 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:06,738 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.15 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 111.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:06,740 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 83.9 MB. Free memory was 56.0 MB in the beginning and 56.0 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 474.15 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 111.6 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 565]: 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 0.2.0-7b2dab5 [2021-10-11 02:29:09,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:09,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:09,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:09,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:09,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:09,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:09,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:09,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:09,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:09,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:09,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:09,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:09,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:09,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:09,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:09,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:09,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:09,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:09,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:09,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:09,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:09,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:09,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:09,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:09,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:09,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:09,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:09,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:09,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:09,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:09,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:09,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:09,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:09,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:09,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:09,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:09,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:09,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:09,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:09,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:09,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:09,387 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:09,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:09,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:09,389 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:09,390 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:09,390 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:09,390 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:09,391 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:09,391 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:09,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:09,394 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:09,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:09,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:09,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:09,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:09,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:09,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:09,396 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:09,396 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:09,397 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:09,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:09,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:09,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:09,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:09,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:09,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:09,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:09,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:09,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:09,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:09,400 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:09,400 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:09,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:09,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:09,401 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:09,401 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae87ed11769153d118b606184b0208d26c3c2750 [2021-10-11 02:29:09,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:09,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:09,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:09,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:09,832 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:09,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-11 02:29:09,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/716fab09f/c8637cec3bce495fb667d4a3b424a4d4/FLAG0ace74178 [2021-10-11 02:29:10,511 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:10,512 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-11 02:29:10,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/716fab09f/c8637cec3bce495fb667d4a3b424a4d4/FLAG0ace74178 [2021-10-11 02:29:10,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/data/716fab09f/c8637cec3bce495fb667d4a3b424a4d4 [2021-10-11 02:29:10,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:10,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:10,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:10,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:10,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:10,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:10" (1/1) ... [2021-10-11 02:29:10,767 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc68758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:10, skipping insertion in model container [2021-10-11 02:29:10,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:10" (1/1) ... [2021-10-11 02:29:10,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:10,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:11,132 WARN L226 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-10-11 02:29:11,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:11,213 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:29:11,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:11,246 WARN L226 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-10-11 02:29:11,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:11,300 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:11,360 WARN L226 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_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-10-11 02:29:11,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:11,449 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:11,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11 WrapperNode [2021-10-11 02:29:11,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:11,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:11,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:11,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:11,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:11,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:11,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:11,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:11,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... [2021-10-11 02:29:11,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:11,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:11,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:11,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:11,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:11,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:14,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:14,221 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-11 02:29:14,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:14 BoogieIcfgContainer [2021-10-11 02:29:14,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:14,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:14,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:14,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:14,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:10" (1/3) ... [2021-10-11 02:29:14,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179edce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:14, skipping insertion in model container [2021-10-11 02:29:14,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:11" (2/3) ... [2021-10-11 02:29:14,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@179edce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:14, skipping insertion in model container [2021-10-11 02:29:14,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:14" (3/3) ... [2021-10-11 02:29:14,233 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2021-10-11 02:29:14,247 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:14,251 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:29:14,262 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:29:14,287 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:14,288 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:14,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:14,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:14,288 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:14,288 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:14,289 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:14,289 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states. [2021-10-11 02:29:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:29:14,314 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:14,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:14,315 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:14,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:14,323 INFO L82 PathProgramCache]: Analyzing trace with hash 929673937, now seen corresponding path program 1 times [2021-10-11 02:29:14,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:14,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890180660] [2021-10-11 02:29:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:14,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:29:14,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:14,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:14,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890180660] [2021-10-11 02:29:14,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:14,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:14,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660589627] [2021-10-11 02:29:14,664 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:29:14,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:14,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:29:14,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:14,680 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 2 states. [2021-10-11 02:29:14,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:14,707 INFO L93 Difference]: Finished difference Result 172 states and 257 transitions. [2021-10-11 02:29:14,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:29:14,709 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:29:14,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:14,719 INFO L225 Difference]: With dead ends: 172 [2021-10-11 02:29:14,719 INFO L226 Difference]: Without dead ends: 85 [2021-10-11 02:29:14,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:14,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-10-11 02:29:14,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-10-11 02:29:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2021-10-11 02:29:14,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2021-10-11 02:29:14,764 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2021-10-11 02:29:14,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:14,765 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2021-10-11 02:29:14,765 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:29:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2021-10-11 02:29:14,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:29:14,766 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:14,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:14,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:14,986 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:14,989 INFO L82 PathProgramCache]: Analyzing trace with hash -117082960, now seen corresponding path program 1 times [2021-10-11 02:29:14,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:14,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [377533719] [2021-10-11 02:29:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:15,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:15,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:15,247 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:15,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [377533719] [2021-10-11 02:29:15,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:15,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:15,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790226761] [2021-10-11 02:29:15,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:15,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:15,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:15,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:15,251 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2021-10-11 02:29:15,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:15,269 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2021-10-11 02:29:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:15,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:29:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:15,271 INFO L225 Difference]: With dead ends: 85 [2021-10-11 02:29:15,271 INFO L226 Difference]: Without dead ends: 39 [2021-10-11 02:29:15,272 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:15,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-10-11 02:29:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-10-11 02:29:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-10-11 02:29:15,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2021-10-11 02:29:15,278 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2021-10-11 02:29:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:15,279 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2021-10-11 02:29:15,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:15,279 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-10-11 02:29:15,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:29:15,283 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:15,283 INFO L422 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] [2021-10-11 02:29:15,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,500 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:15,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:15,501 INFO L82 PathProgramCache]: Analyzing trace with hash 337421565, now seen corresponding path program 1 times [2021-10-11 02:29:15,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:15,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887969568] [2021-10-11 02:29:15,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:15,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:15,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:15,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:15,770 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:15,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887969568] [2021-10-11 02:29:15,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:15,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:15,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746684009] [2021-10-11 02:29:15,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:15,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:15,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:15,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:15,773 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2021-10-11 02:29:15,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:15,806 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2021-10-11 02:29:15,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:15,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:29:15,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:15,808 INFO L225 Difference]: With dead ends: 105 [2021-10-11 02:29:15,808 INFO L226 Difference]: Without dead ends: 72 [2021-10-11 02:29:15,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:15,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-11 02:29:15,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2021-10-11 02:29:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-10-11 02:29:15,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2021-10-11 02:29:15,832 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2021-10-11 02:29:15,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:15,833 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2021-10-11 02:29:15,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:15,833 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2021-10-11 02:29:15,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:29:15,835 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:15,835 INFO L422 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] [2021-10-11 02:29:16,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:29:16,052 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:16,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:16,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1224569535, now seen corresponding path program 1 times [2021-10-11 02:29:16,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:16,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49143180] [2021-10-11 02:29:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:16,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:16,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:16,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:16,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49143180] [2021-10-11 02:29:16,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:16,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:16,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055809011] [2021-10-11 02:29:16,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:16,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:16,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:16,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:16,342 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2021-10-11 02:29:16,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:16,439 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2021-10-11 02:29:16,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:16,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:29:16,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:16,441 INFO L225 Difference]: With dead ends: 171 [2021-10-11 02:29:16,441 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:29:16,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:16,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:29:16,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2021-10-11 02:29:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-10-11 02:29:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2021-10-11 02:29:16,468 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2021-10-11 02:29:16,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:16,468 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2021-10-11 02:29:16,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2021-10-11 02:29:16,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:29:16,470 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:16,470 INFO L422 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] [2021-10-11 02:29:16,671 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:29:16,671 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:16,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:16,672 INFO L82 PathProgramCache]: Analyzing trace with hash -840484654, now seen corresponding path program 1 times [2021-10-11 02:29:16,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:16,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183388182] [2021-10-11 02:29:16,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:16,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:16,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:16,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:16,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183388182] [2021-10-11 02:29:16,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:16,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:16,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054896674] [2021-10-11 02:29:16,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:16,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:16,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:16,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:16,954 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2021-10-11 02:29:17,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:17,090 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2021-10-11 02:29:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:29:17,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:29:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:17,094 INFO L225 Difference]: With dead ends: 535 [2021-10-11 02:29:17,094 INFO L226 Difference]: Without dead ends: 434 [2021-10-11 02:29:17,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:17,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2021-10-11 02:29:17,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 198. [2021-10-11 02:29:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-10-11 02:29:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2021-10-11 02:29:17,125 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 25 [2021-10-11 02:29:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:17,125 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2021-10-11 02:29:17,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2021-10-11 02:29:17,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:29:17,127 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:17,127 INFO L422 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] [2021-10-11 02:29:17,345 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:29:17,346 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:17,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:17,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1044291748, now seen corresponding path program 1 times [2021-10-11 02:29:17,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:17,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085220232] [2021-10-11 02:29:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:17,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:17,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:17,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:17,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085220232] [2021-10-11 02:29:17,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:17,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:17,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597051584] [2021-10-11 02:29:17,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:17,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:17,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:17,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:17,595 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 5 states. [2021-10-11 02:29:17,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:17,844 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2021-10-11 02:29:17,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:29:17,845 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:29:17,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:17,849 INFO L225 Difference]: With dead ends: 572 [2021-10-11 02:29:17,850 INFO L226 Difference]: Without dead ends: 570 [2021-10-11 02:29:17,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:17,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2021-10-11 02:29:17,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 198. [2021-10-11 02:29:17,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2021-10-11 02:29:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 281 transitions. [2021-10-11 02:29:17,907 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 281 transitions. Word has length 26 [2021-10-11 02:29:17,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:17,907 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 281 transitions. [2021-10-11 02:29:17,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 281 transitions. [2021-10-11 02:29:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:29:17,915 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:17,915 INFO L422 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, 1, 1, 1, 1, 1] [2021-10-11 02:29:18,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,136 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:18,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:18,137 INFO L82 PathProgramCache]: Analyzing trace with hash 895513141, now seen corresponding path program 1 times [2021-10-11 02:29:18,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:18,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396790176] [2021-10-11 02:29:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:18,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:18,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:18,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:18,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396790176] [2021-10-11 02:29:18,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:18,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:18,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744914110] [2021-10-11 02:29:18,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:18,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:18,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:18,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:18,388 INFO L87 Difference]: Start difference. First operand 198 states and 281 transitions. Second operand 5 states. [2021-10-11 02:29:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:18,474 INFO L93 Difference]: Finished difference Result 550 states and 772 transitions. [2021-10-11 02:29:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:18,475 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-10-11 02:29:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:18,477 INFO L225 Difference]: With dead ends: 550 [2021-10-11 02:29:18,477 INFO L226 Difference]: Without dead ends: 358 [2021-10-11 02:29:18,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-10-11 02:29:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 210. [2021-10-11 02:29:18,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-10-11 02:29:18,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2021-10-11 02:29:18,503 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 33 [2021-10-11 02:29:18,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:18,503 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2021-10-11 02:29:18,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:18,504 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2021-10-11 02:29:18,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:29:18,505 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:18,505 INFO L422 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, 1, 1, 1, 1, 1] [2021-10-11 02:29:18,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,717 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash 308707127, now seen corresponding path program 1 times [2021-10-11 02:29:18,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:18,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622287434] [2021-10-11 02:29:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:18,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:18,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:18,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:18,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622287434] [2021-10-11 02:29:18,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:18,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:18,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560923711] [2021-10-11 02:29:18,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:18,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:18,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:18,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:18,973 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand 4 states. [2021-10-11 02:29:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:19,062 INFO L93 Difference]: Finished difference Result 510 states and 706 transitions. [2021-10-11 02:29:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:19,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-10-11 02:29:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:19,065 INFO L225 Difference]: With dead ends: 510 [2021-10-11 02:29:19,065 INFO L226 Difference]: Without dead ends: 306 [2021-10-11 02:29:19,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-10-11 02:29:19,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 218. [2021-10-11 02:29:19,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2021-10-11 02:29:19,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2021-10-11 02:29:19,091 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 33 [2021-10-11 02:29:19,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:19,092 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2021-10-11 02:29:19,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:19,092 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2021-10-11 02:29:19,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:29:19,093 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:19,093 INFO L422 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, 1, 1, 1, 1, 1] [2021-10-11 02:29:19,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:29:19,311 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:19,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:19,312 INFO L82 PathProgramCache]: Analyzing trace with hash -971156551, now seen corresponding path program 1 times [2021-10-11 02:29:19,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:19,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134189804] [2021-10-11 02:29:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:19,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:19,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:19,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:19,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:19,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134189804] [2021-10-11 02:29:19,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:19,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:19,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756890251] [2021-10-11 02:29:19,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:19,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:19,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:19,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:19,540 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 3 states. [2021-10-11 02:29:19,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:19,597 INFO L93 Difference]: Finished difference Result 530 states and 726 transitions. [2021-10-11 02:29:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:19,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2021-10-11 02:29:19,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:19,599 INFO L225 Difference]: With dead ends: 530 [2021-10-11 02:29:19,600 INFO L226 Difference]: Without dead ends: 318 [2021-10-11 02:29:19,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:19,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-10-11 02:29:19,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2021-10-11 02:29:19,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-10-11 02:29:19,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2021-10-11 02:29:19,645 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 33 [2021-10-11 02:29:19,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:19,646 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2021-10-11 02:29:19,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:19,646 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2021-10-11 02:29:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 02:29:19,649 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:19,649 INFO L422 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, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:19,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:29:19,871 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:19,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:19,872 INFO L82 PathProgramCache]: Analyzing trace with hash 186139387, now seen corresponding path program 1 times [2021-10-11 02:29:19,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:19,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738087868] [2021-10-11 02:29:19,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:20,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:29:20,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:20,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:20,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738087868] [2021-10-11 02:29:20,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:20,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:29:20,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885399686] [2021-10-11 02:29:20,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:20,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:20,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:20,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:20,139 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand 6 states. [2021-10-11 02:29:22,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:22,129 INFO L93 Difference]: Finished difference Result 992 states and 1318 transitions. [2021-10-11 02:29:22,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:29:22,130 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2021-10-11 02:29:22,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:22,134 INFO L225 Difference]: With dead ends: 992 [2021-10-11 02:29:22,134 INFO L226 Difference]: Without dead ends: 680 [2021-10-11 02:29:22,135 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:29:22,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2021-10-11 02:29:22,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 318. [2021-10-11 02:29:22,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2021-10-11 02:29:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2021-10-11 02:29:22,186 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 34 [2021-10-11 02:29:22,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:22,186 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2021-10-11 02:29:22,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2021-10-11 02:29:22,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:29:22,187 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:22,188 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2021-10-11 02:29:22,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:29:22,404 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:22,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:22,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1466712466, now seen corresponding path program 1 times [2021-10-11 02:29:22,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:22,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321829088] [2021-10-11 02:29:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:23,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:23,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:24,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:25,052 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:29:25,052 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:25,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:29:25,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:25 BoogieIcfgContainer [2021-10-11 02:29:25,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:25,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:25,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:25,531 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:25,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:14" (3/4) ... [2021-10-11 02:29:25,534 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:29:25,728 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0808867f-c0d7-40f8-a6e8-245f4f3cf9a9/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:25,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:25,730 INFO L168 Benchmark]: Toolchain (without parser) took 14978.92 ms. Allocated memory was 67.1 MB in the beginning and 113.2 MB in the end (delta: 46.1 MB). Free memory was 49.0 MB in the beginning and 82.5 MB in the end (delta: -33.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,730 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 67.1 MB. Free memory is still 48.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:25,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.52 ms. Allocated memory is still 67.1 MB. Free memory was 48.8 MB in the beginning and 33.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,733 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.59 ms. Allocated memory is still 67.1 MB. Free memory was 33.0 MB in the beginning and 29.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,733 INFO L168 Benchmark]: Boogie Preprocessor took 41.91 ms. Allocated memory is still 67.1 MB. Free memory was 29.8 MB in the beginning and 27.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,734 INFO L168 Benchmark]: RCFGBuilder took 2636.57 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 27.4 MB in the beginning and 53.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,735 INFO L168 Benchmark]: TraceAbstraction took 11304.63 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 39.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,735 INFO L168 Benchmark]: Witness Printer took 197.82 ms. Allocated memory is still 113.2 MB. Free memory was 39.7 MB in the beginning and 82.5 MB in the end (delta: -42.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:25,738 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 67.1 MB. Free memory is still 48.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 693.52 ms. Allocated memory is still 67.1 MB. Free memory was 48.8 MB in the beginning and 33.0 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 92.59 ms. Allocated memory is still 67.1 MB. Free memory was 33.0 MB in the beginning and 29.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.91 ms. Allocated memory is still 67.1 MB. Free memory was 29.8 MB in the beginning and 27.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2636.57 ms. Allocated memory was 67.1 MB in the beginning and 94.4 MB in the end (delta: 27.3 MB). Free memory was 27.4 MB in the beginning and 53.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11304.63 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 39.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * Witness Printer took 197.82 ms. Allocated memory is still 113.2 MB. Free memory was 39.7 MB in the beginning and 82.5 MB in the end (delta: -42.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 407]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L514] int retValue_acc ; [L515] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L354] tmp = __VERIFIER_nondet_int() [L356] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND TRUE ! pumpRunning [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L307] tmp = isHighWaterSensorDry() [L309] COND FALSE !(\read(tmp)) [L312] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] tmp = isHighWaterLevel() [L193] COND TRUE \read(tmp) [L220] int tmp ; [L245] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L249] retValue_acc = isMethaneLevelCritical() [L251] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L224] tmp = isMethaneAlarm() [L226] COND FALSE !(\read(tmp)) [L214] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L346] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L348] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L79] COND FALSE !(\read(methaneLevelCritical)) [L82] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L164] COND TRUE \read(systemActive) [L186] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L418] tmp = isMethaneLevelCritical() [L420] COND TRUE \read(tmp) [L256] int retValue_acc ; [L259] retValue_acc = pumpRunning [L260] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L422] tmp___0 = isPumpRunning() [L424] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L407] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 89 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.9s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 1053 SDslu, 1353 SDs, 0 SdLazy, 173 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1212 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 13992 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2042 ConjunctsInSsa, 35 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! Received shutdown request...