./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8 --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 9f33e15e0937d430cb63c24d59de4b6438b3be32 ............................................................................................................................................ 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_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8 --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 9f33e15e0937d430cb63c24d59de4b6438b3be32 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:14:34,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:14:34,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:14:34,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:14:34,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:14:34,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:14:34,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:14:34,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:14:34,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:14:34,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:14:34,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:14:34,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:14:34,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:14:34,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:14:34,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:14:34,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:14:34,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:14:34,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:14:34,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:14:34,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:14:34,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:14:34,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:14:34,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:14:34,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:14:34,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:14:34,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:14:34,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:14:34,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:14:34,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:14:34,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:14:34,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:14:34,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:14:34,757 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:14:34,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:14:34,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:14:34,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:14:34,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:14:34,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:14:34,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:14:34,765 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:14:34,766 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:14:34,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:14:34,825 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:14:34,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:14:34,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:14:34,828 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:14:34,828 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:14:34,828 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:14:34,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:14:34,829 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:14:34,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:14:34,830 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:14:34,830 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:14:34,831 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:14:34,831 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:14:34,831 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:14:34,832 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:14:34,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:14:34,833 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:14:34,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:14:34,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:14:34,834 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:14:34,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:14:34,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:14:34,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:14:34,835 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:14:34,835 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:14:34,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:14:34,835 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:14:34,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:14:34,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:14:34,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:14:34,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:14:34,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:14:34,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:14:34,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:14:34,837 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:14:34,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:14:34,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:14:34,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:14:34,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:14:34,838 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_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f33e15e0937d430cb63c24d59de4b6438b3be32 [2021-10-13 08:14:35,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:14:35,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:14:35,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:14:35,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:14:35,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:14:35,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2021-10-13 08:14:35,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/0f4034b20/da5099f2129640a59bc7ec8c71e22b58/FLAG2beacb7bb [2021-10-13 08:14:35,956 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:14:35,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2021-10-13 08:14:35,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/0f4034b20/da5099f2129640a59bc7ec8c71e22b58/FLAG2beacb7bb [2021-10-13 08:14:36,155 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/0f4034b20/da5099f2129640a59bc7ec8c71e22b58 [2021-10-13 08:14:36,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:14:36,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:14:36,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:14:36,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:14:36,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:14:36,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:14:36" (1/1) ... [2021-10-13 08:14:36,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7676b583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:36, skipping insertion in model container [2021-10-13 08:14:36,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:14:36" (1/1) ... [2021-10-13 08:14:36,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:14:36,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:14:36,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c[18615,18628] [2021-10-13 08:14:36,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:14:36,648 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) [2021-10-13 08:14:36,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@475b18fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:36, skipping insertion in model container [2021-10-13 08:14:36,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:14:36,655 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 08:14:36,658 INFO L168 Benchmark]: Toolchain (without parser) took 489.27 ms. Allocated memory is still 123.7 MB. Free memory was 90.8 MB in the beginning and 97.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:14:36,658 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:14:36,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 482.49 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 97.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:14:36,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 83.9 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 482.49 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 97.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 636]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:14:39,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:14:39,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:14:39,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:14:39,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:14:39,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:14:39,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:14:39,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:14:39,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:14:39,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:14:39,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:14:39,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:14:39,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:14:39,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:14:39,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:14:39,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:14:39,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:14:39,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:14:39,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:14:39,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:14:39,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:14:39,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:14:39,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:14:39,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:14:39,370 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:14:39,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:14:39,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:14:39,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:14:39,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:14:39,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:14:39,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:14:39,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:14:39,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:14:39,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:14:39,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:14:39,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:14:39,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:14:39,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:14:39,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:14:39,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:14:39,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:14:39,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:14:39,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:14:39,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:14:39,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:14:39,448 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:14:39,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:14:39,448 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:14:39,448 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:14:39,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:14:39,449 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:14:39,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:14:39,452 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:14:39,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:14:39,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:14:39,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:14:39,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:14:39,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:14:39,454 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:14:39,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:14:39,455 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:14:39,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:14:39,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:14:39,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:14:39,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:14:39,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:14:39,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:14:39,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:14:39,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:14:39,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:14:39,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:14:39,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:14:39,458 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:14:39,458 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:14:39,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:14:39,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:14:39,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:14:39,459 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_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f33e15e0937d430cb63c24d59de4b6438b3be32 [2021-10-13 08:14:39,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:14:39,908 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:14:39,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:14:39,915 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:14:39,916 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:14:39,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2021-10-13 08:14:39,998 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/4ff9ceb82/8482d441429c4e2a94d0296129052279/FLAG126a32fd0 [2021-10-13 08:14:40,702 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:14:40,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c [2021-10-13 08:14:40,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/4ff9ceb82/8482d441429c4e2a94d0296129052279/FLAG126a32fd0 [2021-10-13 08:14:40,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/data/4ff9ceb82/8482d441429c4e2a94d0296129052279 [2021-10-13 08:14:40,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:14:40,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:14:40,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:14:40,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:14:40,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:14:40,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:14:40" (1/1) ... [2021-10-13 08:14:40,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f43bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:40, skipping insertion in model container [2021-10-13 08:14:40,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:14:40" (1/1) ... [2021-10-13 08:14:40,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:14:41,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:14:41,439 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c[18615,18628] [2021-10-13 08:14:41,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:14:41,477 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 08:14:41,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:14:41,575 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c[18615,18628] [2021-10-13 08:14:41,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:14:41,581 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:14:41,655 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/sv-benchmarks/c/product-lines/minepump_spec2_product50.cil.c[18615,18628] [2021-10-13 08:14:41,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:14:41,689 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:14:41,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41 WrapperNode [2021-10-13 08:14:41,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:14:41,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:14:41,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:14:41,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:14:41,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:14:41,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:14:41,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:14:41,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:14:41,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:14:41,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:14:41,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:14:41,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:14:41,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (1/1) ... [2021-10-13 08:14:41,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:14:41,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:14:41,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:14:41,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:14:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:14:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:14:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:14:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:14:44,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:14:44,778 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-13 08:14:44,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:14:44 BoogieIcfgContainer [2021-10-13 08:14:44,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:14:44,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:14:44,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:14:44,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:14:44,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:14:40" (1/3) ... [2021-10-13 08:14:44,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552e0688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:14:44, skipping insertion in model container [2021-10-13 08:14:44,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:14:41" (2/3) ... [2021-10-13 08:14:44,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552e0688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:14:44, skipping insertion in model container [2021-10-13 08:14:44,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:14:44" (3/3) ... [2021-10-13 08:14:44,790 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2021-10-13 08:14:44,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:14:44,797 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 08:14:44,858 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:14:44,866 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:14:44,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 08:14:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 117 states have (on average 1.5726495726495726) internal successors, (184), 120 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 08:14:44,896 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:44,897 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:44,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:44,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:44,906 INFO L82 PathProgramCache]: Analyzing trace with hash -458581887, now seen corresponding path program 1 times [2021-10-13 08:14:44,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:44,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40620858] [2021-10-13 08:14:44,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:44,924 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:44,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:44,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:44,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:14:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:45,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 08:14:45,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:45,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:45,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:45,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40620858] [2021-10-13 08:14:45,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40620858] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:45,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:45,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:14:45,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594702399] [2021-10-13 08:14:45,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:14:45,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:45,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:14:45,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:14:45,353 INFO L87 Difference]: Start difference. First operand has 121 states, 117 states have (on average 1.5726495726495726) internal successors, (184), 120 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:45,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:45,390 INFO L93 Difference]: Finished difference Result 235 states and 360 transitions. [2021-10-13 08:14:45,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:14:45,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 08:14:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:45,408 INFO L225 Difference]: With dead ends: 235 [2021-10-13 08:14:45,409 INFO L226 Difference]: Without dead ends: 117 [2021-10-13 08:14:45,413 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:14:45,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-13 08:14:45,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2021-10-13 08:14:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 114 states have (on average 1.5087719298245614) internal successors, (172), 116 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2021-10-13 08:14:45,489 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 18 [2021-10-13 08:14:45,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:45,490 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2021-10-13 08:14:45,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:45,491 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2021-10-13 08:14:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 08:14:45,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:45,495 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:45,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:45,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:45,718 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:45,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash -356027389, now seen corresponding path program 1 times [2021-10-13 08:14:45,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:45,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [556123139] [2021-10-13 08:14:45,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:45,721 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:45,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:45,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:45,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:14:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:45,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:45,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:46,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:46,095 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:46,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [556123139] [2021-10-13 08:14:46,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [556123139] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:46,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:46,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:46,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47994491] [2021-10-13 08:14:46,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:46,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:46,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:46,101 INFO L87 Difference]: Start difference. First operand 117 states and 172 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:46,120 INFO L93 Difference]: Finished difference Result 117 states and 172 transitions. [2021-10-13 08:14:46,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:46,121 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 08:14:46,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:46,122 INFO L225 Difference]: With dead ends: 117 [2021-10-13 08:14:46,122 INFO L226 Difference]: Without dead ends: 49 [2021-10-13 08:14:46,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:46,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-13 08:14:46,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-13 08:14:46,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:46,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-13 08:14:46,130 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-13 08:14:46,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:46,131 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-13 08:14:46,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:46,132 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-13 08:14:46,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 08:14:46,133 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:46,133 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:46,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 08:14:46,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:46,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:46,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:46,348 INFO L82 PathProgramCache]: Analyzing trace with hash 988842679, now seen corresponding path program 1 times [2021-10-13 08:14:46,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:46,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653752367] [2021-10-13 08:14:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:46,349 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:46,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:46,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:46,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:14:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:46,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:46,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:46,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:46,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:46,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:46,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653752367] [2021-10-13 08:14:46,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653752367] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:46,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:46,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:46,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749315782] [2021-10-13 08:14:46,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:46,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:46,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:46,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:46,772 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:46,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:46,815 INFO L93 Difference]: Finished difference Result 91 states and 135 transitions. [2021-10-13 08:14:46,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:46,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 08:14:46,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:46,818 INFO L225 Difference]: With dead ends: 91 [2021-10-13 08:14:46,818 INFO L226 Difference]: Without dead ends: 49 [2021-10-13 08:14:46,819 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-13 08:14:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-13 08:14:46,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 48 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2021-10-13 08:14:46,828 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 24 [2021-10-13 08:14:46,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:46,828 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2021-10-13 08:14:46,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:46,829 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2021-10-13 08:14:46,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 08:14:46,831 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:46,831 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:46,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:47,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:47,047 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:47,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:47,047 INFO L82 PathProgramCache]: Analyzing trace with hash -524841611, now seen corresponding path program 1 times [2021-10-13 08:14:47,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:47,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1936154180] [2021-10-13 08:14:47,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:47,049 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:47,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:47,050 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:47,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:14:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:47,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:47,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:47,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:47,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:47,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:47,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1936154180] [2021-10-13 08:14:47,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1936154180] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:47,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:47,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:14:47,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300396507] [2021-10-13 08:14:47,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:14:47,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:47,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:14:47,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:47,508 INFO L87 Difference]: Start difference. First operand 49 states and 70 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:47,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:47,583 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2021-10-13 08:14:47,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:47,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 08:14:47,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:47,593 INFO L225 Difference]: With dead ends: 113 [2021-10-13 08:14:47,593 INFO L226 Difference]: Without dead ends: 71 [2021-10-13 08:14:47,594 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:47,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-13 08:14:47,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2021-10-13 08:14:47,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.4411764705882353) internal successors, (98), 68 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:47,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 98 transitions. [2021-10-13 08:14:47,605 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 98 transitions. Word has length 26 [2021-10-13 08:14:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:47,606 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 98 transitions. [2021-10-13 08:14:47,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:47,606 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 98 transitions. [2021-10-13 08:14:47,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 08:14:47,608 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:47,608 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:47,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:47,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:47,821 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:47,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:47,822 INFO L82 PathProgramCache]: Analyzing trace with hash -65166556, now seen corresponding path program 1 times [2021-10-13 08:14:47,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:47,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000348745] [2021-10-13 08:14:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:47,824 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:47,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:47,825 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:47,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 08:14:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:48,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:14:48,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:48,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:48,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:48,288 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:48,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000348745] [2021-10-13 08:14:48,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000348745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:48,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:48,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 08:14:48,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694240196] [2021-10-13 08:14:48,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:14:48,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:48,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:14:48,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:14:48,296 INFO L87 Difference]: Start difference. First operand 69 states and 98 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:48,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:48,400 INFO L93 Difference]: Finished difference Result 182 states and 258 transitions. [2021-10-13 08:14:48,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 08:14:48,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-13 08:14:48,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:48,403 INFO L225 Difference]: With dead ends: 182 [2021-10-13 08:14:48,403 INFO L226 Difference]: Without dead ends: 120 [2021-10-13 08:14:48,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:14:48,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-13 08:14:48,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 75. [2021-10-13 08:14:48,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 74 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 104 transitions. [2021-10-13 08:14:48,417 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 104 transitions. Word has length 32 [2021-10-13 08:14:48,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:48,418 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 104 transitions. [2021-10-13 08:14:48,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2021-10-13 08:14:48,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 08:14:48,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:48,420 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:48,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:48,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:48,640 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:48,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:48,641 INFO L82 PathProgramCache]: Analyzing trace with hash 868297153, now seen corresponding path program 1 times [2021-10-13 08:14:48,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:48,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51062044] [2021-10-13 08:14:48,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:48,642 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:48,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:48,644 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:48,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 08:14:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:48,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:14:48,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:49,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:49,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:49,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:49,249 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:49,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51062044] [2021-10-13 08:14:49,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51062044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:49,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:49,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 08:14:49,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533942325] [2021-10-13 08:14:49,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:14:49,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:49,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:14:49,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:14:49,251 INFO L87 Difference]: Start difference. First operand 75 states and 104 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:49,393 INFO L93 Difference]: Finished difference Result 387 states and 547 transitions. [2021-10-13 08:14:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:14:49,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-13 08:14:49,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:49,398 INFO L225 Difference]: With dead ends: 387 [2021-10-13 08:14:49,398 INFO L226 Difference]: Without dead ends: 319 [2021-10-13 08:14:49,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 53.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:14:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-10-13 08:14:49,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 135. [2021-10-13 08:14:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 134 states have (on average 1.3880597014925373) internal successors, (186), 134 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 186 transitions. [2021-10-13 08:14:49,438 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 186 transitions. Word has length 32 [2021-10-13 08:14:49,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:49,439 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 186 transitions. [2021-10-13 08:14:49,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:49,440 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 186 transitions. [2021-10-13 08:14:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 08:14:49,441 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:49,445 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:49,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:49,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:49,660 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:49,661 INFO L82 PathProgramCache]: Analyzing trace with hash 868140617, now seen corresponding path program 1 times [2021-10-13 08:14:49,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:49,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258770400] [2021-10-13 08:14:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:49,662 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:49,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:49,664 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:49,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 08:14:49,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:49,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:14:49,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:50,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:50,201 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:50,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258770400] [2021-10-13 08:14:50,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258770400] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:50,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:50,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 08:14:50,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583378827] [2021-10-13 08:14:50,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:14:50,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:50,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:14:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:14:50,204 INFO L87 Difference]: Start difference. First operand 135 states and 186 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:50,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:50,407 INFO L93 Difference]: Finished difference Result 506 states and 701 transitions. [2021-10-13 08:14:50,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 08:14:50,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 08:14:50,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:50,411 INFO L225 Difference]: With dead ends: 506 [2021-10-13 08:14:50,411 INFO L226 Difference]: Without dead ends: 378 [2021-10-13 08:14:50,412 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:14:50,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-10-13 08:14:50,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 134. [2021-10-13 08:14:50,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 1.3759398496240602) internal successors, (183), 133 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 183 transitions. [2021-10-13 08:14:50,447 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 183 transitions. Word has length 33 [2021-10-13 08:14:50,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:50,447 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 183 transitions. [2021-10-13 08:14:50,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:50,448 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 183 transitions. [2021-10-13 08:14:50,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 08:14:50,450 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:50,450 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:50,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:50,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:50,665 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:50,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:50,666 INFO L82 PathProgramCache]: Analyzing trace with hash 635741486, now seen corresponding path program 1 times [2021-10-13 08:14:50,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:50,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608213471] [2021-10-13 08:14:50,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:50,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:50,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:50,671 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:50,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:14:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:50,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 08:14:50,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:51,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:51,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:51,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:51,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608213471] [2021-10-13 08:14:51,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608213471] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:51,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:51,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 08:14:51,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547011668] [2021-10-13 08:14:51,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:14:51,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:51,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:14:51,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:14:51,187 INFO L87 Difference]: Start difference. First operand 134 states and 183 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:51,258 INFO L93 Difference]: Finished difference Result 357 states and 483 transitions. [2021-10-13 08:14:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:14:51,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 08:14:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:51,260 INFO L225 Difference]: With dead ends: 357 [2021-10-13 08:14:51,260 INFO L226 Difference]: Without dead ends: 230 [2021-10-13 08:14:51,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:14:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-13 08:14:51,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 142. [2021-10-13 08:14:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.3546099290780143) internal successors, (191), 141 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:51,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 191 transitions. [2021-10-13 08:14:51,282 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 191 transitions. Word has length 33 [2021-10-13 08:14:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:51,282 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 191 transitions. [2021-10-13 08:14:51,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:51,283 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 191 transitions. [2021-10-13 08:14:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 08:14:51,284 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:51,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:51,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:51,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:51,498 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:51,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:51,498 INFO L82 PathProgramCache]: Analyzing trace with hash 48935472, now seen corresponding path program 1 times [2021-10-13 08:14:51,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:51,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726701659] [2021-10-13 08:14:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:51,499 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:51,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:51,500 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:51,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 08:14:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:51,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:51,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:51,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:51,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:51,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:51,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726701659] [2021-10-13 08:14:51,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726701659] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:51,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:51,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 08:14:51,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827162892] [2021-10-13 08:14:51,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:51,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:51,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:51,952 INFO L87 Difference]: Start difference. First operand 142 states and 191 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:52,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:52,037 INFO L93 Difference]: Finished difference Result 434 states and 587 transitions. [2021-10-13 08:14:52,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:14:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 08:14:52,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:52,043 INFO L225 Difference]: With dead ends: 434 [2021-10-13 08:14:52,043 INFO L226 Difference]: Without dead ends: 299 [2021-10-13 08:14:52,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:52,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-10-13 08:14:52,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 247. [2021-10-13 08:14:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.3414634146341464) internal successors, (330), 246 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:52,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 330 transitions. [2021-10-13 08:14:52,080 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 330 transitions. Word has length 33 [2021-10-13 08:14:52,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:52,080 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 330 transitions. [2021-10-13 08:14:52,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 330 transitions. [2021-10-13 08:14:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 08:14:52,084 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:52,085 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:14:52,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:52,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:52,298 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:52,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:52,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1943567600, now seen corresponding path program 1 times [2021-10-13 08:14:52,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:52,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138988513] [2021-10-13 08:14:52,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:52,300 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:52,301 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:52,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 08:14:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:52,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:52,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:52,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:52,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:52,832 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:52,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138988513] [2021-10-13 08:14:52,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138988513] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:52,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:52,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 08:14:52,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462468158] [2021-10-13 08:14:52,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:14:52,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:52,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:14:52,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:52,834 INFO L87 Difference]: Start difference. First operand 247 states and 330 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:52,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:52,918 INFO L93 Difference]: Finished difference Result 423 states and 564 transitions. [2021-10-13 08:14:52,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:52,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-13 08:14:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:52,922 INFO L225 Difference]: With dead ends: 423 [2021-10-13 08:14:52,922 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 08:14:52,922 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:14:52,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 08:14:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 316. [2021-10-13 08:14:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.3714285714285714) internal successors, (432), 315 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 432 transitions. [2021-10-13 08:14:52,961 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 432 transitions. Word has length 34 [2021-10-13 08:14:52,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:52,961 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 432 transitions. [2021-10-13 08:14:52,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 432 transitions. [2021-10-13 08:14:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 08:14:52,964 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:52,964 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-10-13 08:14:52,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:53,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:53,178 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:53,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:53,179 INFO L82 PathProgramCache]: Analyzing trace with hash 496339190, now seen corresponding path program 1 times [2021-10-13 08:14:53,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:53,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543064615] [2021-10-13 08:14:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:53,180 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:53,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:53,181 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:53,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 08:14:53,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:53,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:14:53,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:53,724 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:53,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:53,880 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:53,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:53,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543064615] [2021-10-13 08:14:53,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543064615] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:53,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:53,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:14:53,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572740089] [2021-10-13 08:14:53,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:14:53,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:53,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:14:53,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:53,883 INFO L87 Difference]: Start difference. First operand 316 states and 432 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:57,173 INFO L93 Difference]: Finished difference Result 580 states and 800 transitions. [2021-10-13 08:14:57,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:14:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-13 08:14:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:57,176 INFO L225 Difference]: With dead ends: 580 [2021-10-13 08:14:57,176 INFO L226 Difference]: Without dead ends: 271 [2021-10-13 08:14:57,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:14:57,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-13 08:14:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2021-10-13 08:14:57,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.3222222222222222) internal successors, (357), 270 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:57,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 357 transitions. [2021-10-13 08:14:57,211 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 357 transitions. Word has length 58 [2021-10-13 08:14:57,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:57,212 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 357 transitions. [2021-10-13 08:14:57,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:57,213 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 357 transitions. [2021-10-13 08:14:57,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 08:14:57,217 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:57,217 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1] [2021-10-13 08:14:57,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:57,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:57,432 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:57,433 INFO L82 PathProgramCache]: Analyzing trace with hash 985757466, now seen corresponding path program 1 times [2021-10-13 08:14:57,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:57,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037626180] [2021-10-13 08:14:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:57,433 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:57,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:57,434 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:57,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 08:14:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:57,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:14:57,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 08:14:57,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 08:14:58,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:58,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037626180] [2021-10-13 08:14:58,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037626180] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:14:58,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:14:58,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 08:14:58,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702162953] [2021-10-13 08:14:58,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 08:14:58,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:58,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 08:14:58,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:14:58,150 INFO L87 Difference]: Start difference. First operand 271 states and 357 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:58,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:58,292 INFO L93 Difference]: Finished difference Result 855 states and 1127 transitions. [2021-10-13 08:14:58,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 08:14:58,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-13 08:14:58,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:58,299 INFO L225 Difference]: With dead ends: 855 [2021-10-13 08:14:58,299 INFO L226 Difference]: Without dead ends: 591 [2021-10-13 08:14:58,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 56.4ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:14:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2021-10-13 08:14:58,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 283. [2021-10-13 08:14:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.3085106382978724) internal successors, (369), 282 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 369 transitions. [2021-10-13 08:14:58,342 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 369 transitions. Word has length 58 [2021-10-13 08:14:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:58,342 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 369 transitions. [2021-10-13 08:14:58,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 369 transitions. [2021-10-13 08:14:58,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 08:14:58,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:14:58,344 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 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, 1, 1, 1] [2021-10-13 08:14:58,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:58,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:14:58,564 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:14:58,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:14:58,564 INFO L82 PathProgramCache]: Analyzing trace with hash 727592028, now seen corresponding path program 1 times [2021-10-13 08:14:58,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:14:58,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242941611] [2021-10-13 08:14:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:58,565 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:14:58,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:14:58,566 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:14:58,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 08:14:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:14:58,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:14:58,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:14:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:14:59,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:14:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:14:59,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:14:59,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242941611] [2021-10-13 08:14:59,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242941611] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:59,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1267594317] [2021-10-13 08:14:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:14:59,482 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:14:59,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:14:59,484 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:14:59,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-13 08:15:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:15:00,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 08:15:00,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:15:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:15:00,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:15:00,607 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:15:00,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1267594317] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:15:00,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952533904] [2021-10-13 08:15:00,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:15:00,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:15:00,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:15:00,613 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:15:00,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 08:15:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:15:01,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:15:01,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:15:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:15:01,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:15:01,493 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 08:15:01,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952533904] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:15:01,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:15:01,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 5, 5] total 8 [2021-10-13 08:15:01,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057896149] [2021-10-13 08:15:01,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 08:15:01,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:15:01,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 08:15:01,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:15:01,496 INFO L87 Difference]: Start difference. First operand 283 states and 369 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:15:06,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:15:06,358 INFO L93 Difference]: Finished difference Result 655 states and 858 transitions. [2021-10-13 08:15:06,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:15:06,359 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-13 08:15:06,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:15:06,359 INFO L225 Difference]: With dead ends: 655 [2021-10-13 08:15:06,360 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:15:06,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 104.9ms TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-10-13 08:15:06,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:15:06,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:15:06,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:15:06,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:15:06,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-10-13 08:15:06,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:15:06,362 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:15:06,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:15:06,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:15:06,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:15:06,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:15:06,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:15:06,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:15:06,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-10-13 08:15:06,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-13 08:15:06,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-13 08:15:06,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:15:06,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:15:06,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:07,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,477 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,731 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:08,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:15:14,041 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 978) no Hoare annotation was computed. [2021-10-13 08:15:14,041 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 176) no Hoare annotation was computed. [2021-10-13 08:15:14,041 INFO L860 garLoopResultBuilder]: At program point L169-1(lines 169 176) the Hoare annotation is: true [2021-10-13 08:15:14,041 INFO L853 garLoopResultBuilder]: At program point L599(lines 550 600) the Hoare annotation is: false [2021-10-13 08:15:14,041 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 418) no Hoare annotation was computed. [2021-10-13 08:15:14,041 INFO L857 garLoopResultBuilder]: For program point L401-1(lines 401 418) no Hoare annotation was computed. [2021-10-13 08:15:14,041 INFO L857 garLoopResultBuilder]: For program point L401-2(lines 401 418) no Hoare annotation was computed. [2021-10-13 08:15:14,042 INFO L857 garLoopResultBuilder]: For program point L236(lines 236 240) no Hoare annotation was computed. [2021-10-13 08:15:14,042 INFO L857 garLoopResultBuilder]: For program point L203(lines 203 220) no Hoare annotation was computed. [2021-10-13 08:15:14,042 INFO L853 garLoopResultBuilder]: At program point L203-1(lines 1 981) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse5) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) .cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse5))) [2021-10-13 08:15:14,042 INFO L857 garLoopResultBuilder]: For program point L236-3(lines 236 240) no Hoare annotation was computed. [2021-10-13 08:15:14,042 INFO L857 garLoopResultBuilder]: For program point L203-2(lines 203 220) no Hoare annotation was computed. [2021-10-13 08:15:14,042 INFO L853 garLoopResultBuilder]: At program point L203-3(lines 1 981) the Hoare annotation is: false [2021-10-13 08:15:14,043 INFO L857 garLoopResultBuilder]: For program point L203-4(lines 203 220) no Hoare annotation was computed. [2021-10-13 08:15:14,043 INFO L857 garLoopResultBuilder]: For program point L236-6(lines 236 240) no Hoare annotation was computed. [2021-10-13 08:15:14,043 INFO L853 garLoopResultBuilder]: At program point L203-5(lines 1 981) the Hoare annotation is: false [2021-10-13 08:15:14,043 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,043 INFO L857 garLoopResultBuilder]: For program point L503-2(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,043 INFO L857 garLoopResultBuilder]: For program point L503-3(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-5(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-6(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-8(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-9(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-11(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-12(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-14(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,044 INFO L857 garLoopResultBuilder]: For program point L503-15(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,045 INFO L857 garLoopResultBuilder]: For program point L503-17(lines 503 507) no Hoare annotation was computed. [2021-10-13 08:15:14,045 INFO L857 garLoopResultBuilder]: For program point L405(lines 405 413) no Hoare annotation was computed. [2021-10-13 08:15:14,045 INFO L857 garLoopResultBuilder]: For program point L405-1(lines 405 413) no Hoare annotation was computed. [2021-10-13 08:15:14,045 INFO L857 garLoopResultBuilder]: For program point L405-2(lines 405 413) no Hoare annotation was computed. [2021-10-13 08:15:14,045 INFO L853 garLoopResultBuilder]: At program point L273(lines 268 276) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse3) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse3) (and .cse0 .cse5 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2) (and .cse0 .cse5 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2))) [2021-10-13 08:15:14,045 INFO L853 garLoopResultBuilder]: At program point L273-1(lines 268 276) the Hoare annotation is: false [2021-10-13 08:15:14,045 INFO L857 garLoopResultBuilder]: For program point L207(lines 207 217) no Hoare annotation was computed. [2021-10-13 08:15:14,046 INFO L853 garLoopResultBuilder]: At program point L273-2(lines 268 276) the Hoare annotation is: false [2021-10-13 08:15:14,046 INFO L857 garLoopResultBuilder]: For program point L207-2(lines 207 217) no Hoare annotation was computed. [2021-10-13 08:15:14,046 INFO L853 garLoopResultBuilder]: At program point L75(lines 70 78) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 08:15:14,046 INFO L857 garLoopResultBuilder]: For program point L207-4(lines 207 217) no Hoare annotation was computed. [2021-10-13 08:15:14,046 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 577) no Hoare annotation was computed. [2021-10-13 08:15:14,047 INFO L853 garLoopResultBuilder]: At program point L571-1(lines 571 577) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (bvslt ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse5 .cse6) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) .cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse3 .cse2 .cse6))) [2021-10-13 08:15:14,047 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 978) no Hoare annotation was computed. [2021-10-13 08:15:14,047 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 214) no Hoare annotation was computed. [2021-10-13 08:15:14,047 INFO L857 garLoopResultBuilder]: For program point L208-2(lines 208 214) no Hoare annotation was computed. [2021-10-13 08:15:14,047 INFO L857 garLoopResultBuilder]: For program point L208-4(lines 208 214) no Hoare annotation was computed. [2021-10-13 08:15:14,047 INFO L853 garLoopResultBuilder]: At program point L143(lines 139 145) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 08:15:14,047 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 392) no Hoare annotation was computed. [2021-10-13 08:15:14,047 INFO L857 garLoopResultBuilder]: For program point L375-1(lines 375 392) no Hoare annotation was computed. [2021-10-13 08:15:14,048 INFO L857 garLoopResultBuilder]: For program point L375-2(lines 375 392) no Hoare annotation was computed. [2021-10-13 08:15:14,048 INFO L857 garLoopResultBuilder]: For program point L375-3(lines 375 392) no Hoare annotation was computed. [2021-10-13 08:15:14,048 INFO L857 garLoopResultBuilder]: For program point L375-4(lines 375 392) no Hoare annotation was computed. [2021-10-13 08:15:14,048 INFO L857 garLoopResultBuilder]: For program point L375-5(lines 375 392) no Hoare annotation was computed. [2021-10-13 08:15:14,048 INFO L853 garLoopResultBuilder]: At program point L343(lines 342 361) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse3) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse3) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse2 .cse4) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3))) [2021-10-13 08:15:14,048 INFO L857 garLoopResultBuilder]: For program point L343-1(lines 343 349) no Hoare annotation was computed. [2021-10-13 08:15:14,049 INFO L853 garLoopResultBuilder]: At program point L343-2(lines 342 361) the Hoare annotation is: false [2021-10-13 08:15:14,049 INFO L853 garLoopResultBuilder]: At program point L343-3(lines 342 361) the Hoare annotation is: false [2021-10-13 08:15:14,049 INFO L860 garLoopResultBuilder]: At program point L178(lines 159 181) the Hoare annotation is: true [2021-10-13 08:15:14,049 INFO L853 garLoopResultBuilder]: At program point L509(lines 494 512) the Hoare annotation is: false [2021-10-13 08:15:14,049 INFO L853 garLoopResultBuilder]: At program point L509-1(lines 494 512) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)))) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse7 (= ~waterLevel~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) .cse4 .cse5 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse6 .cse7 .cse3) (and .cse0 .cse1 .cse4 .cse5 .cse2 .cse6 .cse3) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse4 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse5 .cse2 .cse6 .cse7 .cse3))) [2021-10-13 08:15:14,049 INFO L853 garLoopResultBuilder]: At program point L509-2(lines 494 512) the Hoare annotation is: false [2021-10-13 08:15:14,050 INFO L853 garLoopResultBuilder]: At program point L509-3(lines 494 512) the Hoare annotation is: false [2021-10-13 08:15:14,050 INFO L853 garLoopResultBuilder]: At program point L509-4(lines 494 512) the Hoare annotation is: false [2021-10-13 08:15:14,050 INFO L853 garLoopResultBuilder]: At program point L509-5(lines 494 512) the Hoare annotation is: false [2021-10-13 08:15:14,050 INFO L857 garLoopResultBuilder]: For program point L379(lines 379 387) no Hoare annotation was computed. [2021-10-13 08:15:14,050 INFO L857 garLoopResultBuilder]: For program point L379-1(lines 379 387) no Hoare annotation was computed. [2021-10-13 08:15:14,050 INFO L857 garLoopResultBuilder]: For program point L313(lines 313 319) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L379-2(lines 379 387) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L313-1(lines 313 319) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L379-3(lines 379 387) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L313-2(lines 313 319) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L379-4(lines 379 387) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L313-3(lines 313 319) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L379-5(lines 379 387) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L313-4(lines 313 319) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L313-5(lines 313 319) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L248(lines 248 252) no Hoare annotation was computed. [2021-10-13 08:15:14,051 INFO L857 garLoopResultBuilder]: For program point L581(lines 581 594) no Hoare annotation was computed. [2021-10-13 08:15:14,052 INFO L853 garLoopResultBuilder]: At program point L350(lines 350 356) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse3) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse3) (and .cse0 .cse5 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2) (and .cse0 .cse5 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2))) [2021-10-13 08:15:14,052 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:15:14,052 INFO L853 garLoopResultBuilder]: At program point L350-1(lines 350 356) the Hoare annotation is: false [2021-10-13 08:15:14,052 INFO L853 garLoopResultBuilder]: At program point L350-2(lines 350 356) the Hoare annotation is: false [2021-10-13 08:15:14,052 INFO L857 garLoopResultBuilder]: For program point L978(line 978) no Hoare annotation was computed. [2021-10-13 08:15:14,052 INFO L857 garLoopResultBuilder]: For program point L978-1(line 978) no Hoare annotation was computed. [2021-10-13 08:15:14,052 INFO L857 garLoopResultBuilder]: For program point L978-2(line 978) no Hoare annotation was computed. [2021-10-13 08:15:14,052 INFO L853 garLoopResultBuilder]: At program point L318(lines 309 322) the Hoare annotation is: false [2021-10-13 08:15:14,053 INFO L853 garLoopResultBuilder]: At program point L318-1(lines 309 322) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (bvslt ~waterLevel~0 (_ bv2 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) .cse4 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse5 .cse6 .cse3) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse4 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse5 .cse6 .cse3))) [2021-10-13 08:15:14,053 INFO L853 garLoopResultBuilder]: At program point L318-2(lines 309 322) the Hoare annotation is: false [2021-10-13 08:15:14,053 INFO L853 garLoopResultBuilder]: At program point L318-3(lines 309 322) the Hoare annotation is: false [2021-10-13 08:15:14,053 INFO L853 garLoopResultBuilder]: At program point L318-4(lines 309 322) the Hoare annotation is: false [2021-10-13 08:15:14,053 INFO L853 garLoopResultBuilder]: At program point L318-5(lines 309 322) the Hoare annotation is: false [2021-10-13 08:15:14,053 INFO L857 garLoopResultBuilder]: For program point L552(lines 551 598) no Hoare annotation was computed. [2021-10-13 08:15:14,054 INFO L857 garLoopResultBuilder]: For program point L553(lines 553 557) no Hoare annotation was computed. [2021-10-13 08:15:14,054 INFO L853 garLoopResultBuilder]: At program point L454(lines 449 457) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse3 .cse5 .cse4) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse3) (and .cse0 .cse2 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse3 .cse5 .cse4))) [2021-10-13 08:15:14,054 INFO L853 garLoopResultBuilder]: At program point L454-1(lines 449 457) the Hoare annotation is: false [2021-10-13 08:15:14,054 INFO L853 garLoopResultBuilder]: At program point L454-2(lines 449 457) the Hoare annotation is: false [2021-10-13 08:15:14,054 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:15:14,055 INFO L853 garLoopResultBuilder]: At program point L92-2(lines 92 106) the Hoare annotation is: false [2021-10-13 08:15:14,055 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:14,055 INFO L857 garLoopResultBuilder]: For program point L522-2(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:14,055 INFO L857 garLoopResultBuilder]: For program point L522-3(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:14,055 INFO L857 garLoopResultBuilder]: For program point L522-5(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:14,055 INFO L857 garLoopResultBuilder]: For program point L522-6(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:14,055 INFO L857 garLoopResultBuilder]: For program point L522-8(lines 522 526) no Hoare annotation was computed. [2021-10-13 08:15:14,056 INFO L853 garLoopResultBuilder]: At program point L192(lines 187 194) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 08:15:14,056 INFO L857 garLoopResultBuilder]: For program point L93(line 93) no Hoare annotation was computed. [2021-10-13 08:15:14,056 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 593) no Hoare annotation was computed. [2021-10-13 08:15:14,056 INFO L853 garLoopResultBuilder]: At program point L589-2(lines 343 349) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (bvslt ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse5 .cse6) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) .cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse3 .cse2 .cse6))) [2021-10-13 08:15:14,056 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:15:14,057 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 264) no Hoare annotation was computed. [2021-10-13 08:15:14,057 INFO L857 garLoopResultBuilder]: For program point L96(lines 96 100) no Hoare annotation was computed. [2021-10-13 08:15:14,057 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 343 349) no Hoare annotation was computed. [2021-10-13 08:15:14,057 INFO L853 garLoopResultBuilder]: At program point L328(lines 323 331) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32))) [2021-10-13 08:15:14,057 INFO L853 garLoopResultBuilder]: At program point L328-1(lines 323 331) the Hoare annotation is: false [2021-10-13 08:15:14,057 INFO L853 garLoopResultBuilder]: At program point L328-2(lines 323 331) the Hoare annotation is: false [2021-10-13 08:15:14,058 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:15:14,058 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 978) no Hoare annotation was computed. [2021-10-13 08:15:14,058 INFO L857 garLoopResultBuilder]: For program point L561(lines 561 567) no Hoare annotation was computed. [2021-10-13 08:15:14,058 INFO L853 garLoopResultBuilder]: At program point L561-1(lines 561 567) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse2) (and .cse0 .cse3 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) .cse2 .cse4 .cse5) (and .cse0 (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) .cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) .cse2 .cse4 .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse5))) [2021-10-13 08:15:14,058 INFO L853 garLoopResultBuilder]: At program point L528(lines 513 531) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) [2021-10-13 08:15:14,059 INFO L853 garLoopResultBuilder]: At program point L528-1(lines 513 531) the Hoare annotation is: false [2021-10-13 08:15:14,059 INFO L853 garLoopResultBuilder]: At program point L528-2(lines 513 531) the Hoare annotation is: false [2021-10-13 08:15:14,059 INFO L853 garLoopResultBuilder]: At program point L67(lines 1 981) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 08:15:14,064 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:15:14,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:15:14 BoogieIcfgContainer [2021-10-13 08:15:14,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:15:14,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:15:14,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:15:14,117 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:15:14,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:14:44" (3/4) ... [2021-10-13 08:15:14,121 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:15:14,143 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-13 08:15:14,144 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 08:15:14,146 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 08:15:14,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 08:15:14,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 08:15:14,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:15:14,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:15:14,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-13 08:15:14,177 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-13 08:15:14,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-13 08:15:14,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && waterLevel == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) [2021-10-13 08:15:14,181 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) [2021-10-13 08:15:14,182 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32 [2021-10-13 08:15:14,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && 1bv32 == \result) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && 0bv32 == \result) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((((splverifierCounter == 0bv32 && 0bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 [2021-10-13 08:15:14,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((((splverifierCounter == 0bv32 && tmp == 0bv32) && !(tmp == 0bv32)) && tmp___0 == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(tmp == 0bv32)) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && !(tmp == 0bv32)) && \result == 1bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 08:15:14,232 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:15:14,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:15:14,234 INFO L168 Benchmark]: Toolchain (without parser) took 33254.89 ms. Allocated memory was 60.8 MB in the beginning and 100.7 MB in the end (delta: 39.8 MB). Free memory was 39.4 MB in the beginning and 54.8 MB in the end (delta: -15.4 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,234 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 60.8 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:15:14,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.54 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 27.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,235 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.98 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 27.5 MB in the beginning and 64.8 MB in the end (delta: -37.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,236 INFO L168 Benchmark]: Boogie Preprocessor took 50.11 ms. Allocated memory is still 83.9 MB. Free memory was 64.8 MB in the beginning and 62.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,236 INFO L168 Benchmark]: RCFGBuilder took 2913.58 ms. Allocated memory is still 83.9 MB. Free memory was 62.0 MB in the beginning and 61.6 MB in the end (delta: 445.4 kB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,237 INFO L168 Benchmark]: TraceAbstraction took 29333.15 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 61.2 MB in the beginning and 64.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,237 INFO L168 Benchmark]: Witness Printer took 115.61 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 54.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:14,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 60.8 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 710.54 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 27.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 124.98 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 27.5 MB in the beginning and 64.8 MB in the end (delta: -37.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.11 ms. Allocated memory is still 83.9 MB. Free memory was 64.8 MB in the beginning and 62.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2913.58 ms. Allocated memory is still 83.9 MB. Free memory was 62.0 MB in the beginning and 61.6 MB in the end (delta: 445.4 kB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 29333.15 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 61.2 MB in the beginning and 64.3 MB in the end (delta: -3.1 MB). Peak memory consumption was 58.2 MB. Max. memory is 16.1 GB. * Witness Printer took 115.61 ms. Allocated memory is still 100.7 MB. Free memory was 64.3 MB in the beginning and 54.8 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 978]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 978]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 978]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 121 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 29207.4ms, OverallIterations: 13, TraceHistogramMax: 2, EmptinessCheckTime: 39.5ms, AutomataDifference: 9276.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 7068.8ms, InitialAbstractionConstructionTime: 15.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1256 SDtfs, 1664 SDslu, 2271 SDs, 0 SdLazy, 270 SolverSat, 57 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8282.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1141 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 386.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=316occurred in iteration=10, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 339.3ms AutomataMinimizationTime, 13 MinimizatonAttempts, 1028 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 186 NumberOfFragments, 949 HoareAnnotationTreeSize, 44 FomulaSimplifications, 596975 FormulaSimplificationTreeSizeReduction, 1825.3ms HoareSimplificationTime, 44 FomulaSimplificationsInter, 137278 FormulaSimplificationTreeSizeReductionInter, 5226.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 342.6ms SsaConstructionTime, 1839.7ms SatisfiabilityAnalysisTime, 4455.2ms InterpolantComputationTime, 574 NumberOfCodeBlocks, 574 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1118 ConstructedInterpolants, 0 QuantifiedInterpolants, 2315 SizeOfPredicates, 29 NumberOfNonLiveVariables, 3330 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 30 InterpolantComputations, 24 PerfectInterpolantSequences, 148/184 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && 0bv32 == \result) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((((splverifierCounter == 0bv32 && 0bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((((splverifierCounter == 0bv32 && tmp == 0bv32) && !(tmp == 0bv32)) && tmp___0 == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(tmp == 0bv32)) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && !(tmp == 0bv32)) && \result == 1bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 513]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 169]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 350]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && systemActive == 1bv32) && waterLevel == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32)) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && systemActive == 1bv32) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methAndRunningLastTime == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 159]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && 1bv32 == \result) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && ~bvslt32(waterLevel, 2bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:15:14,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6886cbcf-273d-4670-80b1-351d1292d358/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...