./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26f7660d8ab24b35503e9d3e9f36c3801ecfd446 ............................................................................................................................................ 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_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26f7660d8ab24b35503e9d3e9f36c3801ecfd446 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:12,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:12,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:12,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:12,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:12,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:12,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:12,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:12,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:12,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:12,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:12,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:12,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:12,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:12,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:12,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:12,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:12,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:12,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:12,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:12,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:12,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:12,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:12,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:12,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:12,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:12,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:12,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:12,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:12,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:12,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:12,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:12,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:12,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:12,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:12,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:12,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:12,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:12,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:12,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:12,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:12,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:12,402 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:12,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:12,403 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:12,403 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:12,404 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:12,404 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:12,404 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:12,404 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:12,405 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:12,405 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:12,405 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:12,405 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:12,406 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:12,406 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:12,406 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:12,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:12,407 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:12,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:12,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:12,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:12,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:12,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:12,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:12,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:12,409 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:12,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:12,410 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:12,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:12,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:12,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:12,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:12,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:12,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:12,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:12,412 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:12,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:12,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:12,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:12,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:12,413 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_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26f7660d8ab24b35503e9d3e9f36c3801ecfd446 [2021-10-11 02:31:12,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:12,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:12,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:12,721 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:12,722 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:12,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-10-11 02:31:12,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/694d7566b/2b1f5aa049b349d491c5f03c98731f24/FLAG1e31ea21c [2021-10-11 02:31:13,371 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:13,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-10-11 02:31:13,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/694d7566b/2b1f5aa049b349d491c5f03c98731f24/FLAG1e31ea21c [2021-10-11 02:31:13,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/694d7566b/2b1f5aa049b349d491c5f03c98731f24 [2021-10-11 02:31:13,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:13,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:13,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:13,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:13,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:13,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297880c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:13, skipping insertion in model container [2021-10-11 02:31:13,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:13" (1/1) ... [2021-10-11 02:31:13,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:13,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:14,186 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[18716,18729] [2021-10-11 02:31:14,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:14,218 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:31:14,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@dad38ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:14, skipping insertion in model container [2021-10-11 02:31:14,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:14,220 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:31:14,223 INFO L168 Benchmark]: Toolchain (without parser) took 519.95 ms. Allocated memory is still 98.6 MB. Free memory was 69.1 MB in the beginning and 72.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:14,225 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 56.8 MB in the beginning and 56.8 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:14,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.94 ms. Allocated memory is still 98.6 MB. Free memory was 68.8 MB in the beginning and 72.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:14,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory was 56.8 MB in the beginning and 56.8 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.94 ms. Allocated memory is still 98.6 MB. Free memory was 68.8 MB in the beginning and 72.2 MB in the end (delta: -3.4 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: 643]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:16,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:16,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:16,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:16,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:16,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:16,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:16,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:16,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:16,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:16,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:16,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:16,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:16,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:16,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:16,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:16,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:16,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:16,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:16,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:16,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:16,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:16,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:16,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:16,986 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:16,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:16,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:16,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:16,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:16,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:16,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:16,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:16,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:16,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:17,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:17,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:17,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:17,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:17,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:17,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:17,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:17,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:31:17,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:17,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:17,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:17,054 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:17,054 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:17,055 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:17,055 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:17,055 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:17,055 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:17,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:17,058 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:17,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:17,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:17,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:17,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:17,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:17,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:17,060 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:31:17,060 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:31:17,061 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:17,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:17,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:17,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:17,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:17,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:31:17,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:17,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:17,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:17,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:17,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:17,063 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:31:17,064 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:17,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:17,064 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:17,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:17,065 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_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26f7660d8ab24b35503e9d3e9f36c3801ecfd446 [2021-10-11 02:31:17,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:17,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:17,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:17,501 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:17,501 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:17,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-10-11 02:31:17,586 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/3f01d6960/ac12ecd9de4344acab931857f42e557f/FLAG661fc0c4f [2021-10-11 02:31:18,325 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:18,326 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-10-11 02:31:18,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/3f01d6960/ac12ecd9de4344acab931857f42e557f/FLAG661fc0c4f [2021-10-11 02:31:18,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/data/3f01d6960/ac12ecd9de4344acab931857f42e557f [2021-10-11 02:31:18,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:18,554 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:18,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:18,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:18,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:18,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:18" (1/1) ... [2021-10-11 02:31:18,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2330a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:18, skipping insertion in model container [2021-10-11 02:31:18,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:18" (1/1) ... [2021-10-11 02:31:18,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:18,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:19,010 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[18716,18729] [2021-10-11 02:31:19,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:19,035 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:31:19,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:19,198 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[18716,18729] [2021-10-11 02:31:19,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:19,213 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:19,325 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[18716,18729] [2021-10-11 02:31:19,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:19,369 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:19,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19 WrapperNode [2021-10-11 02:31:19,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:19,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:19,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:19,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:19,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:19,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:19,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:19,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:19,509 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... [2021-10-11 02:31:19,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:19,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:19,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:19,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:19,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:31:19,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:19,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:21,920 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:21,921 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-10-11 02:31:21,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:21 BoogieIcfgContainer [2021-10-11 02:31:21,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:21,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:21,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:21,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:21,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:18" (1/3) ... [2021-10-11 02:31:21,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d769b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:21, skipping insertion in model container [2021-10-11 02:31:21,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:19" (2/3) ... [2021-10-11 02:31:21,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d769b62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:21, skipping insertion in model container [2021-10-11 02:31:21,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:21" (3/3) ... [2021-10-11 02:31:21,931 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2021-10-11 02:31:21,944 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:21,948 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:31:21,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:31:21,992 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:21,993 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:21,993 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:21,993 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:21,993 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:22,008 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:22,008 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:22,009 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2021-10-11 02:31:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:31:22,064 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:22,065 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:22,065 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:22,071 INFO L82 PathProgramCache]: Analyzing trace with hash -859371484, now seen corresponding path program 1 times [2021-10-11 02:31:22,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:22,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780271525] [2021-10-11 02:31:22,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:22,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:31:22,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:22,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:22,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780271525] [2021-10-11 02:31:22,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:22,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:22,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430310747] [2021-10-11 02:31:22,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:31:22,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:22,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:31:22,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:31:22,463 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 2 states. [2021-10-11 02:31:22,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:22,534 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2021-10-11 02:31:22,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:31:22,536 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 02:31:22,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:22,549 INFO L225 Difference]: With dead ends: 271 [2021-10-11 02:31:22,550 INFO L226 Difference]: Without dead ends: 135 [2021-10-11 02:31:22,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:31:22,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-11 02:31:22,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-10-11 02:31:22,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-10-11 02:31:22,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 196 transitions. [2021-10-11 02:31:22,625 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 196 transitions. Word has length 18 [2021-10-11 02:31:22,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:22,625 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 196 transitions. [2021-10-11 02:31:22,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:31:22,626 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 196 transitions. [2021-10-11 02:31:22,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:31:22,627 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:22,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:22,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:31:22,843 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:22,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:22,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1078207453, now seen corresponding path program 1 times [2021-10-11 02:31:22,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:22,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065645785] [2021-10-11 02:31:22,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:23,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:23,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:23,085 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:23,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065645785] [2021-10-11 02:31:23,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:23,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:23,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511762150] [2021-10-11 02:31:23,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:23,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:23,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:23,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:23,088 INFO L87 Difference]: Start difference. First operand 135 states and 196 transitions. Second operand 3 states. [2021-10-11 02:31:23,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:23,099 INFO L93 Difference]: Finished difference Result 135 states and 196 transitions. [2021-10-11 02:31:23,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:23,100 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:31:23,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:23,101 INFO L225 Difference]: With dead ends: 135 [2021-10-11 02:31:23,101 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 02:31:23,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:23,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 02:31:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-11 02:31:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-11 02:31:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-10-11 02:31:23,108 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2021-10-11 02:31:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:23,108 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-10-11 02:31:23,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-10-11 02:31:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:31:23,109 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:23,109 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:23,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:31:23,325 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:23,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:23,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1475398090, now seen corresponding path program 1 times [2021-10-11 02:31:23,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:23,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745860323] [2021-10-11 02:31:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:23,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:23,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:23,560 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:23,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745860323] [2021-10-11 02:31:23,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:23,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:23,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331273920] [2021-10-11 02:31:23,565 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:23,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:23,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:23,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:23,566 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 3 states. [2021-10-11 02:31:23,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:23,588 INFO L93 Difference]: Finished difference Result 103 states and 151 transitions. [2021-10-11 02:31:23,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:23,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:31:23,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:23,591 INFO L225 Difference]: With dead ends: 103 [2021-10-11 02:31:23,591 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 02:31:23,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:23,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 02:31:23,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-11 02:31:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-10-11 02:31:23,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2021-10-11 02:31:23,598 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 24 [2021-10-11 02:31:23,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:23,599 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2021-10-11 02:31:23,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:23,599 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2021-10-11 02:31:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:31:23,600 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:23,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:23,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:31:23,801 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash 597219871, now seen corresponding path program 1 times [2021-10-11 02:31:23,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:23,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423290941] [2021-10-11 02:31:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:23,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:23,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:24,019 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:24,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423290941] [2021-10-11 02:31:24,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:24,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:24,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536856023] [2021-10-11 02:31:24,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:24,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:24,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:24,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:24,024 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand 3 states. [2021-10-11 02:31:24,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:24,101 INFO L93 Difference]: Finished difference Result 125 states and 181 transitions. [2021-10-11 02:31:24,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:24,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 02:31:24,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:24,106 INFO L225 Difference]: With dead ends: 125 [2021-10-11 02:31:24,106 INFO L226 Difference]: Without dead ends: 77 [2021-10-11 02:31:24,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-11 02:31:24,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2021-10-11 02:31:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2021-10-11 02:31:24,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 106 transitions. [2021-10-11 02:31:24,127 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 106 transitions. Word has length 26 [2021-10-11 02:31:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:24,129 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 106 transitions. [2021-10-11 02:31:24,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 106 transitions. [2021-10-11 02:31:24,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:31:24,132 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:24,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:24,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:31:24,350 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:24,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:24,350 INFO L82 PathProgramCache]: Analyzing trace with hash -105705555, now seen corresponding path program 1 times [2021-10-11 02:31:24,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:24,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205465720] [2021-10-11 02:31:24,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:24,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:24,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:24,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:24,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:24,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205465720] [2021-10-11 02:31:24,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:24,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:24,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396865032] [2021-10-11 02:31:24,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:24,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:24,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:24,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:24,619 INFO L87 Difference]: Start difference. First operand 75 states and 106 transitions. Second operand 3 states. [2021-10-11 02:31:24,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:24,665 INFO L93 Difference]: Finished difference Result 194 states and 279 transitions. [2021-10-11 02:31:24,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:24,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 02:31:24,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:24,668 INFO L225 Difference]: With dead ends: 194 [2021-10-11 02:31:24,668 INFO L226 Difference]: Without dead ends: 126 [2021-10-11 02:31:24,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:24,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-11 02:31:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2021-10-11 02:31:24,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-10-11 02:31:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 175 transitions. [2021-10-11 02:31:24,696 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 175 transitions. Word has length 32 [2021-10-11 02:31:24,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:24,696 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 175 transitions. [2021-10-11 02:31:24,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 175 transitions. [2021-10-11 02:31:24,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:31:24,703 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:24,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:24,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:31:24,918 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:24,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:24,919 INFO L82 PathProgramCache]: Analyzing trace with hash 481100459, now seen corresponding path program 1 times [2021-10-11 02:31:24,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:24,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770531333] [2021-10-11 02:31:24,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:25,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:25,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:25,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:25,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:25,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770531333] [2021-10-11 02:31:25,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:25,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:25,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018051038] [2021-10-11 02:31:25,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:25,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:25,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:25,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:25,206 INFO L87 Difference]: Start difference. First operand 124 states and 175 transitions. Second operand 5 states. [2021-10-11 02:31:25,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:25,375 INFO L93 Difference]: Finished difference Result 622 states and 885 transitions. [2021-10-11 02:31:25,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:31:25,376 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 02:31:25,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:25,379 INFO L225 Difference]: With dead ends: 622 [2021-10-11 02:31:25,380 INFO L226 Difference]: Without dead ends: 505 [2021-10-11 02:31:25,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:31:25,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-10-11 02:31:25,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 227. [2021-10-11 02:31:25,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2021-10-11 02:31:25,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 314 transitions. [2021-10-11 02:31:25,404 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 314 transitions. Word has length 32 [2021-10-11 02:31:25,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:25,405 INFO L481 AbstractCegarLoop]: Abstraction has 227 states and 314 transitions. [2021-10-11 02:31:25,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:25,405 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 314 transitions. [2021-10-11 02:31:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:31:25,406 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:25,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:25,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:31:25,618 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:25,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:25,619 INFO L82 PathProgramCache]: Analyzing trace with hash 480943923, now seen corresponding path program 1 times [2021-10-11 02:31:25,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:25,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739104180] [2021-10-11 02:31:25,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:25,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:25,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:25,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:25,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:25,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739104180] [2021-10-11 02:31:25,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:25,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:25,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824341264] [2021-10-11 02:31:25,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:25,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:25,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:25,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:25,910 INFO L87 Difference]: Start difference. First operand 227 states and 314 transitions. Second operand 5 states. [2021-10-11 02:31:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:26,121 INFO L93 Difference]: Finished difference Result 865 states and 1197 transitions. [2021-10-11 02:31:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:31:26,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-10-11 02:31:26,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:26,127 INFO L225 Difference]: With dead ends: 865 [2021-10-11 02:31:26,127 INFO L226 Difference]: Without dead ends: 645 [2021-10-11 02:31:26,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:31:26,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2021-10-11 02:31:26,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 225. [2021-10-11 02:31:26,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2021-10-11 02:31:26,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 308 transitions. [2021-10-11 02:31:26,170 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 308 transitions. Word has length 33 [2021-10-11 02:31:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:26,171 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 308 transitions. [2021-10-11 02:31:26,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:26,171 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 308 transitions. [2021-10-11 02:31:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-11 02:31:26,174 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:26,174 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:26,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:31:26,394 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:26,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:26,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1552355764, now seen corresponding path program 1 times [2021-10-11 02:31:26,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:26,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640789603] [2021-10-11 02:31:26,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:26,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:26,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:26,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:26,646 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:26,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640789603] [2021-10-11 02:31:26,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:26,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:26,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072555117] [2021-10-11 02:31:26,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:26,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:26,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:26,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:26,649 INFO L87 Difference]: Start difference. First operand 225 states and 308 transitions. Second operand 5 states. [2021-10-11 02:31:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:26,758 INFO L93 Difference]: Finished difference Result 609 states and 825 transitions. [2021-10-11 02:31:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:31:26,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2021-10-11 02:31:26,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:26,763 INFO L225 Difference]: With dead ends: 609 [2021-10-11 02:31:26,763 INFO L226 Difference]: Without dead ends: 391 [2021-10-11 02:31:26,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:31:26,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-10-11 02:31:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 243. [2021-10-11 02:31:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2021-10-11 02:31:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 326 transitions. [2021-10-11 02:31:26,790 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 326 transitions. Word has length 36 [2021-10-11 02:31:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:26,790 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 326 transitions. [2021-10-11 02:31:26,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 326 transitions. [2021-10-11 02:31:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-11 02:31:26,807 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:26,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:27,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:31:27,028 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:27,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:27,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1731494282, now seen corresponding path program 1 times [2021-10-11 02:31:27,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:27,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483861246] [2021-10-11 02:31:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:27,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:31:27,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:27,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:27,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [483861246] [2021-10-11 02:31:27,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:27,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:27,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505100872] [2021-10-11 02:31:27,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:31:27,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:27,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:31:27,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:31:27,313 INFO L87 Difference]: Start difference. First operand 243 states and 326 transitions. Second operand 4 states. [2021-10-11 02:31:27,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:27,387 INFO L93 Difference]: Finished difference Result 512 states and 682 transitions. [2021-10-11 02:31:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:31:27,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2021-10-11 02:31:27,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:27,391 INFO L225 Difference]: With dead ends: 512 [2021-10-11 02:31:27,391 INFO L226 Difference]: Without dead ends: 276 [2021-10-11 02:31:27,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:27,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-10-11 02:31:27,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 204. [2021-10-11 02:31:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2021-10-11 02:31:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 267 transitions. [2021-10-11 02:31:27,419 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 267 transitions. Word has length 36 [2021-10-11 02:31:27,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:27,419 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 267 transitions. [2021-10-11 02:31:27,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:31:27,419 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 267 transitions. [2021-10-11 02:31:27,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 02:31:27,420 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:27,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:27,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:31:27,639 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:27,641 INFO L82 PathProgramCache]: Analyzing trace with hash -764052856, now seen corresponding path program 1 times [2021-10-11 02:31:27,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:27,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095023596] [2021-10-11 02:31:27,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:27,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:27,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:27,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:27,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2095023596] [2021-10-11 02:31:27,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:27,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:31:27,962 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672834660] [2021-10-11 02:31:27,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:27,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:27,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:27,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:27,963 INFO L87 Difference]: Start difference. First operand 204 states and 267 transitions. Second operand 6 states. [2021-10-11 02:31:29,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:29,599 INFO L93 Difference]: Finished difference Result 615 states and 805 transitions. [2021-10-11 02:31:29,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:31:29,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-10-11 02:31:29,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:29,602 INFO L225 Difference]: With dead ends: 615 [2021-10-11 02:31:29,603 INFO L226 Difference]: Without dead ends: 418 [2021-10-11 02:31:29,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:31:29,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-10-11 02:31:29,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 204. [2021-10-11 02:31:29,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2021-10-11 02:31:29,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 262 transitions. [2021-10-11 02:31:29,637 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 262 transitions. Word has length 37 [2021-10-11 02:31:29,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:29,637 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 262 transitions. [2021-10-11 02:31:29,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:29,637 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 262 transitions. [2021-10-11 02:31:29,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-11 02:31:29,639 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:29,639 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:29,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:31:29,855 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:29,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:29,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1177012586, now seen corresponding path program 1 times [2021-10-11 02:31:29,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:29,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133073450] [2021-10-11 02:31:29,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:30,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:30,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:30,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:31:30,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:30,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133073450] [2021-10-11 02:31:30,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:30,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:30,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283105532] [2021-10-11 02:31:30,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:30,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:30,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:30,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:30,157 INFO L87 Difference]: Start difference. First operand 204 states and 262 transitions. Second operand 5 states. [2021-10-11 02:31:30,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:30,253 INFO L93 Difference]: Finished difference Result 482 states and 633 transitions. [2021-10-11 02:31:30,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:31:30,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2021-10-11 02:31:30,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:30,257 INFO L225 Difference]: With dead ends: 482 [2021-10-11 02:31:30,257 INFO L226 Difference]: Without dead ends: 335 [2021-10-11 02:31:30,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:31:30,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-10-11 02:31:30,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 210. [2021-10-11 02:31:30,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2021-10-11 02:31:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 268 transitions. [2021-10-11 02:31:30,288 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 268 transitions. Word has length 58 [2021-10-11 02:31:30,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:30,289 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 268 transitions. [2021-10-11 02:31:30,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 268 transitions. [2021-10-11 02:31:30,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-11 02:31:30,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:30,290 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:30,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:31:30,503 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:30,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:30,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1435178024, now seen corresponding path program 1 times [2021-10-11 02:31:30,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:30,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8187219] [2021-10-11 02:31:30,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:30,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:30,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:30,813 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:30,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:30,851 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:31:30,851 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:31:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:30,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [8187219] [2021-10-11 02:31:30,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [733617223] [2021-10-11 02:31:30,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:31,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:31,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:31,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:31,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:31:31,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2021-10-11 02:31:31,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128082687] [2021-10-11 02:31:31,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:31,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:31,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:31,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:31:31,240 INFO L87 Difference]: Start difference. First operand 210 states and 268 transitions. Second operand 3 states. [2021-10-11 02:31:31,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:31,311 INFO L93 Difference]: Finished difference Result 331 states and 425 transitions. [2021-10-11 02:31:31,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:31,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2021-10-11 02:31:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:31,314 INFO L225 Difference]: With dead ends: 331 [2021-10-11 02:31:31,314 INFO L226 Difference]: Without dead ends: 329 [2021-10-11 02:31:31,314 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:31:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-10-11 02:31:31,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 236. [2021-10-11 02:31:31,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 02:31:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 307 transitions. [2021-10-11 02:31:31,365 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 307 transitions. Word has length 58 [2021-10-11 02:31:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:31,365 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 307 transitions. [2021-10-11 02:31:31,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:31,366 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 307 transitions. [2021-10-11 02:31:31,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-11 02:31:31,367 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:31,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:31,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt,13 mathsat -unsat_core_generation=3 [2021-10-11 02:31:31,770 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:31,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:31,771 INFO L82 PathProgramCache]: Analyzing trace with hash 200937625, now seen corresponding path program 1 times [2021-10-11 02:31:31,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:31,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370889980] [2021-10-11 02:31:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:32,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:32,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:32,144 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:31:32,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:32,186 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:31:32,186 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:31:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:31:32,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370889980] [2021-10-11 02:31:32,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1374510699] [2021-10-11 02:31:32,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:32,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:31:32,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:32,777 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:31:32,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:32,834 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:31:32,834 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:31:32,902 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:31:32,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391260564] [2021-10-11 02:31:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:33,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:31:33,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:33,289 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:31:33,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:33,322 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2021-10-11 02:31:33,322 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:31:33,465 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:31:33,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-11 02:31:33,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 14 [2021-10-11 02:31:33,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263894185] [2021-10-11 02:31:33,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:31:33,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:33,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:31:33,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:31:33,469 INFO L87 Difference]: Start difference. First operand 236 states and 307 transitions. Second operand 8 states. [2021-10-11 02:31:37,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:37,303 INFO L93 Difference]: Finished difference Result 1253 states and 1654 transitions. [2021-10-11 02:31:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-11 02:31:37,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2021-10-11 02:31:37,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:37,311 INFO L225 Difference]: With dead ends: 1253 [2021-10-11 02:31:37,311 INFO L226 Difference]: Without dead ends: 1074 [2021-10-11 02:31:37,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2021-10-11 02:31:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2021-10-11 02:31:37,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 291. [2021-10-11 02:31:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2021-10-11 02:31:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 391 transitions. [2021-10-11 02:31:37,364 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 391 transitions. Word has length 82 [2021-10-11 02:31:37,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:37,364 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 391 transitions. [2021-10-11 02:31:37,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:31:37,365 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 391 transitions. [2021-10-11 02:31:37,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-11 02:31:37,366 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:37,366 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:37,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt,15 mathsat -unsat_core_generation=3,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:37,973 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:37,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:37,974 INFO L82 PathProgramCache]: Analyzing trace with hash 252580901, now seen corresponding path program 1 times [2021-10-11 02:31:37,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:37,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801494480] [2021-10-11 02:31:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:38,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:31:38,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:38,247 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-11 02:31:38,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-11 02:31:38,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801494480] [2021-10-11 02:31:38,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1777408894] [2021-10-11 02:31:38,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:38,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:38,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:38,600 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-11 02:31:38,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:38,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:31:38,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 6 [2021-10-11 02:31:38,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335560919] [2021-10-11 02:31:38,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:38,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:38,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:38,606 INFO L87 Difference]: Start difference. First operand 291 states and 391 transitions. Second operand 3 states. [2021-10-11 02:31:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:40,068 INFO L93 Difference]: Finished difference Result 438 states and 582 transitions. [2021-10-11 02:31:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:40,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2021-10-11 02:31:40,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:40,069 INFO L225 Difference]: With dead ends: 438 [2021-10-11 02:31:40,070 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:40,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:40,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:40,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:40,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:40,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2021-10-11 02:31:40,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:40,071 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:40,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:40,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:40,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:40,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,19 cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:40,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:40,618 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2021-10-11 02:31:40,998 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 133 [2021-10-11 02:31:41,527 WARN L197 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 146 [2021-10-11 02:31:41,890 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 96 [2021-10-11 02:31:42,148 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 121 [2021-10-11 02:31:42,391 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 133 [2021-10-11 02:31:42,933 WARN L197 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 168 [2021-10-11 02:31:43,286 WARN L197 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 176 [2021-10-11 02:31:43,829 WARN L197 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 173 [2021-10-11 02:31:43,944 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2021-10-11 02:31:44,980 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 129 DAG size of output: 32 [2021-10-11 02:31:46,031 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 142 DAG size of output: 29 [2021-10-11 02:31:46,339 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 18 [2021-10-11 02:31:47,028 WARN L197 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 25 [2021-10-11 02:31:47,214 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 26 [2021-10-11 02:31:47,749 WARN L197 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 27 [2021-10-11 02:31:47,879 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2021-10-11 02:31:48,761 WARN L197 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 36 [2021-10-11 02:31:48,923 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 28 [2021-10-11 02:31:50,525 WARN L197 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 166 DAG size of output: 23 [2021-10-11 02:31:52,032 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 173 DAG size of output: 29 [2021-10-11 02:31:53,781 WARN L197 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 172 DAG size of output: 24 [2021-10-11 02:31:53,808 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 985) no Hoare annotation was computed. [2021-10-11 02:31:53,808 INFO L258 CegarLoopResult]: At program point L300(lines 295 302) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,808 INFO L262 CegarLoopResult]: For program point L400(lines 400 417) no Hoare annotation was computed. [2021-10-11 02:31:53,808 INFO L262 CegarLoopResult]: For program point L400-1(lines 400 417) no Hoare annotation was computed. [2021-10-11 02:31:53,808 INFO L262 CegarLoopResult]: For program point L400-2(lines 400 417) no Hoare annotation was computed. [2021-10-11 02:31:53,808 INFO L258 CegarLoopResult]: At program point L203-2(lines 203 217) the Hoare annotation is: false [2021-10-11 02:31:53,808 INFO L262 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L171(lines 171 177) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L171-1(lines 171 177) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L171-2(lines 171 177) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L171-3(lines 171 177) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L171-4(lines 171 177) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L171-5(lines 171 177) no Hoare annotation was computed. [2021-10-11 02:31:53,809 INFO L262 CegarLoopResult]: For program point L106(lines 106 110) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L437(lines 437 443) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L404(lines 404 412) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L437-2(lines 437 443) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L404-1(lines 404 412) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L404-2(lines 404 412) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L437-4(lines 437 443) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L437-6(lines 437 443) no Hoare annotation was computed. [2021-10-11 02:31:53,810 INFO L262 CegarLoopResult]: For program point L437-8(lines 437 443) no Hoare annotation was computed. [2021-10-11 02:31:53,811 INFO L262 CegarLoopResult]: For program point L437-10(lines 437 443) no Hoare annotation was computed. [2021-10-11 02:31:53,811 INFO L262 CegarLoopResult]: For program point L570(lines 570 576) no Hoare annotation was computed. [2021-10-11 02:31:53,811 INFO L258 CegarLoopResult]: At program point L570-1(lines 570 576) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4 .cse2 .cse3 (not (bvslt ~waterLevel~0 (_ bv2 32)))))) [2021-10-11 02:31:53,811 INFO L258 CegarLoopResult]: At program point L471(lines 466 474) the Hoare annotation is: (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,811 INFO L258 CegarLoopResult]: At program point L471-1(lines 466 474) the Hoare annotation is: false [2021-10-11 02:31:53,812 INFO L258 CegarLoopResult]: At program point L471-2(lines 466 474) the Hoare annotation is: false [2021-10-11 02:31:53,812 INFO L262 CegarLoopResult]: For program point L207(lines 207 211) no Hoare annotation was computed. [2021-10-11 02:31:53,812 INFO L262 CegarLoopResult]: For program point L207-1(lines 342 348) no Hoare annotation was computed. [2021-10-11 02:31:53,812 INFO L258 CegarLoopResult]: At program point L75(lines 70 78) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,812 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 985) no Hoare annotation was computed. [2021-10-11 02:31:53,812 INFO L262 CegarLoopResult]: For program point L539(lines 539 543) no Hoare annotation was computed. [2021-10-11 02:31:53,812 INFO L262 CegarLoopResult]: For program point L539-2(lines 539 543) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L539-3(lines 539 543) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L374(lines 374 391) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L539-5(lines 539 543) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L374-1(lines 374 391) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L539-6(lines 539 543) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L374-2(lines 374 391) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L374-3(lines 374 391) no Hoare annotation was computed. [2021-10-11 02:31:53,813 INFO L262 CegarLoopResult]: For program point L539-8(lines 539 543) no Hoare annotation was computed. [2021-10-11 02:31:53,814 INFO L262 CegarLoopResult]: For program point L374-4(lines 374 391) no Hoare annotation was computed. [2021-10-11 02:31:53,814 INFO L262 CegarLoopResult]: For program point L374-5(lines 374 391) no Hoare annotation was computed. [2021-10-11 02:31:53,814 INFO L258 CegarLoopResult]: At program point L176(lines 167 180) the Hoare annotation is: false [2021-10-11 02:31:53,814 INFO L258 CegarLoopResult]: At program point L176-1(lines 167 180) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (bvadd |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv4294967295 32)) (_ bv0 32))) (.cse6 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse5) (and .cse6 .cse0 .cse1 .cse3 .cse4) (and .cse6 .cse0 .cse1 .cse3 .cse5))) [2021-10-11 02:31:53,814 INFO L258 CegarLoopResult]: At program point L176-2(lines 167 180) the Hoare annotation is: false [2021-10-11 02:31:53,814 INFO L258 CegarLoopResult]: At program point L176-3(lines 167 180) the Hoare annotation is: false [2021-10-11 02:31:53,814 INFO L258 CegarLoopResult]: At program point L176-4(lines 167 180) the Hoare annotation is: false [2021-10-11 02:31:53,815 INFO L258 CegarLoopResult]: At program point L176-5(lines 167 180) the Hoare annotation is: false [2021-10-11 02:31:53,815 INFO L258 CegarLoopResult]: At program point L606(lines 559 607) the Hoare annotation is: false [2021-10-11 02:31:53,815 INFO L258 CegarLoopResult]: At program point L342(lines 341 360) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse3) (and .cse0 .cse5 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse3))) [2021-10-11 02:31:53,815 INFO L262 CegarLoopResult]: For program point L342-1(lines 342 348) no Hoare annotation was computed. [2021-10-11 02:31:53,815 INFO L258 CegarLoopResult]: At program point L342-2(lines 341 360) the Hoare annotation is: false [2021-10-11 02:31:53,815 INFO L258 CegarLoopResult]: At program point L342-3(lines 341 360) the Hoare annotation is: false [2021-10-11 02:31:53,816 INFO L262 CegarLoopResult]: For program point L311(lines 311 328) no Hoare annotation was computed. [2021-10-11 02:31:53,816 INFO L262 CegarLoopResult]: For program point L278(lines 278 285) no Hoare annotation was computed. [2021-10-11 02:31:53,816 INFO L258 CegarLoopResult]: At program point L311-1(lines 1 988) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1)) (.cse2 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) .cse3 .cse4 .cse5 .cse6) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 (not (bvslt ~waterLevel~0 (_ bv2 32)))))) [2021-10-11 02:31:53,816 INFO L262 CegarLoopResult]: For program point L311-2(lines 311 328) no Hoare annotation was computed. [2021-10-11 02:31:53,816 INFO L265 CegarLoopResult]: At program point L278-1(lines 278 285) the Hoare annotation is: true [2021-10-11 02:31:53,816 INFO L258 CegarLoopResult]: At program point L311-3(lines 1 988) the Hoare annotation is: false [2021-10-11 02:31:53,816 INFO L262 CegarLoopResult]: For program point L311-4(lines 311 328) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L258 CegarLoopResult]: At program point L311-5(lines 1 988) the Hoare annotation is: false [2021-10-11 02:31:53,817 INFO L262 CegarLoopResult]: For program point L378(lines 378 386) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L262 CegarLoopResult]: For program point L378-1(lines 378 386) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L262 CegarLoopResult]: For program point L378-2(lines 378 386) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L262 CegarLoopResult]: For program point L378-3(lines 378 386) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L262 CegarLoopResult]: For program point L378-4(lines 378 386) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L262 CegarLoopResult]: For program point L378-5(lines 378 386) no Hoare annotation was computed. [2021-10-11 02:31:53,817 INFO L258 CegarLoopResult]: At program point L545(lines 530 548) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (or (not (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32))) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)))) (.cse2 (= ULTIMATE.start_isLowWaterLevel_~tmp~6 (_ bv0 32))) (.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (= (_ bv0 32) (bvadd ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv4294967295 32)))) (.cse5 (= (bvadd |ULTIMATE.start_isLowWaterLevel_#res| (_ bv4294967295 32)) (_ bv0 32)))) (or (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse4 .cse3 .cse5))) [2021-10-11 02:31:53,817 INFO L258 CegarLoopResult]: At program point L545-1(lines 530 548) the Hoare annotation is: false [2021-10-11 02:31:53,817 INFO L258 CegarLoopResult]: At program point L545-2(lines 530 548) the Hoare annotation is: false [2021-10-11 02:31:53,818 INFO L262 CegarLoopResult]: For program point L315(lines 315 325) no Hoare annotation was computed. [2021-10-11 02:31:53,818 INFO L262 CegarLoopResult]: For program point L315-2(lines 315 325) no Hoare annotation was computed. [2021-10-11 02:31:53,818 INFO L262 CegarLoopResult]: For program point L315-4(lines 315 325) no Hoare annotation was computed. [2021-10-11 02:31:53,818 INFO L262 CegarLoopResult]: For program point L580(lines 580 586) no Hoare annotation was computed. [2021-10-11 02:31:53,818 INFO L258 CegarLoopResult]: At program point L580-1(lines 580 586) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse5 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse4 .cse5) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse1 .cse6 .cse4 .cse5))) [2021-10-11 02:31:53,818 INFO L258 CegarLoopResult]: At program point L349(lines 349 355) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 .cse3))) [2021-10-11 02:31:53,818 INFO L262 CegarLoopResult]: For program point L316(lines 316 322) no Hoare annotation was computed. [2021-10-11 02:31:53,819 INFO L258 CegarLoopResult]: At program point L349-1(lines 349 355) the Hoare annotation is: false [2021-10-11 02:31:53,819 INFO L258 CegarLoopResult]: At program point L349-2(lines 349 355) the Hoare annotation is: false [2021-10-11 02:31:53,819 INFO L262 CegarLoopResult]: For program point L316-2(lines 316 322) no Hoare annotation was computed. [2021-10-11 02:31:53,819 INFO L262 CegarLoopResult]: For program point L316-4(lines 316 322) no Hoare annotation was computed. [2021-10-11 02:31:53,819 INFO L262 CegarLoopResult]: For program point L118(lines 118 122) no Hoare annotation was computed. [2021-10-11 02:31:53,819 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,819 INFO L258 CegarLoopResult]: At program point L252(lines 248 254) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,819 INFO L258 CegarLoopResult]: At program point L186(lines 181 189) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse2 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 .cse2 .cse3))) [2021-10-11 02:31:53,819 INFO L258 CegarLoopResult]: At program point L186-1(lines 181 189) the Hoare annotation is: false [2021-10-11 02:31:53,819 INFO L258 CegarLoopResult]: At program point L186-2(lines 181 189) the Hoare annotation is: false [2021-10-11 02:31:53,820 INFO L265 CegarLoopResult]: At program point L287(lines 268 290) the Hoare annotation is: true [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-2(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-3(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-5(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-6(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-8(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-9(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-11(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-12(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-14(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-15(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L520-17(lines 520 524) no Hoare annotation was computed. [2021-10-11 02:31:53,820 INFO L262 CegarLoopResult]: For program point L985(line 985) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point L985-1(line 985) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point L985-2(line 985) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point L94-3(lines 94 98) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point L94-6(lines 94 98) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L262 CegarLoopResult]: For program point L590(lines 590 601) no Hoare annotation was computed. [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L526(lines 511 529) the Hoare annotation is: false [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L526-1(lines 511 529) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse4 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse7 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse3 .cse6 .cse5 .cse7) (and .cse1 .cse2 .cse3 .cse4 .cse6 .cse5) (and .cse0 .cse1 .cse3 .cse5 .cse7))) [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L526-2(lines 511 529) the Hoare annotation is: false [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L526-3(lines 511 529) the Hoare annotation is: false [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L526-4(lines 511 529) the Hoare annotation is: false [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L526-5(lines 511 529) the Hoare annotation is: false [2021-10-11 02:31:53,821 INFO L258 CegarLoopResult]: At program point L131(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,822 INFO L258 CegarLoopResult]: At program point L131-1(lines 126 134) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse2 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse2))) [2021-10-11 02:31:53,822 INFO L258 CegarLoopResult]: At program point L131-2(lines 126 134) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse4 .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3))) [2021-10-11 02:31:53,822 INFO L258 CegarLoopResult]: At program point L131-3(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,822 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,822 INFO L258 CegarLoopResult]: At program point L131-4(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,822 INFO L258 CegarLoopResult]: At program point L131-5(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,823 INFO L258 CegarLoopResult]: At program point L131-6(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,823 INFO L258 CegarLoopResult]: At program point L131-7(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,823 INFO L258 CegarLoopResult]: At program point L131-8(lines 126 134) the Hoare annotation is: false [2021-10-11 02:31:53,823 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 985) no Hoare annotation was computed. [2021-10-11 02:31:53,823 INFO L262 CegarLoopResult]: For program point L561(lines 560 605) no Hoare annotation was computed. [2021-10-11 02:31:53,823 INFO L258 CegarLoopResult]: At program point L462(lines 455 465) the Hoare annotation is: false [2021-10-11 02:31:53,823 INFO L258 CegarLoopResult]: At program point L462-1(lines 455 465) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) (.cse3 (not (bvslt ~waterLevel~0 (_ bv2 32))))) (or (and .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneAlarm_#res| (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse1 .cse2 .cse3))) [2021-10-11 02:31:53,824 INFO L258 CegarLoopResult]: At program point L462-2(lines 455 465) the Hoare annotation is: false [2021-10-11 02:31:53,824 INFO L258 CegarLoopResult]: At program point L462-3(lines 455 465) the Hoare annotation is: false [2021-10-11 02:31:53,824 INFO L258 CegarLoopResult]: At program point L462-4(lines 455 465) the Hoare annotation is: false [2021-10-11 02:31:53,824 INFO L258 CegarLoopResult]: At program point L462-5(lines 455 465) the Hoare annotation is: false [2021-10-11 02:31:53,824 INFO L262 CegarLoopResult]: For program point L562(lines 562 566) no Hoare annotation was computed. [2021-10-11 02:31:53,824 INFO L258 CegarLoopResult]: At program point L67(lines 1 988) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~methAndRunningLastTime~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,824 INFO L262 CegarLoopResult]: For program point L596(lines 596 600) no Hoare annotation was computed. [2021-10-11 02:31:53,824 INFO L262 CegarLoopResult]: For program point L596-2(lines 342 348) no Hoare annotation was computed. [2021-10-11 02:31:53,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:53 BoogieIcfgContainer [2021-10-11 02:31:53,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:53,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:53,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:53,868 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:53,868 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:21" (3/4) ... [2021-10-11 02:31:53,871 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:31:53,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-11 02:31:53,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-11 02:31:53,895 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:31:53,896 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:31:53,897 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:31:53,898 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:53,900 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:53,924 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((splverifierCounter == 0bv32 && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2021-10-11 02:31:53,925 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2021-10-11 02:31:53,926 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && \result == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2021-10-11 02:31:53,927 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && !(waterLevel == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(waterLevel == 0bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2021-10-11 02:31:53,928 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2021-10-11 02:31:53,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == \result) && \result == 1bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 [2021-10-11 02:31:53,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && (!(~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || \result == 0bv32)) && tmp == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((((((splverifierCounter == 0bv32 && (!(~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || \result == 0bv32)) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) [2021-10-11 02:31:53,930 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2021-10-11 02:31:53,932 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && !~bvslt32(waterLevel, 2bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2021-10-11 02:31:53,933 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) [2021-10-11 02:31:53,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac1f16b8-641c-4a77-b098-dc7c22c4a6ce/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:53,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:53,991 INFO L168 Benchmark]: Toolchain (without parser) took 35436.46 ms. Allocated memory was 60.8 MB in the beginning and 188.7 MB in the end (delta: 127.9 MB). Free memory was 39.4 MB in the beginning and 59.7 MB in the end (delta: -20.3 MB). Peak memory consumption was 107.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,991 INFO L168 Benchmark]: CDTParser took 0.29 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. [2021-10-11 02:31:53,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.78 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 26.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.44 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 26.0 MB in the beginning and 63.2 MB in the end (delta: -37.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,992 INFO L168 Benchmark]: Boogie Preprocessor took 69.52 ms. Allocated memory is still 83.9 MB. Free memory was 63.2 MB in the beginning and 60.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,993 INFO L168 Benchmark]: RCFGBuilder took 2358.13 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 62.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,993 INFO L168 Benchmark]: TraceAbstraction took 31942.54 ms. Allocated memory was 83.9 MB in the beginning and 188.7 MB in the end (delta: 104.9 MB). Free memory was 61.4 MB in the beginning and 71.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,994 INFO L168 Benchmark]: Witness Printer took 122.52 ms. Allocated memory is still 188.7 MB. Free memory was 71.2 MB in the beginning and 59.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,996 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 60.8 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 814.78 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 26.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.44 ms. Allocated memory was 60.8 MB in the beginning and 83.9 MB in the end (delta: 23.1 MB). Free memory was 26.0 MB in the beginning and 63.2 MB in the end (delta: -37.3 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.52 ms. Allocated memory is still 83.9 MB. Free memory was 63.2 MB in the beginning and 60.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2358.13 ms. Allocated memory is still 83.9 MB. Free memory was 60.1 MB in the beginning and 62.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31942.54 ms. Allocated memory was 83.9 MB in the beginning and 188.7 MB in the end (delta: 104.9 MB). Free memory was 61.4 MB in the beginning and 71.2 MB in the end (delta: -9.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 16.1 GB. * Witness Printer took 122.52 ms. Allocated memory is still 188.7 MB. Free memory was 71.2 MB in the beginning and 59.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 985]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 985]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 985]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && !(waterLevel == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(waterLevel == 0bv32)) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: (((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && 0bv32 == pumpRunning) && \result == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 248]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == \result) && \result == 1bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && \result == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && !~bvslt32(waterLevel, 2bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32)) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && (!(~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || \result == 0bv32)) && tmp == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && ~bvadd64(\result, 4294967295bv32) == 0bv32) || ((((((splverifierCounter == 0bv32 && (!(~bvadd64(waterLevel, 4294967295bv32) == 0bv32) || \result == 0bv32)) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && 0bv32 == ~bvadd64(tmp___0, 4294967295bv32)) && ~bvadd64(\result, 4294967295bv32) == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((((splverifierCounter == 0bv32 && ~bvadd64(waterLevel, 4294967295bv32) == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || ((((((splverifierCounter == 0bv32 && 0bv32 == tmp) && \result == 0bv32) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 278]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 295]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) || ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 580]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32))) || ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) && !~bvslt32(waterLevel, 2bv32)) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !(waterLevel == 0bv32)) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(waterLevel == 0bv32)) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32)) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 268]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && methAndRunningLastTime == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 139 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.4s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 8.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1592 SDtfs, 2250 SDslu, 2640 SDs, 0 SdLazy, 364 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1293 GetRequests, 1217 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=291occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 2137 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 126 NumberOfFragments, 932 HoareAnnotationTreeSize, 55 FomulaSimplifications, 4219245 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 55 FomulaSimplificationsInter, 1506507 FormulaSimplificationTreeSizeReductionInter, 9.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 879 NumberOfCodeBlocks, 879 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1243 ConstructedInterpolants, 0 QuantifiedInterpolants, 216639 SizeOfPredicates, 39 NumberOfNonLiveVariables, 4249 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 23 InterpolantComputations, 14 PerfectInterpolantSequences, 479/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...