./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label06.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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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 8fe6fb83fb08ef54afbd8d78d8c97f9d20e73a7ae4eae7f287d2ff90296f8470 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:26:40,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:26:40,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:26:40,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:26:40,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:26:40,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:26:40,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:26:40,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:26:40,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:26:40,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:26:40,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:26:40,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:26:40,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:26:40,576 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:26:40,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:26:40,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:26:40,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:26:40,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:26:40,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:26:40,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:26:40,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:26:40,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:26:40,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:26:40,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:26:40,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:26:40,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:26:40,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:26:40,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:26:40,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:26:40,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:26:40,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:26:40,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:26:40,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:26:40,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:26:40,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:26:40,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:26:40,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:26:40,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:26:40,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:26:40,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:26:40,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:26:40,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:26:40,693 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:26:40,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:26:40,694 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:26:40,694 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:26:40,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:26:40,695 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:26:40,695 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:26:40,696 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:26:40,696 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:26:40,696 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:26:40,696 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:26:40,697 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:26:40,697 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:26:40,697 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:26:40,697 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:26:40,698 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:26:40,698 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:26:40,698 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:26:40,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:26:40,699 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:26:40,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:26:40,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:26:40,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:26:40,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:26:40,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:26:40,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:26:40,701 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:26:40,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:26:40,702 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:26:40,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:26:40,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:26:40,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:26:40,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:40,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:26:40,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:26:40,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:26:40,704 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:26:40,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:26:40,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:26:40,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:26:40,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:26:40,705 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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fe6fb83fb08ef54afbd8d78d8c97f9d20e73a7ae4eae7f287d2ff90296f8470 [2021-11-23 17:26:41,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:26:41,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:26:41,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:26:41,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:26:41,061 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:26:41,063 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2021-11-23 17:26:41,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/f0e8acf82/0d2d65ff196940fe99989cda1990127a/FLAGee52e0c2f [2021-11-23 17:26:41,952 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:26:41,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2021-11-23 17:26:41,967 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/f0e8acf82/0d2d65ff196940fe99989cda1990127a/FLAGee52e0c2f [2021-11-23 17:26:42,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/f0e8acf82/0d2d65ff196940fe99989cda1990127a [2021-11-23 17:26:42,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:26:42,151 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:26:42,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:42,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:26:42,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:26:42,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:42,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36070bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42, skipping insertion in model container [2021-11-23 17:26:42,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:42,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:26:42,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:26:42,679 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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/sv-benchmarks/c/eca-rers2012/Problem02_label06.c[21333,21346] [2021-11-23 17:26:42,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:42,711 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:26:42,891 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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/sv-benchmarks/c/eca-rers2012/Problem02_label06.c[21333,21346] [2021-11-23 17:26:42,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:42,931 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:26:42,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42 WrapperNode [2021-11-23 17:26:42,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:42,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:42,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:26:42,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:26:42,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:42,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,080 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-11-23 17:26:43,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:43,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:26:43,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:26:43,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:26:43,109 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:26:43,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:26:43,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:26:43,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:26:43,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:42" (1/1) ... [2021-11-23 17:26:43,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:43,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:26:43,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:26:43,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:26:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:26:43,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:26:43,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:26:43,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:26:43,461 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:26:43,463 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:26:44,820 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:26:44,905 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 17:26:44,919 INFO L158 Benchmark]: Toolchain (without parser) took 2763.90ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 74.0MB in the beginning and 63.7MB in the end (delta: 10.2MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-11-23 17:26:44,921 INFO L158 Benchmark]: CDTParser took 2.27ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:26:44,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 773.76ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 68.7MB in the end (delta: 5.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:26:44,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 155.51ms. Allocated memory is still 107.0MB. Free memory was 68.4MB in the beginning and 62.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:26:44,927 INFO L158 Benchmark]: Boogie Preprocessor took 134.66ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 58.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:26:44,929 INFO L158 Benchmark]: RCFGBuilder took 1687.77ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 58.6MB in the beginning and 63.7MB in the end (delta: -5.1MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2021-11-23 17:26:44,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.27ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.9MB in the end (delta: 47.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 773.76ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 68.7MB in the end (delta: 5.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 155.51ms. Allocated memory is still 107.0MB. Free memory was 68.4MB in the beginning and 62.8MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 134.66ms. Allocated memory is still 107.0MB. Free memory was 62.8MB in the beginning and 58.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1687.77ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 58.6MB in the beginning and 63.7MB in the end (delta: -5.1MB). Peak memory consumption was 22.6MB. 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 17:26:45,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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 8fe6fb83fb08ef54afbd8d78d8c97f9d20e73a7ae4eae7f287d2ff90296f8470 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:26:48,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:26:48,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:26:48,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:26:48,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:26:48,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:26:48,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:26:48,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:26:48,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:26:48,216 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:26:48,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:26:48,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:26:48,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:26:48,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:26:48,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:26:48,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:26:48,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:26:48,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:26:48,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:26:48,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:26:48,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:26:48,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:26:48,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:26:48,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:26:48,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:26:48,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:26:48,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:26:48,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:26:48,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:26:48,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:26:48,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:26:48,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:26:48,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:26:48,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:26:48,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:26:48,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:26:48,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:26:48,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:26:48,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:26:48,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:26:48,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:26:48,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:26:48,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:26:48,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:26:48,367 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:26:48,368 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:26:48,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:26:48,369 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:26:48,370 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:26:48,370 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:26:48,370 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:26:48,370 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:26:48,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:26:48,372 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:26:48,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:26:48,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:26:48,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:26:48,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:26:48,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:26:48,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:26:48,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:26:48,376 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:26:48,376 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:26:48,377 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:26:48,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:26:48,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:26:48,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:26:48,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:26:48,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:26:48,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:26:48,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:26:48,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:48,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:26:48,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:26:48,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:26:48,381 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:26:48,381 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:26:48,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:26:48,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:26:48,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:26:48,383 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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fe6fb83fb08ef54afbd8d78d8c97f9d20e73a7ae4eae7f287d2ff90296f8470 [2021-11-23 17:26:48,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:26:48,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:26:48,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:26:48,938 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:26:48,939 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:26:48,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2021-11-23 17:26:49,030 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/d1babd883/d86e9221f35a4c368b3f336efef30558/FLAGa2e46dad3 [2021-11-23 17:26:49,870 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:26:49,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/sv-benchmarks/c/eca-rers2012/Problem02_label06.c [2021-11-23 17:26:49,884 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/d1babd883/d86e9221f35a4c368b3f336efef30558/FLAGa2e46dad3 [2021-11-23 17:26:50,092 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/data/d1babd883/d86e9221f35a4c368b3f336efef30558 [2021-11-23 17:26:50,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:26:50,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:26:50,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:50,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:26:50,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:26:50,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:50,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ef567b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50, skipping insertion in model container [2021-11-23 17:26:50,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:50,123 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:26:50,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:26:50,687 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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/sv-benchmarks/c/eca-rers2012/Problem02_label06.c[21333,21346] [2021-11-23 17:26:50,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:50,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:26:50,953 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_a02af1c8-0782-40aa-b39d-d1006dbf7b67/sv-benchmarks/c/eca-rers2012/Problem02_label06.c[21333,21346] [2021-11-23 17:26:50,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:50,994 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:26:50,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50 WrapperNode [2021-11-23 17:26:50,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:50,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:50,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:26:50,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:26:51,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,159 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 666 [2021-11-23 17:26:51,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:51,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:26:51,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:26:51,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:26:51,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:26:51,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:26:51,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:26:51,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:26:51,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (1/1) ... [2021-11-23 17:26:51,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:51,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:26:51,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:26:51,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:26:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:26:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:26:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:26:51,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:26:51,580 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:26:51,583 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:26:53,075 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:26:53,093 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:26:53,094 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:26:53,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:26:53 BoogieIcfgContainer [2021-11-23 17:26:53,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:26:53,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:26:53,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:26:53,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:26:53,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:26:50" (1/3) ... [2021-11-23 17:26:53,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c65d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:26:53, skipping insertion in model container [2021-11-23 17:26:53,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:50" (2/3) ... [2021-11-23 17:26:53,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c65d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:26:53, skipping insertion in model container [2021-11-23 17:26:53,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:26:53" (3/3) ... [2021-11-23 17:26:53,111 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label06.c [2021-11-23 17:26:53,118 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:26:53,118 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:26:53,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:26:53,226 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 17:26:53,226 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:26:53,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 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 17:26:53,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 17:26:53,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:26:53,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:26:53,299 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:26:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:26:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1439061899, now seen corresponding path program 1 times [2021-11-23 17:26:53,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:26:53,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290530050] [2021-11-23 17:26:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:26:53,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:26:53,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:26:53,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:26:53,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:26:53,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:26:53,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 17:26:53,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:26:59,644 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 17:26:59,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:26:59,645 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:26:59,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290530050] [2021-11-23 17:26:59,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290530050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:26:59,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:26:59,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 17:26:59,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406884517] [2021-11-23 17:26:59,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:26:59,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 17:26:59,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:26:59,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 17:26:59,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 17:26:59,722 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 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 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:27:02,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:02,738 INFO L93 Difference]: Finished difference Result 813 states and 1442 transitions. [2021-11-23 17:27:02,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 17:27:02,742 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-23 17:27:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:02,775 INFO L225 Difference]: With dead ends: 813 [2021-11-23 17:27:02,775 INFO L226 Difference]: Without dead ends: 510 [2021-11-23 17:27:02,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:27:02,790 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 548 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 1845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:02,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 294 Invalid, 1845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 17:27:02,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-23 17:27:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 505. [2021-11-23 17:27:02,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 504 states have (on average 1.25) internal successors, (630), 504 states have internal predecessors, (630), 0 states have call successors, (0), 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 17:27:02,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 630 transitions. [2021-11-23 17:27:02,889 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 630 transitions. Word has length 140 [2021-11-23 17:27:02,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:02,894 INFO L470 AbstractCegarLoop]: Abstraction has 505 states and 630 transitions. [2021-11-23 17:27:02,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.555555555555555) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 17:27:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 630 transitions. [2021-11-23 17:27:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-23 17:27:02,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:02,916 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:02,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:27:03,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:03,122 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:03,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:03,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2046676736, now seen corresponding path program 1 times [2021-11-23 17:27:03,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:03,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830703050] [2021-11-23 17:27:03,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:03,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:03,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:03,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:03,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:27:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:03,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 17:27:03,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:27:07,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:07,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:07,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830703050] [2021-11-23 17:27:07,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830703050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:07,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:07,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 17:27:07,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050207344] [2021-11-23 17:27:07,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:07,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 17:27:07,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:07,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 17:27:07,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:27:07,875 INFO L87 Difference]: Start difference. First operand 505 states and 630 transitions. Second operand has 10 states, 10 states have (on average 14.5) internal successors, (145), 9 states have internal predecessors, (145), 0 states have call successors, (0), 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 17:27:10,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:10,267 INFO L93 Difference]: Finished difference Result 1516 states and 2008 transitions. [2021-11-23 17:27:10,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 17:27:10,268 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 9 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2021-11-23 17:27:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:10,276 INFO L225 Difference]: With dead ends: 1516 [2021-11-23 17:27:10,276 INFO L226 Difference]: Without dead ends: 799 [2021-11-23 17:27:10,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:27:10,280 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 594 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 1899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:10,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [594 Valid, 195 Invalid, 1899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-23 17:27:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2021-11-23 17:27:10,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 799. [2021-11-23 17:27:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 798 states have (on average 1.2468671679197996) internal successors, (995), 798 states have internal predecessors, (995), 0 states have call successors, (0), 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 17:27:10,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 995 transitions. [2021-11-23 17:27:10,336 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 995 transitions. Word has length 145 [2021-11-23 17:27:10,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:10,337 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 995 transitions. [2021-11-23 17:27:10,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.5) internal successors, (145), 9 states have internal predecessors, (145), 0 states have call successors, (0), 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 17:27:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 995 transitions. [2021-11-23 17:27:10,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-23 17:27:10,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:10,344 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:10,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:10,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:10,563 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:10,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:10,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1509932513, now seen corresponding path program 1 times [2021-11-23 17:27:10,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:10,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52688336] [2021-11-23 17:27:10,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:10,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:10,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:10,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:10,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:27:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:10,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:27:10,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:10,979 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:27:10,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:10,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:10,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52688336] [2021-11-23 17:27:10,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52688336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:10,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:10,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:27:10,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475590562] [2021-11-23 17:27:10,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:10,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:10,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:10,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:10,984 INFO L87 Difference]: Start difference. First operand 799 states and 995 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 17:27:11,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:11,778 INFO L93 Difference]: Finished difference Result 2020 states and 2560 transitions. [2021-11-23 17:27:11,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:11,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 153 [2021-11-23 17:27:11,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:11,788 INFO L225 Difference]: With dead ends: 2020 [2021-11-23 17:27:11,788 INFO L226 Difference]: Without dead ends: 1223 [2021-11-23 17:27:11,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 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 17:27:11,792 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 144 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:11,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 259 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:27:11,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-23 17:27:11,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1219. [2021-11-23 17:27:11,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1218 states have (on average 1.1888341543513958) internal successors, (1448), 1218 states have internal predecessors, (1448), 0 states have call successors, (0), 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 17:27:11,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1448 transitions. [2021-11-23 17:27:11,839 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1448 transitions. Word has length 153 [2021-11-23 17:27:11,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:11,840 INFO L470 AbstractCegarLoop]: Abstraction has 1219 states and 1448 transitions. [2021-11-23 17:27:11,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 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 17:27:11,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1448 transitions. [2021-11-23 17:27:11,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-23 17:27:11,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:11,846 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:11,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:12,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:12,060 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:12,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:12,062 INFO L85 PathProgramCache]: Analyzing trace with hash 580648511, now seen corresponding path program 1 times [2021-11-23 17:27:12,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:12,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63767438] [2021-11-23 17:27:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:12,067 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:12,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:12,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:12,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:27:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:12,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:27:12,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:12,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 17:27:12,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:12,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:12,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63767438] [2021-11-23 17:27:12,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63767438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:12,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:12,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:27:12,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835662485] [2021-11-23 17:27:12,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:12,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:12,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:12,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:12,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:12,465 INFO L87 Difference]: Start difference. First operand 1219 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 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 17:27:13,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:13,250 INFO L93 Difference]: Finished difference Result 2856 states and 3366 transitions. [2021-11-23 17:27:13,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:13,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 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 157 [2021-11-23 17:27:13,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:13,259 INFO L225 Difference]: With dead ends: 2856 [2021-11-23 17:27:13,260 INFO L226 Difference]: Without dead ends: 1217 [2021-11-23 17:27:13,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 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 17:27:13,264 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 189 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:13,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [189 Valid, 78 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:27:13,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2021-11-23 17:27:13,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1217. [2021-11-23 17:27:13,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1216 states have (on average 1.1348684210526316) internal successors, (1380), 1216 states have internal predecessors, (1380), 0 states have call successors, (0), 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 17:27:13,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1380 transitions. [2021-11-23 17:27:13,306 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1380 transitions. Word has length 157 [2021-11-23 17:27:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:13,306 INFO L470 AbstractCegarLoop]: Abstraction has 1217 states and 1380 transitions. [2021-11-23 17:27:13,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 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 17:27:13,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1380 transitions. [2021-11-23 17:27:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-23 17:27:13,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:13,312 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:13,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:13,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:13,526 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:13,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1117946297, now seen corresponding path program 1 times [2021-11-23 17:27:13,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:13,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611444976] [2021-11-23 17:27:13,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:13,531 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:13,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:13,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:13,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:27:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:13,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:27:13,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:13,949 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 17:27:13,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:13,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:13,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611444976] [2021-11-23 17:27:13,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611444976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:13,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:13,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:27:13,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339419967] [2021-11-23 17:27:13,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:13,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:13,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:13,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:13,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:13,962 INFO L87 Difference]: Start difference. First operand 1217 states and 1380 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 17:27:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:14,700 INFO L93 Difference]: Finished difference Result 2276 states and 2592 transitions. [2021-11-23 17:27:14,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 174 [2021-11-23 17:27:14,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:14,707 INFO L225 Difference]: With dead ends: 2276 [2021-11-23 17:27:14,707 INFO L226 Difference]: Without dead ends: 780 [2021-11-23 17:27:14,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 172 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 17:27:14,712 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 151 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:14,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 238 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:27:14,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2021-11-23 17:27:14,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2021-11-23 17:27:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 779 states have (on average 1.0937098844672657) internal successors, (852), 779 states have internal predecessors, (852), 0 states have call successors, (0), 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 17:27:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 852 transitions. [2021-11-23 17:27:14,740 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 852 transitions. Word has length 174 [2021-11-23 17:27:14,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:14,741 INFO L470 AbstractCegarLoop]: Abstraction has 780 states and 852 transitions. [2021-11-23 17:27:14,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 17:27:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 852 transitions. [2021-11-23 17:27:14,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-23 17:27:14,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:14,745 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:14,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:14,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:14,969 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:14,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:14,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1036798851, now seen corresponding path program 1 times [2021-11-23 17:27:14,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:14,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292644616] [2021-11-23 17:27:14,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:14,971 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:14,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:14,972 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:14,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:27:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:15,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 17:27:15,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:17,182 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:27:17,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:17,183 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:17,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292644616] [2021-11-23 17:27:17,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292644616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:17,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:17,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:27:17,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173121489] [2021-11-23 17:27:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:17,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:27:17,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:27:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:27:17,186 INFO L87 Difference]: Start difference. First operand 780 states and 852 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 17:27:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:18,409 INFO L93 Difference]: Finished difference Result 2341 states and 2577 transitions. [2021-11-23 17:27:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:27:18,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2021-11-23 17:27:18,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:18,420 INFO L225 Difference]: With dead ends: 2341 [2021-11-23 17:27:18,420 INFO L226 Difference]: Without dead ends: 1338 [2021-11-23 17:27:18,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:27:18,427 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 288 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:18,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [288 Valid, 91 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 17:27:18,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2021-11-23 17:27:18,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 778. [2021-11-23 17:27:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 777 states have (on average 1.0797940797940797) internal successors, (839), 777 states have internal predecessors, (839), 0 states have call successors, (0), 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 17:27:18,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 839 transitions. [2021-11-23 17:27:18,459 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 839 transitions. Word has length 174 [2021-11-23 17:27:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:18,459 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 839 transitions. [2021-11-23 17:27:18,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 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 17:27:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 839 transitions. [2021-11-23 17:27:18,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-23 17:27:18,464 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:18,464 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:18,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:18,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:18,687 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1949008489, now seen corresponding path program 1 times [2021-11-23 17:27:18,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:18,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553551228] [2021-11-23 17:27:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:18,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:18,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:18,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:18,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 17:27:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:18,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:27:18,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:19,147 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:27:19,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:19,148 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:19,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553551228] [2021-11-23 17:27:19,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [553551228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:19,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:19,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:27:19,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067528922] [2021-11-23 17:27:19,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:19,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:19,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:19,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:19,151 INFO L87 Difference]: Start difference. First operand 778 states and 839 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 17:27:19,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:19,593 INFO L93 Difference]: Finished difference Result 2121 states and 2297 transitions. [2021-11-23 17:27:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:19,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2021-11-23 17:27:19,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:19,601 INFO L225 Difference]: With dead ends: 2121 [2021-11-23 17:27:19,601 INFO L226 Difference]: Without dead ends: 1205 [2021-11-23 17:27:19,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 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 17:27:19,604 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 132 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:19,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 129 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:27:19,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1205 states. [2021-11-23 17:27:19,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1205 to 1201. [2021-11-23 17:27:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1200 states have (on average 1.0633333333333332) internal successors, (1276), 1200 states have internal predecessors, (1276), 0 states have call successors, (0), 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 17:27:19,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 1276 transitions. [2021-11-23 17:27:19,645 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 1276 transitions. Word has length 180 [2021-11-23 17:27:19,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:19,645 INFO L470 AbstractCegarLoop]: Abstraction has 1201 states and 1276 transitions. [2021-11-23 17:27:19,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 17:27:19,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 1276 transitions. [2021-11-23 17:27:19,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-23 17:27:19,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:19,652 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:19,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:19,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:19,864 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:19,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:19,864 INFO L85 PathProgramCache]: Analyzing trace with hash 287206733, now seen corresponding path program 1 times [2021-11-23 17:27:19,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:19,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [182074369] [2021-11-23 17:27:19,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:19,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:19,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:19,867 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:19,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 17:27:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:19,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:27:19,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:20,415 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-23 17:27:20,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:20,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:20,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [182074369] [2021-11-23 17:27:20,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [182074369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:20,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:20,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:27:20,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32882044] [2021-11-23 17:27:20,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:20,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:20,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:20,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:20,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:20,419 INFO L87 Difference]: Start difference. First operand 1201 states and 1276 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 17:27:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:21,049 INFO L93 Difference]: Finished difference Result 2821 states and 3004 transitions. [2021-11-23 17:27:21,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:21,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 268 [2021-11-23 17:27:21,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:21,057 INFO L225 Difference]: With dead ends: 2821 [2021-11-23 17:27:21,057 INFO L226 Difference]: Without dead ends: 1479 [2021-11-23 17:27:21,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 266 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 17:27:21,060 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 117 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:21,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 129 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 17:27:21,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2021-11-23 17:27:21,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1479. [2021-11-23 17:27:21,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 1478 states have (on average 1.0548037889039241) internal successors, (1559), 1478 states have internal predecessors, (1559), 0 states have call successors, (0), 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 17:27:21,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 1559 transitions. [2021-11-23 17:27:21,101 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 1559 transitions. Word has length 268 [2021-11-23 17:27:21,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:21,102 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 1559 transitions. [2021-11-23 17:27:21,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 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 17:27:21,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 1559 transitions. [2021-11-23 17:27:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-23 17:27:21,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:21,110 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:21,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:21,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:21,326 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:21,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:21,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1285312662, now seen corresponding path program 1 times [2021-11-23 17:27:21,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:21,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273369222] [2021-11-23 17:27:21,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:21,328 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:21,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:21,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 17:27:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:21,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:27:21,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:27:22,186 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:22,186 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:22,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273369222] [2021-11-23 17:27:22,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273369222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:22,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:22,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 17:27:22,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616428686] [2021-11-23 17:27:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:22,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:27:22,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:27:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:27:22,189 INFO L87 Difference]: Start difference. First operand 1479 states and 1559 transitions. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 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 17:27:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:23,041 INFO L93 Difference]: Finished difference Result 3099 states and 3274 transitions. [2021-11-23 17:27:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:27:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 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 291 [2021-11-23 17:27:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:23,049 INFO L225 Difference]: With dead ends: 3099 [2021-11-23 17:27:23,050 INFO L226 Difference]: Without dead ends: 1328 [2021-11-23 17:27:23,052 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:27:23,054 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 204 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:23,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 252 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 17:27:23,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2021-11-23 17:27:23,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1325. [2021-11-23 17:27:23,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1324 states have (on average 1.040785498489426) internal successors, (1378), 1324 states have internal predecessors, (1378), 0 states have call successors, (0), 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 17:27:23,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1378 transitions. [2021-11-23 17:27:23,093 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1378 transitions. Word has length 291 [2021-11-23 17:27:23,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:23,094 INFO L470 AbstractCegarLoop]: Abstraction has 1325 states and 1378 transitions. [2021-11-23 17:27:23,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 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 17:27:23,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1378 transitions. [2021-11-23 17:27:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-23 17:27:23,103 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:23,104 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:23,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:23,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:23,319 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:23,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:23,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1217205327, now seen corresponding path program 1 times [2021-11-23 17:27:23,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:23,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542101815] [2021-11-23 17:27:23,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:23,321 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:23,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:23,322 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:23,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 17:27:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:23,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 17:27:23,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 303 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-23 17:27:25,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:25,919 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:25,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1542101815] [2021-11-23 17:27:25,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1542101815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:25,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:25,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 17:27:25,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964641056] [2021-11-23 17:27:25,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:25,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 17:27:25,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:25,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 17:27:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:27:25,921 INFO L87 Difference]: Start difference. First operand 1325 states and 1378 transitions. Second operand has 10 states, 10 states have (on average 29.1) internal successors, (291), 9 states have internal predecessors, (291), 0 states have call successors, (0), 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 17:27:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:26,648 INFO L93 Difference]: Finished difference Result 3101 states and 3230 transitions. [2021-11-23 17:27:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 17:27:26,651 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 29.1) internal successors, (291), 9 states have internal predecessors, (291), 0 states have call successors, (0), 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 326 [2021-11-23 17:27:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:26,662 INFO L225 Difference]: With dead ends: 3101 [2021-11-23 17:27:26,662 INFO L226 Difference]: Without dead ends: 1772 [2021-11-23 17:27:26,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:27:26,665 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 235 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:26,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 58 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:27:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2021-11-23 17:27:26,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2021-11-23 17:27:26,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1771 states have (on average 1.0412196499153021) internal successors, (1844), 1771 states have internal predecessors, (1844), 0 states have call successors, (0), 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 17:27:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 1844 transitions. [2021-11-23 17:27:26,718 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 1844 transitions. Word has length 326 [2021-11-23 17:27:26,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:26,719 INFO L470 AbstractCegarLoop]: Abstraction has 1772 states and 1844 transitions. [2021-11-23 17:27:26,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 29.1) internal successors, (291), 9 states have internal predecessors, (291), 0 states have call successors, (0), 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 17:27:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 1844 transitions. [2021-11-23 17:27:26,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-23 17:27:26,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:26,726 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:26,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:26,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:26,941 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:26,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:26,942 INFO L85 PathProgramCache]: Analyzing trace with hash 495955641, now seen corresponding path program 1 times [2021-11-23 17:27:26,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:26,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010481831] [2021-11-23 17:27:26,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:26,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:26,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:26,946 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:26,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 17:27:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:27,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:27:27,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-23 17:27:27,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:27,911 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:27,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010481831] [2021-11-23 17:27:27,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010481831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:27,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:27,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:27:27,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184468829] [2021-11-23 17:27:27,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:27,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:27,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:27,914 INFO L87 Difference]: Start difference. First operand 1772 states and 1844 transitions. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 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 17:27:28,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:28,377 INFO L93 Difference]: Finished difference Result 3541 states and 3690 transitions. [2021-11-23 17:27:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:28,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 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 343 [2021-11-23 17:27:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:28,385 INFO L225 Difference]: With dead ends: 3541 [2021-11-23 17:27:28,386 INFO L226 Difference]: Without dead ends: 1771 [2021-11-23 17:27:28,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 341 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 17:27:28,389 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 77 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:28,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77 Valid, 195 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:27:28,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1771 states. [2021-11-23 17:27:28,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1771 to 1630. [2021-11-23 17:27:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1629 states have (on average 1.0380601596071208) internal successors, (1691), 1629 states have internal predecessors, (1691), 0 states have call successors, (0), 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 17:27:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 1691 transitions. [2021-11-23 17:27:28,434 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 1691 transitions. Word has length 343 [2021-11-23 17:27:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:28,434 INFO L470 AbstractCegarLoop]: Abstraction has 1630 states and 1691 transitions. [2021-11-23 17:27:28,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 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 17:27:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 1691 transitions. [2021-11-23 17:27:28,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-23 17:27:28,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:27:28,441 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:27:28,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:28,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:28,667 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:27:28,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:27:28,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1889946957, now seen corresponding path program 1 times [2021-11-23 17:27:28,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:27:28,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719420546] [2021-11-23 17:27:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:27:28,671 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:27:28,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:27:28,672 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:27:28,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 17:27:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:27:28,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:27:28,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:27:29,372 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2021-11-23 17:27:29,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:27:29,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:27:29,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719420546] [2021-11-23 17:27:29,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719420546] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:27:29,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:27:29,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:27:29,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766198406] [2021-11-23 17:27:29,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:27:29,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:27:29,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:27:29,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:27:29,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:27:29,376 INFO L87 Difference]: Start difference. First operand 1630 states and 1691 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 17:27:29,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:27:29,807 INFO L93 Difference]: Finished difference Result 2120 states and 2193 transitions. [2021-11-23 17:27:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:27:29,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 367 [2021-11-23 17:27:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:27:29,810 INFO L225 Difference]: With dead ends: 2120 [2021-11-23 17:27:29,810 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:27:29,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 365 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 17:27:29,814 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 122 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:27:29,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 165 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:27:29,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:27:29,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:27:29,816 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 17:27:29,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:27:29,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 367 [2021-11-23 17:27:29,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:27:29,817 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:27:29,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 17:27:29,818 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:27:29,818 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:27:29,821 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:27:29,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-23 17:27:30,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:27:30,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:27:30,785 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,785 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,787 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,787 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-11-23 17:27:30,787 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-11-23 17:27:30,787 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-11-23 17:27:30,787 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-11-23 17:27:30,787 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-11-23 17:27:30,788 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-11-23 17:27:30,788 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-11-23 17:27:30,788 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-11-23 17:27:30,788 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,788 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,788 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,789 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-11-23 17:27:30,789 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-11-23 17:27:30,789 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-11-23 17:27:30,789 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-11-23 17:27:30,789 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-11-23 17:27:30,789 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,790 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,790 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,790 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-11-23 17:27:30,790 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-11-23 17:27:30,790 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-11-23 17:27:30,790 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-11-23 17:27:30,791 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-11-23 17:27:30,791 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-11-23 17:27:30,791 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-11-23 17:27:30,791 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-11-23 17:27:30,791 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-11-23 17:27:30,791 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-11-23 17:27:30,792 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,792 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,792 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,792 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-11-23 17:27:30,792 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-11-23 17:27:30,792 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-11-23 17:27:30,793 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-11-23 17:27:30,793 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-11-23 17:27:30,793 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-11-23 17:27:30,793 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-11-23 17:27:30,793 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,794 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,794 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,794 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-11-23 17:27:30,794 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-11-23 17:27:30,794 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-11-23 17:27:30,794 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-11-23 17:27:30,795 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-11-23 17:27:30,795 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-11-23 17:27:30,795 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-11-23 17:27:30,795 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,795 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,795 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,796 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-11-23 17:27:30,796 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-11-23 17:27:30,796 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-11-23 17:27:30,796 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-11-23 17:27:30,796 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-11-23 17:27:30,796 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,797 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,797 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,797 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-11-23 17:27:30,797 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-11-23 17:27:30,797 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-11-23 17:27:30,797 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-11-23 17:27:30,798 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-11-23 17:27:30,798 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-11-23 17:27:30,798 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-11-23 17:27:30,798 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-11-23 17:27:30,798 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,798 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,799 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,799 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-11-23 17:27:30,799 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:27:30,799 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-11-23 17:27:30,799 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-11-23 17:27:30,799 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-11-23 17:27:30,800 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,801 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,802 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-11-23 17:27:30,802 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-11-23 17:27:30,802 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-11-23 17:27:30,802 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-11-23 17:27:30,802 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-11-23 17:27:30,802 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-11-23 17:27:30,803 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:27:30,803 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2021-11-23 17:27:30,803 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,803 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,803 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,803 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-11-23 17:27:30,804 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-11-23 17:27:30,804 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-11-23 17:27:30,804 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-11-23 17:27:30,804 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-11-23 17:27:30,804 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-11-23 17:27:30,804 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-11-23 17:27:30,805 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-11-23 17:27:30,805 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,805 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,805 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,805 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-11-23 17:27:30,805 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-11-23 17:27:30,806 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-11-23 17:27:30,806 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-11-23 17:27:30,806 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-11-23 17:27:30,806 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,806 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,806 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,807 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-11-23 17:27:30,807 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-11-23 17:27:30,807 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-11-23 17:27:30,807 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-11-23 17:27:30,807 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-11-23 17:27:30,807 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-11-23 17:27:30,808 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-11-23 17:27:30,808 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-11-23 17:27:30,808 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-11-23 17:27:30,808 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-11-23 17:27:30,808 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-11-23 17:27:30,808 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,809 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,809 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-11-23 17:27:30,809 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-11-23 17:27:30,809 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-11-23 17:27:30,809 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-11-23 17:27:30,809 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-11-23 17:27:30,810 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-11-23 17:27:30,810 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-11-23 17:27:30,810 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-11-23 17:27:30,810 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-11-23 17:27:30,810 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse11 (= (_ bv1 32) ~a21~0))) (let ((.cse0 (= (_ bv1 32) ~a19~0)) (.cse7 (not .cse11))) (let ((.cse6 (= (_ bv10 32) ~a28~0)) (.cse1 (= (_ bv0 32) ~a25~0)) (.cse2 (= (_ bv0 32) ~a11~0)) (.cse9 (= (_ bv5 32) |ULTIMATE.start_calculate_output_~input#1|)) (.cse10 (= (_ bv3 32) |ULTIMATE.start_calculate_output_~input#1|)) (.cse3 (= (_ bv8 32) ~a17~0)) (.cse8 (or (not .cse0) .cse7)) (.cse4 (= (_ bv1 32) ~a11~0)) (.cse5 (= (_ bv1 32) ~a25~0))) (or (and .cse0 .cse1 .cse2 (= ~a28~0 (_ bv9 32)) .cse3) (and .cse4 .cse3) (and .cse5 .cse6 .cse2) (and .cse0 .cse7) (and .cse4 (= (_ bv11 32) ~a28~0)) (and .cse5 .cse0 .cse2) (and (= (_ bv8 32) ~a28~0) .cse1 .cse2 .cse8) (and .cse0 .cse6 .cse2 (or (= (_ bv1 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|) .cse9 .cse10 (= (_ bv6 32) |ULTIMATE.start_calculate_output_~input#1|)) .cse3) (and (= (_ bv0 32) ~a19~0) (= (_ bv7 32) ~a28~0) .cse1 .cse2 (or .cse9 .cse10) .cse11 .cse3) (and .cse4 .cse8) (and (= (_ bv7 32) ~a17~0) .cse4 .cse5))))) [2021-11-23 17:27:30,811 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,811 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,811 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-11-23 17:27:30,811 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-11-23 17:27:30,811 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-11-23 17:27:30,812 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-11-23 17:27:30,812 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-11-23 17:27:30,812 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-11-23 17:27:30,812 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-11-23 17:27:30,812 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,812 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-11-23 17:27:30,813 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-11-23 17:27:30,814 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-11-23 17:27:30,814 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-11-23 17:27:30,814 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,814 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,814 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-11-23 17:27:30,814 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-11-23 17:27:30,815 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-11-23 17:27:30,815 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-11-23 17:27:30,815 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:27:30,815 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-23 17:27:30,815 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-11-23 17:27:30,816 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse12 (= (_ bv1 32) ~a21~0))) (let ((.cse1 (= (_ bv1 32) ~a19~0)) (.cse8 (not .cse12))) (let ((.cse7 (= (_ bv10 32) ~a28~0)) (.cse0 (= (_ bv7 32) ~a28~0)) (.cse2 (= (_ bv0 32) ~a25~0)) (.cse3 (= (_ bv0 32) ~a11~0)) (.cse10 (= (_ bv5 32) |ULTIMATE.start_calculate_output_~input#1|)) (.cse11 (= (_ bv3 32) |ULTIMATE.start_calculate_output_~input#1|)) (.cse4 (= (_ bv8 32) ~a17~0)) (.cse9 (or (not .cse1) .cse8)) (.cse5 (= (_ bv1 32) ~a11~0)) (.cse6 (= (_ bv1 32) ~a25~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse1 .cse2 .cse3 (= ~a28~0 (_ bv9 32)) .cse4) (and .cse5 .cse4) (and .cse6 .cse7 .cse3) (and .cse1 .cse8) (and .cse5 (= (_ bv11 32) ~a28~0)) (and .cse6 .cse1 .cse3) (and (= (_ bv8 32) ~a28~0) .cse2 .cse3 .cse9) (and .cse1 .cse7 .cse3 (or (= (_ bv1 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|) .cse10 .cse11 (= (_ bv6 32) |ULTIMATE.start_calculate_output_~input#1|)) .cse4) (and (= (_ bv0 32) ~a19~0) .cse0 .cse2 .cse3 (or .cse10 .cse11) .cse12 .cse4) (and .cse5 .cse9) (and (= (_ bv7 32) ~a17~0) .cse5 .cse6))))) [2021-11-23 17:27:30,816 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,816 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,816 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-11-23 17:27:30,816 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-11-23 17:27:30,816 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-11-23 17:27:30,817 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-11-23 17:27:30,817 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-11-23 17:27:30,817 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,817 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,817 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-11-23 17:27:30,817 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-11-23 17:27:30,818 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-11-23 17:27:30,818 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-11-23 17:27:30,818 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-11-23 17:27:30,818 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-11-23 17:27:30,818 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-11-23 17:27:30,818 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:27:30,819 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-11-23 17:27:30,820 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-11-23 17:27:30,820 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-11-23 17:27:30,820 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-11-23 17:27:30,820 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-11-23 17:27:30,820 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-11-23 17:27:30,820 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-11-23 17:27:30,821 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-11-23 17:27:30,822 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,822 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,822 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:27:30,822 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-11-23 17:27:30,822 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-11-23 17:27:30,822 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-11-23 17:27:30,823 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-11-23 17:27:30,823 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-11-23 17:27:30,823 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-11-23 17:27:30,827 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:27:30,829 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:27:30,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:27:30 BoogieIcfgContainer [2021-11-23 17:27:30,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:27:30,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:27:30,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:27:30,859 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:27:30,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:26:53" (3/4) ... [2021-11-23 17:27:30,863 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:27:30,886 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 17:27:30,887 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 17:27:30,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:27:30,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:27:31,020 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:27:31,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:27:31,021 INFO L158 Benchmark]: Toolchain (without parser) took 40924.60ms. Allocated memory was 50.3MB in the beginning and 174.1MB in the end (delta: 123.7MB). Free memory was 24.7MB in the beginning and 56.6MB in the end (delta: -31.9MB). Peak memory consumption was 92.4MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,022 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 50.3MB. Free memory is still 30.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:27:31,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 897.77ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 24.5MB in the beginning and 46.7MB in the end (delta: -22.1MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,023 INFO L158 Benchmark]: Boogie Procedure Inliner took 163.00ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 41.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,023 INFO L158 Benchmark]: Boogie Preprocessor took 138.85ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 36.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,024 INFO L158 Benchmark]: RCFGBuilder took 1797.84ms. Allocated memory is still 67.1MB. Free memory was 36.7MB in the beginning and 26.3MB in the end (delta: 10.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,024 INFO L158 Benchmark]: TraceAbstraction took 37755.99ms. Allocated memory was 67.1MB in the beginning and 174.1MB in the end (delta: 107.0MB). Free memory was 26.0MB in the beginning and 71.3MB in the end (delta: -45.3MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,025 INFO L158 Benchmark]: Witness Printer took 161.94ms. Allocated memory is still 174.1MB. Free memory was 71.3MB in the beginning and 56.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:27:31,028 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 50.3MB. Free memory is still 30.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 897.77ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 24.5MB in the beginning and 46.7MB in the end (delta: -22.1MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 163.00ms. Allocated memory is still 67.1MB. Free memory was 46.7MB in the beginning and 41.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 138.85ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 36.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1797.84ms. Allocated memory is still 67.1MB. Free memory was 36.7MB in the beginning and 26.3MB in the end (delta: 10.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 37755.99ms. Allocated memory was 67.1MB in the beginning and 174.1MB in the end (delta: 107.0MB). Free memory was 26.0MB in the beginning and 71.3MB in the end (delta: -45.3MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. * Witness Printer took 161.94ms. Allocated memory is still 174.1MB. Free memory was 71.3MB in the beginning and 56.6MB in the end (delta: 14.7MB). 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: 602]: 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, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.6s, OverallIterations: 12, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2801 SdHoareTripleChecker+Valid, 11.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2801 mSDsluCounter, 2083 SdHoareTripleChecker+Invalid, 9.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 452 mSDsCounter, 843 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7837 IncrementalHoareTripleChecker+Invalid, 8680 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 843 mSolverCounterUnsat, 1631 mSDtfsCounter, 7837 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2709 GetRequests, 2671 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1772occurred in iteration=10, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 717 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 52 NumberOfFragments, 329 HoareAnnotationTreeSize, 3 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1092 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 18.9s InterpolantComputationTime, 2718 NumberOfCodeBlocks, 2718 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2706 ConstructedInterpolants, 0 QuantifiedInterpolants, 14131 SizeOfPredicates, 16 NumberOfNonLiveVariables, 3502 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 1913/1913 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: 616]: Loop Invariant Derived loop invariant: ((((((((((((((7bv32 == a28 && 1bv32 == a19) && 0bv32 == a25) && 0bv32 == a11) && 8bv32 == a17) || ((((1bv32 == a19 && 0bv32 == a25) && 0bv32 == a11) && a28 == 9bv32) && 8bv32 == a17)) || (1bv32 == a11 && 8bv32 == a17)) || ((1bv32 == a25 && 10bv32 == a28) && 0bv32 == a11)) || (1bv32 == a19 && !(1bv32 == a21))) || (1bv32 == a11 && 11bv32 == a28)) || ((1bv32 == a25 && 1bv32 == a19) && 0bv32 == a11)) || (((8bv32 == a28 && 0bv32 == a25) && 0bv32 == a11) && (!(1bv32 == a19) || !(1bv32 == a21)))) || ((((1bv32 == a19 && 10bv32 == a28) && 0bv32 == a11) && ((((1bv32 == input || 4bv32 == input) || 5bv32 == input) || 3bv32 == input) || 6bv32 == input)) && 8bv32 == a17)) || ((((((0bv32 == a19 && 7bv32 == a28) && 0bv32 == a25) && 0bv32 == a11) && (5bv32 == input || 3bv32 == input)) && 1bv32 == a21) && 8bv32 == a17)) || (1bv32 == a11 && (!(1bv32 == a19) || !(1bv32 == a21)))) || ((7bv32 == a17 && 1bv32 == a11) && 1bv32 == a25) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((1bv32 == a19 && 0bv32 == a25) && 0bv32 == a11) && a28 == 9bv32) && 8bv32 == a17) || (1bv32 == a11 && 8bv32 == a17)) || ((1bv32 == a25 && 10bv32 == a28) && 0bv32 == a11)) || (1bv32 == a19 && !(1bv32 == a21))) || (1bv32 == a11 && 11bv32 == a28)) || ((1bv32 == a25 && 1bv32 == a19) && 0bv32 == a11)) || (((8bv32 == a28 && 0bv32 == a25) && 0bv32 == a11) && (!(1bv32 == a19) || !(1bv32 == a21)))) || ((((1bv32 == a19 && 10bv32 == a28) && 0bv32 == a11) && ((((1bv32 == input || 4bv32 == input) || 5bv32 == input) || 3bv32 == input) || 6bv32 == input)) && 8bv32 == a17)) || ((((((0bv32 == a19 && 7bv32 == a28) && 0bv32 == a25) && 0bv32 == a11) && (5bv32 == input || 3bv32 == input)) && 1bv32 == a21) && 8bv32 == a17)) || (1bv32 == a11 && (!(1bv32 == a19) || !(1bv32 == a21)))) || ((7bv32 == a17 && 1bv32 == a11) && 1bv32 == a25) RESULT: Ultimate proved your program to be correct! [2021-11-23 17:27:31,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a02af1c8-0782-40aa-b39d-d1006dbf7b67/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