./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.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_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/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_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/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_aa8ff435-a436-4354-8d64-a61cfc6da356/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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b ............................................................................................................................................ 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_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/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_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/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_aa8ff435-a436-4354-8d64-a61cfc6da356/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 e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:00:43,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:43,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:43,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:43,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:43,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:43,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:43,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:43,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:43,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:43,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:43,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:43,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:43,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:43,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:43,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:43,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:43,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:43,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:43,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:43,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:43,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:43,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:43,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:43,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:43,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:43,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:43,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:43,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:43,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:43,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:43,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:43,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:43,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:43,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:43,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:43,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:43,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:43,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:43,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:43,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:43,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:00:43,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:43,641 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:43,643 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:43,643 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:43,644 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:43,644 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:43,644 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:00:43,644 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:43,645 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:43,645 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:00:43,652 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:00:43,652 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:43,653 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:00:43,653 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:00:43,653 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:00:43,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:43,655 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:43,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:00:43,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:43,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:43,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:43,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:43,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:43,656 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:43,657 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:43,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:43,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:43,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:43,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:43,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:43,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:43,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:43,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:43,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:43,659 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:00:43,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:00:43,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:43,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:43,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:43,660 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_aa8ff435-a436-4354-8d64-a61cfc6da356/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2021-10-29 05:00:43,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:43,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:43,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:43,928 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:43,929 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:43,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-10-29 05:00:43,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/f87adbd83/eca15dc0309e4f399cb61c11dce9b7c6/FLAG50fbcde84 [2021-10-29 05:00:44,531 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:00:44,532 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-10-29 05:00:44,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/f87adbd83/eca15dc0309e4f399cb61c11dce9b7c6/FLAG50fbcde84 [2021-10-29 05:00:44,994 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/f87adbd83/eca15dc0309e4f399cb61c11dce9b7c6 [2021-10-29 05:00:44,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:00:44,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:00:45,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:45,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:00:45,007 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:00:45,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:44" (1/1) ... [2021-10-29 05:00:45,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47950c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:45, skipping insertion in model container [2021-10-29 05:00:45,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:44" (1/1) ... [2021-10-29 05:00:45,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:00:45,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:45,224 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_aa8ff435-a436-4354-8d64-a61cfc6da356/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-10-29 05:00:45,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:45,353 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 05:00:45,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73b6bbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:45, skipping insertion in model container [2021-10-29 05:00:45,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:45,355 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:00:45,357 INFO L168 Benchmark]: Toolchain (without parser) took 357.19 ms. Allocated memory is still 115.3 MB. Free memory was 83.6 MB in the beginning and 86.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:45,358 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 115.3 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:00:45,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.20 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 86.1 MB in the end (delta: -2.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:00:45,360 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 115.3 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 351.20 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 86.1 MB in the end (delta: -2.7 MB). 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: 565]: 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 05:00:47,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:00:47,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:00:47,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:00:47,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:00:47,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:00:47,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:00:47,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:00:47,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:00:47,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:00:47,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:00:47,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:00:47,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:00:47,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:00:47,609 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:00:47,610 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:00:47,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:00:47,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:00:47,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:00:47,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:00:47,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:00:47,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:00:47,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:00:47,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:00:47,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:00:47,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:00:47,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:00:47,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:00:47,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:00:47,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:00:47,638 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:00:47,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:00:47,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:00:47,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:00:47,643 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:00:47,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:00:47,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:00:47,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:00:47,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:00:47,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:00:47,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:00:47,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:00:47,693 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:00:47,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:00:47,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:00:47,695 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:00:47,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:00:47,695 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:00:47,695 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:00:47,696 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:00:47,696 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:00:47,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:00:47,698 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:00:47,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:00:47,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:00:47,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:00:47,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:00:47,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:00:47,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:00:47,700 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:00:47,700 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:00:47,701 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:00:47,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:00:47,701 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:00:47,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:00:47,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:00:47,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:00:47,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:00:47,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:47,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:00:47,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:00:47,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:00:47,703 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:00:47,703 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:00:47,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:00:47,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:00:47,704 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:00:47,705 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_aa8ff435-a436-4354-8d64-a61cfc6da356/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1c4d106eb612b91999bdca4bb49f57df1223b70f35ecd881d6daa6062cb1b0b [2021-10-29 05:00:48,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:00:48,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:00:48,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:00:48,085 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:00:48,086 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:00:48,087 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-10-29 05:00:48,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/cdb94077b/e9cb08b62c0947eb99a81cd407b48de7/FLAG07bda02c6 [2021-10-29 05:00:48,817 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:00:48,818 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c [2021-10-29 05:00:48,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/cdb94077b/e9cb08b62c0947eb99a81cd407b48de7/FLAG07bda02c6 [2021-10-29 05:00:49,100 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/data/cdb94077b/e9cb08b62c0947eb99a81cd407b48de7 [2021-10-29 05:00:49,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:00:49,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:00:49,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:49,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:00:49,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:00:49,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1709ce95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49, skipping insertion in model container [2021-10-29 05:00:49,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:00:49,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:49,359 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_aa8ff435-a436-4354-8d64-a61cfc6da356/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-10-29 05:00:49,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:49,585 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:00:49,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:00:49,616 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_aa8ff435-a436-4354-8d64-a61cfc6da356/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-10-29 05:00:49,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:49,748 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:00:49,760 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_aa8ff435-a436-4354-8d64-a61cfc6da356/sv-benchmarks/c/product-lines/minepump_spec3_product53.cil.c[1605,1618] [2021-10-29 05:00:49,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:00:49,822 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:00:49,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49 WrapperNode [2021-10-29 05:00:49,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:00:49,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:49,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:00:49,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:00:49,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,850 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:00:49,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:00:49,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:00:49,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:00:49,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:49,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:50,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:50,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:50,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:00:50,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:00:50,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:00:50,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:00:50,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (1/1) ... [2021-10-29 05:00:50,044 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:00:50,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:00:50,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:00:50,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:00:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:00:50,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:00:50,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:00:50,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:00:52,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:00:52,459 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2021-10-29 05:00:52,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:52 BoogieIcfgContainer [2021-10-29 05:00:52,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:00:52,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:00:52,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:00:52,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:00:52,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:00:49" (1/3) ... [2021-10-29 05:00:52,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d97ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:52, skipping insertion in model container [2021-10-29 05:00:52,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:00:49" (2/3) ... [2021-10-29 05:00:52,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d97ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:00:52, skipping insertion in model container [2021-10-29 05:00:52,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:52" (3/3) ... [2021-10-29 05:00:52,469 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product53.cil.c [2021-10-29 05:00:52,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:00:52,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 05:00:52,539 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:00:52,547 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 05:00:52,548 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:00:52,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 191 states have (on average 1.5549738219895288) internal successors, (297), 194 states have internal predecessors, (297), 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 05:00:52,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:00:52,589 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:52,589 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 05:00:52,590 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 05:00:52,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:52,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1201783907, now seen corresponding path program 1 times [2021-10-29 05:00:52,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:52,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922179585] [2021-10-29 05:00:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:52,612 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:52,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:52,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:52,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:00:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:52,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:00:52,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:52,924 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 05:00:52,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:52,976 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 05:00:52,977 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:52,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922179585] [2021-10-29 05:00:52,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922179585] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:52,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:52,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:00:52,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548834873] [2021-10-29 05:00:52,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:00:52,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:52,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:00:52,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:00:53,001 INFO L87 Difference]: Start difference. First operand has 195 states, 191 states have (on average 1.5549738219895288) internal successors, (297), 194 states have internal predecessors, (297), 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 05:00:53,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:53,041 INFO L93 Difference]: Finished difference Result 384 states and 587 transitions. [2021-10-29 05:00:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:00:53,043 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 05:00:53,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:53,054 INFO L225 Difference]: With dead ends: 384 [2021-10-29 05:00:53,071 INFO L226 Difference]: Without dead ends: 191 [2021-10-29 05:00:53,075 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 05:00:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-10-29 05:00:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2021-10-29 05:00:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 188 states have (on average 1.5159574468085106) internal successors, (285), 190 states have internal predecessors, (285), 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 05:00:53,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 285 transitions. [2021-10-29 05:00:53,184 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 285 transitions. Word has length 18 [2021-10-29 05:00:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:53,184 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 285 transitions. [2021-10-29 05:00:53,185 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 05:00:53,185 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 285 transitions. [2021-10-29 05:00:53,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:00:53,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:53,187 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:00:53,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:53,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:53,400 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 05:00:53,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:53,401 INFO L85 PathProgramCache]: Analyzing trace with hash 290753154, now seen corresponding path program 1 times [2021-10-29 05:00:53,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:53,401 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927263097] [2021-10-29 05:00:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:53,402 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:53,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:53,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:53,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:00:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:53,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:53,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:53,697 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 05:00:53,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:53,768 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 05:00:53,769 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:53,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927263097] [2021-10-29 05:00:53,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927263097] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:53,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:53,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:00:53,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089756966] [2021-10-29 05:00:53,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:00:53,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:53,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:00:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:53,777 INFO L87 Difference]: Start difference. First operand 191 states and 285 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 05:00:53,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:53,814 INFO L93 Difference]: Finished difference Result 191 states and 285 transitions. [2021-10-29 05:00:53,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:53,820 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 05:00:53,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:53,821 INFO L225 Difference]: With dead ends: 191 [2021-10-29 05:00:53,824 INFO L226 Difference]: Without dead ends: 73 [2021-10-29 05:00:53,826 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 05:00:53,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-29 05:00:53,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-29 05:00:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.5) internal successors, (108), 72 states have internal predecessors, (108), 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 05:00:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2021-10-29 05:00:53,839 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 19 [2021-10-29 05:00:53,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:53,839 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2021-10-29 05:00:53,840 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 05:00:53,840 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2021-10-29 05:00:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:00:53,842 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:53,846 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 05:00:53,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:54,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:54,058 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 05:00:54,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:54,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2129855336, now seen corresponding path program 1 times [2021-10-29 05:00:54,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:54,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1814047452] [2021-10-29 05:00:54,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:54,060 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:54,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:54,067 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:54,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:00:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:54,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:54,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:54,382 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 05:00:54,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:54,468 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 05:00:54,468 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:54,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1814047452] [2021-10-29 05:00:54,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1814047452] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:54,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:54,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:00:54,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145238499] [2021-10-29 05:00:54,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:00:54,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:54,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:00:54,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:54,471 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 05:00:54,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:54,481 INFO L93 Difference]: Finished difference Result 140 states and 210 transitions. [2021-10-29 05:00:54,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:54,482 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 05:00:54,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:54,483 INFO L225 Difference]: With dead ends: 140 [2021-10-29 05:00:54,483 INFO L226 Difference]: Without dead ends: 73 [2021-10-29 05:00:54,484 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 05:00:54,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-29 05:00:54,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-29 05:00:54,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.4861111111111112) internal successors, (107), 72 states have internal predecessors, (107), 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 05:00:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 107 transitions. [2021-10-29 05:00:54,491 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 107 transitions. Word has length 24 [2021-10-29 05:00:54,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:54,492 INFO L470 AbstractCegarLoop]: Abstraction has 73 states and 107 transitions. [2021-10-29 05:00:54,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 05:00:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 107 transitions. [2021-10-29 05:00:54,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:00:54,493 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:54,494 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 05:00:54,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:54,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:54,705 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 05:00:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:54,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1287566232, now seen corresponding path program 1 times [2021-10-29 05:00:54,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:54,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785265774] [2021-10-29 05:00:54,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:54,707 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:54,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:54,708 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:54,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:00:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:54,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:00:54,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:54,985 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 05:00:54,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:55,050 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 05:00:55,050 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:55,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785265774] [2021-10-29 05:00:55,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785265774] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:55,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:55,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:00:55,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100400991] [2021-10-29 05:00:55,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:00:55,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:55,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:00:55,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:00:55,053 INFO L87 Difference]: Start difference. First operand 73 states and 107 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 05:00:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:55,121 INFO L93 Difference]: Finished difference Result 151 states and 223 transitions. [2021-10-29 05:00:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:00:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 05:00:55,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:55,123 INFO L225 Difference]: With dead ends: 151 [2021-10-29 05:00:55,123 INFO L226 Difference]: Without dead ends: 84 [2021-10-29 05:00:55,124 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 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 05:00:55,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-29 05:00:55,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2021-10-29 05:00:55,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 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 05:00:55,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2021-10-29 05:00:55,133 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 27 [2021-10-29 05:00:55,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:55,133 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2021-10-29 05:00:55,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 05:00:55,134 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2021-10-29 05:00:55,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:00:55,135 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:55,135 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 05:00:55,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:55,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:55,336 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 05:00:55,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:55,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1887369033, now seen corresponding path program 1 times [2021-10-29 05:00:55,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:55,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286117824] [2021-10-29 05:00:55,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:55,344 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:55,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:55,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:55,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:00:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:55,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:00:55,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:55,711 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 05:00:55,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:55,787 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 05:00:55,787 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:55,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286117824] [2021-10-29 05:00:55,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286117824] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:55,791 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:55,791 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:00:55,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677793884] [2021-10-29 05:00:55,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:00:55,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:55,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:00:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:00:55,795 INFO L87 Difference]: Start difference. First operand 82 states and 116 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 05:00:55,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:55,906 INFO L93 Difference]: Finished difference Result 216 states and 303 transitions. [2021-10-29 05:00:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:00:55,907 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 05:00:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:55,910 INFO L225 Difference]: With dead ends: 216 [2021-10-29 05:00:55,910 INFO L226 Difference]: Without dead ends: 140 [2021-10-29 05:00:55,911 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 05:00:55,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-29 05:00:55,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 91. [2021-10-29 05:00:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.3888888888888888) internal successors, (125), 90 states have internal predecessors, (125), 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 05:00:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2021-10-29 05:00:55,935 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 33 [2021-10-29 05:00:55,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:55,936 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2021-10-29 05:00:55,936 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 05:00:55,936 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2021-10-29 05:00:55,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:00:55,939 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:55,939 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 05:00:55,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:56,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:56,157 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 05:00:56,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:56,157 INFO L85 PathProgramCache]: Analyzing trace with hash 759972940, now seen corresponding path program 1 times [2021-10-29 05:00:56,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:56,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485939809] [2021-10-29 05:00:56,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:56,158 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:56,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:56,161 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:56,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:00:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:56,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:00:56,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:56,518 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 05:00:56,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:56,670 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 05:00:56,671 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:56,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485939809] [2021-10-29 05:00:56,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485939809] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:56,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:56,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 05:00:56,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349143451] [2021-10-29 05:00:56,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:00:56,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:56,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:00:56,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:00:56,673 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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 05:00:57,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:57,115 INFO L93 Difference]: Finished difference Result 1039 states and 1459 transitions. [2021-10-29 05:00:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 05:00:57,116 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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 05:00:57,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:57,122 INFO L225 Difference]: With dead ends: 1039 [2021-10-29 05:00:57,122 INFO L226 Difference]: Without dead ends: 954 [2021-10-29 05:00:57,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-29 05:00:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2021-10-29 05:00:57,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 217. [2021-10-29 05:00:57,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3703703703703705) internal successors, (296), 216 states have internal predecessors, (296), 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 05:00:57,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 296 transitions. [2021-10-29 05:00:57,157 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 296 transitions. Word has length 33 [2021-10-29 05:00:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:57,157 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 296 transitions. [2021-10-29 05:00:57,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 7 states have internal predecessors, (63), 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 05:00:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 296 transitions. [2021-10-29 05:00:57,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:00:57,159 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:57,159 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 05:00:57,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:57,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:57,372 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 05:00:57,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:57,372 INFO L85 PathProgramCache]: Analyzing trace with hash 906151628, now seen corresponding path program 1 times [2021-10-29 05:00:57,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:57,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118309475] [2021-10-29 05:00:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:57,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:57,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:57,375 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:57,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:00:57,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:57,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:00:57,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:57,710 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 05:00:57,710 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:57,777 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 05:00:57,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:57,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118309475] [2021-10-29 05:00:57,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118309475] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:57,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:57,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:00:57,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651649536] [2021-10-29 05:00:57,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:00:57,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:57,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:00:57,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:00:57,781 INFO L87 Difference]: Start difference. First operand 217 states and 296 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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 05:00:57,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:00:57,864 INFO L93 Difference]: Finished difference Result 548 states and 760 transitions. [2021-10-29 05:00:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:00:57,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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 05:00:57,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:00:57,869 INFO L225 Difference]: With dead ends: 548 [2021-10-29 05:00:57,869 INFO L226 Difference]: Without dead ends: 385 [2021-10-29 05:00:57,871 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:00:57,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-29 05:00:57,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 214. [2021-10-29 05:00:57,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 1.3615023474178405) internal successors, (290), 213 states have internal predecessors, (290), 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 05:00:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 290 transitions. [2021-10-29 05:00:57,901 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 290 transitions. Word has length 34 [2021-10-29 05:00:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:00:57,902 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 290 transitions. [2021-10-29 05:00:57,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 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 05:00:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 290 transitions. [2021-10-29 05:00:57,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:00:57,907 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:00:57,908 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 05:00:57,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:00:58,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:00:58,122 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 05:00:58,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:00:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash -2003254137, now seen corresponding path program 1 times [2021-10-29 05:00:58,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:00:58,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1933685709] [2021-10-29 05:00:58,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:00:58,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:00:58,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:00:58,125 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:00:58,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:00:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:00:58,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:00:58,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:00:58,455 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 05:00:58,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:00:58,550 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 05:00:58,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:00:58,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1933685709] [2021-10-29 05:00:58,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1933685709] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:00:58,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:00:58,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:00:58,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798395569] [2021-10-29 05:00:58,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:00:58,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:00:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:00:58,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:00:58,552 INFO L87 Difference]: Start difference. First operand 214 states and 290 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 05:01:01,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:01,042 INFO L93 Difference]: Finished difference Result 579 states and 801 transitions. [2021-10-29 05:01:01,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:01:01,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 05:01:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:01,045 INFO L225 Difference]: With dead ends: 579 [2021-10-29 05:01:01,046 INFO L226 Difference]: Without dead ends: 371 [2021-10-29 05:01:01,046 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:01:01,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-10-29 05:01:01,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 166. [2021-10-29 05:01:01,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.309090909090909) internal successors, (216), 165 states have internal predecessors, (216), 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 05:01:01,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 216 transitions. [2021-10-29 05:01:01,069 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 216 transitions. Word has length 34 [2021-10-29 05:01:01,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:01,069 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 216 transitions. [2021-10-29 05:01:01,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 05:01:01,070 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 216 transitions. [2021-10-29 05:01:01,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:01:01,070 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:01,070 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 05:01:01,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:01,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:01,284 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 05:01:01,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:01,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1164317066, now seen corresponding path program 1 times [2021-10-29 05:01:01,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:01,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841865970] [2021-10-29 05:01:01,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:01,286 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:01,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:01,287 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:01,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:01:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:01,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:01:01,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:01,674 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 05:01:01,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:01,764 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 05:01:01,765 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:01,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841865970] [2021-10-29 05:01:01,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841865970] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:01,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:01,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:01:01,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475499300] [2021-10-29 05:01:01,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:01:01,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:01,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:01:01,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:01:01,767 INFO L87 Difference]: Start difference. First operand 166 states and 216 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 05:01:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:01,844 INFO L93 Difference]: Finished difference Result 449 states and 591 transitions. [2021-10-29 05:01:01,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:01:01,845 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 05:01:01,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:01,848 INFO L225 Difference]: With dead ends: 449 [2021-10-29 05:01:01,848 INFO L226 Difference]: Without dead ends: 289 [2021-10-29 05:01:01,849 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 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 05:01:01,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-10-29 05:01:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 166. [2021-10-29 05:01:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.290909090909091) internal successors, (213), 165 states have internal predecessors, (213), 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 05:01:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 213 transitions. [2021-10-29 05:01:01,871 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 213 transitions. Word has length 34 [2021-10-29 05:01:01,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:01,871 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 213 transitions. [2021-10-29 05:01:01,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 05:01:01,871 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 213 transitions. [2021-10-29 05:01:01,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-29 05:01:01,872 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:01,873 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-10-29 05:01:01,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:02,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:02,085 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 05:01:02,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:02,085 INFO L85 PathProgramCache]: Analyzing trace with hash -174764895, now seen corresponding path program 1 times [2021-10-29 05:01:02,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:02,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039201913] [2021-10-29 05:01:02,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:02,086 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:02,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:02,087 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:02,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:01:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:02,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:01:02,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 05:01:02,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 05:01:02,742 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:02,742 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039201913] [2021-10-29 05:01:02,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2039201913] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:02,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:02,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 05:01:02,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510674581] [2021-10-29 05:01:02,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:01:02,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:02,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:01:02,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:01:02,744 INFO L87 Difference]: Start difference. First operand 166 states and 213 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:05,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:05,315 INFO L93 Difference]: Finished difference Result 555 states and 736 transitions. [2021-10-29 05:01:05,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:01:05,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-29 05:01:05,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:05,319 INFO L225 Difference]: With dead ends: 555 [2021-10-29 05:01:05,319 INFO L226 Difference]: Without dead ends: 443 [2021-10-29 05:01:05,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 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 05:01:05,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2021-10-29 05:01:05,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 375. [2021-10-29 05:01:05,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 374 states have (on average 1.3021390374331552) internal successors, (487), 374 states have internal predecessors, (487), 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 05:01:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 487 transitions. [2021-10-29 05:01:05,374 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 487 transitions. Word has length 52 [2021-10-29 05:01:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:05,374 INFO L470 AbstractCegarLoop]: Abstraction has 375 states and 487 transitions. [2021-10-29 05:01:05,375 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 487 transitions. [2021-10-29 05:01:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-29 05:01:05,376 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:05,376 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-10-29 05:01:05,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:05,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:05,589 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 05:01:05,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:05,589 INFO L85 PathProgramCache]: Analyzing trace with hash 99994719, now seen corresponding path program 1 times [2021-10-29 05:01:05,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:05,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177593059] [2021-10-29 05:01:05,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:05,590 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:05,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:05,590 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:05,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:01:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:05,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:01:05,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:06,093 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:06,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:06,247 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:06,247 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:06,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177593059] [2021-10-29 05:01:06,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177593059] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:06,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:06,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:01:06,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520174148] [2021-10-29 05:01:06,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:01:06,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:06,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:01:06,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:01:06,249 INFO L87 Difference]: Start difference. First operand 375 states and 487 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:06,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:06,548 INFO L93 Difference]: Finished difference Result 1922 states and 2461 transitions. [2021-10-29 05:01:06,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:01:06,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-10-29 05:01:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:06,558 INFO L225 Difference]: With dead ends: 1922 [2021-10-29 05:01:06,558 INFO L226 Difference]: Without dead ends: 1553 [2021-10-29 05:01:06,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 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 05:01:06,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2021-10-29 05:01:06,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 742. [2021-10-29 05:01:06,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 741 states have (on average 1.2672064777327936) internal successors, (939), 741 states have internal predecessors, (939), 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 05:01:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 939 transitions. [2021-10-29 05:01:06,674 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 939 transitions. Word has length 52 [2021-10-29 05:01:06,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:06,674 INFO L470 AbstractCegarLoop]: Abstraction has 742 states and 939 transitions. [2021-10-29 05:01:06,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 939 transitions. [2021-10-29 05:01:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-29 05:01:06,675 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:06,676 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:06,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:06,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:06,889 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 05:01:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:06,889 INFO L85 PathProgramCache]: Analyzing trace with hash -42529499, now seen corresponding path program 1 times [2021-10-29 05:01:06,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:06,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1869967130] [2021-10-29 05:01:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:06,890 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:06,891 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:06,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 05:01:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:07,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:01:07,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:07,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:07,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:07,586 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:07,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1869967130] [2021-10-29 05:01:07,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1869967130] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:07,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [177173048] [2021-10-29 05:01:07,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:07,587 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:07,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:01:07,595 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:01:07,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-29 05:01:08,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:08,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:01:08,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:08,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:08,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [177173048] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:08,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941906590] [2021-10-29 05:01:08,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:08,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:01:08,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:01:08,335 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:01:08,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-29 05:01:08,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:08,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:01:08,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:08,908 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:08,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:09,072 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:09,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941906590] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:09,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:01:09,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-29 05:01:09,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660450157] [2021-10-29 05:01:09,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:01:09,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:01:09,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:01:09,074 INFO L87 Difference]: Start difference. First operand 742 states and 939 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 05:01:11,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:11,983 INFO L93 Difference]: Finished difference Result 1834 states and 2307 transitions. [2021-10-29 05:01:11,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:01:11,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 53 [2021-10-29 05:01:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:11,991 INFO L225 Difference]: With dead ends: 1834 [2021-10-29 05:01:11,992 INFO L226 Difference]: Without dead ends: 1098 [2021-10-29 05:01:11,993 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:01:11,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2021-10-29 05:01:12,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 658. [2021-10-29 05:01:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 657 states have (on average 1.234398782343988) internal successors, (811), 657 states have internal predecessors, (811), 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 05:01:12,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 811 transitions. [2021-10-29 05:01:12,096 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 811 transitions. Word has length 53 [2021-10-29 05:01:12,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:12,098 INFO L470 AbstractCegarLoop]: Abstraction has 658 states and 811 transitions. [2021-10-29 05:01:12,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 05:01:12,098 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 811 transitions. [2021-10-29 05:01:12,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 05:01:12,099 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:12,100 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] [2021-10-29 05:01:12,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:12,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:12,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:12,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:12,716 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 05:01:12,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:12,716 INFO L85 PathProgramCache]: Analyzing trace with hash 280626892, now seen corresponding path program 1 times [2021-10-29 05:01:12,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:12,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594963402] [2021-10-29 05:01:12,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:12,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:12,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:12,718 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:12,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-29 05:01:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:13,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:01:13,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:13,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:13,470 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:01:13,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:13,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594963402] [2021-10-29 05:01:13,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1594963402] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:13,471 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:13,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:01:13,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117626095] [2021-10-29 05:01:13,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:01:13,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:13,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:01:13,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:01:13,473 INFO L87 Difference]: Start difference. First operand 658 states and 811 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 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 05:01:15,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:15,065 INFO L93 Difference]: Finished difference Result 2567 states and 3159 transitions. [2021-10-29 05:01:15,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:01:15,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 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 54 [2021-10-29 05:01:15,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:15,075 INFO L225 Difference]: With dead ends: 2567 [2021-10-29 05:01:15,076 INFO L226 Difference]: Without dead ends: 2003 [2021-10-29 05:01:15,077 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:01:15,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-10-29 05:01:15,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 842. [2021-10-29 05:01:15,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.224732461355529) internal successors, (1030), 841 states have internal predecessors, (1030), 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 05:01:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1030 transitions. [2021-10-29 05:01:15,217 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1030 transitions. Word has length 54 [2021-10-29 05:01:15,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:15,218 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1030 transitions. [2021-10-29 05:01:15,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 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 05:01:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1030 transitions. [2021-10-29 05:01:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 05:01:15,219 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:15,219 INFO L513 BasicCegarLoop]: trace histogram [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 05:01:15,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:15,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:15,432 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 05:01:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:15,433 INFO L85 PathProgramCache]: Analyzing trace with hash 103606007, now seen corresponding path program 1 times [2021-10-29 05:01:15,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:15,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527221159] [2021-10-29 05:01:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:15,433 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:15,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:15,434 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:15,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-29 05:01:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:15,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:15,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:16,026 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-29 05:01:16,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:16,126 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-29 05:01:16,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:16,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527221159] [2021-10-29 05:01:16,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1527221159] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:16,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:16,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-10-29 05:01:16,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128858812] [2021-10-29 05:01:16,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:01:16,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:16,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:01:16,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:01:16,128 INFO L87 Difference]: Start difference. First operand 842 states and 1030 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 05:01:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:16,575 INFO L93 Difference]: Finished difference Result 3214 states and 3960 transitions. [2021-10-29 05:01:16,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:01:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 54 [2021-10-29 05:01:16,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:16,588 INFO L225 Difference]: With dead ends: 3214 [2021-10-29 05:01:16,589 INFO L226 Difference]: Without dead ends: 2466 [2021-10-29 05:01:16,590 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:01:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2466 states. [2021-10-29 05:01:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2466 to 842. [2021-10-29 05:01:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.2187871581450653) internal successors, (1025), 841 states have internal predecessors, (1025), 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 05:01:16,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1025 transitions. [2021-10-29 05:01:16,741 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1025 transitions. Word has length 54 [2021-10-29 05:01:16,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:16,741 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1025 transitions. [2021-10-29 05:01:16,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 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 05:01:16,742 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1025 transitions. [2021-10-29 05:01:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-29 05:01:16,743 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:16,743 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:16,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:16,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:16,957 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1991996669, now seen corresponding path program 1 times [2021-10-29 05:01:16,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:16,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108321361] [2021-10-29 05:01:16,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:16,958 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:16,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:16,959 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:16,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 05:01:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:17,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:17,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:17,633 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:17,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:17,861 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:17,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108321361] [2021-10-29 05:01:17,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108321361] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:17,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [839797618] [2021-10-29 05:01:17,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:17,862 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:17,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:01:17,863 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:01:17,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-29 05:01:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:18,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:01:18,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:18,572 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 05:01:18,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 05:01:18,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [839797618] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:18,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:01:18,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-10-29 05:01:18,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197149661] [2021-10-29 05:01:18,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:01:18,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:18,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:01:18,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:01:18,718 INFO L87 Difference]: Start difference. First operand 842 states and 1025 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:19,153 INFO L93 Difference]: Finished difference Result 2947 states and 3625 transitions. [2021-10-29 05:01:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:01:19,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-29 05:01:19,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:19,166 INFO L225 Difference]: With dead ends: 2947 [2021-10-29 05:01:19,167 INFO L226 Difference]: Without dead ends: 2199 [2021-10-29 05:01:19,171 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:01:19,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2021-10-29 05:01:19,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 869. [2021-10-29 05:01:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.2119815668202765) internal successors, (1052), 868 states have internal predecessors, (1052), 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 05:01:19,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1052 transitions. [2021-10-29 05:01:19,358 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1052 transitions. Word has length 60 [2021-10-29 05:01:19,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:19,358 INFO L470 AbstractCegarLoop]: Abstraction has 869 states and 1052 transitions. [2021-10-29 05:01:19,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:19,358 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1052 transitions. [2021-10-29 05:01:19,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-29 05:01:19,359 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:19,360 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:19,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:19,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:19,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:19,775 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:19,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:19,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1733831231, now seen corresponding path program 1 times [2021-10-29 05:01:19,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:19,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218573781] [2021-10-29 05:01:19,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:19,776 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:19,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:19,777 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:19,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-29 05:01:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:20,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:20,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:20,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:20,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:20,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218573781] [2021-10-29 05:01:20,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218573781] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:20,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [131625117] [2021-10-29 05:01:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:20,592 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:20,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:01:20,601 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:01:20,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-10-29 05:01:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:21,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:21,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:21,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:21,547 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:21,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [131625117] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:21,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310188987] [2021-10-29 05:01:21,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:21,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:01:21,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:01:21,548 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:01:21,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-29 05:01:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:22,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:22,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:22,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:22,481 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:01:22,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310188987] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:22,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:01:22,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-29 05:01:22,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153393920] [2021-10-29 05:01:22,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:01:22,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:22,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:01:22,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:01:22,483 INFO L87 Difference]: Start difference. First operand 869 states and 1052 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 05:01:25,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:25,136 INFO L93 Difference]: Finished difference Result 5628 states and 6888 transitions. [2021-10-29 05:01:25,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-29 05:01:25,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 60 [2021-10-29 05:01:25,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:25,163 INFO L225 Difference]: With dead ends: 5628 [2021-10-29 05:01:25,163 INFO L226 Difference]: Without dead ends: 4853 [2021-10-29 05:01:25,166 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2021-10-29 05:01:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2021-10-29 05:01:25,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 1064. [2021-10-29 05:01:25,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 1063 states have (on average 1.2229539040451551) internal successors, (1300), 1063 states have internal predecessors, (1300), 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 05:01:25,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1300 transitions. [2021-10-29 05:01:25,385 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1300 transitions. Word has length 60 [2021-10-29 05:01:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:25,386 INFO L470 AbstractCegarLoop]: Abstraction has 1064 states and 1300 transitions. [2021-10-29 05:01:25,386 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 9 states have internal predecessors, (109), 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 05:01:25,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1300 transitions. [2021-10-29 05:01:25,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-10-29 05:01:25,395 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:25,395 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:25,399 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2021-10-29 05:01:25,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:25,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-29 05:01:25,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:01:25,999 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:25,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1648415651, now seen corresponding path program 1 times [2021-10-29 05:01:25,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:25,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671407707] [2021-10-29 05:01:26,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:26,000 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:26,001 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:26,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-29 05:01:26,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:26,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:01:26,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-29 05:01:26,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-29 05:01:27,024 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:27,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671407707] [2021-10-29 05:01:27,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671407707] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:27,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:27,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:01:27,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910698310] [2021-10-29 05:01:27,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:01:27,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:27,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:01:27,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:01:27,026 INFO L87 Difference]: Start difference. First operand 1064 states and 1300 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 05:01:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:27,212 INFO L93 Difference]: Finished difference Result 2271 states and 2783 transitions. [2021-10-29 05:01:27,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:01:27,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 109 [2021-10-29 05:01:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:27,218 INFO L225 Difference]: With dead ends: 2271 [2021-10-29 05:01:27,218 INFO L226 Difference]: Without dead ends: 1213 [2021-10-29 05:01:27,220 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 213 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 05:01:27,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2021-10-29 05:01:27,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1014. [2021-10-29 05:01:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 1.2201382033563672) internal successors, (1236), 1013 states have internal predecessors, (1236), 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 05:01:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1236 transitions. [2021-10-29 05:01:27,383 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1236 transitions. Word has length 109 [2021-10-29 05:01:27,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:27,383 INFO L470 AbstractCegarLoop]: Abstraction has 1014 states and 1236 transitions. [2021-10-29 05:01:27,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 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 05:01:27,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1236 transitions. [2021-10-29 05:01:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-10-29 05:01:27,387 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:27,387 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-10-29 05:01:27,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:27,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:27,600 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:27,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:27,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1035911456, now seen corresponding path program 1 times [2021-10-29 05:01:27,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:27,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445453245] [2021-10-29 05:01:27,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:27,601 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:27,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:27,602 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:27,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-29 05:01:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:28,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:28,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:28,553 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-10-29 05:01:28,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:28,909 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-10-29 05:01:28,910 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:28,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445453245] [2021-10-29 05:01:28,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445453245] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:28,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:28,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:01:28,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296260325] [2021-10-29 05:01:28,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:01:28,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:28,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:01:28,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:01:28,912 INFO L87 Difference]: Start difference. First operand 1014 states and 1236 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:31,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:31,835 INFO L93 Difference]: Finished difference Result 3063 states and 3718 transitions. [2021-10-29 05:01:31,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-29 05:01:31,835 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-10-29 05:01:31,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:31,844 INFO L225 Difference]: With dead ends: 3063 [2021-10-29 05:01:31,844 INFO L226 Difference]: Without dead ends: 2055 [2021-10-29 05:01:31,846 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-29 05:01:31,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2021-10-29 05:01:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 900. [2021-10-29 05:01:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.2113459399332591) internal successors, (1089), 899 states have internal predecessors, (1089), 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 05:01:32,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1089 transitions. [2021-10-29 05:01:32,020 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1089 transitions. Word has length 135 [2021-10-29 05:01:32,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:32,020 INFO L470 AbstractCegarLoop]: Abstraction has 900 states and 1089 transitions. [2021-10-29 05:01:32,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:01:32,021 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1089 transitions. [2021-10-29 05:01:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-29 05:01:32,024 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:32,024 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:32,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:32,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:32,238 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:32,239 INFO L85 PathProgramCache]: Analyzing trace with hash -996229845, now seen corresponding path program 1 times [2021-10-29 05:01:32,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:32,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [561116353] [2021-10-29 05:01:32,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:32,239 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:32,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:32,240 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:32,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-29 05:01:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:32,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:01:32,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 99 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-29 05:01:33,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 99 proven. 6 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-10-29 05:01:33,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:33,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [561116353] [2021-10-29 05:01:33,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [561116353] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:33,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1725153125] [2021-10-29 05:01:33,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:33,635 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:01:33,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:01:33,636 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:01:33,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2021-10-29 05:01:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:34,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:01:34,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:35,008 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-29 05:01:35,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-29 05:01:35,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1725153125] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:01:35,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669969374] [2021-10-29 05:01:35,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:01:35,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:01:35,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:01:35,489 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:01:35,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-29 05:01:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:01:36,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:01:36,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 159 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-10-29 05:01:36,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-10-29 05:01:37,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669969374] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-29 05:01:37,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-29 05:01:37,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 8, 8, 8] total 24 [2021-10-29 05:01:37,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029002857] [2021-10-29 05:01:37,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:01:37,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:37,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:01:37,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2021-10-29 05:01:37,163 INFO L87 Difference]: Start difference. First operand 900 states and 1089 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 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 05:01:40,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:40,424 INFO L93 Difference]: Finished difference Result 3817 states and 4660 transitions. [2021-10-29 05:01:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-29 05:01:40,428 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 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 141 [2021-10-29 05:01:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:40,441 INFO L225 Difference]: With dead ends: 3817 [2021-10-29 05:01:40,441 INFO L226 Difference]: Without dead ends: 2923 [2021-10-29 05:01:40,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 861 GetRequests, 827 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2021-10-29 05:01:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2021-10-29 05:01:40,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 1018. [2021-10-29 05:01:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 1017 states have (on average 1.2114060963618485) internal successors, (1232), 1017 states have internal predecessors, (1232), 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 05:01:40,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1232 transitions. [2021-10-29 05:01:40,631 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1232 transitions. Word has length 141 [2021-10-29 05:01:40,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:40,631 INFO L470 AbstractCegarLoop]: Abstraction has 1018 states and 1232 transitions. [2021-10-29 05:01:40,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 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 05:01:40,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1232 transitions. [2021-10-29 05:01:40,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-29 05:01:40,635 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:01:40,635 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:01:40,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:40,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2021-10-29 05:01:41,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:41,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:01:41,249 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:01:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:01:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash 569861295, now seen corresponding path program 2 times [2021-10-29 05:01:41,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:01:41,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937556640] [2021-10-29 05:01:41,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:01:41,250 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:01:41,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:01:41,251 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:01:41,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-29 05:01:43,510 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:01:43,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:01:43,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:01:43,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:01:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-10-29 05:01:43,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:01:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2021-10-29 05:01:44,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:01:44,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937556640] [2021-10-29 05:01:44,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937556640] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:01:44,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:01:44,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:01:44,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662814072] [2021-10-29 05:01:44,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:01:44,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:01:44,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:01:44,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:01:44,098 INFO L87 Difference]: Start difference. First operand 1018 states and 1232 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 05:01:44,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:01:44,170 INFO L93 Difference]: Finished difference Result 1329 states and 1599 transitions. [2021-10-29 05:01:44,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:01:44,171 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 141 [2021-10-29 05:01:44,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:01:44,171 INFO L225 Difference]: With dead ends: 1329 [2021-10-29 05:01:44,171 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:01:44,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 276 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 05:01:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:01:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:01:44,173 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 05:01:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:01:44,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 141 [2021-10-29 05:01:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:01:44,173 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:01:44,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 05:01:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:01:44,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:01:44,176 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:01:44,176 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:01:44,176 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:01:44,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-29 05:01:44,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:01:44,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:01:44,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:44,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:44,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:44,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:45,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:46,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:47,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,841 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:48,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:01:49,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:02:06,397 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-10-29 05:02:06,398 INFO L853 garLoopResultBuilder]: At program point L498(lines 493 501) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_processEnvironment_~tmp~3 (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) [2021-10-29 05:02:06,398 INFO L853 garLoopResultBuilder]: At program point L498-1(lines 493 501) the Hoare annotation is: false [2021-10-29 05:02:06,398 INFO L853 garLoopResultBuilder]: At program point L498-2(lines 493 501) the Hoare annotation is: false [2021-10-29 05:02:06,398 INFO L853 garLoopResultBuilder]: At program point L498-3(lines 493 501) the Hoare annotation is: false [2021-10-29 05:02:06,398 INFO L853 garLoopResultBuilder]: At program point L498-4(lines 493 501) the Hoare annotation is: false [2021-10-29 05:02:06,398 INFO L853 garLoopResultBuilder]: At program point L498-5(lines 493 501) the Hoare annotation is: false [2021-10-29 05:02:06,399 INFO L857 garLoopResultBuilder]: For program point L267(lines 267 284) no Hoare annotation was computed. [2021-10-29 05:02:06,399 INFO L857 garLoopResultBuilder]: For program point L267-1(lines 267 284) no Hoare annotation was computed. [2021-10-29 05:02:06,399 INFO L857 garLoopResultBuilder]: For program point L267-2(lines 267 284) no Hoare annotation was computed. [2021-10-29 05:02:06,399 INFO L860 garLoopResultBuilder]: At program point L994(lines 975 997) the Hoare annotation is: true [2021-10-29 05:02:06,399 INFO L853 garLoopResultBuilder]: At program point L962(lines 958 964) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 05:02:06,399 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-3(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-5(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-6(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-8(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-9(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,400 INFO L857 garLoopResultBuilder]: For program point L369-11(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,401 INFO L857 garLoopResultBuilder]: For program point L369-12(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,401 INFO L857 garLoopResultBuilder]: For program point L369-14(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,401 INFO L857 garLoopResultBuilder]: For program point L369-15(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,401 INFO L857 garLoopResultBuilder]: For program point L369-17(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,401 INFO L857 garLoopResultBuilder]: For program point L369-18(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,401 INFO L857 garLoopResultBuilder]: For program point L369-20(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-21(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-23(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-24(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-26(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-27(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-29(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,402 INFO L857 garLoopResultBuilder]: For program point L369-30(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L369-32(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L369-33(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 279) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L271-1(lines 271 279) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L369-35(lines 369 373) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L271-2(lines 271 279) no Hoare annotation was computed. [2021-10-29 05:02:06,403 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 152) no Hoare annotation was computed. [2021-10-29 05:02:06,404 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-10-29 05:02:06,404 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2021-10-29 05:02:06,404 INFO L857 garLoopResultBuilder]: For program point L406-3(lines 406 410) no Hoare annotation was computed. [2021-10-29 05:02:06,404 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 258) no Hoare annotation was computed. [2021-10-29 05:02:06,404 INFO L857 garLoopResultBuilder]: For program point L241-1(lines 241 258) no Hoare annotation was computed. [2021-10-29 05:02:06,404 INFO L857 garLoopResultBuilder]: For program point L406-6(lines 406 410) no Hoare annotation was computed. [2021-10-29 05:02:06,405 INFO L857 garLoopResultBuilder]: For program point L241-2(lines 241 258) no Hoare annotation was computed. [2021-10-29 05:02:06,405 INFO L857 garLoopResultBuilder]: For program point L241-3(lines 241 258) no Hoare annotation was computed. [2021-10-29 05:02:06,405 INFO L857 garLoopResultBuilder]: For program point L241-4(lines 241 258) no Hoare annotation was computed. [2021-10-29 05:02:06,405 INFO L857 garLoopResultBuilder]: For program point L241-5(lines 241 258) no Hoare annotation was computed. [2021-10-29 05:02:06,405 INFO L853 garLoopResultBuilder]: At program point L375(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,405 INFO L853 garLoopResultBuilder]: At program point L375-1(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,406 INFO L853 garLoopResultBuilder]: At program point L375-2(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,406 INFO L853 garLoopResultBuilder]: At program point L375-3(lines 360 378) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse4 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse10 (= ~waterLevel~0 (_ bv2 32))) (.cse12 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse13 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse14 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse8 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse0 .cse10 .cse11 .cse12 .cse3 .cse13 .cse14 .cse8) (and .cse0 .cse1 .cse11 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8) (and .cse9 .cse0 .cse10 .cse12 .cse3 .cse13 .cse14 .cse6 .cse8))) [2021-10-29 05:02:06,406 INFO L853 garLoopResultBuilder]: At program point L375-4(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,406 INFO L853 garLoopResultBuilder]: At program point L375-5(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,406 INFO L853 garLoopResultBuilder]: At program point L375-6(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,406 INFO L853 garLoopResultBuilder]: At program point L375-7(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,407 INFO L853 garLoopResultBuilder]: At program point L375-8(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,407 INFO L853 garLoopResultBuilder]: At program point L375-9(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,407 INFO L853 garLoopResultBuilder]: At program point L375-10(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,407 INFO L853 garLoopResultBuilder]: At program point L375-11(lines 360 378) the Hoare annotation is: false [2021-10-29 05:02:06,407 INFO L853 garLoopResultBuilder]: At program point L475(lines 470 478) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0)) (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) .cse0 (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) .cse3 .cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2021-10-29 05:02:06,407 INFO L853 garLoopResultBuilder]: At program point L475-1(lines 470 478) the Hoare annotation is: false [2021-10-29 05:02:06,408 INFO L853 garLoopResultBuilder]: At program point L475-2(lines 470 478) the Hoare annotation is: false [2021-10-29 05:02:06,408 INFO L857 garLoopResultBuilder]: For program point L112(lines 111 156) no Hoare annotation was computed. [2021-10-29 05:02:06,408 INFO L853 garLoopResultBuilder]: At program point L443(lines 438 446) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))))) [2021-10-29 05:02:06,408 INFO L853 garLoopResultBuilder]: At program point L443-1(lines 438 446) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse8 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse5 .cse9 .cse7 .cse8 .cse10) (and .cse1 .cse11 .cse12 .cse5 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4 .cse12 .cse5 .cse6))) [2021-10-29 05:02:06,408 INFO L853 garLoopResultBuilder]: At program point L443-2(lines 438 446) the Hoare annotation is: false [2021-10-29 05:02:06,409 INFO L853 garLoopResultBuilder]: At program point L443-3(lines 438 446) the Hoare annotation is: false [2021-10-29 05:02:06,409 INFO L853 garLoopResultBuilder]: At program point L311(lines 304 314) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv1 32)) .cse3 .cse4 .cse5 .cse6 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32)) .cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse4 .cse5 .cse6))) [2021-10-29 05:02:06,409 INFO L853 garLoopResultBuilder]: At program point L443-4(lines 438 446) the Hoare annotation is: false [2021-10-29 05:02:06,409 INFO L853 garLoopResultBuilder]: At program point L311-1(lines 304 314) the Hoare annotation is: false [2021-10-29 05:02:06,409 INFO L853 garLoopResultBuilder]: At program point L443-5(lines 438 446) the Hoare annotation is: false [2021-10-29 05:02:06,409 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 253) no Hoare annotation was computed. [2021-10-29 05:02:06,410 INFO L853 garLoopResultBuilder]: At program point L311-2(lines 304 314) the Hoare annotation is: false [2021-10-29 05:02:06,410 INFO L857 garLoopResultBuilder]: For program point L245-1(lines 245 253) no Hoare annotation was computed. [2021-10-29 05:02:06,410 INFO L857 garLoopResultBuilder]: For program point L245-2(lines 245 253) no Hoare annotation was computed. [2021-10-29 05:02:06,410 INFO L857 garLoopResultBuilder]: For program point L245-3(lines 245 253) no Hoare annotation was computed. [2021-10-29 05:02:06,410 INFO L857 garLoopResultBuilder]: For program point L113(lines 113 117) no Hoare annotation was computed. [2021-10-29 05:02:06,410 INFO L857 garLoopResultBuilder]: For program point L245-4(lines 245 253) no Hoare annotation was computed. [2021-10-29 05:02:06,410 INFO L857 garLoopResultBuilder]: For program point L245-5(lines 245 253) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 151) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L147-2(lines 183 189) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L512(lines 512 532) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L512-2(lines 512 532) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L512-4(lines 512 532) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L215(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,411 INFO L857 garLoopResultBuilder]: For program point L215-1(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,412 INFO L857 garLoopResultBuilder]: For program point L215-2(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,412 INFO L857 garLoopResultBuilder]: For program point L215-3(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,412 INFO L857 garLoopResultBuilder]: For program point L215-4(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,412 INFO L857 garLoopResultBuilder]: For program point L215-5(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,412 INFO L857 garLoopResultBuilder]: For program point L215-6(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,412 INFO L857 garLoopResultBuilder]: For program point L215-7(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,413 INFO L857 garLoopResultBuilder]: For program point L215-8(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,413 INFO L857 garLoopResultBuilder]: For program point L215-9(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,413 INFO L857 garLoopResultBuilder]: For program point L215-10(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,413 INFO L857 garLoopResultBuilder]: For program point L215-11(lines 215 232) no Hoare annotation was computed. [2021-10-29 05:02:06,413 INFO L853 garLoopResultBuilder]: At program point L183(lines 182 201) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse7 (= (_ bv1 32) ~pumpRunning~0)) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse6 .cse0 .cse7 .cse8 .cse3 .cse9 .cse10 .cse5) (and .cse0 .cse3 .cse9 .cse5 .cse4) (and .cse6 .cse0 .cse7 .cse2 .cse8 .cse3 .cse9 .cse10) (and .cse0 .cse2 .cse3 .cse9 .cse4))) [2021-10-29 05:02:06,413 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 183 189) no Hoare annotation was computed. [2021-10-29 05:02:06,414 INFO L853 garLoopResultBuilder]: At program point L183-2(lines 182 201) the Hoare annotation is: false [2021-10-29 05:02:06,414 INFO L853 garLoopResultBuilder]: At program point L84(lines 1 997) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 05:02:06,414 INFO L853 garLoopResultBuilder]: At program point L183-3(lines 182 201) the Hoare annotation is: false [2021-10-29 05:02:06,414 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:02:06,414 INFO L857 garLoopResultBuilder]: For program point L483(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,414 INFO L857 garLoopResultBuilder]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,414 INFO L857 garLoopResultBuilder]: For program point L483-2(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,415 INFO L857 garLoopResultBuilder]: For program point L483-3(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,415 INFO L857 garLoopResultBuilder]: For program point L483-4(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,415 INFO L857 garLoopResultBuilder]: For program point L483-5(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,415 INFO L857 garLoopResultBuilder]: For program point L483-6(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,415 INFO L857 garLoopResultBuilder]: For program point L483-7(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,415 INFO L857 garLoopResultBuilder]: For program point L219(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L483-8(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L219-1(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L483-9(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L219-2(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L483-10(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L219-3(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,416 INFO L857 garLoopResultBuilder]: For program point L483-11(lines 483 489) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L219-4(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L219-5(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L219-6(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L54-1(line 54) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L219-7(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,417 INFO L857 garLoopResultBuilder]: For program point L54-2(line 54) no Hoare annotation was computed. [2021-10-29 05:02:06,418 INFO L857 garLoopResultBuilder]: For program point L219-8(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,418 INFO L857 garLoopResultBuilder]: For program point L219-9(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,418 INFO L857 garLoopResultBuilder]: For program point L219-10(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,418 INFO L857 garLoopResultBuilder]: For program point L219-11(lines 219 227) no Hoare annotation was computed. [2021-10-29 05:02:06,418 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 422) no Hoare annotation was computed. [2021-10-29 05:02:06,418 INFO L857 garLoopResultBuilder]: For program point L121(lines 121 127) no Hoare annotation was computed. [2021-10-29 05:02:06,419 INFO L853 garLoopResultBuilder]: At program point L121-1(lines 121 127) the Hoare annotation is: (let ((.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (= ~waterLevel~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse9 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse1 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32)) .cse2 .cse7 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse3 .cse8) (and .cse0 .cse9 .cse3 .cse10 .cse11 .cse12 .cse4) (and .cse5 .cse0 .cse6 .cse1 .cse9 .cse7 .cse3 .cse8 .cse11 .cse12) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse0 .cse1 .cse9 .cse3 .cse11 .cse12 .cse4))) [2021-10-29 05:02:06,419 INFO L853 garLoopResultBuilder]: At program point L914-2(lines 914 928) the Hoare annotation is: false [2021-10-29 05:02:06,419 INFO L857 garLoopResultBuilder]: For program point L518(lines 518 531) no Hoare annotation was computed. [2021-10-29 05:02:06,419 INFO L853 garLoopResultBuilder]: At program point L518-1(lines 1 997) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv1 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse3 (= ~waterLevel~0 (_ bv1 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0)) (.cse7 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (= (_ bv1 32) ~pumpRunning~0)) (.cse9 (= ~waterLevel~0 (_ bv2 32))) (.cse12 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse0 .cse8 .cse9 .cse1 .cse10 .cse2 .cse11 .cse4 .cse5) (and .cse0 .cse12 .cse2 .cse3 .cse6) (and .cse7 .cse0 .cse8 .cse9 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32)) .cse12 .cse10 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse11 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2021-10-29 05:02:06,419 INFO L857 garLoopResultBuilder]: For program point L518-2(lines 518 531) no Hoare annotation was computed. [2021-10-29 05:02:06,419 INFO L853 garLoopResultBuilder]: At program point L518-3(lines 1 997) the Hoare annotation is: false [2021-10-29 05:02:06,420 INFO L857 garLoopResultBuilder]: For program point L518-4(lines 518 531) no Hoare annotation was computed. [2021-10-29 05:02:06,420 INFO L853 garLoopResultBuilder]: At program point L518-5(lines 1 997) the Hoare annotation is: false [2021-10-29 05:02:06,420 INFO L853 garLoopResultBuilder]: At program point L320(lines 315 323) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~6 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) [2021-10-29 05:02:06,420 INFO L853 garLoopResultBuilder]: At program point L320-1(lines 315 323) the Hoare annotation is: false [2021-10-29 05:02:06,420 INFO L853 garLoopResultBuilder]: At program point L320-2(lines 315 323) the Hoare annotation is: false [2021-10-29 05:02:06,420 INFO L857 garLoopResultBuilder]: For program point L915(line 915) no Hoare annotation was computed. [2021-10-29 05:02:06,421 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,421 INFO L857 garLoopResultBuilder]: For program point L388-2(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,421 INFO L857 garLoopResultBuilder]: For program point L388-3(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,421 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:02:06,421 INFO L857 garLoopResultBuilder]: For program point L388-5(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,421 INFO L853 garLoopResultBuilder]: At program point L190(lines 190 196) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse8 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse1 .cse6 .cse8 .cse9 .cse10) (and .cse1 .cse4 .cse6 .cse8 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse5 .cse6 .cse7 .cse9))) [2021-10-29 05:02:06,422 INFO L857 garLoopResultBuilder]: For program point L388-6(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,422 INFO L853 garLoopResultBuilder]: At program point L157(lines 110 158) the Hoare annotation is: false [2021-10-29 05:02:06,422 INFO L853 garLoopResultBuilder]: At program point L190-1(lines 190 196) the Hoare annotation is: false [2021-10-29 05:02:06,422 INFO L857 garLoopResultBuilder]: For program point L388-8(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,422 INFO L853 garLoopResultBuilder]: At program point L190-2(lines 190 196) the Hoare annotation is: false [2021-10-29 05:02:06,422 INFO L857 garLoopResultBuilder]: For program point L388-9(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,423 INFO L857 garLoopResultBuilder]: For program point L388-11(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,423 INFO L857 garLoopResultBuilder]: For program point L388-12(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,423 INFO L857 garLoopResultBuilder]: For program point L388-14(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,423 INFO L857 garLoopResultBuilder]: For program point L388-15(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,423 INFO L857 garLoopResultBuilder]: For program point L388-17(lines 388 392) no Hoare annotation was computed. [2021-10-29 05:02:06,423 INFO L853 garLoopResultBuilder]: At program point L488(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,423 INFO L853 garLoopResultBuilder]: At program point L488-1(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,424 INFO L853 garLoopResultBuilder]: At program point L488-2(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,424 INFO L853 garLoopResultBuilder]: At program point L488-3(lines 479 492) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse3 .cse7 .cse8 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse7 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8 .cse5))) [2021-10-29 05:02:06,424 INFO L853 garLoopResultBuilder]: At program point L488-4(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,424 INFO L853 garLoopResultBuilder]: At program point L488-5(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,424 INFO L853 garLoopResultBuilder]: At program point L488-6(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,424 INFO L853 garLoopResultBuilder]: At program point L488-7(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,425 INFO L853 garLoopResultBuilder]: At program point L488-8(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,425 INFO L853 garLoopResultBuilder]: At program point L488-9(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,425 INFO L853 garLoopResultBuilder]: At program point L488-10(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,425 INFO L853 garLoopResultBuilder]: At program point L488-11(lines 479 492) the Hoare annotation is: false [2021-10-29 05:02:06,425 INFO L853 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 05:02:06,425 INFO L857 garLoopResultBuilder]: For program point L918(lines 918 922) no Hoare annotation was computed. [2021-10-29 05:02:06,426 INFO L857 garLoopResultBuilder]: For program point L918-1(lines 183 189) no Hoare annotation was computed. [2021-10-29 05:02:06,426 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 528) no Hoare annotation was computed. [2021-10-29 05:02:06,426 INFO L857 garLoopResultBuilder]: For program point L522-2(lines 522 528) no Hoare annotation was computed. [2021-10-29 05:02:06,426 INFO L857 garLoopResultBuilder]: For program point L522-4(lines 522 528) no Hoare annotation was computed. [2021-10-29 05:02:06,426 INFO L857 garLoopResultBuilder]: For program point L985(lines 985 992) no Hoare annotation was computed. [2021-10-29 05:02:06,426 INFO L860 garLoopResultBuilder]: At program point L985-1(lines 985 992) the Hoare annotation is: true [2021-10-29 05:02:06,426 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:02:06,427 INFO L853 garLoopResultBuilder]: At program point L394(lines 379 397) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_processEnvironment_~tmp~3 (_ bv0 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) [2021-10-29 05:02:06,427 INFO L853 garLoopResultBuilder]: At program point L394-1(lines 379 397) the Hoare annotation is: false [2021-10-29 05:02:06,427 INFO L853 garLoopResultBuilder]: At program point L394-2(lines 379 397) the Hoare annotation is: false [2021-10-29 05:02:06,427 INFO L853 garLoopResultBuilder]: At program point L394-3(lines 379 397) the Hoare annotation is: false [2021-10-29 05:02:06,427 INFO L853 garLoopResultBuilder]: At program point L394-4(lines 379 397) the Hoare annotation is: false [2021-10-29 05:02:06,427 INFO L853 garLoopResultBuilder]: At program point L394-5(lines 379 397) the Hoare annotation is: false [2021-10-29 05:02:06,428 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 137) no Hoare annotation was computed. [2021-10-29 05:02:06,428 INFO L853 garLoopResultBuilder]: At program point L131-1(lines 131 137) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse1 .cse2 .cse7 .cse3 .cse8) (and .cse0 .cse1 .cse3 .cse9 .cse4) (and .cse0 .cse3 .cse10 .cse9 .cse4) (and .cse0 .cse2 .cse3 .cse10 .cse4) (and .cse5 .cse0 .cse6 .cse1 .cse7 .cse3 .cse8 .cse9))) [2021-10-29 05:02:06,428 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:02:06,428 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-10-29 05:02:06,428 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2021-10-29 05:02:06,431 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:02:06,433 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:02:06,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:02:06 BoogieIcfgContainer [2021-10-29 05:02:06,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:02:06,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:02:06,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:02:06,468 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:02:06,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:00:52" (3/4) ... [2021-10-29 05:02:06,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:02:06,512 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-29 05:02:06,514 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-29 05:02:06,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 05:02:06,518 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 05:02:06,520 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:02:06,521 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:02:06,523 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:02:06,548 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) [2021-10-29 05:02:06,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:02:06,549 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) [2021-10-29 05:02:06,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:02:06,550 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) [2021-10-29 05:02:06,557 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) [2021-10-29 05:02:06,558 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) [2021-10-29 05:02:06,558 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) [2021-10-29 05:02:06,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == \result) [2021-10-29 05:02:06,566 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:02:06,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && 0bv32 == pumpRunning)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:02:06,569 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result [2021-10-29 05:02:06,570 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 [2021-10-29 05:02:06,570 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && tmp___0 == 1bv32 [2021-10-29 05:02:06,656 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:02:06,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:02:06,658 INFO L168 Benchmark]: Toolchain (without parser) took 77546.73 ms. Allocated memory was 81.8 MB in the beginning and 318.8 MB in the end (delta: 237.0 MB). Free memory was 59.3 MB in the beginning and 137.6 MB in the end (delta: -78.3 MB). Peak memory consumption was 159.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,658 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:02:06,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.24 ms. Allocated memory is still 81.8 MB. Free memory was 59.0 MB in the beginning and 49.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.44 ms. Allocated memory is still 81.8 MB. Free memory was 49.8 MB in the beginning and 44.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,659 INFO L168 Benchmark]: Boogie Preprocessor took 124.08 ms. Allocated memory is still 81.8 MB. Free memory was 44.9 MB in the beginning and 41.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,659 INFO L168 Benchmark]: RCFGBuilder took 2424.39 ms. Allocated memory is still 81.8 MB. Free memory was 41.4 MB in the beginning and 37.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,660 INFO L168 Benchmark]: TraceAbstraction took 74003.92 ms. Allocated memory was 81.8 MB in the beginning and 318.8 MB in the end (delta: 237.0 MB). Free memory was 37.3 MB in the beginning and 153.3 MB in the end (delta: -116.0 MB). Peak memory consumption was 192.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,660 INFO L168 Benchmark]: Witness Printer took 189.10 ms. Allocated memory is still 318.8 MB. Free memory was 153.3 MB in the beginning and 137.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:02:06,662 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 54.5 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 711.24 ms. Allocated memory is still 81.8 MB. Free memory was 59.0 MB in the beginning and 49.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.44 ms. Allocated memory is still 81.8 MB. Free memory was 49.8 MB in the beginning and 44.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.08 ms. Allocated memory is still 81.8 MB. Free memory was 44.9 MB in the beginning and 41.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2424.39 ms. Allocated memory is still 81.8 MB. Free memory was 41.4 MB in the beginning and 37.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 74003.92 ms. Allocated memory was 81.8 MB in the beginning and 318.8 MB in the end (delta: 237.0 MB). Free memory was 37.3 MB in the beginning and 153.3 MB in the end (delta: -116.0 MB). Peak memory consumption was 192.3 MB. Max. memory is 16.1 GB. * Witness Printer took 189.10 ms. Allocated memory is still 318.8 MB. Free memory was 153.3 MB in the beginning and 137.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 16.8 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: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 54]: 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, 195 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 73.8s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 22.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2826 SDtfs, 6687 SDslu, 7795 SDs, 0 SdLazy, 1174 SolverSat, 236 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3529 GetRequests, 3342 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred in iteration=16, InterpolantAutomatonStates: 171, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 20 MinimizatonAttempts, 13769 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 69 PreInvPairs, 177 NumberOfFragments, 1238 HoareAnnotationTreeSize, 69 FomulaSimplifications, 6757006802 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 69 FomulaSimplificationsInter, 777271236 FormulaSimplificationTreeSizeReductionInter, 16.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 4.2s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 1735 NumberOfCodeBlocks, 1735 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 3416 ConstructedInterpolants, 0 QuantifiedInterpolants, 7096 SizeOfPredicates, 74 NumberOfNonLiveVariables, 6977 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 54 InterpolantComputations, 35 PerfectInterpolantSequences, 2216/2720 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: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == \result) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && tmp___0 == 1bv32 - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 958]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) - InvariantResult [Line: 914]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32)) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 985]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 975]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 1bv32) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && 0bv32 == pumpRunning)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 304]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 438]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 479]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-29 05:02:06,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa8ff435-a436-4354-8d64-a61cfc6da356/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...