./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl --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 09088bf7df05fb0aeb7e867d28b9bd6e460902ff256d0b616aa1b0e915b11fad --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:45:08,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:45:08,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:45:08,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:45:08,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:45:08,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:45:08,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:45:08,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:45:08,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:45:08,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:45:08,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:45:08,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:45:08,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:45:08,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:45:08,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:45:08,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:45:08,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:45:08,471 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:45:08,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:45:08,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:45:08,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:45:08,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:45:08,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:45:08,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:45:08,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:45:08,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:45:08,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:45:08,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:45:08,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:45:08,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:45:08,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:45:08,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:45:08,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:45:08,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:45:08,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:45:08,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:45:08,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:45:08,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:45:08,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:45:08,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:45:08,501 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:45:08,502 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:45:08,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:45:08,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:45:08,529 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:45:08,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:45:08,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:45:08,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:45:08,531 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:45:08,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:45:08,532 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:45:08,532 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:45:08,532 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:45:08,532 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:45:08,532 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:45:08,533 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:45:08,533 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:45:08,533 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:45:08,533 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:45:08,534 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:45:08,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:45:08,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:45:08,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:45:08,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:45:08,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:45:08,536 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:45:08,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:45:08,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:45:08,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:45:08,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:45:08,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:45:08,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:45:08,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:45:08,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:45:08,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:08,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:45:08,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:45:08,538 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:45:08,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:45:08,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:45:08,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:45:08,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:45:08,539 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:45:08,540 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09088bf7df05fb0aeb7e867d28b9bd6e460902ff256d0b616aa1b0e915b11fad [2021-11-23 16:45:08,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:45:08,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:45:08,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:45:08,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:45:08,883 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:45:08,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-11-23 16:45:08,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/ca712b0fa/f060d515ec804b478832af699e779361/FLAGad2e3009a [2021-11-23 16:45:09,599 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:45:09,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-11-23 16:45:09,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/ca712b0fa/f060d515ec804b478832af699e779361/FLAGad2e3009a [2021-11-23 16:45:09,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/ca712b0fa/f060d515ec804b478832af699e779361 [2021-11-23 16:45:09,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:45:09,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:45:09,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:09,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:45:09,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:45:09,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:09" (1/1) ... [2021-11-23 16:45:09,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e2c4a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:09, skipping insertion in model container [2021-11-23 16:45:09,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:09" (1/1) ... [2021-11-23 16:45:09,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:45:09,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:45:10,171 WARN L230 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-11-23 16:45:10,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:10,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:45:10,414 WARN L230 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-11-23 16:45:10,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:10,511 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:45:10,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10 WrapperNode [2021-11-23 16:45:10,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:10,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:10,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:45:10,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:45:10,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,641 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2021-11-23 16:45:10,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:10,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:45:10,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:45:10,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:45:10,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:45:10,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:45:10,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:45:10,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:45:10,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:10" (1/1) ... [2021-11-23 16:45:10,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:10,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:45:10,799 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:45:10,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:45:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:45:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:45:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:45:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:45:10,929 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:45:10,930 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:45:12,169 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:45:12,204 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:45:12,210 INFO L158 Benchmark]: Toolchain (without parser) took 2365.33ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 71.1MB in the beginning and 58.3MB in the end (delta: 12.8MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2021-11-23 16:45:12,210 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:45:12,211 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.89ms. Allocated memory is still 111.1MB. Free memory was 70.9MB in the beginning and 68.9MB in the end (delta: 2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 16:45:12,212 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.47ms. Allocated memory is still 111.1MB. Free memory was 68.9MB in the beginning and 60.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 16:45:12,213 INFO L158 Benchmark]: Boogie Preprocessor took 116.75ms. Allocated memory is still 111.1MB. Free memory was 60.8MB in the beginning and 56.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:45:12,214 INFO L158 Benchmark]: RCFGBuilder took 1447.78ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 56.0MB in the beginning and 58.3MB in the end (delta: -2.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2021-11-23 16:45:12,218 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 111.1MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.89ms. Allocated memory is still 111.1MB. Free memory was 70.9MB in the beginning and 68.9MB in the end (delta: 2.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.47ms. Allocated memory is still 111.1MB. Free memory was 68.9MB in the beginning and 60.8MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.75ms. Allocated memory is still 111.1MB. Free memory was 60.8MB in the beginning and 56.0MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1447.78ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 56.0MB in the beginning and 58.3MB in the end (delta: -2.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:45:12,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl --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 09088bf7df05fb0aeb7e867d28b9bd6e460902ff256d0b616aa1b0e915b11fad --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:45:14,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:45:14,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:45:14,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:45:14,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:45:14,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:45:14,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:45:14,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:45:14,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:45:14,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:45:14,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:45:14,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:45:14,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:45:14,750 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:45:14,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:45:14,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:45:14,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:45:14,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:45:14,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:45:14,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:45:14,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:45:14,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:45:14,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:45:14,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:45:14,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:45:14,791 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:45:14,791 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:45:14,793 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:45:14,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:45:14,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:45:14,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:45:14,800 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:45:14,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:45:14,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:45:14,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:45:14,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:45:14,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:45:14,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:45:14,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:45:14,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:45:14,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:45:14,813 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:45:14,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:45:14,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:45:14,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:45:14,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:45:14,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:45:14,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:45:14,867 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:45:14,867 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:45:14,867 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:45:14,868 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:45:14,869 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:45:14,869 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:45:14,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:45:14,871 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:45:14,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:45:14,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:45:14,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:45:14,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:45:14,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:45:14,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:45:14,873 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:45:14,873 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:45:14,873 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:45:14,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:45:14,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:45:14,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:45:14,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:45:14,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:45:14,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:45:14,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:14,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:45:14,876 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:45:14,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:45:14,876 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:45:14,877 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:45:14,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:45:14,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:45:14,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:45:14,878 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 09088bf7df05fb0aeb7e867d28b9bd6e460902ff256d0b616aa1b0e915b11fad [2021-11-23 16:45:15,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:45:15,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:45:15,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:45:15,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:45:15,337 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:45:15,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-11-23 16:45:15,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/b9e560855/4e5e3bed1df846709611d4ea85583fca/FLAGe797aa22e [2021-11-23 16:45:16,075 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:45:16,075 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/sv-benchmarks/c/eca-rers2012/Problem10_label39.c [2021-11-23 16:45:16,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/b9e560855/4e5e3bed1df846709611d4ea85583fca/FLAGe797aa22e [2021-11-23 16:45:16,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/data/b9e560855/4e5e3bed1df846709611d4ea85583fca [2021-11-23 16:45:16,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:45:16,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:45:16,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:16,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:45:16,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:45:16,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:16" (1/1) ... [2021-11-23 16:45:16,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7c9177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:16, skipping insertion in model container [2021-11-23 16:45:16,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:16" (1/1) ... [2021-11-23 16:45:16,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:45:16,389 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:45:16,564 WARN L230 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-11-23 16:45:16,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:16,872 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:45:16,905 WARN L230 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_fea8320f-fb41-42fb-8c77-1adff6e09dd5/sv-benchmarks/c/eca-rers2012/Problem10_label39.c[3149,3162] [2021-11-23 16:45:17,063 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:17,090 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:45:17,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17 WrapperNode [2021-11-23 16:45:17,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:17,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:17,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:45:17,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:45:17,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,208 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 595 [2021-11-23 16:45:17,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:17,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:45:17,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:45:17,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:45:17,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:45:17,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:45:17,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:45:17,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:45:17,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (1/1) ... [2021-11-23 16:45:17,345 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:17,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:45:17,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:45:17,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:45:17,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:45:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:45:17,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:45:17,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:45:17,498 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:45:17,500 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:45:20,506 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:45:20,515 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:45:20,516 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:45:20,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:45:20 BoogieIcfgContainer [2021-11-23 16:45:20,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:45:20,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:45:20,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:45:20,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:45:20,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:45:16" (1/3) ... [2021-11-23 16:45:20,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab56b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:45:20, skipping insertion in model container [2021-11-23 16:45:20,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:17" (2/3) ... [2021-11-23 16:45:20,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab56b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:45:20, skipping insertion in model container [2021-11-23 16:45:20,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:45:20" (3/3) ... [2021-11-23 16:45:20,527 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2021-11-23 16:45:20,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:45:20,532 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:45:20,575 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:45:20,581 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 [2021-11-23 16:45:20,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:45:20,603 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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) [2021-11-23 16:45:20,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 16:45:20,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:45:20,611 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] [2021-11-23 16:45:20,611 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:45:20,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:45:20,617 INFO L85 PathProgramCache]: Analyzing trace with hash 678582746, now seen corresponding path program 1 times [2021-11-23 16:45:20,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:45:20,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527747462] [2021-11-23 16:45:20,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:45:20,631 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:45:20,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:45:20,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:45:20,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:45:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:45:20,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 16:45:20,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:45:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:45:20,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 16:45:20,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:45:20,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527747462] [2021-11-23 16:45:20,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527747462] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 16:45:20,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 16:45:20,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 16:45:20,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680699130] [2021-11-23 16:45:20,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:45:20,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 16:45:20,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:45:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 16:45:21,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:45:21,011 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2021-11-23 16:45:24,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:45:24,086 INFO L93 Difference]: Finished difference Result 567 states and 981 transitions. [2021-11-23 16:45:24,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 16:45:24,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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 [2021-11-23 16:45:24,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:45:24,117 INFO L225 Difference]: With dead ends: 567 [2021-11-23 16:45:24,118 INFO L226 Difference]: Without dead ends: 282 [2021-11-23 16:45:24,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:45:24,126 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 136 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-23 16:45:24,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 103 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-23 16:45:24,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-23 16:45:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-23 16:45:24,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.395017793594306) internal successors, (392), 281 states have internal predecessors, (392), 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) [2021-11-23 16:45:24,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 392 transitions. [2021-11-23 16:45:24,188 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 392 transitions. Word has length 26 [2021-11-23 16:45:24,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:45:24,188 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 392 transitions. [2021-11-23 16:45:24,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2021-11-23 16:45:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 392 transitions. [2021-11-23 16:45:24,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-23 16:45:24,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:45:24,193 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:45:24,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 16:45:24,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:45:24,399 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:45:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:45:24,400 INFO L85 PathProgramCache]: Analyzing trace with hash 353948486, now seen corresponding path program 1 times [2021-11-23 16:45:24,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:45:24,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [233955455] [2021-11-23 16:45:24,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:45:24,408 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:45:24,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:45:24,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:45:24,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 16:45:24,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:45:24,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 16:45:24,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:45:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:45:24,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 16:45:24,727 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:45:24,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [233955455] [2021-11-23 16:45:24,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [233955455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 16:45:24,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 16:45:24,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 16:45:24,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542130617] [2021-11-23 16:45:24,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:45:24,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 16:45:24,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:45:24,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 16:45:24,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:45:24,732 INFO L87 Difference]: Start difference. First operand 282 states and 392 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2021-11-23 16:45:27,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:45:27,563 INFO L93 Difference]: Finished difference Result 562 states and 823 transitions. [2021-11-23 16:45:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 16:45:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2021-11-23 16:45:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:45:27,571 INFO L225 Difference]: With dead ends: 562 [2021-11-23 16:45:27,572 INFO L226 Difference]: Without dead ends: 421 [2021-11-23 16:45:27,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:45:27,574 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 116 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 16:45:27,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 220 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 16:45:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-23 16:45:27,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-11-23 16:45:27,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2880952380952382) internal successors, (541), 420 states have internal predecessors, (541), 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) [2021-11-23 16:45:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 541 transitions. [2021-11-23 16:45:27,605 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 541 transitions. Word has length 92 [2021-11-23 16:45:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:45:27,606 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 541 transitions. [2021-11-23 16:45:27,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2021-11-23 16:45:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 541 transitions. [2021-11-23 16:45:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-23 16:45:27,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:45:27,609 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:45:27,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 16:45:27,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:45:27,820 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:45:27,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:45:27,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1950251268, now seen corresponding path program 1 times [2021-11-23 16:45:27,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:45:27,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1263020357] [2021-11-23 16:45:27,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:45:27,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:45:27,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:45:27,825 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:45:27,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 16:45:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:45:27,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 16:45:27,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:45:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:45:28,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 16:45:28,227 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:45:28,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1263020357] [2021-11-23 16:45:28,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1263020357] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 16:45:28,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 16:45:28,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 16:45:28,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098380379] [2021-11-23 16:45:28,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:45:28,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 16:45:28,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:45:28,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 16:45:28,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:45:28,230 INFO L87 Difference]: Start difference. First operand 421 states and 541 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2021-11-23 16:45:31,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:45:31,156 INFO L93 Difference]: Finished difference Result 979 states and 1295 transitions. [2021-11-23 16:45:31,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 16:45:31,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2021-11-23 16:45:31,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:45:31,165 INFO L225 Difference]: With dead ends: 979 [2021-11-23 16:45:31,165 INFO L226 Difference]: Without dead ends: 560 [2021-11-23 16:45:31,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:45:31,168 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 76 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-23 16:45:31,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [76 Valid, 76 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-23 16:45:31,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-23 16:45:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2021-11-23 16:45:31,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2093023255813953) internal successors, (676), 559 states have internal predecessors, (676), 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) [2021-11-23 16:45:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 676 transitions. [2021-11-23 16:45:31,206 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 676 transitions. Word has length 96 [2021-11-23 16:45:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:45:31,207 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 676 transitions. [2021-11-23 16:45:31,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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) [2021-11-23 16:45:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 676 transitions. [2021-11-23 16:45:31,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-23 16:45:31,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:45:31,210 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:45:31,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 16:45:31,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:45:31,421 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:45:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:45:31,422 INFO L85 PathProgramCache]: Analyzing trace with hash 446653076, now seen corresponding path program 1 times [2021-11-23 16:45:31,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:45:31,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367304564] [2021-11-23 16:45:31,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:45:31,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:45:31,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:45:31,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:45:31,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 16:45:31,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:45:31,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 16:45:31,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:45:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:45:32,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:45:35,595 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:45:35,595 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:45:35,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367304564] [2021-11-23 16:45:35,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [367304564] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 16:45:35,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 16:45:35,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-11-23 16:45:35,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870233842] [2021-11-23 16:45:35,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:45:35,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 16:45:35,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:45:35,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 16:45:35,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 16:45:35,599 INFO L87 Difference]: Start difference. First operand 560 states and 676 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:45:43,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:45:59,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:46:03,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:46:11,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:46:14,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:46:15,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:46:15,463 INFO L93 Difference]: Finished difference Result 1417 states and 1745 transitions. [2021-11-23 16:46:15,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 16:46:15,467 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-23 16:46:15,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:46:15,474 INFO L225 Difference]: With dead ends: 1417 [2021-11-23 16:46:15,474 INFO L226 Difference]: Without dead ends: 979 [2021-11-23 16:46:15,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 16:46:15,476 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 77 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.8s IncrementalHoareTripleChecker+Time [2021-11-23 16:46:15,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 18 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 39.8s Time] [2021-11-23 16:46:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2021-11-23 16:46:15,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 560. [2021-11-23 16:46:15,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2039355992844365) internal successors, (673), 559 states have internal predecessors, (673), 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) [2021-11-23 16:46:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 673 transitions. [2021-11-23 16:46:15,510 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 673 transitions. Word has length 101 [2021-11-23 16:46:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:46:15,511 INFO L470 AbstractCegarLoop]: Abstraction has 560 states and 673 transitions. [2021-11-23 16:46:15,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:46:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 673 transitions. [2021-11-23 16:46:15,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-23 16:46:15,514 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:15,515 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:46:15,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:15,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:15,726 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:15,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:15,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1205520650, now seen corresponding path program 1 times [2021-11-23 16:46:15,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:15,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302448006] [2021-11-23 16:46:15,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:15,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:15,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:15,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:15,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 16:46:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:15,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 16:46:15,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:46:16,191 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:16,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 16:46:16,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:46:16,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302448006] [2021-11-23 16:46:16,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302448006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 16:46:16,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 16:46:16,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 16:46:16,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433301600] [2021-11-23 16:46:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:46:16,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 16:46:16,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:46:16,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 16:46:16,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:46:16,194 INFO L87 Difference]: Start difference. First operand 560 states and 673 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) [2021-11-23 16:46:19,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:46:19,253 INFO L93 Difference]: Finished difference Result 1396 states and 1718 transitions. [2021-11-23 16:46:19,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 16:46:19,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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 113 [2021-11-23 16:46:19,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:46:19,260 INFO L225 Difference]: With dead ends: 1396 [2021-11-23 16:46:19,260 INFO L226 Difference]: Without dead ends: 977 [2021-11-23 16:46:19,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 16:46:19,264 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 89 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-23 16:46:19,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 36 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-23 16:46:19,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-11-23 16:46:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838. [2021-11-23 16:46:19,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.1995221027479093) internal successors, (1004), 837 states have internal predecessors, (1004), 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) [2021-11-23 16:46:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1004 transitions. [2021-11-23 16:46:19,292 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1004 transitions. Word has length 113 [2021-11-23 16:46:19,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:46:19,292 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1004 transitions. [2021-11-23 16:46:19,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) [2021-11-23 16:46:19,293 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1004 transitions. [2021-11-23 16:46:19,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-23 16:46:19,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:19,299 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:46:19,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:19,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:19,500 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:19,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:19,500 INFO L85 PathProgramCache]: Analyzing trace with hash 282954665, now seen corresponding path program 1 times [2021-11-23 16:46:19,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:19,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112745454] [2021-11-23 16:46:19,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:19,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:19,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:19,503 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:19,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 16:46:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:19,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 16:46:19,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:46:20,506 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:20,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:46:21,089 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-11-23 16:46:21,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:46:21,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112745454] [2021-11-23 16:46:21,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112745454] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 16:46:21,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 16:46:21,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-23 16:46:21,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140978517] [2021-11-23 16:46:21,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:46:21,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 16:46:21,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:46:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 16:46:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 16:46:21,092 INFO L87 Difference]: Start difference. First operand 838 states and 1004 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 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) [2021-11-23 16:46:26,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:46:26,681 INFO L93 Difference]: Finished difference Result 2384 states and 2895 transitions. [2021-11-23 16:46:26,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 16:46:26,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 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 200 [2021-11-23 16:46:26,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:46:26,692 INFO L225 Difference]: With dead ends: 2384 [2021-11-23 16:46:26,692 INFO L226 Difference]: Without dead ends: 1687 [2021-11-23 16:46:26,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 16:46:26,695 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 280 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-23 16:46:26,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 19 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-23 16:46:26,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1687 states. [2021-11-23 16:46:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1687 to 1672. [2021-11-23 16:46:26,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.158587672052663) internal successors, (1936), 1671 states have internal predecessors, (1936), 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) [2021-11-23 16:46:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1936 transitions. [2021-11-23 16:46:26,748 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1936 transitions. Word has length 200 [2021-11-23 16:46:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:46:26,749 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 1936 transitions. [2021-11-23 16:46:26,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 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) [2021-11-23 16:46:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1936 transitions. [2021-11-23 16:46:26,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-23 16:46:26,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:46:26,755 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:46:26,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 16:46:26,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:46:26,967 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:46:26,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:46:26,968 INFO L85 PathProgramCache]: Analyzing trace with hash 2013920405, now seen corresponding path program 1 times [2021-11-23 16:46:26,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:46:26,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1819129421] [2021-11-23 16:46:26,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:26,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:46:26,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:46:26,970 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:46:26,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 16:46:27,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:27,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 16:46:27,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:46:28,471 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:28,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:46:43,817 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:43,817 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:46:43,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1819129421] [2021-11-23 16:46:43,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1819129421] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 16:46:43,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2035772518] [2021-11-23 16:46:43,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:46:43,818 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 16:46:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 16:46:43,827 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 16:46:43,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-23 16:46:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:46:44,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 16:46:44,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:46:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:46:46,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:47:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 157 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:47:01,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2035772518] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 16:47:01,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876350386] [2021-11-23 16:47:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:47:01,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 16:47:01,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:01,856 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 16:47:01,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 16:47:01,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:47:02,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 16:47:02,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:47:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:47:05,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:47:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 47 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:47:19,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876350386] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 16:47:19,874 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-23 16:47:19,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 4, 5, 4, 4] total 12 [2021-11-23 16:47:19,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889321951] [2021-11-23 16:47:19,875 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-23 16:47:19,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 16:47:19,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:47:19,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 16:47:19,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2021-11-23 16:47:19,878 INFO L87 Difference]: Start difference. First operand 1672 states and 1936 transitions. Second operand has 13 states, 13 states have (on average 63.53846153846154) internal successors, (826), 12 states have internal predecessors, (826), 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) [2021-11-23 16:47:40,458 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:47:48,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:47:56,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:47:58,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:00,159 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:04,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:12,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:18,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:22,020 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:26,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:31,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:33,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:35,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:38,069 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:39,448 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:43,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:46,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:54,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:56,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:48:59,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:02,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:04,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:09,992 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:13,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:26,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:28,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:31,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:34,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:35,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:38,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:40,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:42,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:43,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:45,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:46,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 16:49:47,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:49:47,922 INFO L93 Difference]: Finished difference Result 4481 states and 5349 transitions. [2021-11-23 16:49:47,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 16:49:47,926 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 63.53846153846154) internal successors, (826), 12 states have internal predecessors, (826), 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 250 [2021-11-23 16:49:47,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:49:47,942 INFO L225 Difference]: With dead ends: 4481 [2021-11-23 16:49:47,942 INFO L226 Difference]: Without dead ends: 2950 [2021-11-23 16:49:47,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1498 GetRequests, 1483 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=105, Invalid=167, Unknown=0, NotChecked=0, Total=272 [2021-11-23 16:49:47,946 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 731 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 641 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 145.4s IncrementalHoareTripleChecker+Time [2021-11-23 16:49:47,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [731 Valid, 57 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 2240 Invalid, 3 Unknown, 0 Unchecked, 145.4s Time] [2021-11-23 16:49:47,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2021-11-23 16:49:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2228. [2021-11-23 16:49:48,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 2227 states have (on average 1.1674898967220475) internal successors, (2600), 2227 states have internal predecessors, (2600), 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) [2021-11-23 16:49:48,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2600 transitions. [2021-11-23 16:49:48,020 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2600 transitions. Word has length 250 [2021-11-23 16:49:48,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:49:48,020 INFO L470 AbstractCegarLoop]: Abstraction has 2228 states and 2600 transitions. [2021-11-23 16:49:48,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 63.53846153846154) internal successors, (826), 12 states have internal predecessors, (826), 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) [2021-11-23 16:49:48,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2600 transitions. [2021-11-23 16:49:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-23 16:49:48,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:49:48,028 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:49:48,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 16:49:48,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 16:49:48,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-23 16:49:48,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt [2021-11-23 16:49:48,649 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:49:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:49:48,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1888731945, now seen corresponding path program 1 times [2021-11-23 16:49:48,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:49:48,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873895598] [2021-11-23 16:49:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:49:48,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:49:48,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:49:48,652 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:49:48,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 16:49:48,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 16:49:48,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 16:49:48,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 16:49:50,124 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 16:49:50,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 16:49:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-11-23 16:49:52,088 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 16:49:52,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [873895598] [2021-11-23 16:49:52,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [873895598] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 16:49:52,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 16:49:52,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-11-23 16:49:52,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863645798] [2021-11-23 16:49:52,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 16:49:52,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 16:49:52,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 16:49:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 16:49:52,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 16:49:52,090 INFO L87 Difference]: Start difference. First operand 2228 states and 2600 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-23 16:49:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 16:49:54,058 INFO L93 Difference]: Finished difference Result 3914 states and 4625 transitions. [2021-11-23 16:49:54,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 16:49:54,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 269 [2021-11-23 16:49:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 16:49:54,060 INFO L225 Difference]: With dead ends: 3914 [2021-11-23 16:49:54,061 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 16:49:54,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 16:49:54,066 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 16:49:54,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-23 16:49:54,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 16:49:54,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 16:49:54,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:49:54,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 16:49:54,068 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2021-11-23 16:49:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 16:49:54,068 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 16:49:54,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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) [2021-11-23 16:49:54,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 16:49:54,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 16:49:54,072 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 16:49:54,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 16:49:54,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:49:54,287 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 16:50:02,323 INFO L858 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-11-23 16:50:02,323 INFO L858 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-11-23 16:50:02,323 INFO L858 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-11-23 16:50:02,323 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-11-23 16:50:02,324 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-11-23 16:50:02,324 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-11-23 16:50:02,324 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,324 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,324 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,325 INFO L858 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,325 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,325 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,325 INFO L858 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-11-23 16:50:02,325 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-23 16:50:02,325 INFO L858 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-11-23 16:50:02,326 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-23 16:50:02,326 INFO L858 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-11-23 16:50:02,326 INFO L858 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-11-23 16:50:02,326 INFO L858 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-11-23 16:50:02,326 INFO L858 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-11-23 16:50:02,326 INFO L858 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-11-23 16:50:02,327 INFO L858 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-11-23 16:50:02,327 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-11-23 16:50:02,327 INFO L858 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-11-23 16:50:02,327 INFO L858 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-11-23 16:50:02,327 INFO L858 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,327 INFO L858 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,328 INFO L858 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,328 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,328 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,328 INFO L858 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,328 INFO L858 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-11-23 16:50:02,329 INFO L858 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-11-23 16:50:02,329 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-11-23 16:50:02,329 INFO L858 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-11-23 16:50:02,329 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-23 16:50:02,329 INFO L858 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-11-23 16:50:02,329 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-23 16:50:02,330 INFO L858 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-11-23 16:50:02,330 INFO L858 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-11-23 16:50:02,330 INFO L858 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-11-23 16:50:02,330 INFO L858 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-11-23 16:50:02,330 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-11-23 16:50:02,330 INFO L858 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,331 INFO L858 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,331 INFO L858 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,331 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,331 INFO L858 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,331 INFO L858 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,331 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-11-23 16:50:02,332 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-11-23 16:50:02,332 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-11-23 16:50:02,332 INFO L858 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-11-23 16:50:02,332 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-23 16:50:02,332 INFO L858 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-11-23 16:50:02,332 INFO L858 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-11-23 16:50:02,333 INFO L858 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,334 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,334 INFO L858 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,334 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,334 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,334 INFO L858 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,334 INFO L858 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-11-23 16:50:02,335 INFO L858 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-11-23 16:50:02,335 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-23 16:50:02,335 INFO L858 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-11-23 16:50:02,335 INFO L858 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-11-23 16:50:02,335 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-23 16:50:02,335 INFO L858 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-11-23 16:50:02,336 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-23 16:50:02,336 INFO L858 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-11-23 16:50:02,336 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-11-23 16:50:02,336 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-11-23 16:50:02,336 INFO L858 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,336 INFO L858 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,337 INFO L858 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,337 INFO L858 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,337 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,337 INFO L858 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-11-23 16:50:02,337 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-11-23 16:50:02,337 INFO L858 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-11-23 16:50:02,338 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-11-23 16:50:02,338 INFO L858 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-11-23 16:50:02,338 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-23 16:50:02,338 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-23 16:50:02,338 INFO L858 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-11-23 16:50:02,338 INFO L858 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-11-23 16:50:02,339 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-11-23 16:50:02,339 INFO L858 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-11-23 16:50:02,339 INFO L858 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-11-23 16:50:02,339 INFO L858 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-11-23 16:50:02,339 INFO L858 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-11-23 16:50:02,339 INFO L858 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,340 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,340 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,340 INFO L858 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,340 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,340 INFO L858 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-11-23 16:50:02,340 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 16:50:02,341 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-23 16:50:02,341 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-23 16:50:02,341 INFO L858 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-11-23 16:50:02,341 INFO L858 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-11-23 16:50:02,341 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-23 16:50:02,342 INFO L854 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse3 (not (= (_ bv0 32) ~a12~0))) (.cse4 (not (= (_ bv14 32) ~a4~0)))) (let ((.cse0 (or (not (= (_ bv8 32) ~a19~0)) .cse3 (not (= (_ bv0 32) ~a10~0)) .cse4)) (.cse2 (not (bvsle (bvadd (_ bv505228 32) (bvsdiv (bvmul (bvsdiv ~a1~0 (_ bv5 32)) (_ bv5 32)) (_ bv5 32))) (_ bv4294967283 32)))) (.cse1 (= ~a19~0 (_ bv9 32)))) (or (and .cse0 (or (not (= (_ bv1 32) ~a10~0)) (not (bvsle ~a1~0 (_ bv4294967283 32))))) (and .cse1 .cse2 (or .cse3 (not (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|)) .cse4)) (and .cse0 .cse2 (not .cse1)) (bvslt (_ bv38 32) ~a1~0)))) [2021-11-23 16:50:02,342 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-11-23 16:50:02,342 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-11-23 16:50:02,342 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-11-23 16:50:02,342 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-11-23 16:50:02,342 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,343 INFO L858 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,343 INFO L858 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,343 INFO L858 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,343 INFO L858 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,343 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-11-23 16:50:02,343 INFO L858 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-11-23 16:50:02,344 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-11-23 16:50:02,345 INFO L858 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-11-23 16:50:02,345 INFO L861 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-11-23 16:50:02,345 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-11-23 16:50:02,345 INFO L858 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-11-23 16:50:02,345 INFO L858 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-11-23 16:50:02,345 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 16:50:02,346 INFO L858 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,346 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,346 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,346 INFO L858 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,346 INFO L858 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,346 INFO L858 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-11-23 16:50:02,347 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 16:50:02,348 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,349 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-11-23 16:50:02,349 INFO L858 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-11-23 16:50:02,349 INFO L858 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-11-23 16:50:02,349 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-11-23 16:50:02,349 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-23 16:50:02,349 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-23 16:50:02,350 INFO L858 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-11-23 16:50:02,350 INFO L858 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-11-23 16:50:02,350 INFO L858 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-11-23 16:50:02,350 INFO L858 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-11-23 16:50:02,350 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-11-23 16:50:02,350 INFO L858 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-11-23 16:50:02,351 INFO L854 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse3 (not (= (_ bv0 32) ~a12~0))) (.cse4 (not (= (_ bv14 32) ~a4~0)))) (let ((.cse0 (or (not (= (_ bv8 32) ~a19~0)) .cse3 (not (= (_ bv0 32) ~a10~0)) .cse4)) (.cse2 (not (bvsle (bvadd (_ bv505228 32) (bvsdiv (bvmul (bvsdiv ~a1~0 (_ bv5 32)) (_ bv5 32)) (_ bv5 32))) (_ bv4294967283 32)))) (.cse1 (= ~a19~0 (_ bv9 32)))) (or (and .cse0 (or (not (= (_ bv1 32) ~a10~0)) (not (bvsle ~a1~0 (_ bv4294967283 32))))) (and .cse1 .cse2 (or .cse3 (not (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|)) .cse4)) (and .cse0 .cse2 (not .cse1)) (bvslt (_ bv38 32) ~a1~0)))) [2021-11-23 16:50:02,351 INFO L858 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-11-23 16:50:02,351 INFO L858 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,351 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,351 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,351 INFO L858 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-11-23 16:50:02,352 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-23 16:50:02,353 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-23 16:50:02,353 INFO L858 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-11-23 16:50:02,353 INFO L858 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-11-23 16:50:02,353 INFO L858 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-11-23 16:50:02,353 INFO L858 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-11-23 16:50:02,353 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,354 INFO L858 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,355 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,355 INFO L858 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,355 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,355 INFO L858 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-11-23 16:50:02,355 INFO L858 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-11-23 16:50:02,355 INFO L858 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-11-23 16:50:02,356 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-23 16:50:02,360 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:50:02,362 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 16:50:02,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:50:02 BoogieIcfgContainer [2021-11-23 16:50:02,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 16:50:02,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 16:50:02,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 16:50:02,383 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 16:50:02,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:45:20" (3/4) ... [2021-11-23 16:50:02,387 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 16:50:02,408 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 16:50:02,409 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 16:50:02,411 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 16:50:02,412 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 16:50:02,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 16:50:02,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 16:50:02,545 INFO L158 Benchmark]: Toolchain (without parser) took 286256.19ms. Allocated memory was 60.8MB in the beginning and 104.9MB in the end (delta: 44.0MB). Free memory was 39.3MB in the beginning and 45.7MB in the end (delta: -6.4MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,545 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:50:02,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 798.72ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 24.3MB in the end (delta: 14.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,547 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.74ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 24.3MB in the beginning and 60.7MB in the end (delta: -36.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,548 INFO L158 Benchmark]: Boogie Preprocessor took 126.54ms. Allocated memory is still 81.8MB. Free memory was 60.7MB in the beginning and 56.5MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,548 INFO L158 Benchmark]: RCFGBuilder took 3182.05ms. Allocated memory is still 81.8MB. Free memory was 56.5MB in the beginning and 47.8MB in the end (delta: 8.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,548 INFO L158 Benchmark]: TraceAbstraction took 281861.39ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 47.4MB in the beginning and 60.5MB in the end (delta: -13.1MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,549 INFO L158 Benchmark]: Witness Printer took 161.92ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 45.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:50:02,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 798.72ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 24.3MB in the end (delta: 14.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.74ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 24.3MB in the beginning and 60.7MB in the end (delta: -36.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 126.54ms. Allocated memory is still 81.8MB. Free memory was 60.7MB in the beginning and 56.5MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3182.05ms. Allocated memory is still 81.8MB. Free memory was 56.5MB in the beginning and 47.8MB in the end (delta: 8.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 281861.39ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 47.4MB in the beginning and 60.5MB in the end (delta: -13.1MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Witness Printer took 161.92ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 45.7MB in the end (delta: 14.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 92]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 281.8s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 207.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 1505 SdHoareTripleChecker+Valid, 204.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1505 mSDsluCounter, 751 SdHoareTripleChecker+Invalid, 192.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 1266 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5228 IncrementalHoareTripleChecker+Invalid, 6497 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1266 mSolverCounterUnsat, 663 mSDtfsCounter, 5228 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2957 GetRequests, 2924 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2228occurred in iteration=7, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 1295 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 39 NumberOfFragments, 189 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1590 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1820 FormulaSimplificationTreeSizeReductionInter, 7.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 61.9s InterpolantComputationTime, 1647 NumberOfCodeBlocks, 1647 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2951 ConstructedInterpolants, 0 QuantifiedInterpolants, 22429 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2077 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 615/1599 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((!(8bv32 == a19) || !(0bv32 == a12)) || !(0bv32 == a10)) || !(14bv32 == a4)) && (!(1bv32 == a10) || !~bvsle32(a1, 4294967283bv32))) || ((a19 == 9bv32 && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && ((!(0bv32 == a12) || !(4bv32 == input)) || !(14bv32 == a4)))) || (((((!(8bv32 == a19) || !(0bv32 == a12)) || !(0bv32 == a10)) || !(14bv32 == a4)) && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && !(a19 == 9bv32))) || ~bvslt32(38bv32, a1) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((!(8bv32 == a19) || !(0bv32 == a12)) || !(0bv32 == a10)) || !(14bv32 == a4)) && (!(1bv32 == a10) || !~bvsle32(a1, 4294967283bv32))) || ((a19 == 9bv32 && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && ((!(0bv32 == a12) || !(4bv32 == input)) || !(14bv32 == a4)))) || (((((!(8bv32 == a19) || !(0bv32 == a12)) || !(0bv32 == a10)) || !(14bv32 == a4)) && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && !(a19 == 9bv32))) || ~bvslt32(38bv32, a1) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-23 16:50:02,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fea8320f-fb41-42fb-8c77-1adff6e09dd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE