./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 8d89cb30057b8721685c80693144eb2455c18c87 ............................................................................................................................................ 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 8d89cb30057b8721685c80693144eb2455c18c87 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:39,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:39,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:39,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:39,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:39,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:39,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:39,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:39,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:39,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:39,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:39,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:39,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:39,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:39,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:39,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:39,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:39,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:39,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:39,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:39,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:39,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:39,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:39,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:39,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:39,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:39,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:39,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:39,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:39,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:39,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:39,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:39,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:39,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:39,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:39,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:39,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:39,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:39,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:39,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:39,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:39,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:39,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:39,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:39,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:39,459 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:39,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:39,459 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:39,460 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:39,460 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:39,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:39,460 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:39,461 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:39,461 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:39,462 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:39,462 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:39,462 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:39,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:39,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:39,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:39,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:39,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:39,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:39,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:39,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:39,464 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:39,464 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:39,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:39,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:39,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:39,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:39,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:39,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:39,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:39,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:39,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:39,466 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:39,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:39,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:39,467 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:39,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:39,467 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2021-10-11 02:26:39,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:39,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:39,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:39,752 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:39,753 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:39,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2021-10-11 02:26:39,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/7304fa662/90fad76a43dc4a6a8b937d2e63e4b5c5/FLAG303fa50f9 [2021-10-11 02:26:40,474 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:40,474 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2021-10-11 02:26:40,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/7304fa662/90fad76a43dc4a6a8b937d2e63e4b5c5/FLAG303fa50f9 [2021-10-11 02:26:40,724 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/7304fa662/90fad76a43dc4a6a8b937d2e63e4b5c5 [2021-10-11 02:26:40,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:40,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:40,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:40,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:40,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:40,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:40" (1/1) ... [2021-10-11 02:26:40,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749543db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:40, skipping insertion in model container [2021-10-11 02:26:40,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:40" (1/1) ... [2021-10-11 02:26:40,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:40,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:41,158 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16355,16368] [2021-10-11 02:26:41,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:41,188 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 02:26:41,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2fea88b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:41, skipping insertion in model container [2021-10-11 02:26:41,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:41,189 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:26:41,192 INFO L168 Benchmark]: Toolchain (without parser) took 462.62 ms. Allocated memory is still 96.5 MB. Free memory was 53.1 MB in the beginning and 67.6 MB in the end (delta: -14.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:41,193 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory was 70.8 MB in the beginning and 70.7 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:41,194 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.30 ms. Allocated memory is still 96.5 MB. Free memory was 52.9 MB in the beginning and 67.6 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:41,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory was 70.8 MB in the beginning and 70.7 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 452.30 ms. Allocated memory is still 96.5 MB. Free memory was 52.9 MB in the beginning and 67.6 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: 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 02:26:43,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:43,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:43,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:43,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:43,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:43,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:43,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:43,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:43,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:43,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:43,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:43,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:43,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:43,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:43,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:43,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:43,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:43,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:43,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:43,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:43,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:43,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:43,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:43,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:43,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:43,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:43,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:43,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:43,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:43,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:43,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:43,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:43,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:43,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:43,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:43,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:43,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:43,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:43,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:43,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:43,702 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:26:43,747 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:43,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:43,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:43,750 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:43,750 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:43,750 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:43,750 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:43,750 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:43,751 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:43,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:43,753 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:43,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:43,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:43,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:43,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:43,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:43,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:43,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:26:43,755 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:26:43,755 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:43,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:43,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:43,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:43,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:43,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:26:43,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:43,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:43,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:43,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:43,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:43,757 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:26:43,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:43,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:43,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:43,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:43,758 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d89cb30057b8721685c80693144eb2455c18c87 [2021-10-11 02:26:44,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:44,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:44,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:44,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:44,266 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:44,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2021-10-11 02:26:44,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/5b6c46c12/fcbf9328df894b519a896c0f2185494a/FLAG7c56fe4cf [2021-10-11 02:26:45,021 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:45,022 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c [2021-10-11 02:26:45,038 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/5b6c46c12/fcbf9328df894b519a896c0f2185494a/FLAG7c56fe4cf [2021-10-11 02:26:45,247 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/data/5b6c46c12/fcbf9328df894b519a896c0f2185494a [2021-10-11 02:26:45,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:45,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:45,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:45,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:45,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:45,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:45" (1/1) ... [2021-10-11 02:26:45,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c27016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:45, skipping insertion in model container [2021-10-11 02:26:45,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:45" (1/1) ... [2021-10-11 02:26:45,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:45,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:45,643 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16355,16368] [2021-10-11 02:26:45,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:45,756 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:26:45,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:45,883 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16355,16368] [2021-10-11 02:26:45,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:45,900 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:45,973 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_64e38dfd-5df8-411a-8c2b-83a5d88bb108/sv-benchmarks/c/product-lines/minepump_spec1_product56.cil.c[16355,16368] [2021-10-11 02:26:45,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:46,047 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:46,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46 WrapperNode [2021-10-11 02:26:46,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:46,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:46,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:46,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:46,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:46,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:46,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:46,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:46,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... [2021-10-11 02:26:46,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:46,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:46,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:46,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:46,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:26:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:46,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:49,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:49,676 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2021-10-11 02:26:49,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:49 BoogieIcfgContainer [2021-10-11 02:26:49,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:49,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:49,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:49,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:49,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:45" (1/3) ... [2021-10-11 02:26:49,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465843ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:49, skipping insertion in model container [2021-10-11 02:26:49,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:46" (2/3) ... [2021-10-11 02:26:49,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465843ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:49, skipping insertion in model container [2021-10-11 02:26:49,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:49" (3/3) ... [2021-10-11 02:26:49,699 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2021-10-11 02:26:49,716 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:49,720 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:26:49,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:26:49,779 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:49,779 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:49,779 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:49,780 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:49,780 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:49,780 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:49,780 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:49,780 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:49,807 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2021-10-11 02:26:49,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:26:49,822 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:49,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:49,823 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:49,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:49,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1937289636, now seen corresponding path program 1 times [2021-10-11 02:26:49,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:49,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [701329159] [2021-10-11 02:26:49,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:26:50,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:50,217 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 02:26:50,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:50,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [701329159] [2021-10-11 02:26:50,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:50,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:50,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140737061] [2021-10-11 02:26:50,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:26:50,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:50,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:26:50,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:50,248 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2021-10-11 02:26:50,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:50,343 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2021-10-11 02:26:50,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:26:50,345 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:26:50,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:50,366 INFO L225 Difference]: With dead ends: 376 [2021-10-11 02:26:50,367 INFO L226 Difference]: Without dead ends: 187 [2021-10-11 02:26:50,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:50,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-11 02:26:50,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-10-11 02:26:50,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2021-10-11 02:26:50,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2021-10-11 02:26:50,453 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2021-10-11 02:26:50,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:50,454 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2021-10-11 02:26:50,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:26:50,455 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2021-10-11 02:26:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:26:50,456 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:50,457 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:50,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:26:50,674 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:50,674 INFO L82 PathProgramCache]: Analyzing trace with hash 890532739, now seen corresponding path program 1 times [2021-10-11 02:26:50,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:50,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899059147] [2021-10-11 02:26:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:50,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:50,954 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 02:26:50,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:50,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899059147] [2021-10-11 02:26:50,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:50,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:50,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400750974] [2021-10-11 02:26:50,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:50,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:50,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:50,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:50,958 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 3 states. [2021-10-11 02:26:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:50,975 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2021-10-11 02:26:50,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:50,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:26:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:50,977 INFO L225 Difference]: With dead ends: 187 [2021-10-11 02:26:50,977 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 02:26:50,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 02:26:50,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-11 02:26:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-10-11 02:26:50,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2021-10-11 02:26:50,988 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2021-10-11 02:26:50,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:50,989 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2021-10-11 02:26:50,989 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2021-10-11 02:26:50,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:26:50,990 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:50,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:51,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:26:51,215 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1577730230, now seen corresponding path program 1 times [2021-10-11 02:26:51,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:51,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [877636001] [2021-10-11 02:26:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:51,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:51,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:51,506 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 02:26:51,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:51,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [877636001] [2021-10-11 02:26:51,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:51,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:51,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518701027] [2021-10-11 02:26:51,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:51,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:51,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:51,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:51,510 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 3 states. [2021-10-11 02:26:51,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:51,598 INFO L93 Difference]: Finished difference Result 207 states and 312 transitions. [2021-10-11 02:26:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:51,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:26:51,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:51,603 INFO L225 Difference]: With dead ends: 207 [2021-10-11 02:26:51,604 INFO L226 Difference]: Without dead ends: 140 [2021-10-11 02:26:51,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-11 02:26:51,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2021-10-11 02:26:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2021-10-11 02:26:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 205 transitions. [2021-10-11 02:26:51,647 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 205 transitions. Word has length 22 [2021-10-11 02:26:51,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:51,648 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 205 transitions. [2021-10-11 02:26:51,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 205 transitions. [2021-10-11 02:26:51,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:26:51,652 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:51,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:51,864 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:26:51,865 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:51,865 INFO L82 PathProgramCache]: Analyzing trace with hash 792163456, now seen corresponding path program 1 times [2021-10-11 02:26:51,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:51,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534084293] [2021-10-11 02:26:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:52,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:52,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:52,146 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 02:26:52,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:52,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534084293] [2021-10-11 02:26:52,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:52,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:52,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368253879] [2021-10-11 02:26:52,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:52,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:52,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:52,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:52,150 INFO L87 Difference]: Start difference. First operand 136 states and 205 transitions. Second operand 3 states. [2021-10-11 02:26:52,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:52,258 INFO L93 Difference]: Finished difference Result 283 states and 430 transitions. [2021-10-11 02:26:52,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:52,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:26:52,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:52,261 INFO L225 Difference]: With dead ends: 283 [2021-10-11 02:26:52,262 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 02:26:52,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 02:26:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 02:26:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2021-10-11 02:26:52,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2021-10-11 02:26:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 219 transitions. [2021-10-11 02:26:52,287 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 219 transitions. Word has length 25 [2021-10-11 02:26:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:52,289 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 219 transitions. [2021-10-11 02:26:52,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:52,289 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 219 transitions. [2021-10-11 02:26:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:26:52,294 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:52,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:52,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:26:52,508 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:52,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:52,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1022954699, now seen corresponding path program 1 times [2021-10-11 02:26:52,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:52,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879149325] [2021-10-11 02:26:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:52,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:52,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:52,786 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 02:26:52,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:52,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879149325] [2021-10-11 02:26:52,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:52,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:52,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529411080] [2021-10-11 02:26:52,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:52,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:52,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:52,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:52,790 INFO L87 Difference]: Start difference. First operand 151 states and 219 transitions. Second operand 5 states. [2021-10-11 02:26:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:52,970 INFO L93 Difference]: Finished difference Result 763 states and 1120 transitions. [2021-10-11 02:26:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:26:52,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:26:52,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:52,988 INFO L225 Difference]: With dead ends: 763 [2021-10-11 02:26:52,988 INFO L226 Difference]: Without dead ends: 618 [2021-10-11 02:26:52,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:52,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2021-10-11 02:26:53,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 286. [2021-10-11 02:26:53,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-10-11 02:26:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 411 transitions. [2021-10-11 02:26:53,019 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 411 transitions. Word has length 25 [2021-10-11 02:26:53,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:53,019 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 411 transitions. [2021-10-11 02:26:53,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:53,020 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 411 transitions. [2021-10-11 02:26:53,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:26:53,021 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:53,021 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 02:26:53,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:26:53,238 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:53,238 INFO L82 PathProgramCache]: Analyzing trace with hash 819147605, now seen corresponding path program 1 times [2021-10-11 02:26:53,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:53,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045482828] [2021-10-11 02:26:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:53,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:53,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:53,533 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 02:26:53,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:53,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045482828] [2021-10-11 02:26:53,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:53,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:53,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587331486] [2021-10-11 02:26:53,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:53,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:53,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:53,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:53,537 INFO L87 Difference]: Start difference. First operand 286 states and 411 transitions. Second operand 5 states. [2021-10-11 02:26:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:53,833 INFO L93 Difference]: Finished difference Result 832 states and 1198 transitions. [2021-10-11 02:26:53,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:26:53,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:26:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:53,840 INFO L225 Difference]: With dead ends: 832 [2021-10-11 02:26:53,840 INFO L226 Difference]: Without dead ends: 830 [2021-10-11 02:26:53,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 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 02:26:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-10-11 02:26:53,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 286. [2021-10-11 02:26:53,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-10-11 02:26:53,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 409 transitions. [2021-10-11 02:26:53,877 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 409 transitions. Word has length 26 [2021-10-11 02:26:53,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:53,878 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 409 transitions. [2021-10-11 02:26:53,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:53,878 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 409 transitions. [2021-10-11 02:26:53,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:26:53,879 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:53,879 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 02:26:54,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:26:54,100 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:54,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:54,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1010263109, now seen corresponding path program 1 times [2021-10-11 02:26:54,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:54,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313961479] [2021-10-11 02:26:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:54,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:54,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:54,388 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 02:26:54,388 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:54,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313961479] [2021-10-11 02:26:54,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:54,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:54,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913831633] [2021-10-11 02:26:54,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:54,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:54,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:54,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:54,391 INFO L87 Difference]: Start difference. First operand 286 states and 409 transitions. Second operand 5 states. [2021-10-11 02:26:54,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:54,552 INFO L93 Difference]: Finished difference Result 766 states and 1076 transitions. [2021-10-11 02:26:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:54,553 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 02:26:54,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:54,557 INFO L225 Difference]: With dead ends: 766 [2021-10-11 02:26:54,557 INFO L226 Difference]: Without dead ends: 486 [2021-10-11 02:26:54,558 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 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 02:26:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-10-11 02:26:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 322. [2021-10-11 02:26:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2021-10-11 02:26:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 445 transitions. [2021-10-11 02:26:54,594 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 445 transitions. Word has length 32 [2021-10-11 02:26:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:54,595 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 445 transitions. [2021-10-11 02:26:54,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:54,595 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 445 transitions. [2021-10-11 02:26:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:26:54,596 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:54,596 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 02:26:54,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:26:54,821 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:54,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:54,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1403290119, now seen corresponding path program 1 times [2021-10-11 02:26:54,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:54,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25430181] [2021-10-11 02:26:54,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:55,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:55,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:26:55,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:26:55,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:55,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25430181] [2021-10-11 02:26:55,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:55,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:55,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680512446] [2021-10-11 02:26:55,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:55,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:55,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:55,071 INFO L87 Difference]: Start difference. First operand 322 states and 445 transitions. Second operand 4 states. [2021-10-11 02:26:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:55,199 INFO L93 Difference]: Finished difference Result 782 states and 1066 transitions. [2021-10-11 02:26:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:55,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-10-11 02:26:55,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:55,204 INFO L225 Difference]: With dead ends: 782 [2021-10-11 02:26:55,206 INFO L226 Difference]: Without dead ends: 466 [2021-10-11 02:26:55,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 02:26:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-10-11 02:26:55,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 346. [2021-10-11 02:26:55,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2021-10-11 02:26:55,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 469 transitions. [2021-10-11 02:26:55,250 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 469 transitions. Word has length 32 [2021-10-11 02:26:55,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:55,251 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 469 transitions. [2021-10-11 02:26:55,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:55,255 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 469 transitions. [2021-10-11 02:26:55,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:26:55,256 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:55,256 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 02:26:55,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:26:55,478 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:55,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:55,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1145124681, now seen corresponding path program 1 times [2021-10-11 02:26:55,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:55,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475878274] [2021-10-11 02:26:55,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:55,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:55,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:55,751 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 02:26:55,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:55,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475878274] [2021-10-11 02:26:55,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:55,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:55,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796789327] [2021-10-11 02:26:55,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:55,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:55,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:55,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:55,754 INFO L87 Difference]: Start difference. First operand 346 states and 469 transitions. Second operand 3 states. [2021-10-11 02:26:55,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:55,844 INFO L93 Difference]: Finished difference Result 794 states and 1070 transitions. [2021-10-11 02:26:55,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:55,845 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 02:26:55,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:55,848 INFO L225 Difference]: With dead ends: 794 [2021-10-11 02:26:55,848 INFO L226 Difference]: Without dead ends: 454 [2021-10-11 02:26:55,850 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 02:26:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-11 02:26:55,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2021-10-11 02:26:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2021-10-11 02:26:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 599 transitions. [2021-10-11 02:26:55,904 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 599 transitions. Word has length 32 [2021-10-11 02:26:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:55,905 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 599 transitions. [2021-10-11 02:26:55,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:55,905 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 599 transitions. [2021-10-11 02:26:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:26:55,907 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:55,907 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 02:26:56,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:26:56,123 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:56,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2078796085, now seen corresponding path program 1 times [2021-10-11 02:26:56,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:56,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985484078] [2021-10-11 02:26:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/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 02:26:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:57,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:58,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:59,073 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:26:59,074 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:59,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:26:59,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:59 BoogieIcfgContainer [2021-10-11 02:26:59,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:59,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:59,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:59,456 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:59,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:49" (3/4) ... [2021-10-11 02:26:59,459 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:26:59,596 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64e38dfd-5df8-411a-8c2b-83a5d88bb108/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:59,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:59,598 INFO L168 Benchmark]: Toolchain (without parser) took 14344.40 ms. Allocated memory was 73.4 MB in the beginning and 144.7 MB in the end (delta: 71.3 MB). Free memory was 54.1 MB in the beginning and 94.8 MB in the end (delta: -40.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,598 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:59,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.84 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 40.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.35 ms. Allocated memory is still 73.4 MB. Free memory was 40.0 MB in the beginning and 35.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,599 INFO L168 Benchmark]: Boogie Preprocessor took 114.66 ms. Allocated memory is still 73.4 MB. Free memory was 35.4 MB in the beginning and 31.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,602 INFO L168 Benchmark]: RCFGBuilder took 3354.39 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 31.6 MB in the beginning and 50.7 MB in the end (delta: -19.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,602 INFO L168 Benchmark]: TraceAbstraction took 9768.62 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 50.5 MB in the beginning and 108.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,602 INFO L168 Benchmark]: Witness Printer took 140.25 ms. Allocated memory is still 144.7 MB. Free memory was 108.5 MB in the beginning and 94.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:59,605 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 54.8 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 792.84 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 40.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 161.35 ms. Allocated memory is still 73.4 MB. Free memory was 40.0 MB in the beginning and 35.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.66 ms. Allocated memory is still 73.4 MB. Free memory was 35.4 MB in the beginning and 31.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3354.39 ms. Allocated memory was 73.4 MB in the beginning and 98.6 MB in the end (delta: 25.2 MB). Free memory was 31.6 MB in the beginning and 50.7 MB in the end (delta: -19.1 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9768.62 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 50.5 MB in the beginning and 108.5 MB in the end (delta: -58.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 16.1 GB. * Witness Printer took 140.25 ms. Allocated memory is still 144.7 MB. Free memory was 108.5 MB in the beginning and 94.8 MB in the end (delta: 13.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 808]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L492] int pumpRunning = 0; [L493] int systemActive = 1; [L813] int cleanupTimeShifts = 4; [L910] int waterLevel = 1; [L911] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] int retValue_acc ; [L887] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int retValue_acc ; [L771] retValue_acc = 1 [L772] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L893] tmp = valid_product() [L895] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int splverifierCounter ; [L416] int tmp ; [L417] int tmp___0 ; [L418] int tmp___1 ; [L419] int tmp___2 ; [L422] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L426] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] tmp = __VERIFIER_nondet_int() [L434] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L928] COND TRUE waterLevel < 2 [L929] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] tmp___0 = __VERIFIER_nondet_int() [L444] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] COND FALSE !(\read(methaneLevelCritical)) [L943] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L452] tmp___2 = __VERIFIER_nondet_int() [L454] COND TRUE \read(tmp___2) [L734] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L500] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] COND TRUE \read(systemActive) [L581] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND FALSE !(\read(pumpRunning)) [L555] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] COND FALSE !(\read(pumpRunning)) [L529] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND TRUE ! pumpRunning [L678] int retValue_acc ; [L679] int tmp ; [L680] int tmp___0 ; [L990] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L993] COND FALSE !(waterLevel < 2) [L997] retValue_acc = 0 [L998] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L684] tmp = isHighWaterSensorDry() [L686] COND FALSE !(\read(tmp)) [L689] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] retValue_acc = tmp___0 [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L534] tmp = isHighWaterLevel() [L536] COND TRUE \read(tmp) [L609] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L779] int tmp ; [L780] int tmp___0 ; [L949] int retValue_acc ; [L952] retValue_acc = methaneLevelCritical [L953] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L784] tmp = isMethaneLevelCritical() [L786] COND TRUE \read(tmp) [L633] int retValue_acc ; [L636] retValue_acc = pumpRunning [L637] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L788] tmp___0 = isPumpRunning() [L790] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L808] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 191 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.5s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1186 SDtfs, 1203 SDslu, 1400 SDs, 0 SdLazy, 201 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=454occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1166 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 11066 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1819 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...