./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF --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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:18:50,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:18:50,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:18:50,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:18:50,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:18:50,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:18:50,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:18:50,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:18:50,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:18:50,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:18:50,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:18:50,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:18:50,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:18:50,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:18:50,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:18:50,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:18:50,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:18:50,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:18:50,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:18:50,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:18:50,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:18:50,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:18:50,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:18:50,714 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:18:50,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:18:50,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:18:50,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:18:50,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:18:50,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:18:50,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:18:50,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:18:50,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:18:50,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:18:50,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:18:50,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:18:50,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:18:50,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:18:50,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:18:50,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:18:50,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:18:50,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:18:50,734 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 23:18:50,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:18:50,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:18:50,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:18:50,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:18:50,785 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:18:50,786 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:18:50,786 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:18:50,786 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:18:50,786 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:18:50,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:18:50,786 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:18:50,787 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:18:50,787 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:18:50,787 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:18:50,787 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:18:50,787 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:18:50,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:18:50,788 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:18:50,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:18:50,789 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:18:50,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:18:50,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:18:50,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:18:50,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:18:50,789 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:18:50,790 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:18:50,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:18:50,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:18:50,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:18:50,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:18:50,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:18:50,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:18:50,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:18:50,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:18:50,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:18:50,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:18:50,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:18:50,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:18:50,792 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:18:50,792 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:18:50,792 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_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2021-11-12 23:18:51,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:18:51,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:18:51,106 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:18:51,107 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:18:51,108 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:18:51,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-12 23:18:51,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/703230b46/f0bde43198344af29be9fb3961fa05a4/FLAGef8548388 [2021-11-12 23:18:51,642 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:18:51,643 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-12 23:18:51,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/703230b46/f0bde43198344af29be9fb3961fa05a4/FLAGef8548388 [2021-11-12 23:18:52,023 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/703230b46/f0bde43198344af29be9fb3961fa05a4 [2021-11-12 23:18:52,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:18:52,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:18:52,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:18:52,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:18:52,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:18:52,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:18:52" (1/1) ... [2021-11-12 23:18:52,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ef584c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:52, skipping insertion in model container [2021-11-12 23:18:52,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:18:52" (1/1) ... [2021-11-12 23:18:52,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:18:52,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:18:52,267 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_187d72d8-7b09-4a8e-8dab-b272a9bf7562/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-12 23:18:52,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:18:52,285 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:18:52,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3a9dbe68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:52, skipping insertion in model container [2021-11-12 23:18:52,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:18:52,286 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:18:52,288 INFO L158 Benchmark]: Toolchain (without parser) took 260.01ms. Allocated memory is still 130.0MB. Free memory was 91.7MB in the beginning and 104.4MB in the end (delta: -12.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 23:18:52,289 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:18:52,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.45ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 104.4MB in the end (delta: -13.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-12 23:18:52,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.45ms. Allocated memory is still 130.0MB. Free memory was 91.4MB in the beginning and 104.4MB in the end (delta: -13.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 106]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF --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 f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:18:54,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:18:54,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:18:54,515 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:18:54,516 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:18:54,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:18:54,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:18:54,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:18:54,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:18:54,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:18:54,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:18:54,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:18:54,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:18:54,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:18:54,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:18:54,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:18:54,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:18:54,550 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:18:54,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:18:54,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:18:54,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:18:54,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:18:54,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:18:54,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:18:54,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:18:54,575 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:18:54,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:18:54,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:18:54,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:18:54,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:18:54,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:18:54,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:18:54,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:18:54,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:18:54,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:18:54,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:18:54,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:18:54,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:18:54,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:18:54,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:18:54,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:18:54,592 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 23:18:54,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:18:54,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:18:54,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:18:54,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:18:54,619 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:18:54,620 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:18:54,620 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:18:54,620 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:18:54,620 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:18:54,620 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:18:54,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:18:54,621 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 23:18:54,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 23:18:54,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:18:54,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:18:54,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:18:54,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:18:54,623 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:18:54,623 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:18:54,623 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:18:54,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 23:18:54,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:18:54,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:18:54,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:18:54,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:18:54,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:18:54,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:18:54,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:18:54,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:18:54,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:18:54,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:18:54,625 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:18:54,626 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:18:54,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:18:54,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:18:54,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:18:54,626 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_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f91e7b856fd6bf43c568f48d1703ed519fbb708e5c1360b96f8534e6fa4ed35d [2021-11-12 23:18:55,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:18:55,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:18:55,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:18:55,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:18:55,071 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:18:55,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-12 23:18:55,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/31ed52033/5fb30a3d607f42baa5faea96c3498eca/FLAGd6a86175d [2021-11-12 23:18:55,691 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:18:55,691 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2021-11-12 23:18:55,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/31ed52033/5fb30a3d607f42baa5faea96c3498eca/FLAGd6a86175d [2021-11-12 23:18:56,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/data/31ed52033/5fb30a3d607f42baa5faea96c3498eca [2021-11-12 23:18:56,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:18:56,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:18:56,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:18:56,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:18:56,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:18:56,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa3b2ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56, skipping insertion in model container [2021-11-12 23:18:56,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:18:56,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:18:56,217 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_187d72d8-7b09-4a8e-8dab-b272a9bf7562/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-12 23:18:56,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:18:56,238 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:18:56,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:18:56,315 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_187d72d8-7b09-4a8e-8dab-b272a9bf7562/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-12 23:18:56,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:18:56,325 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:18:56,353 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_187d72d8-7b09-4a8e-8dab-b272a9bf7562/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c[2598,2611] [2021-11-12 23:18:56,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:18:56,372 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:18:56,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56 WrapperNode [2021-11-12 23:18:56,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:18:56,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:18:56,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:18:56,375 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:18:56,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:18:56,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:18:56,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:18:56,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:18:56,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:18:56,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:18:56,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:18:56,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:18:56,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (1/1) ... [2021-11-12 23:18:56,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:18:56,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:18:56,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:18:56,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:18:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:18:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:18:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:18:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-11-12 23:18:56,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-11-12 23:18:56,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-11-12 23:18:56,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-11-12 23:18:56,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-11-12 23:18:56,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-11-12 23:18:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:18:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:18:56,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:18:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:18:56,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:18:56,560 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-12 23:18:57,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:18:57,328 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-12 23:18:57,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:18:57 BoogieIcfgContainer [2021-11-12 23:18:57,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:18:57,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:18:57,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:18:57,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:18:57,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:18:56" (1/3) ... [2021-11-12 23:18:57,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5adb0488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:18:57, skipping insertion in model container [2021-11-12 23:18:57,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:18:56" (2/3) ... [2021-11-12 23:18:57,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5adb0488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:18:57, skipping insertion in model container [2021-11-12 23:18:57,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:18:57" (3/3) ... [2021-11-12 23:18:57,339 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2021-11-12 23:18:57,344 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-12 23:18:57,344 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:18:57,344 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:18:57,344 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-12 23:18:57,384 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,385 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,385 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,385 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,385 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,386 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,388 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,388 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,389 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,389 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,390 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,391 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,392 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,393 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,393 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,394 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,394 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,395 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,395 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,395 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,395 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,396 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,396 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,397 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,397 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,397 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,398 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,398 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,398 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,399 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,399 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,399 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,400 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,401 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,401 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,402 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,402 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,403 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,403 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,404 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,404 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,404 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,404 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,405 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,405 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,406 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,406 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,406 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,406 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,407 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,407 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,407 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,407 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,408 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,408 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,408 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,409 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,409 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,409 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,409 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,409 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,410 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,410 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,410 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,410 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,410 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,411 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,411 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,411 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,411 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,414 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,415 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,415 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,418 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,419 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,419 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,419 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,419 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,419 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,420 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,420 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,421 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-12 23:18:57,423 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-11-12 23:18:57,486 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:18:57,493 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:18:57,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-12 23:18:57,513 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-12 23:18:57,526 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 291 transitions, 606 flow [2021-11-12 23:18:57,529 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 291 transitions, 606 flow [2021-11-12 23:18:57,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 276 places, 291 transitions, 606 flow [2021-11-12 23:18:57,645 INFO L129 PetriNetUnfolder]: 25/288 cut-off events. [2021-11-12 23:18:57,645 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-11-12 23:18:57,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 288 events. 25/288 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 177 event pairs, 0 based on Foata normal form. 0/262 useless extension candidates. Maximal degree in co-relation 232. Up to 2 conditions per place. [2021-11-12 23:18:57,657 INFO L116 LiptonReduction]: Number of co-enabled transitions 2184 [2021-11-12 23:19:20,506 INFO L131 LiptonReduction]: Checked pairs total: 4225 [2021-11-12 23:19:20,506 INFO L133 LiptonReduction]: Total number of compositions: 308 [2021-11-12 23:19:20,514 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 40 transitions, 104 flow [2021-11-12 23:19:20,557 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 378 states, 377 states have (on average 3.2546419098143238) internal successors, (1227), 377 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:20,563 INFO L276 IsEmpty]: Start isEmpty. Operand has 378 states, 377 states have (on average 3.2546419098143238) internal successors, (1227), 377 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 23:19:20,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:20,582 INFO L514 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] [2021-11-12 23:19:20,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1560678842, now seen corresponding path program 1 times [2021-11-12 23:19:20,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:20,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249189416] [2021-11-12 23:19:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:19:20,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:20,604 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:20,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:19:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:19:20,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-12 23:19:20,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:19:21,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:19:21,106 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:21,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249189416] [2021-11-12 23:19:21,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249189416] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:19:21,108 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:19:21,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-11-12 23:19:21,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055483195] [2021-11-12 23:19:21,110 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:19:21,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:19:21,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:19:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:19:21,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:19:21,141 INFO L87 Difference]: Start difference. First operand has 378 states, 377 states have (on average 3.2546419098143238) internal successors, (1227), 377 states have internal predecessors, (1227), 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 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:21,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:19:21,807 INFO L93 Difference]: Finished difference Result 687 states and 2234 transitions. [2021-11-12 23:19:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:19:21,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 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 23 [2021-11-12 23:19:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:19:21,831 INFO L225 Difference]: With dead ends: 687 [2021-11-12 23:19:21,831 INFO L226 Difference]: Without dead ends: 564 [2021-11-12 23:19:21,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:19:21,835 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 73 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 521.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.55ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 587.38ms IncrementalHoareTripleChecker+Time [2021-11-12 23:19:21,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 43 Invalid, 211 Unknown, 0 Unchecked, 4.55ms Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 587.38ms Time] [2021-11-12 23:19:21,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-11-12 23:19:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 440. [2021-11-12 23:19:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 439 states have (on average 3.2710706150341684) internal successors, (1436), 439 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:21,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 1436 transitions. [2021-11-12 23:19:21,922 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 1436 transitions. Word has length 23 [2021-11-12 23:19:21,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:19:21,923 INFO L470 AbstractCegarLoop]: Abstraction has 440 states and 1436 transitions. [2021-11-12 23:19:21,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 1436 transitions. [2021-11-12 23:19:21,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-12 23:19:21,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:21,930 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:19:21,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:22,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:19:22,142 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:22,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:22,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1726626162, now seen corresponding path program 1 times [2021-11-12 23:19:22,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:22,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1196080970] [2021-11-12 23:19:22,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:19:22,144 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:22,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:22,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:22,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:19:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:19:22,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-12 23:19:22,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:19:22,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 23:19:22,676 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:22,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1196080970] [2021-11-12 23:19:22,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1196080970] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:19:22,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:19:22,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2021-11-12 23:19:22,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319906933] [2021-11-12 23:19:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:19:22,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:19:22,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:19:22,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:19:22,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:19:22,679 INFO L87 Difference]: Start difference. First operand 440 states and 1436 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:19:23,131 INFO L93 Difference]: Finished difference Result 572 states and 1804 transitions. [2021-11-12 23:19:23,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:19:23,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-12 23:19:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:19:23,141 INFO L225 Difference]: With dead ends: 572 [2021-11-12 23:19:23,141 INFO L226 Difference]: Without dead ends: 444 [2021-11-12 23:19:23,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:19:23,144 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 50 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 317.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 369.50ms IncrementalHoareTripleChecker+Time [2021-11-12 23:19:23,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 26 Invalid, 127 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [14 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 369.50ms Time] [2021-11-12 23:19:23,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2021-11-12 23:19:23,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2021-11-12 23:19:23,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 443 states have (on average 3.250564334085779) internal successors, (1440), 443 states have internal predecessors, (1440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:23,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 1440 transitions. [2021-11-12 23:19:23,191 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 1440 transitions. Word has length 26 [2021-11-12 23:19:23,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:19:23,191 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 1440 transitions. [2021-11-12 23:19:23,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:23,192 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 1440 transitions. [2021-11-12 23:19:23,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:19:23,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:23,198 INFO L514 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] [2021-11-12 23:19:23,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:23,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:19:23,410 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:23,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:23,413 INFO L85 PathProgramCache]: Analyzing trace with hash 864395424, now seen corresponding path program 1 times [2021-11-12 23:19:23,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:23,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287363635] [2021-11-12 23:19:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:19:23,416 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:23,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:23,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:23,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:19:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:19:23,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:19:23,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:24,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:24,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:24,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:24,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:24,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287363635] [2021-11-12 23:19:24,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287363635] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:24,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1538030607] [2021-11-12 23:19:24,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:19:24,486 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:19:24,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:19:24,488 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:19:24,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-12 23:19:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:19:24,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:19:24,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:24,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:24,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:25,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:25,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1538030607] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:25,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657370635] [2021-11-12 23:19:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:19:25,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:19:25,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:19:25,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:19:25,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-12 23:19:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:19:25,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:19:25,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:25,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:26,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657370635] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:26,160 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:19:26,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7, 7, 10, 9] total 31 [2021-11-12 23:19:26,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991506164] [2021-11-12 23:19:26,161 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:19:26,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-12 23:19:26,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:19:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-12 23:19:26,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=717, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:19:26,163 INFO L87 Difference]: Start difference. First operand 444 states and 1440 transitions. Second operand has 31 states, 31 states have (on average 4.387096774193548) internal successors, (136), 31 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:19:32,748 INFO L93 Difference]: Finished difference Result 2133 states and 6722 transitions. [2021-11-12 23:19:32,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-12 23:19:32,750 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.387096774193548) internal successors, (136), 31 states have internal predecessors, (136), 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 30 [2021-11-12 23:19:32,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:19:32,769 INFO L225 Difference]: With dead ends: 2133 [2021-11-12 23:19:32,770 INFO L226 Difference]: Without dead ends: 2133 [2021-11-12 23:19:32,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2174 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2118, Invalid=6438, Unknown=0, NotChecked=0, Total=8556 [2021-11-12 23:19:32,774 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 881 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2887.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.07ms SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3428.23ms IncrementalHoareTripleChecker+Time [2021-11-12 23:19:32,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [881 Valid, 129 Invalid, 2153 Unknown, 0 Unchecked, 16.07ms Time], IncrementalHoareTripleChecker [201 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 3428.23ms Time] [2021-11-12 23:19:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2021-11-12 23:19:32,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 837. [2021-11-12 23:19:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 3.2595693779904304) internal successors, (2725), 836 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:32,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 2725 transitions. [2021-11-12 23:19:32,834 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 2725 transitions. Word has length 30 [2021-11-12 23:19:32,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:19:32,835 INFO L470 AbstractCegarLoop]: Abstraction has 837 states and 2725 transitions. [2021-11-12 23:19:32,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.387096774193548) internal successors, (136), 31 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:32,835 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 2725 transitions. [2021-11-12 23:19:32,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:19:32,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:32,839 INFO L514 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] [2021-11-12 23:19:32,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:33,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:33,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:33,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:19:33,454 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:33,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:33,454 INFO L85 PathProgramCache]: Analyzing trace with hash -741092048, now seen corresponding path program 2 times [2021-11-12 23:19:33,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:33,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263600338] [2021-11-12 23:19:33,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:19:33,455 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:33,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:33,456 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:33,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:19:33,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-12 23:19:33,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:33,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:19:33,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:19:33,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:34,062 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:19:34,062 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:34,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263600338] [2021-11-12 23:19:34,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263600338] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:19:34,063 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:19:34,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 11 [2021-11-12 23:19:34,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170786730] [2021-11-12 23:19:34,063 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:19:34,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:19:34,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:19:34,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:19:34,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:19:34,065 INFO L87 Difference]: Start difference. First operand 837 states and 2725 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:35,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:19:35,034 INFO L93 Difference]: Finished difference Result 1940 states and 6451 transitions. [2021-11-12 23:19:35,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:19:35,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 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 30 [2021-11-12 23:19:35,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:19:35,053 INFO L225 Difference]: With dead ends: 1940 [2021-11-12 23:19:35,053 INFO L226 Difference]: Without dead ends: 1913 [2021-11-12 23:19:35,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=218, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:19:35,055 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 222 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 677.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.75ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 767.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:19:35,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [222 Valid, 58 Invalid, 348 Unknown, 0 Unchecked, 2.75ms Time], IncrementalHoareTripleChecker [13 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 767.51ms Time] [2021-11-12 23:19:35,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2021-11-12 23:19:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 887. [2021-11-12 23:19:35,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 3.294582392776524) internal successors, (2919), 886 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 2919 transitions. [2021-11-12 23:19:35,105 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 2919 transitions. Word has length 30 [2021-11-12 23:19:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:19:35,106 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 2919 transitions. [2021-11-12 23:19:35,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:35,107 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 2919 transitions. [2021-11-12 23:19:35,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:19:35,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:35,110 INFO L514 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] [2021-11-12 23:19:35,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:35,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:19:35,325 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:35,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:35,326 INFO L85 PathProgramCache]: Analyzing trace with hash -827783858, now seen corresponding path program 3 times [2021-11-12 23:19:35,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:35,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82981217] [2021-11-12 23:19:35,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-12 23:19:35,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:35,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:35,328 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:35,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:19:35,435 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-12 23:19:35,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:35,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:19:35,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:35,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:19:35,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:35,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:19:35,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:35,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82981217] [2021-11-12 23:19:35,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82981217] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:19:35,885 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:19:35,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 11 [2021-11-12 23:19:35,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278597353] [2021-11-12 23:19:35,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:19:35,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:19:35,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:19:35,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:19:35,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:19:35,887 INFO L87 Difference]: Start difference. First operand 887 states and 2919 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:37,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:19:37,034 INFO L93 Difference]: Finished difference Result 2118 states and 7028 transitions. [2021-11-12 23:19:37,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-12 23:19:37,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 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 30 [2021-11-12 23:19:37,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:19:37,053 INFO L225 Difference]: With dead ends: 2118 [2021-11-12 23:19:37,053 INFO L226 Difference]: Without dead ends: 2091 [2021-11-12 23:19:37,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=266, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:19:37,055 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 184 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 728.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.61ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 842.30ms IncrementalHoareTripleChecker+Time [2021-11-12 23:19:37,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 58 Invalid, 395 Unknown, 0 Unchecked, 2.61ms Time], IncrementalHoareTripleChecker [20 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 842.30ms Time] [2021-11-12 23:19:37,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2021-11-12 23:19:37,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 887. [2021-11-12 23:19:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 887 states, 886 states have (on average 3.294582392776524) internal successors, (2919), 886 states have internal predecessors, (2919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:37,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 887 states to 887 states and 2919 transitions. [2021-11-12 23:19:37,103 INFO L78 Accepts]: Start accepts. Automaton has 887 states and 2919 transitions. Word has length 30 [2021-11-12 23:19:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:19:37,104 INFO L470 AbstractCegarLoop]: Abstraction has 887 states and 2919 transitions. [2021-11-12 23:19:37,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:37,104 INFO L276 IsEmpty]: Start isEmpty. Operand 887 states and 2919 transitions. [2021-11-12 23:19:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:19:37,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:37,108 INFO L514 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] [2021-11-12 23:19:37,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:37,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:19:37,319 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:37,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:37,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1850858454, now seen corresponding path program 4 times [2021-11-12 23:19:37,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:37,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483361679] [2021-11-12 23:19:37,321 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:19:37,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:37,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:37,322 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:37,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:19:37,501 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:19:37,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:37,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:19:37,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:37,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:37,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:38,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:38,258 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:38,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483361679] [2021-11-12 23:19:38,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483361679] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:38,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2026210232] [2021-11-12 23:19:38,259 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:19:38,259 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:19:38,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:19:38,264 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:19:38,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-12 23:19:38,473 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:19:38,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:38,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:19:38,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:38,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:38,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:38,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2026210232] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:38,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211203623] [2021-11-12 23:19:38,988 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-12 23:19:38,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:19:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:19:38,991 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:19:38,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-12 23:19:39,088 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-12 23:19:39,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:39,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:19:39,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:39,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:39,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211203623] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:39,913 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:19:39,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7, 7, 10, 9] total 33 [2021-11-12 23:19:39,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070599841] [2021-11-12 23:19:39,913 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:19:39,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-12 23:19:39,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:19:39,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-12 23:19:39,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=800, Unknown=0, NotChecked=0, Total=1056 [2021-11-12 23:19:39,915 INFO L87 Difference]: Start difference. First operand 887 states and 2919 transitions. Second operand has 33 states, 33 states have (on average 4.212121212121212) internal successors, (139), 33 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:46,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:19:46,794 INFO L93 Difference]: Finished difference Result 2461 states and 7738 transitions. [2021-11-12 23:19:46,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-12 23:19:46,795 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.212121212121212) internal successors, (139), 33 states have internal predecessors, (139), 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 30 [2021-11-12 23:19:46,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:19:46,814 INFO L225 Difference]: With dead ends: 2461 [2021-11-12 23:19:46,814 INFO L226 Difference]: Without dead ends: 2461 [2021-11-12 23:19:46,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2126 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2142, Invalid=6230, Unknown=0, NotChecked=0, Total=8372 [2021-11-12 23:19:46,818 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 1024 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3343.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 2583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.46ms SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3888.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:19:46,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 124 Invalid, 2583 Unknown, 0 Unchecked, 11.46ms Time], IncrementalHoareTripleChecker [219 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 3888.00ms Time] [2021-11-12 23:19:46,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2021-11-12 23:19:46,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 981. [2021-11-12 23:19:46,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 3.286734693877551) internal successors, (3221), 980 states have internal predecessors, (3221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 3221 transitions. [2021-11-12 23:19:46,886 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 3221 transitions. Word has length 30 [2021-11-12 23:19:46,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:19:46,886 INFO L470 AbstractCegarLoop]: Abstraction has 981 states and 3221 transitions. [2021-11-12 23:19:46,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.212121212121212) internal successors, (139), 33 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:19:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 3221 transitions. [2021-11-12 23:19:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:19:46,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:19:46,890 INFO L514 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] [2021-11-12 23:19:46,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:47,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:47,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:19:47,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:19:47,501 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:19:47,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:19:47,501 INFO L85 PathProgramCache]: Analyzing trace with hash 169516684, now seen corresponding path program 5 times [2021-11-12 23:19:47,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:19:47,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1717555359] [2021-11-12 23:19:47,502 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 23:19:47,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:19:47,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:19:47,503 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:19:47,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:19:47,723 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:19:47,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:47,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-12 23:19:47,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 23:19:48,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:48,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:48,542 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:19:48,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1717555359] [2021-11-12 23:19:48,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1717555359] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:48,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2017955480] [2021-11-12 23:19:48,542 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 23:19:48,542 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:19:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:19:48,543 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:19:48,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-12 23:19:55,604 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:19:55,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:55,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:19:55,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:19:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:55,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:19:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:19:56,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2017955480] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:19:56,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320368267] [2021-11-12 23:19:56,131 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-12 23:19:56,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-12 23:19:56,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:19:56,132 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-12 23:19:56,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-12 23:19:59,809 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-12 23:19:59,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:19:59,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:19:59,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:20:00,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:20:00,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:20:00,397 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-12 23:20:00,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1320368267] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:20:00,398 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-12 23:20:00,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 7, 7, 10, 9] total 31 [2021-11-12 23:20:00,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614831262] [2021-11-12 23:20:00,398 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-12 23:20:00,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-12 23:20:00,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:20:00,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-12 23:20:00,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2021-11-12 23:20:00,400 INFO L87 Difference]: Start difference. First operand 981 states and 3221 transitions. Second operand has 31 states, 31 states have (on average 3.870967741935484) internal successors, (120), 31 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:08,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:08,084 INFO L93 Difference]: Finished difference Result 3601 states and 11293 transitions. [2021-11-12 23:20:08,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-12 23:20:08,086 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.870967741935484) internal successors, (120), 31 states have internal predecessors, (120), 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 30 [2021-11-12 23:20:08,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:08,116 INFO L225 Difference]: With dead ends: 3601 [2021-11-12 23:20:08,116 INFO L226 Difference]: Without dead ends: 3601 [2021-11-12 23:20:08,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3286 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2603, Invalid=8739, Unknown=0, NotChecked=0, Total=11342 [2021-11-12 23:20:08,121 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 785 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3184.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 2557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.47ms SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3702.10ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:08,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 104 Invalid, 2557 Unknown, 0 Unchecked, 9.47ms Time], IncrementalHoareTripleChecker [200 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 3702.10ms Time] [2021-11-12 23:20:08,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2021-11-12 23:20:08,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 1069. [2021-11-12 23:20:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1069 states, 1068 states have (on average 3.331460674157303) internal successors, (3558), 1068 states have internal predecessors, (3558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:08,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 3558 transitions. [2021-11-12 23:20:08,216 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 3558 transitions. Word has length 30 [2021-11-12 23:20:08,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:08,217 INFO L470 AbstractCegarLoop]: Abstraction has 1069 states and 3558 transitions. [2021-11-12 23:20:08,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.870967741935484) internal successors, (120), 31 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:08,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 3558 transitions. [2021-11-12 23:20:08,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-12 23:20:08,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:08,223 INFO L514 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] [2021-11-12 23:20:08,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:20:08,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:20:08,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-11-12 23:20:08,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:20:08,839 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:20:08,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:08,840 INFO L85 PathProgramCache]: Analyzing trace with hash 82824874, now seen corresponding path program 6 times [2021-11-12 23:20:08,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:20:08,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512726891] [2021-11-12 23:20:08,840 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-12 23:20:08,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:20:08,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:20:08,842 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:20:08,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:20:08,946 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2021-11-12 23:20:08,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-12 23:20:08,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 23:20:08,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:20:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:20:09,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:20:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 23:20:09,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:20:09,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512726891] [2021-11-12 23:20:09,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512726891] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:20:09,371 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:20:09,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 11 [2021-11-12 23:20:09,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868262218] [2021-11-12 23:20:09,371 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:20:09,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:20:09,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:20:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:20:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:20:09,373 INFO L87 Difference]: Start difference. First operand 1069 states and 3558 transitions. Second operand has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:10,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:20:10,431 INFO L93 Difference]: Finished difference Result 2104 states and 6980 transitions. [2021-11-12 23:20:10,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-12 23:20:10,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 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 30 [2021-11-12 23:20:10,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:20:10,449 INFO L225 Difference]: With dead ends: 2104 [2021-11-12 23:20:10,450 INFO L226 Difference]: Without dead ends: 2077 [2021-11-12 23:20:10,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=212, Unknown=0, NotChecked=0, Total=342 [2021-11-12 23:20:10,451 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 208 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 692.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.07ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 794.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:20:10,451 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 57 Invalid, 388 Unknown, 0 Unchecked, 2.07ms Time], IncrementalHoareTripleChecker [9 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 794.95ms Time] [2021-11-12 23:20:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2021-11-12 23:20:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 1055. [2021-11-12 23:20:10,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 1054 states have (on average 3.3036053130929792) internal successors, (3482), 1054 states have internal predecessors, (3482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:10,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 3482 transitions. [2021-11-12 23:20:10,506 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 3482 transitions. Word has length 30 [2021-11-12 23:20:10,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:20:10,507 INFO L470 AbstractCegarLoop]: Abstraction has 1055 states and 3482 transitions. [2021-11-12 23:20:10,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.454545454545454) internal successors, (60), 12 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:20:10,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 3482 transitions. [2021-11-12 23:20:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 23:20:10,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:20:10,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:20:10,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:20:10,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:20:10,750 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-11-12 23:20:10,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:20:10,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1802979020, now seen corresponding path program 1 times [2021-11-12 23:20:10,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:20:10,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [860760729] [2021-11-12 23:20:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:20:10,751 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:20:10,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:20:10,751 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:20:10,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_187d72d8-7b09-4a8e-8dab-b272a9bf7562/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:20:11,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:20:11,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-12 23:20:11,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:20:11,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:11,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:11,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:11,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:11,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:11,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:11,455 INFO L354 Elim1Store]: treesize reduction 276, result has 15.6 percent of original size [2021-11-12 23:20:11,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 119 [2021-11-12 23:20:12,554 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-12 23:20:12,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 47 treesize of output 70 [2021-11-12 23:20:13,001 INFO L354 Elim1Store]: treesize reduction 147, result has 29.3 percent of original size [2021-11-12 23:20:13,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 98 treesize of output 145 [2021-11-12 23:20:14,019 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-11-12 23:20:14,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 164 treesize of output 174 [2021-11-12 23:20:14,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 45 [2021-11-12 23:20:22,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,456 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:20:22,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:20:22,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:20:22,461 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:20:22,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:20:23,677 INFO L354 Elim1Store]: treesize reduction 1713, result has 11.9 percent of original size [2021-11-12 23:20:23,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 33 case distinctions, treesize of input 139 treesize of output 299 [2021-11-12 23:26:30,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,809 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-12 23:26:30,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:26:30,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-12 23:29:19,416 WARN L227 SmtUtils]: Spent 2.81m on a formula simplification. DAG size of input: 719 DAG size of output: 264 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-12 23:29:19,417 INFO L354 Elim1Store]: treesize reduction 3870, result has 17.8 percent of original size [2021-11-12 23:29:19,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 16 select indices, 16 select index equivalence classes, 15 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 127 case distinctions, treesize of input 357 treesize of output 1068