./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:50:56,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:50:56,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:50:56,668 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:50:56,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:50:56,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:50:56,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:50:56,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:50:56,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:50:56,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:50:56,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:50:56,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:50:56,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:50:56,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:50:56,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:50:56,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:50:56,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:50:56,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:50:56,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:50:56,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:50:56,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:50:56,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:50:56,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:50:56,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:50:56,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:50:56,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:50:56,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:50:56,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:50:56,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:50:56,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:50:56,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:50:56,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:50:56,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:50:56,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:50:56,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:50:56,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:50:56,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:50:56,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:50:56,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:50:56,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:50:56,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:50:56,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:50:56,773 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:50:56,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:50:56,775 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:50:56,775 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:50:56,775 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:50:56,776 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:50:56,776 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:50:56,776 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:50:56,776 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:50:56,777 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:50:56,777 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:50:56,777 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:50:56,777 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:50:56,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:50:56,778 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:50:56,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:50:56,779 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:50:56,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:50:56,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:50:56,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:50:56,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:50:56,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:50:56,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:50:56,781 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:50:56,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:50:56,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:50:56,782 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:50:56,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:50:56,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:50:56,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:50:56,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:50:56,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:50:56,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:50:56,784 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:50:56,784 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:50:56,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:50:56,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:50:56,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:50:56,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:50:56,785 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_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2021-10-29 04:50:57,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:50:57,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:50:57,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:50:57,194 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:50:57,195 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:50:57,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-29 04:50:57,304 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/38f0be246/aea04967c4c048bf8b30870c1213eef9/FLAGb25608d87 [2021-10-29 04:50:58,060 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:50:58,061 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-29 04:50:58,096 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/38f0be246/aea04967c4c048bf8b30870c1213eef9/FLAGb25608d87 [2021-10-29 04:50:58,304 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/38f0be246/aea04967c4c048bf8b30870c1213eef9 [2021-10-29 04:50:58,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:50:58,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:50:58,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:50:58,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:50:58,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:50:58,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:50:58" (1/1) ... [2021-10-29 04:50:58,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6045a420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:58, skipping insertion in model container [2021-10-29 04:50:58,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:50:58" (1/1) ... [2021-10-29 04:50:58,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:50:58,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:50:58,711 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_94a0270b-077d-4103-89c7-8366ccb2bb7f/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2021-10-29 04:50:58,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:50:58,781 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-29 04:50:58,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2341d252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:50:58, skipping insertion in model container [2021-10-29 04:50:58,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:50:58,783 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:50:58,785 INFO L168 Benchmark]: Toolchain (without parser) took 474.10 ms. Allocated memory is still 127.9 MB. Free memory was 96.9 MB in the beginning and 96.8 MB in the end (delta: 147.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:50:58,786 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 127.9 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:50:58,787 INFO L168 Benchmark]: CACSL2BoogieTranslator took 469.87 ms. Allocated memory is still 127.9 MB. Free memory was 96.9 MB in the beginning and 96.8 MB in the end (delta: 147.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:50:58,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 127.9 MB. Free memory is still 83.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 469.87 ms. Allocated memory is still 127.9 MB. Free memory was 96.9 MB in the beginning and 96.8 MB in the end (delta: 147.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 660]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:51:01,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:51:01,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:51:01,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:51:01,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:51:01,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:51:01,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:51:01,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:51:01,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:51:01,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:51:01,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:51:01,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:51:01,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:51:01,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:51:01,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:51:01,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:51:01,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:51:01,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:51:01,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:51:01,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:51:01,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:51:01,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:51:01,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:51:01,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:51:01,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:51:01,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:51:01,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:51:01,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:51:01,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:51:01,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:51:01,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:51:01,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:51:01,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:51:01,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:51:01,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:51:01,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:51:01,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:51:01,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:51:01,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:51:01,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:51:01,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:51:01,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:51:01,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:51:01,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:51:01,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:51:01,852 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:51:01,852 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:51:01,852 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:51:01,853 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:51:01,853 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:51:01,853 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:51:01,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:51:01,857 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:51:01,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:51:01,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:51:01,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:51:01,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:51:01,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:51:01,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:51:01,859 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:51:01,859 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:51:01,859 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:51:01,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:51:01,860 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:51:01,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:51:01,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:51:01,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:51:01,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:51:01,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:51:01,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:51:01,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:51:01,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:51:01,863 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:51:01,863 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:51:01,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:51:01,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:51:01,865 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:51:01,865 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_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2021-10-29 04:51:02,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:51:02,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:51:02,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:51:02,368 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:51:02,369 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:51:02,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-29 04:51:02,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/177412e4b/5847082fb35f4ada9ac7d6857cccbae2/FLAG8a64bb6ff [2021-10-29 04:51:03,127 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:51:03,144 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-29 04:51:03,169 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/177412e4b/5847082fb35f4ada9ac7d6857cccbae2/FLAG8a64bb6ff [2021-10-29 04:51:03,430 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/data/177412e4b/5847082fb35f4ada9ac7d6857cccbae2 [2021-10-29 04:51:03,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:51:03,435 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:51:03,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:51:03,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:51:03,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:51:03,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:51:03" (1/1) ... [2021-10-29 04:51:03,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292af08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:03, skipping insertion in model container [2021-10-29 04:51:03,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:51:03" (1/1) ... [2021-10-29 04:51:03,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:51:03,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:51:03,842 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_94a0270b-077d-4103-89c7-8366ccb2bb7f/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2021-10-29 04:51:03,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:51:03,988 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:51:03,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:51:04,039 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_94a0270b-077d-4103-89c7-8366ccb2bb7f/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2021-10-29 04:51:04,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:51:04,092 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:51:04,139 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_94a0270b-077d-4103-89c7-8366ccb2bb7f/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2021-10-29 04:51:04,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:51:04,252 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:51:04,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04 WrapperNode [2021-10-29 04:51:04,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:51:04,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:51:04,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:51:04,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:51:04,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:51:04,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:51:04,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:51:04,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:51:04,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:51:04,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:51:04,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:51:04,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:51:04,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (1/1) ... [2021-10-29 04:51:04,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:51:04,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:04,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:51:04,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:51:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:51:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:51:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:51:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:51:07,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:51:07,405 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-29 04:51:07,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:07 BoogieIcfgContainer [2021-10-29 04:51:07,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:51:07,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:51:07,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:51:07,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:51:07,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:51:03" (1/3) ... [2021-10-29 04:51:07,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed53bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:51:07, skipping insertion in model container [2021-10-29 04:51:07,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:04" (2/3) ... [2021-10-29 04:51:07,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed53bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:51:07, skipping insertion in model container [2021-10-29 04:51:07,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:07" (3/3) ... [2021-10-29 04:51:07,420 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2021-10-29 04:51:07,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:51:07,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:51:07,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:51:07,516 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 [2021-10-29 04:51:07,516 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:51:07,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:51:07,552 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:07,553 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:07,554 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:07,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:07,567 INFO L85 PathProgramCache]: Analyzing trace with hash 815277316, now seen corresponding path program 1 times [2021-10-29 04:51:07,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:07,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171483347] [2021-10-29 04:51:07,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:07,583 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:07,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:07,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:07,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:51:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:07,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:51:07,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:07,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:08,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:08,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171483347] [2021-10-29 04:51:08,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171483347] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:08,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:08,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:51:08,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562279934] [2021-10-29 04:51:08,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:51:08,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:08,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:51:08,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:51:08,071 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:08,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:08,139 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2021-10-29 04:51:08,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:51:08,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-29 04:51:08,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:08,160 INFO L225 Difference]: With dead ends: 239 [2021-10-29 04:51:08,160 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 04:51:08,165 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 [2021-10-29 04:51:08,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 04:51:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-29 04:51:08,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 118 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2021-10-29 04:51:08,244 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2021-10-29 04:51:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:08,244 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2021-10-29 04:51:08,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:08,245 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2021-10-29 04:51:08,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:51:08,247 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:08,247 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:08,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-29 04:51:08,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:08,462 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:08,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash 596441347, now seen corresponding path program 1 times [2021-10-29 04:51:08,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:08,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849657174] [2021-10-29 04:51:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:08,465 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:08,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:08,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:08,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:51:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:08,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:08,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:08,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:08,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:08,882 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:08,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849657174] [2021-10-29 04:51:08,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849657174] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:08,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:08,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:51:08,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386899938] [2021-10-29 04:51:08,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:51:08,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:08,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:51:08,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:51:08,894 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:08,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:08,912 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-10-29 04:51:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:51:08,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 04:51:08,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:08,914 INFO L225 Difference]: With dead ends: 119 [2021-10-29 04:51:08,914 INFO L226 Difference]: Without dead ends: 51 [2021-10-29 04:51:08,916 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 [2021-10-29 04:51:08,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-29 04:51:08,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-29 04:51:08,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-29 04:51:08,923 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-29 04:51:08,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:08,923 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-29 04:51:08,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:08,924 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-29 04:51:08,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:51:08,925 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:08,925 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] [2021-10-29 04:51:08,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:09,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:09,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash -781547841, now seen corresponding path program 1 times [2021-10-29 04:51:09,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:09,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015366669] [2021-10-29 04:51:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:09,144 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:09,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:09,146 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:09,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:51:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:09,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:09,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:09,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:09,602 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:09,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015366669] [2021-10-29 04:51:09,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015366669] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:09,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:09,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:51:09,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057496199] [2021-10-29 04:51:09,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:51:09,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:09,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:51:09,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:51:09,606 INFO L87 Difference]: Start difference. First operand 51 states and 74 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) [2021-10-29 04:51:09,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:09,640 INFO L93 Difference]: Finished difference Result 163 states and 244 transitions. [2021-10-29 04:51:09,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:51:09,640 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 [2021-10-29 04:51:09,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:09,642 INFO L225 Difference]: With dead ends: 163 [2021-10-29 04:51:09,643 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 04:51:09,643 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 [2021-10-29 04:51:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 04:51:09,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 71. [2021-10-29 04:51:09,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.5) internal successors, (105), 70 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:09,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 105 transitions. [2021-10-29 04:51:09,659 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 105 transitions. Word has length 24 [2021-10-29 04:51:09,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:09,659 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 105 transitions. [2021-10-29 04:51:09,660 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) [2021-10-29 04:51:09,660 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 105 transitions. [2021-10-29 04:51:09,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:51:09,661 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:09,661 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] [2021-10-29 04:51:09,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:09,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:09,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:09,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:09,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1063081859, now seen corresponding path program 1 times [2021-10-29 04:51:09,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:09,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [149356780] [2021-10-29 04:51:09,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:09,880 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:09,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:09,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:09,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:51:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:10,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:10,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:10,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:10,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:10,322 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:10,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [149356780] [2021-10-29 04:51:10,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [149356780] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:10,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:10,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:51:10,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688592111] [2021-10-29 04:51:10,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:51:10,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:10,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:51:10,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:10,325 INFO L87 Difference]: Start difference. First operand 71 states and 105 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:10,420 INFO L93 Difference]: Finished difference Result 157 states and 235 transitions. [2021-10-29 04:51:10,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:51:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-29 04:51:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:10,422 INFO L225 Difference]: With dead ends: 157 [2021-10-29 04:51:10,423 INFO L226 Difference]: Without dead ends: 93 [2021-10-29 04:51:10,423 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 [2021-10-29 04:51:10,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-29 04:51:10,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2021-10-29 04:51:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4555555555555555) internal successors, (131), 90 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:10,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2021-10-29 04:51:10,440 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 26 [2021-10-29 04:51:10,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:10,441 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2021-10-29 04:51:10,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2021-10-29 04:51:10,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:51:10,442 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:10,443 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] [2021-10-29 04:51:10,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:10,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:10,658 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:10,659 INFO L85 PathProgramCache]: Analyzing trace with hash -460039864, now seen corresponding path program 1 times [2021-10-29 04:51:10,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:10,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176755314] [2021-10-29 04:51:10,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:10,661 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:10,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:10,662 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:10,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:51:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:10,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:51:10,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:11,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:11,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:11,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:11,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176755314] [2021-10-29 04:51:11,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176755314] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:11,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:11,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 04:51:11,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759557743] [2021-10-29 04:51:11,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:51:11,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:51:11,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:51:11,196 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:11,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:11,337 INFO L93 Difference]: Finished difference Result 452 states and 663 transitions. [2021-10-29 04:51:11,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 04:51:11,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-29 04:51:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:11,343 INFO L225 Difference]: With dead ends: 452 [2021-10-29 04:51:11,344 INFO L226 Difference]: Without dead ends: 368 [2021-10-29 04:51:11,346 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:51:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-10-29 04:51:11,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 164. [2021-10-29 04:51:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 163 states have (on average 1.4294478527607362) internal successors, (233), 163 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:11,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 233 transitions. [2021-10-29 04:51:11,400 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 233 transitions. Word has length 27 [2021-10-29 04:51:11,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:11,400 INFO L470 AbstractCegarLoop]: Abstraction has 164 states and 233 transitions. [2021-10-29 04:51:11,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 233 transitions. [2021-10-29 04:51:11,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:51:11,402 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:11,402 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] [2021-10-29 04:51:11,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:11,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:11,620 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:11,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1894185024, now seen corresponding path program 1 times [2021-10-29 04:51:11,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:11,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1270787625] [2021-10-29 04:51:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:11,622 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:11,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:11,623 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:11,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:51:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:11,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:51:11,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:12,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:12,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:12,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:12,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:12,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1270787625] [2021-10-29 04:51:12,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1270787625] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:12,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:12,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 04:51:12,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363875421] [2021-10-29 04:51:12,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:51:12,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:12,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:51:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:51:12,130 INFO L87 Difference]: Start difference. First operand 164 states and 233 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:12,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:12,354 INFO L93 Difference]: Finished difference Result 605 states and 865 transitions. [2021-10-29 04:51:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 04:51:12,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-10-29 04:51:12,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:12,367 INFO L225 Difference]: With dead ends: 605 [2021-10-29 04:51:12,367 INFO L226 Difference]: Without dead ends: 448 [2021-10-29 04:51:12,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 04:51:12,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2021-10-29 04:51:12,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 162. [2021-10-29 04:51:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.4099378881987579) internal successors, (227), 161 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 227 transitions. [2021-10-29 04:51:12,409 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 227 transitions. Word has length 28 [2021-10-29 04:51:12,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:12,410 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 227 transitions. [2021-10-29 04:51:12,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:12,410 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 227 transitions. [2021-10-29 04:51:12,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:51:12,420 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:12,420 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] [2021-10-29 04:51:12,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:12,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:12,635 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:12,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:12,636 INFO L85 PathProgramCache]: Analyzing trace with hash -44877900, now seen corresponding path program 1 times [2021-10-29 04:51:12,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:12,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410445674] [2021-10-29 04:51:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:12,639 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:12,640 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:12,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 04:51:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:12,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:51:12,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:13,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:13,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:13,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:13,176 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:13,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410445674] [2021-10-29 04:51:13,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410445674] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:13,177 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:13,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 04:51:13,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368801403] [2021-10-29 04:51:13,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:51:13,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:51:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:51:13,178 INFO L87 Difference]: Start difference. First operand 162 states and 227 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:13,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:13,304 INFO L93 Difference]: Finished difference Result 479 states and 665 transitions. [2021-10-29 04:51:13,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 04:51:13,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 04:51:13,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:13,308 INFO L225 Difference]: With dead ends: 479 [2021-10-29 04:51:13,308 INFO L226 Difference]: Without dead ends: 324 [2021-10-29 04:51:13,309 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:51:13,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2021-10-29 04:51:13,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 174. [2021-10-29 04:51:13,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.3815028901734103) internal successors, (239), 173 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:13,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions. [2021-10-29 04:51:13,336 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 33 [2021-10-29 04:51:13,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:13,337 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions. [2021-10-29 04:51:13,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:13,337 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions. [2021-10-29 04:51:13,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:51:13,338 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:13,339 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] [2021-10-29 04:51:13,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:13,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:13,553 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:13,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:13,553 INFO L85 PathProgramCache]: Analyzing trace with hash 656186678, now seen corresponding path program 1 times [2021-10-29 04:51:13,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:13,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090885738] [2021-10-29 04:51:13,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:13,555 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:13,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:13,556 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:13,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 04:51:13,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:13,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 04:51:13,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:13,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:13,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:14,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:14,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090885738] [2021-10-29 04:51:14,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090885738] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:14,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:14,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 04:51:14,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131728558] [2021-10-29 04:51:14,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 04:51:14,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 04:51:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 04:51:14,141 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:14,271 INFO L93 Difference]: Finished difference Result 513 states and 699 transitions. [2021-10-29 04:51:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:51:14,272 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 04:51:14,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:14,277 INFO L225 Difference]: With dead ends: 513 [2021-10-29 04:51:14,278 INFO L226 Difference]: Without dead ends: 346 [2021-10-29 04:51:14,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:51:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2021-10-29 04:51:14,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 182. [2021-10-29 04:51:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.3646408839779005) internal successors, (247), 181 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2021-10-29 04:51:14,315 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 33 [2021-10-29 04:51:14,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:14,316 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2021-10-29 04:51:14,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2021-10-29 04:51:14,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:51:14,317 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:14,317 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] [2021-10-29 04:51:14,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:14,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:14,535 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:14,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash 69380664, now seen corresponding path program 1 times [2021-10-29 04:51:14,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:14,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [424168998] [2021-10-29 04:51:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:14,536 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:14,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:14,538 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:14,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 04:51:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:14,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:14,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:15,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:15,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:15,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:15,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [424168998] [2021-10-29 04:51:15,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [424168998] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:15,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:15,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:51:15,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3043005] [2021-10-29 04:51:15,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:51:15,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:15,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:51:15,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:51:15,170 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:15,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:15,295 INFO L93 Difference]: Finished difference Result 592 states and 807 transitions. [2021-10-29 04:51:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:51:15,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 04:51:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:15,300 INFO L225 Difference]: With dead ends: 592 [2021-10-29 04:51:15,300 INFO L226 Difference]: Without dead ends: 417 [2021-10-29 04:51:15,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:51:15,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-29 04:51:15,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 327. [2021-10-29 04:51:15,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 326 states have (on average 1.3496932515337423) internal successors, (440), 326 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:15,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 440 transitions. [2021-10-29 04:51:15,374 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 440 transitions. Word has length 33 [2021-10-29 04:51:15,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:15,374 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 440 transitions. [2021-10-29 04:51:15,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:15,375 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 440 transitions. [2021-10-29 04:51:15,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 04:51:15,376 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:15,376 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] [2021-10-29 04:51:15,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:15,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:15,590 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:15,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1964012792, now seen corresponding path program 1 times [2021-10-29 04:51:15,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:15,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226997384] [2021-10-29 04:51:15,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:15,592 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:15,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:15,593 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:15,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 04:51:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:15,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:15,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:16,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:16,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:16,190 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:16,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226997384] [2021-10-29 04:51:16,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226997384] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:16,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:16,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:51:16,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029948836] [2021-10-29 04:51:16,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:51:16,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:16,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:51:16,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:16,204 INFO L87 Difference]: Start difference. First operand 327 states and 440 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:16,322 INFO L93 Difference]: Finished difference Result 535 states and 716 transitions. [2021-10-29 04:51:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:51:16,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-29 04:51:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:16,328 INFO L225 Difference]: With dead ends: 535 [2021-10-29 04:51:16,328 INFO L226 Difference]: Without dead ends: 533 [2021-10-29 04:51:16,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:16,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-10-29 04:51:16,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 400. [2021-10-29 04:51:16,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.3734335839598997) internal successors, (548), 399 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 548 transitions. [2021-10-29 04:51:16,407 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 548 transitions. Word has length 34 [2021-10-29 04:51:16,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:16,408 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 548 transitions. [2021-10-29 04:51:16,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:16,409 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 548 transitions. [2021-10-29 04:51:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 04:51:16,411 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:16,411 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:16,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:16,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:16,634 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2090460060, now seen corresponding path program 1 times [2021-10-29 04:51:16,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:16,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010506063] [2021-10-29 04:51:16,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:16,637 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:16,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:16,638 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:16,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 04:51:17,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:17,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:51:17,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:51:17,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:17,628 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:51:17,629 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:17,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010506063] [2021-10-29 04:51:17,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010506063] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:51:17,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [818657450] [2021-10-29 04:51:17,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:17,630 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 04:51:17,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 04:51:17,632 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 04:51:17,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-29 04:51:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:18,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 04:51:18,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:18,472 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:51:18,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:18,759 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:51:18,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [818657450] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:51:18,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676785093] [2021-10-29 04:51:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:18,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:51:18,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:51:18,765 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:51:18,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-29 04:51:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:19,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 04:51:19,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:51:19,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:19,767 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 04:51:19,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676785093] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 04:51:19,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 04:51:19,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 7 [2021-10-29 04:51:19,769 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395660024] [2021-10-29 04:51:19,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:51:19,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:51:19,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:51:19,772 INFO L87 Difference]: Start difference. First operand 400 states and 548 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:24,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:24,313 INFO L93 Difference]: Finished difference Result 4312 states and 5893 transitions. [2021-10-29 04:51:24,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-29 04:51:24,314 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-29 04:51:24,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:24,343 INFO L225 Difference]: With dead ends: 4312 [2021-10-29 04:51:24,343 INFO L226 Difference]: Without dead ends: 3919 [2021-10-29 04:51:24,345 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-10-29 04:51:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3919 states. [2021-10-29 04:51:24,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3919 to 1175. [2021-10-29 04:51:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 1174 states have (on average 1.393526405451448) internal successors, (1636), 1174 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1636 transitions. [2021-10-29 04:51:24,562 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1636 transitions. Word has length 58 [2021-10-29 04:51:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:24,562 INFO L470 AbstractCegarLoop]: Abstraction has 1175 states and 1636 transitions. [2021-10-29 04:51:24,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1636 transitions. [2021-10-29 04:51:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 04:51:24,565 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:24,565 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:24,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:24,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-10-29 04:51:24,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:25,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:25,189 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:25,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:25,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1832294622, now seen corresponding path program 1 times [2021-10-29 04:51:25,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:25,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649718089] [2021-10-29 04:51:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:25,190 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:25,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:25,192 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:25,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 04:51:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:25,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:51:25,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-29 04:51:25,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-29 04:51:26,093 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:26,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649718089] [2021-10-29 04:51:26,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649718089] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:26,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:26,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 04:51:26,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073247491] [2021-10-29 04:51:26,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:51:26,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:26,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:51:26,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:51:26,096 INFO L87 Difference]: Start difference. First operand 1175 states and 1636 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:26,292 INFO L93 Difference]: Finished difference Result 1834 states and 2495 transitions. [2021-10-29 04:51:26,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:51:26,293 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-29 04:51:26,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:26,299 INFO L225 Difference]: With dead ends: 1834 [2021-10-29 04:51:26,299 INFO L226 Difference]: Without dead ends: 666 [2021-10-29 04:51:26,301 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 [2021-10-29 04:51:26,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-29 04:51:26,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 273. [2021-10-29 04:51:26,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.286764705882353) internal successors, (350), 272 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 350 transitions. [2021-10-29 04:51:26,351 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 350 transitions. Word has length 58 [2021-10-29 04:51:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:26,353 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 350 transitions. [2021-10-29 04:51:26,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:26,353 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 350 transitions. [2021-10-29 04:51:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 04:51:26,354 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:26,355 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:26,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:26,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:26,571 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:26,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1973254398, now seen corresponding path program 1 times [2021-10-29 04:51:26,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:26,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1184855003] [2021-10-29 04:51:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:26,573 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:26,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:26,577 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:26,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-29 04:51:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:27,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:27,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:27,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:51:27,428 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:27,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1184855003] [2021-10-29 04:51:27,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1184855003] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:27,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:27,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:51:27,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707502505] [2021-10-29 04:51:27,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:51:27,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:27,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:51:27,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:51:27,430 INFO L87 Difference]: Start difference. First operand 273 states and 350 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:31,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:31,021 INFO L93 Difference]: Finished difference Result 538 states and 692 transitions. [2021-10-29 04:51:31,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:51:31,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-29 04:51:31,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:31,024 INFO L225 Difference]: With dead ends: 538 [2021-10-29 04:51:31,025 INFO L226 Difference]: Without dead ends: 272 [2021-10-29 04:51:31,025 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:51:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-29 04:51:31,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-10-29 04:51:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.2592592592592593) internal successors, (340), 270 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) [2021-10-29 04:51:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 340 transitions. [2021-10-29 04:51:31,069 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 340 transitions. Word has length 58 [2021-10-29 04:51:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:31,070 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 340 transitions. [2021-10-29 04:51:31,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 340 transitions. [2021-10-29 04:51:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-29 04:51:31,072 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:51:31,072 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:31,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-29 04:51:31,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:31,288 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:51:31,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:51:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1655944216, now seen corresponding path program 1 times [2021-10-29 04:51:31,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:51:31,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1678953925] [2021-10-29 04:51:31,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:51:31,289 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:51:31,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:51:31,290 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:51:31,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-29 04:51:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:51:31,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:51:31,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:51:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 04:51:31,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:51:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-29 04:51:32,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:51:32,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1678953925] [2021-10-29 04:51:32,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1678953925] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:51:32,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:51:32,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:51:32,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097050437] [2021-10-29 04:51:32,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:51:32,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:51:32,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:51:32,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:32,072 INFO L87 Difference]: Start difference. First operand 271 states and 340 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:33,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:51:33,985 INFO L93 Difference]: Finished difference Result 527 states and 661 transitions. [2021-10-29 04:51:33,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:51:33,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 61 [2021-10-29 04:51:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:51:33,987 INFO L225 Difference]: With dead ends: 527 [2021-10-29 04:51:33,987 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 04:51:33,988 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:51:33,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 04:51:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 04:51:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 04:51:33,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2021-10-29 04:51:33,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:51:33,990 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 04:51:33,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:51:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 04:51:33,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:51:33,993 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:51:33,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:51:33,994 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:51:34,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-10-29 04:51:34,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:51:34,232 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 04:51:34,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,290 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:34,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:35,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:35,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:35,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:36,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:37,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:38,171 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:38,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point L299-11(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point L299-12(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point L299-14(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point L299-15(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point L299-17(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2021-10-29 04:51:51,246 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 376) no Hoare annotation was computed. [2021-10-29 04:51:51,247 INFO L857 garLoopResultBuilder]: For program point L366-2(lines 366 376) no Hoare annotation was computed. [2021-10-29 04:51:51,247 INFO L857 garLoopResultBuilder]: For program point L366-4(lines 366 376) no Hoare annotation was computed. [2021-10-29 04:51:51,247 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 209) no Hoare annotation was computed. [2021-10-29 04:51:51,247 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 201 209) no Hoare annotation was computed. [2021-10-29 04:51:51,247 INFO L857 garLoopResultBuilder]: For program point L201-2(lines 201 209) no Hoare annotation was computed. [2021-10-29 04:51:51,248 INFO L853 garLoopResultBuilder]: At program point L466(lines 461 469) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse4) (and .cse0 .cse3 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4))) [2021-10-29 04:51:51,248 INFO L853 garLoopResultBuilder]: At program point L466-1(lines 461 469) the Hoare annotation is: false [2021-10-29 04:51:51,248 INFO L853 garLoopResultBuilder]: At program point L466-2(lines 461 469) the Hoare annotation is: false [2021-10-29 04:51:51,248 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 373) no Hoare annotation was computed. [2021-10-29 04:51:51,248 INFO L857 garLoopResultBuilder]: For program point L367-2(lines 367 373) no Hoare annotation was computed. [2021-10-29 04:51:51,248 INFO L857 garLoopResultBuilder]: For program point L367-4(lines 367 373) no Hoare annotation was computed. [2021-10-29 04:51:51,248 INFO L857 garLoopResultBuilder]: For program point L171(lines 171 188) no Hoare annotation was computed. [2021-10-29 04:51:51,248 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 171 188) no Hoare annotation was computed. [2021-10-29 04:51:51,249 INFO L857 garLoopResultBuilder]: For program point L171-2(lines 171 188) no Hoare annotation was computed. [2021-10-29 04:51:51,249 INFO L857 garLoopResultBuilder]: For program point L171-3(lines 171 188) no Hoare annotation was computed. [2021-10-29 04:51:51,249 INFO L857 garLoopResultBuilder]: For program point L171-4(lines 171 188) no Hoare annotation was computed. [2021-10-29 04:51:51,249 INFO L857 garLoopResultBuilder]: For program point L171-5(lines 171 188) no Hoare annotation was computed. [2021-10-29 04:51:51,249 INFO L853 garLoopResultBuilder]: At program point L139(lines 138 157) the Hoare annotation is: (let ((.cse5 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (not .cse5)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse4 .cse3) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse4 .cse2) (and .cse0 .cse1 .cse5 .cse3)))) [2021-10-29 04:51:51,249 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 139 145) no Hoare annotation was computed. [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L139-2(lines 138 157) the Hoare annotation is: false [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L139-3(lines 138 157) the Hoare annotation is: false [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L305(lines 290 308) the Hoare annotation is: false [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L305-1(lines 290 308) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (not (= ULTIMATE.start_isHighWaterLevel_~tmp~3 (_ bv0 32)))) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 .cse4 .cse5 .cse6 .cse2 .cse3) (and .cse0 .cse4 .cse5 (= ~waterLevel~0 (_ bv1 32)) .cse6 .cse2 .cse3))) [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L305-2(lines 290 308) the Hoare annotation is: false [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L305-3(lines 290 308) the Hoare annotation is: false [2021-10-29 04:51:51,250 INFO L853 garLoopResultBuilder]: At program point L305-4(lines 290 308) the Hoare annotation is: false [2021-10-29 04:51:51,251 INFO L853 garLoopResultBuilder]: At program point L305-5(lines 290 308) the Hoare annotation is: false [2021-10-29 04:51:51,251 INFO L853 garLoopResultBuilder]: At program point L537-2(lines 537 551) the Hoare annotation is: false [2021-10-29 04:51:51,251 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2021-10-29 04:51:51,251 INFO L853 garLoopResultBuilder]: At program point L75-1(lines 75 81) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32)))) (or (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse3 (not (= ~systemActive~0 (_ bv0 32)))))) [2021-10-29 04:51:51,251 INFO L857 garLoopResultBuilder]: For program point L538(line 538) no Hoare annotation was computed. [2021-10-29 04:51:51,251 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2021-10-29 04:51:51,251 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 183) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 175 183) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L175-2(lines 175 183) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L175-3(lines 175 183) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L175-4(lines 175 183) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L175-5(lines 175 183) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2021-10-29 04:51:51,252 INFO L857 garLoopResultBuilder]: For program point L506-2(lines 506 512) no Hoare annotation was computed. [2021-10-29 04:51:51,253 INFO L857 garLoopResultBuilder]: For program point L506-3(lines 506 512) no Hoare annotation was computed. [2021-10-29 04:51:51,253 INFO L857 garLoopResultBuilder]: For program point L506-4(lines 506 512) no Hoare annotation was computed. [2021-10-29 04:51:51,253 INFO L857 garLoopResultBuilder]: For program point L506-5(lines 506 512) no Hoare annotation was computed. [2021-10-29 04:51:51,253 INFO L857 garLoopResultBuilder]: For program point L441(lines 441 445) no Hoare annotation was computed. [2021-10-29 04:51:51,253 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 545) no Hoare annotation was computed. [2021-10-29 04:51:51,253 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 139 145) no Hoare annotation was computed. [2021-10-29 04:51:51,254 INFO L853 garLoopResultBuilder]: At program point L409(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)) [2021-10-29 04:51:51,254 INFO L853 garLoopResultBuilder]: At program point L146(lines 146 152) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse4) (and .cse0 .cse3 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse4))) [2021-10-29 04:51:51,254 INFO L853 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2021-10-29 04:51:51,254 INFO L853 garLoopResultBuilder]: At program point L146-1(lines 146 152) the Hoare annotation is: false [2021-10-29 04:51:51,254 INFO L853 garLoopResultBuilder]: At program point L146-2(lines 146 152) the Hoare annotation is: false [2021-10-29 04:51:51,254 INFO L857 garLoopResultBuilder]: For program point L609(lines 609 616) no Hoare annotation was computed. [2021-10-29 04:51:51,254 INFO L860 garLoopResultBuilder]: At program point L609-1(lines 609 616) the Hoare annotation is: true [2021-10-29 04:51:51,254 INFO L853 garLoopResultBuilder]: At program point L511(lines 502 515) the Hoare annotation is: false [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L511-1(lines 502 515) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (not (= ~systemActive~0 (_ bv0 32)))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse2 .cse3) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= ~waterLevel~0 (_ bv1 32)) .cse2 .cse3))) [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L511-2(lines 502 515) the Hoare annotation is: false [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L511-3(lines 502 515) the Hoare annotation is: false [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L511-4(lines 502 515) the Hoare annotation is: false [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L511-5(lines 502 515) the Hoare annotation is: false [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L250(lines 245 253) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|)) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 (= ~methAndRunningLastTime~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32)))) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3) (and .cse0 .cse1 .cse2 .cse3))) [2021-10-29 04:51:51,255 INFO L853 garLoopResultBuilder]: At program point L250-1(lines 245 253) the Hoare annotation is: false [2021-10-29 04:51:51,256 INFO L853 garLoopResultBuilder]: At program point L250-2(lines 245 253) the Hoare annotation is: false [2021-10-29 04:51:51,257 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-10-29 04:51:51,258 INFO L853 garLoopResultBuilder]: At program point L85-1(lines 85 91) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32)))) (or (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse3 (not (= ~systemActive~0 (_ bv0 32)))))) [2021-10-29 04:51:51,258 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 04:51:51,258 INFO L853 garLoopResultBuilder]: At program point L417(lines 412 420) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 04:51:51,258 INFO L853 garLoopResultBuilder]: At program point L351(lines 346 353) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 04:51:51,259 INFO L857 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-10-29 04:51:51,259 INFO L857 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2021-10-29 04:51:51,259 INFO L857 garLoopResultBuilder]: For program point L318-3(lines 318 322) no Hoare annotation was computed. [2021-10-29 04:51:51,259 INFO L857 garLoopResultBuilder]: For program point L318-5(lines 318 322) no Hoare annotation was computed. [2021-10-29 04:51:51,259 INFO L857 garLoopResultBuilder]: For program point L318-6(lines 318 322) no Hoare annotation was computed. [2021-10-29 04:51:51,260 INFO L857 garLoopResultBuilder]: For program point L318-8(lines 318 322) no Hoare annotation was computed. [2021-10-29 04:51:51,260 INFO L860 garLoopResultBuilder]: At program point L618(lines 599 621) the Hoare annotation is: true [2021-10-29 04:51:51,260 INFO L853 garLoopResultBuilder]: At program point L585(lines 581 587) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 04:51:51,260 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 457) no Hoare annotation was computed. [2021-10-29 04:51:51,260 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 04:51:51,261 INFO L853 garLoopResultBuilder]: At program point L521(lines 516 524) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (not (= ~systemActive~0 (_ bv0 32)))) [2021-10-29 04:51:51,261 INFO L853 garLoopResultBuilder]: At program point L521-1(lines 516 524) the Hoare annotation is: false [2021-10-29 04:51:51,261 INFO L853 garLoopResultBuilder]: At program point L521-2(lines 516 524) the Hoare annotation is: false [2021-10-29 04:51:51,261 INFO L853 garLoopResultBuilder]: At program point L324(lines 309 327) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~4 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) [2021-10-29 04:51:51,261 INFO L853 garLoopResultBuilder]: At program point L324-1(lines 309 327) the Hoare annotation is: false [2021-10-29 04:51:51,262 INFO L853 garLoopResultBuilder]: At program point L324-2(lines 309 327) the Hoare annotation is: false [2021-10-29 04:51:51,262 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 04:51:51,262 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2021-10-29 04:51:51,262 INFO L857 garLoopResultBuilder]: For program point L362(lines 362 379) no Hoare annotation was computed. [2021-10-29 04:51:51,262 INFO L853 garLoopResultBuilder]: At program point L362-1(lines 1 996) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~waterLevel~0 (_ bv2 32)))) (or (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse3 (not (= ~systemActive~0 (_ bv0 32)))))) [2021-10-29 04:51:51,263 INFO L857 garLoopResultBuilder]: For program point L362-2(lines 362 379) no Hoare annotation was computed. [2021-10-29 04:51:51,263 INFO L853 garLoopResultBuilder]: At program point L362-3(lines 1 996) the Hoare annotation is: false [2021-10-29 04:51:51,263 INFO L857 garLoopResultBuilder]: For program point L362-4(lines 362 379) no Hoare annotation was computed. [2021-10-29 04:51:51,263 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 214) no Hoare annotation was computed. [2021-10-29 04:51:51,263 INFO L853 garLoopResultBuilder]: At program point L362-5(lines 1 996) the Hoare annotation is: false [2021-10-29 04:51:51,264 INFO L857 garLoopResultBuilder]: For program point L197-1(lines 197 214) no Hoare annotation was computed. [2021-10-29 04:51:51,264 INFO L857 garLoopResultBuilder]: For program point L197-2(lines 197 214) no Hoare annotation was computed. [2021-10-29 04:51:51,264 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 04:51:51,264 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2021-10-29 04:51:51,264 INFO L857 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2021-10-29 04:51:51,265 INFO L857 garLoopResultBuilder]: For program point L627-1(line 627) no Hoare annotation was computed. [2021-10-29 04:51:51,265 INFO L857 garLoopResultBuilder]: For program point L627-2(line 627) no Hoare annotation was computed. [2021-10-29 04:51:51,265 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2021-10-29 04:51:51,265 INFO L857 garLoopResultBuilder]: For program point L429-3(lines 429 433) no Hoare annotation was computed. [2021-10-29 04:51:51,265 INFO L857 garLoopResultBuilder]: For program point L429-6(lines 429 433) no Hoare annotation was computed. [2021-10-29 04:51:51,266 INFO L857 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2021-10-29 04:51:51,266 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2021-10-29 04:51:51,266 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 338) no Hoare annotation was computed. [2021-10-29 04:51:51,266 INFO L853 garLoopResultBuilder]: At program point L332-1(lines 332 338) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1) (and .cse0 (= ~waterLevel~0 (_ bv1 32)) .cse1))) [2021-10-29 04:51:51,266 INFO L857 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,267 INFO L857 garLoopResultBuilder]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,267 INFO L857 garLoopResultBuilder]: For program point L299-3(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,267 INFO L857 garLoopResultBuilder]: For program point L299-5(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,267 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 107) no Hoare annotation was computed. [2021-10-29 04:51:51,267 INFO L857 garLoopResultBuilder]: For program point L299-6(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,268 INFO L853 garLoopResultBuilder]: At program point L101-1(lines 139 145) the Hoare annotation is: (let ((.cse6 (= ~systemActive~0 (_ bv0 32)))) (let ((.cse2 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse3 .cse4) (and .cse0 .cse1 .cse6 .cse4) (and .cse0 .cse6 .cse5 .cse4) (and .cse0 (= (_ bv1 32) ~pumpRunning~0) .cse1 .cse3)))) [2021-10-29 04:51:51,268 INFO L857 garLoopResultBuilder]: For program point L299-8(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,268 INFO L857 garLoopResultBuilder]: For program point L299-9(lines 299 303) no Hoare annotation was computed. [2021-10-29 04:51:51,272 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:51:51,274 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:51:51,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:51:51 BoogieIcfgContainer [2021-10-29 04:51:51,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:51:51,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:51:51,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:51:51,327 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:51:51,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:07" (3/4) ... [2021-10-29 04:51:51,348 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:51:51,379 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-29 04:51:51,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-29 04:51:51,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 04:51:51,390 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 04:51:51,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 04:51:51,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:51:51,394 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:51:51,435 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32))) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) [2021-10-29 04:51:51,436 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && waterLevel == 1bv32) && !(systemActive == 0bv32) [2021-10-29 04:51:51,437 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && waterLevel == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-29 04:51:51,437 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && 0bv32 == pumpRunning) [2021-10-29 04:51:51,438 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32 [2021-10-29 04:51:51,438 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp___0 == 0bv32) && \result == 0bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && \result == 0bv32) && waterLevel == 1bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-29 04:51:51,493 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:51:51,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:51:51,495 INFO L168 Benchmark]: Toolchain (without parser) took 48059.23 ms. Allocated memory was 54.5 MB in the beginning and 144.7 MB in the end (delta: 90.2 MB). Free memory was 30.1 MB in the beginning and 73.0 MB in the end (delta: -42.9 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,496 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:51:51,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.10 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.0 MB in the beginning and 47.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.03 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 43.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,497 INFO L168 Benchmark]: Boogie Preprocessor took 115.01 ms. Allocated memory is still 67.1 MB. Free memory was 43.6 MB in the beginning and 41.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,498 INFO L168 Benchmark]: RCFGBuilder took 2898.49 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 41.0 MB in the beginning and 51.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,498 INFO L168 Benchmark]: TraceAbstraction took 43914.68 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 50.8 MB in the beginning and 83.5 MB in the end (delta: -32.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,498 INFO L168 Benchmark]: Witness Printer took 167.39 ms. Allocated memory is still 144.7 MB. Free memory was 83.5 MB in the beginning and 73.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:51:51,501 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 816.10 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.0 MB in the beginning and 47.4 MB in the end (delta: -17.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.03 ms. Allocated memory is still 67.1 MB. Free memory was 47.4 MB in the beginning and 43.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.01 ms. Allocated memory is still 67.1 MB. Free memory was 43.6 MB in the beginning and 41.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2898.49 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 41.0 MB in the beginning and 51.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 43914.68 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 50.8 MB in the beginning and 83.5 MB in the end (delta: -32.6 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. * Witness Printer took 167.39 ms. Allocated memory is still 144.7 MB. Free memory was 83.5 MB in the beginning and 73.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 627]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 627]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 627]: 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, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 43.7s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1473 SDtfs, 2237 SDslu, 3054 SDs, 0 SdLazy, 421 SolverSat, 85 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1253 GetRequests, 1191 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175occurred in iteration=11, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 14 MinimizatonAttempts, 4215 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 150 NumberOfFragments, 718 HoareAnnotationTreeSize, 45 FomulaSimplifications, 1262677 FormulaSimplificationTreeSizeReduction, 4.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 675083 FormulaSimplificationTreeSizeReductionInter, 12.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 626 NumberOfCodeBlocks, 626 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1220 ConstructedInterpolants, 0 QuantifiedInterpolants, 2447 SizeOfPredicates, 27 NumberOfNonLiveVariables, 3552 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 32 InterpolantComputations, 26 PerfectInterpolantSequences, 196/232 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: 346]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 332]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 412]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 609]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32))) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && systemActive == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == \result) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == \result) && 0bv32 == pumpRunning) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: 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: 290]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp___0 == 0bv32) && \result == 0bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && \result == 0bv32) && waterLevel == 1bv32) && !(tmp == 0bv32)) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && \result == 0bv32) && waterLevel == 1bv32) && !(systemActive == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32))) || (((((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && 1bv32 == pumpRunning) && waterLevel == 1bv32) && !(systemActive == 0bv32))) || (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methAndRunningLastTime == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && waterLevel == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) RESULT: Ultimate proved your program to be correct! [2021-10-29 04:51:51,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94a0270b-077d-4103-89c7-8366ccb2bb7f/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...