./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8 --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 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:11:07,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:11:07,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:11:07,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:11:07,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:11:07,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:11:07,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:11:07,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:11:07,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:11:07,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:11:07,486 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:11:07,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:11:07,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:11:07,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:11:07,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:11:07,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:11:07,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:11:07,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:11:07,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:11:07,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:11:07,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:11:07,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:11:07,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:11:07,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:11:07,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:11:07,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:11:07,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:11:07,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:11:07,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:11:07,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:11:07,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:11:07,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:11:07,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:11:07,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:11:07,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:11:07,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:11:07,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:11:07,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:11:07,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:11:07,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:11:07,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:11:07,555 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:11:07,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:11:07,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:11:07,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:11:07,625 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:11:07,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:11:07,625 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:11:07,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:11:07,626 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:11:07,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:11:07,627 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:11:07,628 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:11:07,629 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:11:07,629 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:11:07,630 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:11:07,630 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:11:07,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:11:07,632 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:11:07,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:11:07,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:11:07,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:11:07,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:11:07,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:11:07,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:11:07,634 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:11:07,635 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:11:07,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:11:07,635 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:11:07,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:11:07,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:11:07,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:11:07,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:07,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:11:07,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:11:07,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:11:07,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:11:07,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:11:07,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:11:07,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:11:07,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:11:07,641 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_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 [2021-11-07 01:11:08,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:11:08,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:11:08,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:11:08,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:11:08,088 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:11:08,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-11-07 01:11:08,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/fb8f064a6/319c42de86034f62ab1b7be1f0c08297/FLAGf72941200 [2021-11-07 01:11:08,857 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:11:08,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-11-07 01:11:08,879 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/fb8f064a6/319c42de86034f62ab1b7be1f0c08297/FLAGf72941200 [2021-11-07 01:11:09,152 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/fb8f064a6/319c42de86034f62ab1b7be1f0c08297 [2021-11-07 01:11:09,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:11:09,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:11:09,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:09,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:11:09,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:11:09,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:09" (1/1) ... [2021-11-07 01:11:09,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2633492b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:09, skipping insertion in model container [2021-11-07 01:11:09,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:09" (1/1) ... [2021-11-07 01:11:09,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:11:09,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:09,641 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[19040,19053] [2021-11-07 01:11:09,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:09,659 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) [2021-11-07 01:11:09,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@15d876c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:09, skipping insertion in model container [2021-11-07 01:11:09,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:09,660 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:11:09,667 INFO L168 Benchmark]: Toolchain (without parser) took 503.45 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 74.2 MB in the end (delta: -12.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:11:09,668 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:11:09,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.04 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 74.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:11:09,673 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 100.7 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 499.04 ms. Allocated memory is still 100.7 MB. Free memory was 62.0 MB in the beginning and 74.2 MB in the end (delta: -12.2 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 651]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8 --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 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:11:12,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:11:12,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:11:12,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:11:12,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:11:12,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:11:12,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:11:12,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:11:12,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:11:12,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:11:12,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:11:12,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:11:12,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:11:12,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:11:12,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:11:12,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:11:12,640 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:11:12,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:11:12,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:11:12,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:11:12,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:11:12,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:11:12,655 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:11:12,657 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:11:12,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:11:12,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:11:12,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:11:12,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:11:12,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:11:12,668 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:11:12,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:11:12,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:11:12,671 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:11:12,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:11:12,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:11:12,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:11:12,677 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:11:12,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:11:12,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:11:12,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:11:12,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:11:12,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:11:12,725 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:11:12,725 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:11:12,726 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:11:12,727 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:11:12,727 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:11:12,728 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:11:12,728 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:11:12,728 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:11:12,729 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:11:12,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:11:12,730 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:11:12,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:11:12,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:11:12,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:11:12,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:11:12,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:11:12,732 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:11:12,733 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:11:12,733 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:11:12,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:11:12,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:11:12,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:11:12,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:11:12,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:11:12,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:11:12,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:11:12,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:12,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:11:12,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:11:12,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:11:12,737 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:11:12,738 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:11:12,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:11:12,738 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:11:12,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:11:12,739 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_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 909de5fe3a7d5a638d67615e2b4d48b563eefeab07033d1b2a29843c731be596 [2021-11-07 01:11:13,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:11:13,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:11:13,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:11:13,230 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:11:13,231 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:11:13,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-11-07 01:11:13,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/cd0933d77/fe3fc0ce3a1f46f9a98d218ca1a0b9bc/FLAG23149f9d9 [2021-11-07 01:11:14,218 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:11:14,226 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c [2021-11-07 01:11:14,248 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/cd0933d77/fe3fc0ce3a1f46f9a98d218ca1a0b9bc/FLAG23149f9d9 [2021-11-07 01:11:14,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/data/cd0933d77/fe3fc0ce3a1f46f9a98d218ca1a0b9bc [2021-11-07 01:11:14,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:11:14,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:11:14,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:14,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:11:14,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:11:14,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:14" (1/1) ... [2021-11-07 01:11:14,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bca326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:14, skipping insertion in model container [2021-11-07 01:11:14,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:14" (1/1) ... [2021-11-07 01:11:14,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:11:14,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:14,984 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[19040,19053] [2021-11-07 01:11:14,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:15,016 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:11:15,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:11:15,133 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[19040,19053] [2021-11-07 01:11:15,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:15,147 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:11:15,277 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/sv-benchmarks/c/product-lines/minepump_spec2_product57.cil.c[19040,19053] [2021-11-07 01:11:15,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:11:15,324 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:11:15,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15 WrapperNode [2021-11-07 01:11:15,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:11:15,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:11:15,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:11:15,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:11:15,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:11:15,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:11:15,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:11:15,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:11:15,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:11:15,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:11:15,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:11:15,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:11:15,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (1/1) ... [2021-11-07 01:11:15,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:11:15,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:11:15,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:11:15,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:11:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:11:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:11:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:11:15,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:11:18,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:11:18,806 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-11-07 01:11:18,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:11:18 BoogieIcfgContainer [2021-11-07 01:11:18,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:11:18,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:11:18,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:11:18,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:11:18,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:11:14" (1/3) ... [2021-11-07 01:11:18,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de697ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:11:18, skipping insertion in model container [2021-11-07 01:11:18,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:15" (2/3) ... [2021-11-07 01:11:18,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de697ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:11:18, skipping insertion in model container [2021-11-07 01:11:18,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:11:18" (3/3) ... [2021-11-07 01:11:18,823 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2021-11-07 01:11:18,830 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:11:18,830 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:11:18,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:11:18,927 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:11:18,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:11:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 135 states have (on average 1.5407407407407407) internal successors, (208), 138 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:18,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 01:11:18,964 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:18,965 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:18,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:18,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash -859371484, now seen corresponding path program 1 times [2021-11-07 01:11:19,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:19,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674834130] [2021-11-07 01:11:19,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:19,013 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:19,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:19,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:19,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:11:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:19,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:11:19,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:19,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:19,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:19,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674834130] [2021-11-07 01:11:19,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674834130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:19,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:19,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:11:19,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841286203] [2021-11-07 01:11:19,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:11:19,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:19,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:11:19,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:11:19,539 INFO L87 Difference]: Start difference. First operand has 139 states, 135 states have (on average 1.5407407407407407) internal successors, (208), 138 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:19,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:19,620 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2021-11-07 01:11:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:11:19,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 01:11:19,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:19,653 INFO L225 Difference]: With dead ends: 271 [2021-11-07 01:11:19,653 INFO L226 Difference]: Without dead ends: 135 [2021-11-07 01:11:19,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:11:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-07 01:11:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-11-07 01:11:19,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 132 states have (on average 1.4848484848484849) internal successors, (196), 134 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:19,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 196 transitions. [2021-11-07 01:11:19,757 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 196 transitions. Word has length 18 [2021-11-07 01:11:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:19,758 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 196 transitions. [2021-11-07 01:11:19,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 196 transitions. [2021-11-07 01:11:19,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:11:19,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:19,760 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:19,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-07 01:11:19,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:19,991 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1078207453, now seen corresponding path program 1 times [2021-11-07 01:11:19,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:19,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210341389] [2021-11-07 01:11:19,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:19,994 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:19,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:19,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:20,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:11:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:20,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:11:20,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:20,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:20,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:20,505 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:20,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210341389] [2021-11-07 01:11:20,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210341389] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:20,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:20,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:11:20,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094410985] [2021-11-07 01:11:20,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:11:20,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:20,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:11:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:20,525 INFO L87 Difference]: Start difference. First operand 135 states and 196 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:20,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:20,585 INFO L93 Difference]: Finished difference Result 135 states and 196 transitions. [2021-11-07 01:11:20,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:11:20,586 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 01:11:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:20,588 INFO L225 Difference]: With dead ends: 135 [2021-11-07 01:11:20,590 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 01:11:20,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:20,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 01:11:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-07 01:11:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-11-07 01:11:20,615 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2021-11-07 01:11:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:20,616 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-11-07 01:11:20,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-11-07 01:11:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:11:20,620 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:20,621 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:20,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:20,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:20,843 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:20,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1475398090, now seen corresponding path program 1 times [2021-11-07 01:11:20,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:20,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548875143] [2021-11-07 01:11:20,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:20,846 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:20,849 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:20,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:11:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:21,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:11:21,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:21,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:21,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:21,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:21,437 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:21,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [548875143] [2021-11-07 01:11:21,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [548875143] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:21,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:21,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:11:21,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460900697] [2021-11-07 01:11:21,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:11:21,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:21,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:11:21,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:21,449 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:21,478 INFO L93 Difference]: Finished difference Result 103 states and 151 transitions. [2021-11-07 01:11:21,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:11:21,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 01:11:21,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:21,483 INFO L225 Difference]: With dead ends: 103 [2021-11-07 01:11:21,483 INFO L226 Difference]: Without dead ends: 55 [2021-11-07 01:11:21,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:21,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-07 01:11:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-07 01:11:21,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:21,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2021-11-07 01:11:21,512 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 24 [2021-11-07 01:11:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2021-11-07 01:11:21,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:21,514 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2021-11-07 01:11:21,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 01:11:21,517 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:21,517 INFO L513 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] [2021-11-07 01:11:21,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:21,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:21,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:21,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash 597219871, now seen corresponding path program 1 times [2021-11-07 01:11:21,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:21,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556123963] [2021-11-07 01:11:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:21,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:21,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:21,736 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:21,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:11:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:21,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:11:22,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:22,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:22,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:22,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556123963] [2021-11-07 01:11:22,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556123963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:22,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:22,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:11:22,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287258822] [2021-11-07 01:11:22,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:11:22,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:22,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:11:22,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:11:22,161 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:22,240 INFO L93 Difference]: Finished difference Result 125 states and 181 transitions. [2021-11-07 01:11:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:11:22,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-07 01:11:22,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:22,248 INFO L225 Difference]: With dead ends: 125 [2021-11-07 01:11:22,251 INFO L226 Difference]: Without dead ends: 77 [2021-11-07 01:11:22,252 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:11:22,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-11-07 01:11:22,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2021-11-07 01:11:22,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 74 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:22,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 106 transitions. [2021-11-07 01:11:22,261 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 106 transitions. Word has length 26 [2021-11-07 01:11:22,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:22,261 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 106 transitions. [2021-11-07 01:11:22,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:22,262 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 106 transitions. [2021-11-07 01:11:22,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:11:22,263 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:22,263 INFO L513 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] [2021-11-07 01:11:22,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:22,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:22,484 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash -105705555, now seen corresponding path program 1 times [2021-11-07 01:11:22,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:22,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434094104] [2021-11-07 01:11:22,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:22,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:22,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:22,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:22,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:11:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:22,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:11:22,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:22,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:22,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:22,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:22,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434094104] [2021-11-07 01:11:22,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434094104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:22,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:22,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:11:22,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676355573] [2021-11-07 01:11:22,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:11:22,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:22,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:11:22,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:22,968 INFO L87 Difference]: Start difference. First operand 75 states and 106 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:23,047 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2021-11-07 01:11:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:11:23,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 01:11:23,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:23,052 INFO L225 Difference]: With dead ends: 262 [2021-11-07 01:11:23,052 INFO L226 Difference]: Without dead ends: 194 [2021-11-07 01:11:23,052 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:11:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-11-07 01:11:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 188. [2021-11-07 01:11:23,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.427807486631016) internal successors, (267), 187 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 267 transitions. [2021-11-07 01:11:23,097 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 267 transitions. Word has length 32 [2021-11-07 01:11:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:23,099 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 267 transitions. [2021-11-07 01:11:23,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 267 transitions. [2021-11-07 01:11:23,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:11:23,107 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:23,108 INFO L513 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] [2021-11-07 01:11:23,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:23,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:23,322 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:23,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:23,322 INFO L85 PathProgramCache]: Analyzing trace with hash 481100459, now seen corresponding path program 1 times [2021-11-07 01:11:23,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:23,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [275214853] [2021-11-07 01:11:23,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:23,324 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:23,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:23,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:23,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:11:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:23,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:11:23,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:23,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:23,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:23,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [275214853] [2021-11-07 01:11:23,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [275214853] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:23,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:23,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:11:23,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389549435] [2021-11-07 01:11:23,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:11:23,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:11:23,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:11:23,894 INFO L87 Difference]: Start difference. First operand 188 states and 267 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:24,110 INFO L93 Difference]: Finished difference Result 972 states and 1381 transitions. [2021-11-07 01:11:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:11:24,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-07 01:11:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:24,117 INFO L225 Difference]: With dead ends: 972 [2021-11-07 01:11:24,117 INFO L226 Difference]: Without dead ends: 791 [2021-11-07 01:11:24,120 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:11:24,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-11-07 01:11:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 349. [2021-11-07 01:11:24,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.3908045977011494) internal successors, (484), 348 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 484 transitions. [2021-11-07 01:11:24,183 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 484 transitions. Word has length 32 [2021-11-07 01:11:24,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:24,184 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 484 transitions. [2021-11-07 01:11:24,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:24,184 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 484 transitions. [2021-11-07 01:11:24,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 01:11:24,186 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:24,187 INFO L513 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] [2021-11-07 01:11:24,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:24,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:24,400 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:24,400 INFO L85 PathProgramCache]: Analyzing trace with hash 480943923, now seen corresponding path program 1 times [2021-11-07 01:11:24,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:24,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516071457] [2021-11-07 01:11:24,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:24,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:24,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:24,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:11:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:24,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:11:24,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:24,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:24,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:24,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516071457] [2021-11-07 01:11:24,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516071457] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:24,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:24,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:11:24,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298664715] [2021-11-07 01:11:24,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:11:24,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:24,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:11:24,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:11:24,882 INFO L87 Difference]: Start difference. First operand 349 states and 484 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:25,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:25,135 INFO L93 Difference]: Finished difference Result 1346 states and 1861 transitions. [2021-11-07 01:11:25,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:11:25,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 01:11:25,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:25,143 INFO L225 Difference]: With dead ends: 1346 [2021-11-07 01:11:25,143 INFO L226 Difference]: Without dead ends: 1004 [2021-11-07 01:11:25,144 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:11:25,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2021-11-07 01:11:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 346. [2021-11-07 01:11:25,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.3768115942028984) internal successors, (475), 345 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 475 transitions. [2021-11-07 01:11:25,201 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 475 transitions. Word has length 33 [2021-11-07 01:11:25,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:25,201 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 475 transitions. [2021-11-07 01:11:25,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:25,202 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 475 transitions. [2021-11-07 01:11:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:11:25,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:25,203 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:25,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:25,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:25,420 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1552355764, now seen corresponding path program 1 times [2021-11-07 01:11:25,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:25,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021762070] [2021-11-07 01:11:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:25,422 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:25,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:25,423 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:25,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:11:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:25,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:11:25,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:25,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:25,893 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:25,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021762070] [2021-11-07 01:11:25,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021762070] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:25,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:25,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:11:25,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470811016] [2021-11-07 01:11:25,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:11:25,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:25,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:11:25,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:11:25,895 INFO L87 Difference]: Start difference. First operand 346 states and 475 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:26,025 INFO L93 Difference]: Finished difference Result 933 states and 1265 transitions. [2021-11-07 01:11:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:11:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 01:11:26,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:26,030 INFO L225 Difference]: With dead ends: 933 [2021-11-07 01:11:26,031 INFO L226 Difference]: Without dead ends: 594 [2021-11-07 01:11:26,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:11:26,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-11-07 01:11:26,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 376. [2021-11-07 01:11:26,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.3466666666666667) internal successors, (505), 375 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:26,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 505 transitions. [2021-11-07 01:11:26,080 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 505 transitions. Word has length 36 [2021-11-07 01:11:26,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:26,080 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 505 transitions. [2021-11-07 01:11:26,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:26,081 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 505 transitions. [2021-11-07 01:11:26,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 01:11:26,082 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:26,082 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:26,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:26,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:26,296 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:26,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:26,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1731494282, now seen corresponding path program 1 times [2021-11-07 01:11:26,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:26,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373970183] [2021-11-07 01:11:26,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:26,298 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:26,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:26,299 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:26,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:11:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:26,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:11:26,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:26,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:26,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:26,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373970183] [2021-11-07 01:11:26,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373970183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:26,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:26,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:11:26,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992222989] [2021-11-07 01:11:26,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:11:26,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:11:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:11:26,796 INFO L87 Difference]: Start difference. First operand 376 states and 505 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:26,913 INFO L93 Difference]: Finished difference Result 793 states and 1060 transitions. [2021-11-07 01:11:26,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:11:26,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-07 01:11:26,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:26,917 INFO L225 Difference]: With dead ends: 793 [2021-11-07 01:11:26,917 INFO L226 Difference]: Without dead ends: 424 [2021-11-07 01:11:26,918 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:11:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-11-07 01:11:26,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 259. [2021-11-07 01:11:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 258 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 346 transitions. [2021-11-07 01:11:26,955 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 346 transitions. Word has length 36 [2021-11-07 01:11:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:26,955 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 346 transitions. [2021-11-07 01:11:26,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 346 transitions. [2021-11-07 01:11:26,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:11:26,957 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:26,957 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:26,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:27,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:27,172 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:27,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:27,172 INFO L85 PathProgramCache]: Analyzing trace with hash -764052856, now seen corresponding path program 1 times [2021-11-07 01:11:27,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:27,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039252735] [2021-11-07 01:11:27,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:27,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:27,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:27,174 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:27,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:11:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:27,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:11:27,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:27,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:27,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:27,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039252735] [2021-11-07 01:11:27,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039252735] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:27,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:27,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-07 01:11:27,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464028151] [2021-11-07 01:11:27,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-07 01:11:27,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:27,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 01:11:27,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:11:27,763 INFO L87 Difference]: Start difference. First operand 259 states and 346 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:29,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:29,766 INFO L93 Difference]: Finished difference Result 995 states and 1305 transitions. [2021-11-07 01:11:29,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 01:11:29,767 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-07 01:11:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:29,773 INFO L225 Difference]: With dead ends: 995 [2021-11-07 01:11:29,774 INFO L226 Difference]: Without dead ends: 743 [2021-11-07 01:11:29,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-11-07 01:11:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-11-07 01:11:29,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 259. [2021-11-07 01:11:29,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.317829457364341) internal successors, (340), 258 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:29,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 340 transitions. [2021-11-07 01:11:29,818 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 340 transitions. Word has length 37 [2021-11-07 01:11:29,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:29,819 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 340 transitions. [2021-11-07 01:11:29,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:29,820 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 340 transitions. [2021-11-07 01:11:29,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:11:29,821 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:29,821 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:29,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:30,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:30,034 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:30,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1177012586, now seen corresponding path program 1 times [2021-11-07 01:11:30,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:30,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410182733] [2021-11-07 01:11:30,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:30,035 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:30,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:30,036 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:30,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:11:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:30,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:11:30,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:30,562 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:11:30,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:30,723 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:11:30,724 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:30,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410182733] [2021-11-07 01:11:30,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410182733] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:30,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:11:30,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:11:30,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486113121] [2021-11-07 01:11:30,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:11:30,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:30,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:11:30,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:11:30,726 INFO L87 Difference]: Start difference. First operand 259 states and 340 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:30,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:30,881 INFO L93 Difference]: Finished difference Result 800 states and 1048 transitions. [2021-11-07 01:11:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:11:30,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:11:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:30,887 INFO L225 Difference]: With dead ends: 800 [2021-11-07 01:11:30,888 INFO L226 Difference]: Without dead ends: 548 [2021-11-07 01:11:30,888 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:11:30,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-11-07 01:11:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 271. [2021-11-07 01:11:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.3037037037037038) internal successors, (352), 270 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:30,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 352 transitions. [2021-11-07 01:11:30,931 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 352 transitions. Word has length 58 [2021-11-07 01:11:30,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:30,933 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 352 transitions. [2021-11-07 01:11:30,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:30,933 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 352 transitions. [2021-11-07 01:11:30,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:11:30,934 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:30,935 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:30,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:31,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:31,149 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:31,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:31,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1435178024, now seen corresponding path program 1 times [2021-11-07 01:11:31,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:31,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411596735] [2021-11-07 01:11:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:31,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:31,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:31,151 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:31,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:11:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:31,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:11:31,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:11:31,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:11:32,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:32,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411596735] [2021-11-07 01:11:32,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411596735] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:11:32,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [804546579] [2021-11-07 01:11:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:32,059 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:11:32,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:11:32,066 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:11:32,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 01:11:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:32,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:11:32,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:32,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:32,989 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:11:32,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [804546579] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:32,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:11:32,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-07 01:11:32,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136681463] [2021-11-07 01:11:32,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:11:32,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:32,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:11:32,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:11:32,991 INFO L87 Difference]: Start difference. First operand 271 states and 352 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:33,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:33,103 INFO L93 Difference]: Finished difference Result 471 states and 610 transitions. [2021-11-07 01:11:33,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:11:33,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-07 01:11:33,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:33,110 INFO L225 Difference]: With dead ends: 471 [2021-11-07 01:11:33,110 INFO L226 Difference]: Without dead ends: 469 [2021-11-07 01:11:33,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:11:33,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-11-07 01:11:33,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 323. [2021-11-07 01:11:33,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.3322981366459627) internal successors, (429), 322 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 429 transitions. [2021-11-07 01:11:33,162 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 429 transitions. Word has length 58 [2021-11-07 01:11:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:33,162 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 429 transitions. [2021-11-07 01:11:33,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 429 transitions. [2021-11-07 01:11:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 01:11:33,164 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:33,165 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:33,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:33,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:33,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:11:33,582 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:33,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:33,583 INFO L85 PathProgramCache]: Analyzing trace with hash 200937625, now seen corresponding path program 1 times [2021-11-07 01:11:33,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:33,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465859730] [2021-11-07 01:11:33,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:33,584 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:33,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:33,586 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:33,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-07 01:11:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:34,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:11:34,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:11:34,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:34,691 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:11:34,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:34,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465859730] [2021-11-07 01:11:34,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465859730] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:11:34,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1049619182] [2021-11-07 01:11:34,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:34,692 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:11:34,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:11:34,695 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:11:34,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-11-07 01:11:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:35,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:11:35,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:11:35,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:11:35,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1049619182] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:11:35,890 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68179347] [2021-11-07 01:11:35,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:35,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:11:35,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:11:35,894 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:11:35,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 01:11:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:36,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:11:36,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:36,871 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:11:36,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:37,174 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 01:11:37,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68179347] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-07 01:11:37,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-11-07 01:11:37,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 14 [2021-11-07 01:11:37,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204288743] [2021-11-07 01:11:37,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:11:37,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:37,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:11:37,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:11:37,177 INFO L87 Difference]: Start difference. First operand 323 states and 429 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:40,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:40,617 INFO L93 Difference]: Finished difference Result 1801 states and 2342 transitions. [2021-11-07 01:11:40,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-07 01:11:40,618 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-07 01:11:40,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:40,628 INFO L225 Difference]: With dead ends: 1801 [2021-11-07 01:11:40,628 INFO L226 Difference]: Without dead ends: 1485 [2021-11-07 01:11:40,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 483 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2021-11-07 01:11:40,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2021-11-07 01:11:40,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 386. [2021-11-07 01:11:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.3584415584415583) internal successors, (523), 385 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:40,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 523 transitions. [2021-11-07 01:11:40,710 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 523 transitions. Word has length 82 [2021-11-07 01:11:40,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:40,710 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 523 transitions. [2021-11-07 01:11:40,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:40,711 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 523 transitions. [2021-11-07 01:11:40,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-07 01:11:40,712 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:11:40,713 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:11:40,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:40,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:41,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:41,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:41,319 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:11:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:11:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash 252580901, now seen corresponding path program 1 times [2021-11-07 01:11:41,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:11:41,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666123948] [2021-11-07 01:11:41,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:41,320 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:11:41,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:11:41,321 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:11:41,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-07 01:11:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:41,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:11:41,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 01:11:42,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 01:11:42,422 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:11:42,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666123948] [2021-11-07 01:11:42,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666123948] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:11:42,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [120059374] [2021-11-07 01:11:42,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:11:42,423 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:11:42,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:11:42,424 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:11:42,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-07 01:11:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:11:43,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:11:43,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:11:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 01:11:43,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:11:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 01:11:43,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [120059374] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:11:43,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:11:43,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 6 [2021-11-07 01:11:43,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461012081] [2021-11-07 01:11:43,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:11:43,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:11:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:11:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:11:43,574 INFO L87 Difference]: Start difference. First operand 386 states and 523 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:45,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:11:45,161 INFO L93 Difference]: Finished difference Result 573 states and 763 transitions. [2021-11-07 01:11:45,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:11:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-07 01:11:45,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:11:45,162 INFO L225 Difference]: With dead ends: 573 [2021-11-07 01:11:45,163 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:11:45,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:11:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:11:45,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:11:45,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:45,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:11:45,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2021-11-07 01:11:45,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:11:45,165 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:11:45,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:11:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:11:45,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:11:45,168 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:11:45,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:11:45,169 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:11:45,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:45,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-07 01:11:45,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:11:45,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:11:45,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:46,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:47,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:49,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:50,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:51,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:51,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:51,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:51,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:51,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:52,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:52,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:11:52,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:12:08,939 INFO L857 garLoopResultBuilder]: For program point L993(line 993) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point L993-1(line 993) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point L993-2(line 993) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point L102-6(lines 102 106) no Hoare annotation was computed. [2021-11-07 01:12:08,940 INFO L857 garLoopResultBuilder]: For program point L598(lines 598 609) no Hoare annotation was computed. [2021-11-07 01:12:08,941 INFO L853 garLoopResultBuilder]: At program point L534(lines 519 537) the Hoare annotation is: false [2021-11-07 01:12:08,941 INFO L853 garLoopResultBuilder]: At program point L534-1(lines 519 537) the Hoare annotation is: (let ((.cse8 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse6 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse9 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse7 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse9 .cse3 .cse7) (and .cse0 .cse8 .cse3 .cse6 .cse7) (and .cse0 .cse1 .cse9 .cse2 .cse3 .cse4 .cse5 .cse7))) [2021-11-07 01:12:08,941 INFO L853 garLoopResultBuilder]: At program point L534-2(lines 519 537) the Hoare annotation is: false [2021-11-07 01:12:08,941 INFO L853 garLoopResultBuilder]: At program point L534-3(lines 519 537) the Hoare annotation is: false [2021-11-07 01:12:08,941 INFO L853 garLoopResultBuilder]: At program point L534-4(lines 519 537) the Hoare annotation is: false [2021-11-07 01:12:08,942 INFO L853 garLoopResultBuilder]: At program point L534-5(lines 519 537) the Hoare annotation is: false [2021-11-07 01:12:08,942 INFO L853 garLoopResultBuilder]: At program point L139(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,942 INFO L853 garLoopResultBuilder]: At program point L139-1(lines 134 142) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse3))) [2021-11-07 01:12:08,942 INFO L853 garLoopResultBuilder]: At program point L139-2(lines 134 142) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse4))) [2021-11-07 01:12:08,942 INFO L853 garLoopResultBuilder]: At program point L139-3(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,943 INFO L853 garLoopResultBuilder]: At program point L139-4(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,943 INFO L853 garLoopResultBuilder]: At program point L139-5(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,943 INFO L853 garLoopResultBuilder]: At program point L139-6(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,943 INFO L853 garLoopResultBuilder]: At program point L139-7(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,943 INFO L853 garLoopResultBuilder]: At program point L139-8(lines 134 142) the Hoare annotation is: false [2021-11-07 01:12:08,944 INFO L857 garLoopResultBuilder]: For program point L569(lines 568 613) no Hoare annotation was computed. [2021-11-07 01:12:08,944 INFO L853 garLoopResultBuilder]: At program point L470(lines 463 473) the Hoare annotation is: false [2021-11-07 01:12:08,944 INFO L853 garLoopResultBuilder]: At program point L470-1(lines 463 473) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv1 32)) .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3))) [2021-11-07 01:12:08,945 INFO L853 garLoopResultBuilder]: At program point L470-2(lines 463 473) the Hoare annotation is: false [2021-11-07 01:12:08,946 INFO L853 garLoopResultBuilder]: At program point L470-3(lines 463 473) the Hoare annotation is: false [2021-11-07 01:12:08,946 INFO L853 garLoopResultBuilder]: At program point L470-4(lines 463 473) the Hoare annotation is: false [2021-11-07 01:12:08,946 INFO L853 garLoopResultBuilder]: At program point L470-5(lines 463 473) the Hoare annotation is: false [2021-11-07 01:12:08,946 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 574) no Hoare annotation was computed. [2021-11-07 01:12:08,946 INFO L853 garLoopResultBuilder]: At program point L75(lines 1 996) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:12:08,946 INFO L857 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L604-2(lines 350 356) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L853 garLoopResultBuilder]: At program point L308(lines 303 310) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 425) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L408-1(lines 408 425) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L408-2(lines 408 425) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L853 garLoopResultBuilder]: At program point L211-2(lines 211 225) the Hoare annotation is: false [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 185) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L179-1(lines 179 185) no Hoare annotation was computed. [2021-11-07 01:12:08,947 INFO L857 garLoopResultBuilder]: For program point L179-2(lines 179 185) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L179-3(lines 179 185) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L179-4(lines 179 185) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L179-5(lines 179 185) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 420) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L445-2(lines 445 451) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L412-1(lines 412 420) no Hoare annotation was computed. [2021-11-07 01:12:08,948 INFO L857 garLoopResultBuilder]: For program point L412-2(lines 412 420) no Hoare annotation was computed. [2021-11-07 01:12:08,949 INFO L857 garLoopResultBuilder]: For program point L445-4(lines 445 451) no Hoare annotation was computed. [2021-11-07 01:12:08,949 INFO L857 garLoopResultBuilder]: For program point L445-6(lines 445 451) no Hoare annotation was computed. [2021-11-07 01:12:08,949 INFO L857 garLoopResultBuilder]: For program point L445-8(lines 445 451) no Hoare annotation was computed. [2021-11-07 01:12:08,949 INFO L857 garLoopResultBuilder]: For program point L445-10(lines 445 451) no Hoare annotation was computed. [2021-11-07 01:12:08,949 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2021-11-07 01:12:08,949 INFO L853 garLoopResultBuilder]: At program point L578-1(lines 578 584) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse4 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2))) [2021-11-07 01:12:08,949 INFO L853 garLoopResultBuilder]: At program point L479(lines 474 482) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= ~systemActive~0 (_ bv1 32)) (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:12:08,950 INFO L853 garLoopResultBuilder]: At program point L479-1(lines 474 482) the Hoare annotation is: false [2021-11-07 01:12:08,950 INFO L853 garLoopResultBuilder]: At program point L479-2(lines 474 482) the Hoare annotation is: false [2021-11-07 01:12:08,950 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2021-11-07 01:12:08,950 INFO L857 garLoopResultBuilder]: For program point L215-1(lines 350 356) no Hoare annotation was computed. [2021-11-07 01:12:08,950 INFO L853 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:12:08,950 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 551) no Hoare annotation was computed. [2021-11-07 01:12:08,951 INFO L857 garLoopResultBuilder]: For program point L547-2(lines 547 551) no Hoare annotation was computed. [2021-11-07 01:12:08,951 INFO L857 garLoopResultBuilder]: For program point L547-3(lines 547 551) no Hoare annotation was computed. [2021-11-07 01:12:08,951 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 399) no Hoare annotation was computed. [2021-11-07 01:12:08,951 INFO L857 garLoopResultBuilder]: For program point L547-5(lines 547 551) no Hoare annotation was computed. [2021-11-07 01:12:08,951 INFO L857 garLoopResultBuilder]: For program point L382-1(lines 382 399) no Hoare annotation was computed. [2021-11-07 01:12:08,951 INFO L857 garLoopResultBuilder]: For program point L547-6(lines 547 551) no Hoare annotation was computed. [2021-11-07 01:12:08,952 INFO L857 garLoopResultBuilder]: For program point L382-2(lines 382 399) no Hoare annotation was computed. [2021-11-07 01:12:08,952 INFO L857 garLoopResultBuilder]: For program point L382-3(lines 382 399) no Hoare annotation was computed. [2021-11-07 01:12:08,952 INFO L857 garLoopResultBuilder]: For program point L547-8(lines 547 551) no Hoare annotation was computed. [2021-11-07 01:12:08,952 INFO L857 garLoopResultBuilder]: For program point L382-4(lines 382 399) no Hoare annotation was computed. [2021-11-07 01:12:08,952 INFO L857 garLoopResultBuilder]: For program point L382-5(lines 382 399) no Hoare annotation was computed. [2021-11-07 01:12:08,953 INFO L853 garLoopResultBuilder]: At program point L184(lines 175 188) the Hoare annotation is: false [2021-11-07 01:12:08,953 INFO L853 garLoopResultBuilder]: At program point L184-1(lines 175 188) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse2 .cse4) (and .cse0 .cse6 .cse5 .cse2 .cse4) (and .cse0 .cse6 .cse2 .cse3 .cse4))) [2021-11-07 01:12:08,953 INFO L853 garLoopResultBuilder]: At program point L184-2(lines 175 188) the Hoare annotation is: false [2021-11-07 01:12:08,953 INFO L853 garLoopResultBuilder]: At program point L184-3(lines 175 188) the Hoare annotation is: false [2021-11-07 01:12:08,953 INFO L853 garLoopResultBuilder]: At program point L184-4(lines 175 188) the Hoare annotation is: false [2021-11-07 01:12:08,954 INFO L853 garLoopResultBuilder]: At program point L184-5(lines 175 188) the Hoare annotation is: false [2021-11-07 01:12:08,954 INFO L853 garLoopResultBuilder]: At program point L614(lines 567 615) the Hoare annotation is: false [2021-11-07 01:12:08,954 INFO L853 garLoopResultBuilder]: At program point L350(lines 349 368) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse4 (= ~methaneLevelCritical~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse4 .cse3) (and .cse0 .cse1 .cse2 .cse5) (and .cse0 .cse2 .cse5 .cse4))) [2021-11-07 01:12:08,954 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:12:08,954 INFO L857 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2021-11-07 01:12:08,955 INFO L853 garLoopResultBuilder]: At program point L350-2(lines 349 368) the Hoare annotation is: false [2021-11-07 01:12:08,955 INFO L853 garLoopResultBuilder]: At program point L350-3(lines 349 368) the Hoare annotation is: false [2021-11-07 01:12:08,955 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 336) no Hoare annotation was computed. [2021-11-07 01:12:08,955 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 293) no Hoare annotation was computed. [2021-11-07 01:12:08,955 INFO L853 garLoopResultBuilder]: At program point L319-1(lines 1 996) the Hoare annotation is: (let ((.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse0 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~1)) (.cse6 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 (or (and .cse1 .cse2 .cse3 (= ~waterLevel~0 (_ bv1 32)) .cse4) (and .cse1 .cse2 .cse5 .cse6 .cse3 .cse4))) (and .cse1 .cse0 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse4) (and .cse1 .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse2 .cse5 .cse6 .cse3))) [2021-11-07 01:12:08,955 INFO L857 garLoopResultBuilder]: For program point L319-2(lines 319 336) no Hoare annotation was computed. [2021-11-07 01:12:08,955 INFO L860 garLoopResultBuilder]: At program point L286-1(lines 286 293) the Hoare annotation is: true [2021-11-07 01:12:08,956 INFO L853 garLoopResultBuilder]: At program point L319-3(lines 1 996) the Hoare annotation is: false [2021-11-07 01:12:08,956 INFO L857 garLoopResultBuilder]: For program point L319-4(lines 319 336) no Hoare annotation was computed. [2021-11-07 01:12:08,956 INFO L853 garLoopResultBuilder]: At program point L319-5(lines 1 996) the Hoare annotation is: false [2021-11-07 01:12:08,956 INFO L857 garLoopResultBuilder]: For program point L386(lines 386 394) no Hoare annotation was computed. [2021-11-07 01:12:08,956 INFO L857 garLoopResultBuilder]: For program point L386-1(lines 386 394) no Hoare annotation was computed. [2021-11-07 01:12:08,956 INFO L857 garLoopResultBuilder]: For program point L386-2(lines 386 394) no Hoare annotation was computed. [2021-11-07 01:12:08,956 INFO L857 garLoopResultBuilder]: For program point L386-3(lines 386 394) no Hoare annotation was computed. [2021-11-07 01:12:08,956 INFO L857 garLoopResultBuilder]: For program point L386-4(lines 386 394) no Hoare annotation was computed. [2021-11-07 01:12:08,957 INFO L857 garLoopResultBuilder]: For program point L386-5(lines 386 394) no Hoare annotation was computed. [2021-11-07 01:12:08,957 INFO L853 garLoopResultBuilder]: At program point L553(lines 538 556) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_isLowWaterLevel_~tmp~6 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32))) (.cse4 (or (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (not (= ~waterLevel~0 (_ bv1 32))))) (.cse5 (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse5) (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-11-07 01:12:08,957 INFO L853 garLoopResultBuilder]: At program point L553-1(lines 538 556) the Hoare annotation is: false [2021-11-07 01:12:08,957 INFO L853 garLoopResultBuilder]: At program point L553-2(lines 538 556) the Hoare annotation is: false [2021-11-07 01:12:08,957 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:12:08,958 INFO L857 garLoopResultBuilder]: For program point L323(lines 323 333) no Hoare annotation was computed. [2021-11-07 01:12:08,958 INFO L857 garLoopResultBuilder]: For program point L323-2(lines 323 333) no Hoare annotation was computed. [2021-11-07 01:12:08,958 INFO L857 garLoopResultBuilder]: For program point L323-4(lines 323 333) no Hoare annotation was computed. [2021-11-07 01:12:08,958 INFO L857 garLoopResultBuilder]: For program point L588(lines 588 594) no Hoare annotation was computed. [2021-11-07 01:12:08,958 INFO L853 garLoopResultBuilder]: At program point L588-1(lines 588 594) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse6 .cse2) (and .cse0 .cse4 .cse6 .cse2 .cse5))) [2021-11-07 01:12:08,959 INFO L853 garLoopResultBuilder]: At program point L357(lines 357 363) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse3) (and .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse1 .cse2))) [2021-11-07 01:12:08,959 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2021-11-07 01:12:08,959 INFO L853 garLoopResultBuilder]: At program point L357-1(lines 357 363) the Hoare annotation is: false [2021-11-07 01:12:08,959 INFO L853 garLoopResultBuilder]: At program point L357-2(lines 357 363) the Hoare annotation is: false [2021-11-07 01:12:08,959 INFO L857 garLoopResultBuilder]: For program point L324-2(lines 324 330) no Hoare annotation was computed. [2021-11-07 01:12:08,959 INFO L857 garLoopResultBuilder]: For program point L324-4(lines 324 330) no Hoare annotation was computed. [2021-11-07 01:12:08,960 INFO L857 garLoopResultBuilder]: For program point L126(lines 126 130) no Hoare annotation was computed. [2021-11-07 01:12:08,960 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 01:12:08,960 INFO L853 garLoopResultBuilder]: At program point L260(lines 256 262) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:12:08,960 INFO L853 garLoopResultBuilder]: At program point L194(lines 189 197) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (not (= ~waterLevel~0 (_ bv0 32))))) (or (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32))))) [2021-11-07 01:12:08,960 INFO L853 garLoopResultBuilder]: At program point L194-1(lines 189 197) the Hoare annotation is: false [2021-11-07 01:12:08,961 INFO L853 garLoopResultBuilder]: At program point L194-2(lines 189 197) the Hoare annotation is: false [2021-11-07 01:12:08,961 INFO L860 garLoopResultBuilder]: At program point L295(lines 276 298) the Hoare annotation is: true [2021-11-07 01:12:08,961 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 01:12:08,961 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2021-11-07 01:12:08,961 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,962 INFO L857 garLoopResultBuilder]: For program point L528-2(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,962 INFO L857 garLoopResultBuilder]: For program point L528-3(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,962 INFO L857 garLoopResultBuilder]: For program point L528-5(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,962 INFO L857 garLoopResultBuilder]: For program point L528-6(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,962 INFO L857 garLoopResultBuilder]: For program point L528-8(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,962 INFO L857 garLoopResultBuilder]: For program point L528-9(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,963 INFO L857 garLoopResultBuilder]: For program point L528-11(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,963 INFO L857 garLoopResultBuilder]: For program point L528-12(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,963 INFO L857 garLoopResultBuilder]: For program point L528-14(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,963 INFO L857 garLoopResultBuilder]: For program point L528-15(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,963 INFO L857 garLoopResultBuilder]: For program point L528-17(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:12:08,967 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:12:08,969 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:12:09,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:12:09 BoogieIcfgContainer [2021-11-07 01:12:09,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:12:09,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:12:09,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:12:09,007 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:12:09,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:11:18" (3/4) ... [2021-11-07 01:12:09,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:12:09,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-07 01:12:09,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-07 01:12:09,042 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-07 01:12:09,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 01:12:09,045 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:12:09,046 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:12:09,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:12:09,077 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((methAndRunningLastTime == 0bv32 && (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && 0bv32 == tmp) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning))) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && 0bv32 == tmp) && \result == 0bv32) && systemActive == 1bv32) [2021-11-07 01:12:09,078 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && 0bv32 == tmp) && \result == 0bv32) && systemActive == 1bv32) [2021-11-07 01:12:09,080 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:12:09,081 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) [2021-11-07 01:12:09,082 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:12:09,082 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning [2021-11-07 01:12:09,083 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && tmp == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && methaneLevelCritical == 1bv32) && tmp___0 == 1bv32) || ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp___0 == 1bv32) [2021-11-07 01:12:09,084 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && tmp == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && tmp == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) [2021-11-07 01:12:09,087 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:12:09,087 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:12:09,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:12:09,154 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:12:09,155 INFO L168 Benchmark]: Toolchain (without parser) took 54707.75 ms. Allocated memory was 54.5 MB in the beginning and 285.2 MB in the end (delta: 230.7 MB). Free memory was 30.6 MB in the beginning and 190.2 MB in the end (delta: -159.6 MB). Peak memory consumption was 72.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,156 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:12:09,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.39 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 48.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,157 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.46 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 44.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,157 INFO L168 Benchmark]: Boogie Preprocessor took 67.05 ms. Allocated memory is still 67.1 MB. Free memory was 44.4 MB in the beginning and 41.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,158 INFO L168 Benchmark]: RCFGBuilder took 3299.57 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 48.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,159 INFO L168 Benchmark]: TraceAbstraction took 50192.98 ms. Allocated memory was 83.9 MB in the beginning and 285.2 MB in the end (delta: 201.3 MB). Free memory was 48.5 MB in the beginning and 201.7 MB in the end (delta: -153.2 MB). Peak memory consumption was 176.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,159 INFO L168 Benchmark]: Witness Printer took 146.77 ms. Allocated memory is still 285.2 MB. Free memory was 201.7 MB in the beginning and 190.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:12:09,162 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.3 MB in the beginning and 35.3 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 876.39 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.4 MB in the beginning and 48.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.46 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 44.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.05 ms. Allocated memory is still 67.1 MB. Free memory was 44.4 MB in the beginning and 41.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3299.57 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 41.6 MB in the beginning and 48.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 50192.98 ms. Allocated memory was 83.9 MB in the beginning and 285.2 MB in the end (delta: 201.3 MB). Free memory was 48.5 MB in the beginning and 201.7 MB in the end (delta: -153.2 MB). Peak memory consumption was 176.2 MB. Max. memory is 16.1 GB. * Witness Printer took 146.77 ms. Allocated memory is still 285.2 MB. Free memory was 201.7 MB in the beginning and 190.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 993]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 993]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 993]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 139 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 50.0s, OverallIterations: 14, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 23.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1621 SDtfs, 2563 SDslu, 3922 SDs, 0 SdLazy, 451 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1776 GetRequests, 1685 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=386occurred in iteration=13, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 3497 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 122 NumberOfFragments, 797 HoareAnnotationTreeSize, 55 FomulaSimplifications, 14334607 FormulaSimplificationTreeSizeReduction, 6.6s HoareSimplificationTime, 55 FomulaSimplificationsInter, 3787386 FormulaSimplificationTreeSizeReductionInter, 16.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 879 NumberOfCodeBlocks, 879 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1722 ConstructedInterpolants, 0 QuantifiedInterpolants, 3422 SizeOfPredicates, 38 NumberOfNonLiveVariables, 4249 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 36 InterpolantComputations, 27 PerfectInterpolantSequences, 560/608 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && tmp == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && tmp == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 276]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 538]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 303]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 538]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && tmp == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && methaneLevelCritical == 1bv32) && tmp___0 == 1bv32) || ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp___0 == 1bv32) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 538]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 286]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 357]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32))) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((methAndRunningLastTime == 0bv32 && (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && 0bv32 == tmp) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning))) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && 0bv32 == tmp) && \result == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 357]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 578]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && 0bv32 == tmp) && \result == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 357]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 349]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 588]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 256]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning RESULT: Ultimate proved your program to be correct! [2021-11-07 01:12:09,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4d11f1-1c88-4294-90ca-0ac12600452c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE