./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8 --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 7f5206a7e4e942d454725b9f342ce661ec086ef2 ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8 --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 7f5206a7e4e942d454725b9f342ce661ec086ef2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:15:29,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:15:29,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:15:29,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:15:29,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:15:29,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:15:29,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:15:29,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:15:29,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:15:29,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:15:29,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:15:29,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:15:29,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:15:29,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:15:29,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:15:29,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:15:29,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:15:29,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:15:29,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:15:29,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:15:29,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:15:29,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:15:29,634 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:15:29,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:15:29,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:15:29,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:15:29,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:15:29,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:15:29,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:15:29,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:15:29,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:15:29,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:15:29,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:15:29,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:15:29,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:15:29,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:15:29,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:15:29,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:15:29,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:15:29,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:15:29,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:15:29,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:15:29,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:15:29,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:15:29,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:15:29,719 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:15:29,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:15:29,720 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:15:29,720 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:15:29,720 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:15:29,721 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:15:29,721 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:15:29,722 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:15:29,723 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:15:29,723 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:15:29,724 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:15:29,724 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:15:29,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:15:29,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:15:29,726 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:15:29,726 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:15:29,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:15:29,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:15:29,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:15:29,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:15:29,727 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:15:29,728 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:15:29,728 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:15:29,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:15:29,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:15:29,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:15:29,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:15:29,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:15:29,732 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:15:29,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:15:29,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:15:29,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:15:29,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:15:29,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:15:29,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:15:29,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:15:29,734 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_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f5206a7e4e942d454725b9f342ce661ec086ef2 [2021-10-13 07:15:30,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:15:30,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:15:30,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:15:30,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:15:30,127 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:15:30,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-10-13 07:15:30,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/4938767b7/af7a1f01674a4108b128578e8ffe3c7e/FLAGfeecc90d6 [2021-10-13 07:15:30,953 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:15:30,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-10-13 07:15:30,968 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/4938767b7/af7a1f01674a4108b128578e8ffe3c7e/FLAGfeecc90d6 [2021-10-13 07:15:31,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/4938767b7/af7a1f01674a4108b128578e8ffe3c7e [2021-10-13 07:15:31,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:15:31,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:15:31,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:15:31,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:15:31,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:15:31,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:31,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a18a0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31, skipping insertion in model container [2021-10-13 07:15:31,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:31,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:15:31,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:15:31,689 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-10-13 07:15:31,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:15:31,717 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:15:31,849 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-10-13 07:15:31,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:15:31,889 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:15:31,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31 WrapperNode [2021-10-13 07:15:31,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:15:31,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:15:31,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:15:31,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:15:31,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:31,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:15:32,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:15:32,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:15:32,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:15:32,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:15:32,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:15:32,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:15:32,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:15:32,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (1/1) ... [2021-10-13 07:15:32,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:15:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:15:32,238 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:15:32,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 07:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-13 07:15:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:15:32,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:15:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:15:33,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:15:33,628 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 07:15:33,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:33 BoogieIcfgContainer [2021-10-13 07:15:33,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:15:33,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:15:33,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:15:33,639 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:15:33,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:15:31" (1/3) ... [2021-10-13 07:15:33,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbf5732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:15:33, skipping insertion in model container [2021-10-13 07:15:33,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:15:31" (2/3) ... [2021-10-13 07:15:33,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dbf5732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:15:33, skipping insertion in model container [2021-10-13 07:15:33,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:15:33" (3/3) ... [2021-10-13 07:15:33,643 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2021-10-13 07:15:33,649 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:15:33,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:15:33,695 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:15:33,701 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:15:33,701 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:15:33,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-13 07:15:33,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:33,726 INFO L512 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] [2021-10-13 07:15:33,727 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:33,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:33,734 INFO L82 PathProgramCache]: Analyzing trace with hash -352673803, now seen corresponding path program 1 times [2021-10-13 07:15:33,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:15:33,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618279903] [2021-10-13 07:15:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:33,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:15:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:34,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:34,854 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:15:34,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618279903] [2021-10-13 07:15:34,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618279903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:15:34,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:15:34,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-10-13 07:15:34,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146725655] [2021-10-13 07:15:34,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 07:15:34,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:15:34,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 07:15:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:15:34,896 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.934782608695652) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 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 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:35,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:15:35,858 INFO L93 Difference]: Finished difference Result 81 states and 115 transitions. [2021-10-13 07:15:35,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 07:15:35,860 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 0 states have call successors, (0), 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 43 [2021-10-13 07:15:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:15:35,872 INFO L225 Difference]: With dead ends: 81 [2021-10-13 07:15:35,872 INFO L226 Difference]: Without dead ends: 52 [2021-10-13 07:15:35,877 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 374.5ms TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-13 07:15:35,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-13 07:15:35,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2021-10-13 07:15:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.0208333333333333) internal successors, (49), 48 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-10-13 07:15:35,919 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2021-10-13 07:15:35,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:15:35,920 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-10-13 07:15:35,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:15:35,920 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-10-13 07:15:35,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 07:15:35,922 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:15:35,922 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-13 07:15:35,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:15:35,923 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:15:35,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:15:35,924 INFO L82 PathProgramCache]: Analyzing trace with hash -530558132, now seen corresponding path program 1 times [2021-10-13 07:15:35,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:15:35,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763984978] [2021-10-13 07:15:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:35,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:15:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:36,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:36,481 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:15:36,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763984978] [2021-10-13 07:15:36,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763984978] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:15:36,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981586552] [2021-10-13 07:15:36,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:15:36,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:15:36,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:15:36,484 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:15:36,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:15:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:15:36,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 07:15:36,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:15:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:37,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:15:38,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:15:38,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981586552] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:15:38,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262436652] [2021-10-13 07:15:38,208 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2021-10-13 07:15:38,208 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:15:38,214 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:15:38,221 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:15:38,222 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:15:38,352 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:38,360 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:15:38,362 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:38,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-13 07:15:38,372 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:15:38,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:38,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 543 [2021-10-13 07:15:38,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 883 [2021-10-13 07:15:38,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:38,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:38,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:39,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:39,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:40,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:40,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:40,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:41,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:41,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:41,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:41,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:42,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:43,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:43,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:44,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:45,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:45,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:46,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:15:50,759 INFO L244 Elim1Store]: Index analysis took 5462 ms [2021-10-13 07:15:54,597 INFO L354 Elim1Store]: treesize reduction 4038, result has 1.8 percent of original size [2021-10-13 07:15:54,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 16 select indices, 16 select index equivalence classes, 20 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 147 case distinctions, treesize of input 603 treesize of output 602 [2021-10-13 07:15:54,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:54,681 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 554 [2021-10-13 07:15:54,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:54,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 554 [2021-10-13 07:15:54,762 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:15:54,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:15:55,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:55,100 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:15:55,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 891 [2021-10-13 07:15:55,219 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:15:55,220 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:880, output treesize:891 [2021-10-13 07:15:55,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:15:55,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:15:55,436 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_28| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2021-10-13 07:15:55,440 INFO L168 Benchmark]: Toolchain (without parser) took 24190.97 ms. Allocated memory was 104.9 MB in the beginning and 186.6 MB in the end (delta: 81.8 MB). Free memory was 71.4 MB in the beginning and 146.3 MB in the end (delta: -74.9 MB). Peak memory consumption was 106.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:55,441 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory is still 59.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:15:55,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.52 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 68.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:55,443 INFO L168 Benchmark]: Boogie Procedure Inliner took 158.34 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 64.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:55,443 INFO L168 Benchmark]: Boogie Preprocessor took 135.29 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 59.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:55,444 INFO L168 Benchmark]: RCFGBuilder took 1433.70 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 59.9 MB in the beginning and 88.8 MB in the end (delta: -28.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:55,453 INFO L168 Benchmark]: TraceAbstraction took 21805.25 ms. Allocated memory was 142.6 MB in the beginning and 186.6 MB in the end (delta: 44.0 MB). Free memory was 87.7 MB in the beginning and 146.3 MB in the end (delta: -58.6 MB). Peak memory consumption was 86.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:15:55,459 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 104.9 MB. Free memory is still 59.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 636.52 ms. Allocated memory is still 104.9 MB. Free memory was 71.2 MB in the beginning and 68.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 158.34 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 64.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.29 ms. Allocated memory is still 104.9 MB. Free memory was 64.1 MB in the beginning and 59.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1433.70 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 59.9 MB in the beginning and 88.8 MB in the end (delta: -28.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21805.25 ms. Allocated memory was 142.6 MB in the beginning and 186.6 MB in the end (delta: 44.0 MB). Free memory was 87.7 MB in the beginning and 146.3 MB in the end (delta: -58.6 MB). Peak memory consumption was 86.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_28| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_28|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:15:55,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:15:58,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:15:58,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:15:58,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:15:58,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:15:58,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:15:58,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:15:58,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:15:58,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:15:58,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:15:58,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:15:58,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:15:58,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:15:58,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:15:58,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:15:58,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:15:58,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:15:58,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:15:58,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:15:58,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:15:58,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:15:58,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:15:58,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:15:58,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:15:58,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:15:58,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:15:58,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:15:58,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:15:58,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:15:58,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:15:58,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:15:58,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:15:58,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:15:58,546 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:15:58,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:15:58,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:15:58,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:15:58,550 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:15:58,550 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:15:58,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:15:58,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:15:58,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:15:58,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:15:58,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:15:58,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:15:58,623 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:15:58,624 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:15:58,624 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:15:58,624 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:15:58,625 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:15:58,625 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:15:58,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:15:58,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:15:58,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:15:58,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:15:58,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:15:58,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:15:58,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:15:58,630 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:15:58,631 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:15:58,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:15:58,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:15:58,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:15:58,632 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:15:58,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:15:58,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:15:58,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:15:58,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:15:58,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:15:58,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:15:58,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:15:58,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:15:58,635 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:15:58,635 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:15:58,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:15:58,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:15:58,636 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:15:58,636 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_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f5206a7e4e942d454725b9f342ce661ec086ef2 [2021-10-13 07:15:59,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:15:59,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:15:59,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:15:59,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:15:59,121 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:15:59,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-10-13 07:15:59,207 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/ec763c9e9/db0679ceeb31499d992b9df4141f0b70/FLAG180b12159 [2021-10-13 07:15:59,852 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:15:59,853 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2021-10-13 07:15:59,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/ec763c9e9/db0679ceeb31499d992b9df4141f0b70/FLAG180b12159 [2021-10-13 07:16:00,086 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/data/ec763c9e9/db0679ceeb31499d992b9df4141f0b70 [2021-10-13 07:16:00,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:16:00,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:16:00,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:16:00,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:16:00,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:16:00,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35641aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00, skipping insertion in model container [2021-10-13 07:16:00,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,120 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:16:00,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:16:00,459 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-10-13 07:16:00,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:16:00,535 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:16:00,669 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2021-10-13 07:16:00,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:16:00,697 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:16:00,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00 WrapperNode [2021-10-13 07:16:00,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:16:00,699 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:16:00,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:16:00,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:16:00,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:16:00,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:16:00,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:16:00,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:16:00,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:16:00,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:16:00,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:16:00,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:16:00,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (1/1) ... [2021-10-13 07:16:00,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:16:00,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:16:00,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:16:01,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:16:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-13 07:16:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2021-10-13 07:16:01,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:16:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-10-13 07:16:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:16:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:16:01,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:16:01,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:16:01,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:16:02,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:16:02,680 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 07:16:02,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:02 BoogieIcfgContainer [2021-10-13 07:16:02,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:16:02,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:16:02,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:16:02,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:16:02,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:16:00" (1/3) ... [2021-10-13 07:16:02,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe0928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:02, skipping insertion in model container [2021-10-13 07:16:02,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:00" (2/3) ... [2021-10-13 07:16:02,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ebe0928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:16:02, skipping insertion in model container [2021-10-13 07:16:02,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:02" (3/3) ... [2021-10-13 07:16:02,701 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2021-10-13 07:16:02,708 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:16:02,708 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:16:02,767 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:16:02,775 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:16:02,775 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:16:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 49 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:02,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-13 07:16:02,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:16:02,802 INFO L512 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] [2021-10-13 07:16:02,803 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:16:02,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:16:02,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1997100867, now seen corresponding path program 1 times [2021-10-13 07:16:02,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:16:02,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135506685] [2021-10-13 07:16:02,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:16:02,829 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:16:02,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:16:02,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:16:02,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:16:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:16:03,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:16:03,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:16:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:03,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:16:04,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:04,524 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:16:04,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135506685] [2021-10-13 07:16:04,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135506685] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:16:04,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:16:04,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 24 [2021-10-13 07:16:04,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951681413] [2021-10-13 07:16:04,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 07:16:04,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:16:04,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 07:16:04,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2021-10-13 07:16:04,551 INFO L87 Difference]: Start difference. First operand has 50 states, 48 states have (on average 1.8958333333333333) internal successors, (91), 49 states have internal predecessors, (91), 0 states have call successors, (0), 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 24 states, 24 states have (on average 3.5) internal successors, (84), 24 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:08,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:16:08,080 INFO L93 Difference]: Finished difference Result 174 states and 238 transitions. [2021-10-13 07:16:08,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 07:16:08,083 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5) internal successors, (84), 24 states have internal predecessors, (84), 0 states have call successors, (0), 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 44 [2021-10-13 07:16:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:16:08,095 INFO L225 Difference]: With dead ends: 174 [2021-10-13 07:16:08,095 INFO L226 Difference]: Without dead ends: 102 [2021-10-13 07:16:08,099 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1852.5ms TimeCoverageRelationStatistics Valid=567, Invalid=1503, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 07:16:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-13 07:16:08,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2021-10-13 07:16:08,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 99 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:08,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2021-10-13 07:16:08,163 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 44 [2021-10-13 07:16:08,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:16:08,164 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2021-10-13 07:16:08,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.5) internal successors, (84), 24 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2021-10-13 07:16:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-10-13 07:16:08,174 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:16:08,174 INFO L512 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:16:08,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:16:08,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:16:08,390 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:16:08,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:16:08,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1988570532, now seen corresponding path program 1 times [2021-10-13 07:16:08,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:16:08,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092659364] [2021-10-13 07:16:08,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:16:08,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:16:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:16:08,395 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:16:08,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:16:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:16:08,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 07:16:08,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:16:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:09,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:16:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:11,850 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:16:11,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092659364] [2021-10-13 07:16:11,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092659364] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:16:11,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1337651258] [2021-10-13 07:16:11,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:16:11,852 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:16:11,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:16:11,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:16:11,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-13 07:16:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:16:13,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 07:16:13,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:16:13,623 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:13,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:16:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:14,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1337651258] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:16:14,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811818823] [2021-10-13 07:16:14,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:16:14,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:16:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:16:14,124 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:16:14,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 07:16:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:16:14,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 07:16:14,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:16:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:15,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:16:19,044 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:19,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811818823] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:16:19,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:16:19,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24, 24, 25, 26] total 68 [2021-10-13 07:16:19,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285646031] [2021-10-13 07:16:19,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-10-13 07:16:19,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:16:19,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-10-13 07:16:19,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1271, Invalid=3285, Unknown=0, NotChecked=0, Total=4556 [2021-10-13 07:16:19,055 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand has 68 states, 68 states have (on average 4.220588235294118) internal successors, (287), 68 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:28,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:16:28,711 INFO L93 Difference]: Finished difference Result 215 states and 236 transitions. [2021-10-13 07:16:28,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-13 07:16:28,712 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 4.220588235294118) internal successors, (287), 68 states have internal predecessors, (287), 0 states have call successors, (0), 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 99 [2021-10-13 07:16:28,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:16:28,717 INFO L225 Difference]: With dead ends: 215 [2021-10-13 07:16:28,717 INFO L226 Difference]: Without dead ends: 212 [2021-10-13 07:16:28,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 632 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 8903.6ms TimeCoverageRelationStatistics Valid=3571, Invalid=8861, Unknown=0, NotChecked=0, Total=12432 [2021-10-13 07:16:28,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-13 07:16:28,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2021-10-13 07:16:28,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 209 states have (on average 1.0047846889952152) internal successors, (210), 209 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2021-10-13 07:16:28,752 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 99 [2021-10-13 07:16:28,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:16:28,753 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2021-10-13 07:16:28,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 4.220588235294118) internal successors, (287), 68 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:16:28,754 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2021-10-13 07:16:28,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-10-13 07:16:28,766 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:16:28,766 INFO L512 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:16:28,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:16:29,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-13 07:16:29,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:16:29,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:16:29,381 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:16:29,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:16:29,381 INFO L82 PathProgramCache]: Analyzing trace with hash -203406972, now seen corresponding path program 2 times [2021-10-13 07:16:29,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:16:29,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [678529047] [2021-10-13 07:16:29,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:16:29,384 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:16:29,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:16:29,386 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:16:29,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:16:35,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:16:35,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:16:35,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-13 07:16:35,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:16:41,254 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:16:41,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 10 [2021-10-13 07:16:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:41,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:16:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:16:53,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:16:53,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [678529047] [2021-10-13 07:16:53,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [678529047] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:16:53,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1579030304] [2021-10-13 07:16:53,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:16:53,486 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:16:53,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:16:53,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:16:53,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 07:17:01,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:17:01,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:17:01,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 07:17:01,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:17:04,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 07:17:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:04,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:17:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:06,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1579030304] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:17:06,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118129001] [2021-10-13 07:17:06,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:17:06,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:17:06,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:17:06,776 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:17:06,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 07:17:08,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:17:08,940 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:17:08,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-13 07:17:08,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:17:11,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-13 07:17:11,922 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:11,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:17:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:33,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118129001] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:17:33,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:17:33,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46, 46, 46, 47] total 133 [2021-10-13 07:17:33,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768979890] [2021-10-13 07:17:33,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2021-10-13 07:17:33,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:17:33,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2021-10-13 07:17:33,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1254, Invalid=16302, Unknown=0, NotChecked=0, Total=17556 [2021-10-13 07:17:33,573 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand has 133 states, 133 states have (on average 4.601503759398496) internal successors, (612), 133 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:18:06,697 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2021-10-13 07:18:06,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-13 07:18:06,698 INFO L78 Accepts]: Start accepts. Automaton has has 133 states, 133 states have (on average 4.601503759398496) internal successors, (612), 133 states have internal predecessors, (612), 0 states have call successors, (0), 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 209 [2021-10-13 07:18:06,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:18:06,701 INFO L225 Difference]: With dead ends: 212 [2021-10-13 07:18:06,701 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:18:06,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1250 GetRequests, 1117 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2837 ImplicationChecksByTransitivity, 32017.7ms TimeCoverageRelationStatistics Valid=1355, Invalid=16735, Unknown=0, NotChecked=0, Total=18090 [2021-10-13 07:18:06,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:18:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:18:06,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:06,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:18:06,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 209 [2021-10-13 07:18:06,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:18:06,711 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:18:06,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 133 states have (on average 4.601503759398496) internal successors, (612), 133 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:06,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:18:06,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:18:06,716 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:18:06,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:18:06,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:18:07,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-10-13 07:18:07,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:18:07,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:18:07,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:18:07,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:18:08,976 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 604) no Hoare annotation was computed. [2021-10-13 07:18:08,977 INFO L857 garLoopResultBuilder]: For program point L192(lines 192 622) no Hoare annotation was computed. [2021-10-13 07:18:08,978 INFO L853 garLoopResultBuilder]: At program point L448(lines 408 481) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| (_ bv0 32))) (.cse1 (bvult ~Id_MCDC_93~0 (_ bv42 32))) (.cse2 (= (select (select |#memory_int| |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (bvadd |ULTIMATE.start_main_~#Id_MCDC_89__Id_MCDC_95~0.offset| (_ bv492 32))) (_ bv0 32)))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv11 32)) .cse2) (and (= (_ bv33 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv35 32)) .cse0 .cse1 .cse2) (and .cse0 (= (_ bv17 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv10 32)) .cse2 (= ~Id_MCDC_93~0 (_ bv9 32))) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv13 32)) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv29 32)) .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv22 32)) .cse1 .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv30 32)) .cse2) (and .cse0 (= ~Id_MCDC_93~0 (_ bv20 32)) (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv21 32)) .cse2) (and (= (_ bv16 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv9 32)) .cse1 .cse2) (and (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv40 32)) .cse0 .cse1 .cse2) (and (= (_ bv34 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv15 32)) .cse2) (and .cse0 (= (_ bv25 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv27 32)) .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv23 32)) .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv20 32)) .cse1 .cse2) (and (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv28 32)) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv41 32)) .cse1 .cse2) (and (= (_ bv36 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and (= (_ bv14 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= (_ bv18 32) ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv24 32)) .cse1 .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv39 32)) .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv37 32)) .cse1 .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv12 32)) .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv32 32)) .cse1 .cse2) (and (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv19 32)) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv38 32)) .cse1 .cse2) (and .cse0 .cse1 (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv31 32)) .cse2) (and (= ULTIMATE.start_main_~Id_MCDC_89__Id_MCDC_96~0 (_ bv26 32)) .cse0 .cse1 .cse2))) [2021-10-13 07:18:08,978 INFO L857 garLoopResultBuilder]: For program point L184(lines 184 628) no Hoare annotation was computed. [2021-10-13 07:18:08,978 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 453) no Hoare annotation was computed. [2021-10-13 07:18:08,978 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 485) no Hoare annotation was computed. [2021-10-13 07:18:08,979 INFO L857 garLoopResultBuilder]: For program point L374(lines 374 503) no Hoare annotation was computed. [2021-10-13 07:18:08,979 INFO L857 garLoopResultBuilder]: For program point L465(lines 465 473) no Hoare annotation was computed. [2021-10-13 07:18:08,979 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 509) no Hoare annotation was computed. [2021-10-13 07:18:08,979 INFO L857 garLoopResultBuilder]: For program point L234(lines 234 599) no Hoare annotation was computed. [2021-10-13 07:18:08,980 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:18:08,980 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:18:08,980 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 587) no Hoare annotation was computed. [2021-10-13 07:18:08,980 INFO L857 garLoopResultBuilder]: For program point L218(lines 218 605) no Hoare annotation was computed. [2021-10-13 07:18:08,980 INFO L857 garLoopResultBuilder]: For program point L210(lines 210 611) no Hoare annotation was computed. [2021-10-13 07:18:08,981 INFO L857 garLoopResultBuilder]: For program point L433(lines 433 454) no Hoare annotation was computed. [2021-10-13 07:18:08,986 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 486) no Hoare annotation was computed. [2021-10-13 07:18:08,987 INFO L857 garLoopResultBuilder]: For program point L425(lines 425 475) no Hoare annotation was computed. [2021-10-13 07:18:08,987 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 492) no Hoare annotation was computed. [2021-10-13 07:18:08,987 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 582) no Hoare annotation was computed. [2021-10-13 07:18:08,987 INFO L860 garLoopResultBuilder]: At program point L632(lines 136 636) the Hoare annotation is: true [2021-10-13 07:18:08,988 INFO L857 garLoopResultBuilder]: For program point L277(lines 277 570) no Hoare annotation was computed. [2021-10-13 07:18:08,988 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 588) no Hoare annotation was computed. [2021-10-13 07:18:08,988 INFO L857 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-10-13 07:18:08,988 INFO L857 garLoopResultBuilder]: For program point L236(lines 236 594) no Hoare annotation was computed. [2021-10-13 07:18:08,988 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 565) no Hoare annotation was computed. [2021-10-13 07:18:08,989 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 553) no Hoare annotation was computed. [2021-10-13 07:18:08,989 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 571) no Hoare annotation was computed. [2021-10-13 07:18:08,989 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 577) no Hoare annotation was computed. [2021-10-13 07:18:08,989 INFO L857 garLoopResultBuilder]: For program point L312(lines 312 548) no Hoare annotation was computed. [2021-10-13 07:18:08,990 INFO L857 garLoopResultBuilder]: For program point L329(lines 329 536) no Hoare annotation was computed. [2021-10-13 07:18:08,990 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 554) no Hoare annotation was computed. [2021-10-13 07:18:08,990 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 635) no Hoare annotation was computed. [2021-10-13 07:18:08,990 INFO L857 garLoopResultBuilder]: For program point L288(lines 288 560) no Hoare annotation was computed. [2021-10-13 07:18:08,990 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:18:08,991 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) no Hoare annotation was computed. [2021-10-13 07:18:08,991 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 531) no Hoare annotation was computed. [2021-10-13 07:18:08,991 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 519) no Hoare annotation was computed. [2021-10-13 07:18:08,991 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 537) no Hoare annotation was computed. [2021-10-13 07:18:08,992 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:18:08,992 INFO L857 garLoopResultBuilder]: For program point L314(lines 314 543) no Hoare annotation was computed. [2021-10-13 07:18:08,992 INFO L857 garLoopResultBuilder]: For program point L182(lines 182 633) no Hoare annotation was computed. [2021-10-13 07:18:08,992 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 514) no Hoare annotation was computed. [2021-10-13 07:18:08,992 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 621) no Hoare annotation was computed. [2021-10-13 07:18:08,993 INFO L857 garLoopResultBuilder]: For program point L381(lines 381 502) no Hoare annotation was computed. [2021-10-13 07:18:08,993 INFO L857 garLoopResultBuilder]: For program point L348(lines 348 520) no Hoare annotation was computed. [2021-10-13 07:18:08,993 INFO L857 garLoopResultBuilder]: For program point L340(lines 340 526) no Hoare annotation was computed. [2021-10-13 07:18:08,993 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 616) no Hoare annotation was computed. [2021-10-13 07:18:08,994 INFO L857 garLoopResultBuilder]: For program point L423(lines 423 480) no Hoare annotation was computed. [2021-10-13 07:18:08,994 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 497) no Hoare annotation was computed. [2021-10-13 07:18:08,999 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:18:09,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:18:09 BoogieIcfgContainer [2021-10-13 07:18:09,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:18:09,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:18:09,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:18:09,077 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:18:09,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:16:02" (3/4) ... [2021-10-13 07:18:09,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:18:09,116 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-10-13 07:18:09,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 07:18:09,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:18:09,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 07:18:09,126 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:18:09,572 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:18:09,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:18:09,574 INFO L168 Benchmark]: Toolchain (without parser) took 129473.92 ms. Allocated memory was 62.9 MB in the beginning and 130.0 MB in the end (delta: 67.1 MB). Free memory was 44.9 MB in the beginning and 53.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 90.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,574 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:18:09,575 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.50 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 37.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.08 ms. Allocated memory is still 62.9 MB. Free memory was 37.9 MB in the beginning and 33.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,576 INFO L168 Benchmark]: Boogie Preprocessor took 86.03 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 28.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,577 INFO L168 Benchmark]: RCFGBuilder took 1745.87 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 28.3 MB in the beginning and 39.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,578 INFO L168 Benchmark]: TraceAbstraction took 126382.64 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 65.9 MB in the beginning and 32.7 MB in the end (delta: 33.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,578 INFO L168 Benchmark]: Witness Printer took 496.45 ms. Allocated memory is still 130.0 MB. Free memory was 32.6 MB in the beginning and 53.6 MB in the end (delta: -21.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:18:09,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 44.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 597.50 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 37.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 150.08 ms. Allocated memory is still 62.9 MB. Free memory was 37.9 MB in the beginning and 33.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.03 ms. Allocated memory is still 62.9 MB. Free memory was 33.1 MB in the beginning and 28.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1745.87 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 28.3 MB in the beginning and 39.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 126382.64 ms. Allocated memory was 88.1 MB in the beginning and 130.0 MB in the end (delta: 41.9 MB). Free memory was 65.9 MB in the beginning and 32.7 MB in the end (delta: 33.2 MB). Peak memory consumption was 84.9 MB. Max. memory is 16.1 GB. * Witness Printer took 496.45 ms. Allocated memory is still 130.0 MB. Free memory was 32.6 MB in the beginning and 53.6 MB in the end (delta: -21.0 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 467]: 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, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 126233.7ms, OverallIterations: 3, TraceHistogramMax: 34, EmptinessCheckTime: 34.1ms, AutomataDifference: 46372.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1633.3ms, InitialAbstractionConstructionTime: 13.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 141 SDtfs, 3700 SDslu, 6123 SDs, 0 SdLazy, 11415 SolverSat, 1292 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 36194.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1990 GetRequests, 1703 SyntacticMatches, 0 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4432 ImplicationChecksByTransitivity, 42773.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=210occurred in iteration=2, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 74.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 57 NumberOfFragments, 629 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 258.0ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 244 FormulaSimplificationTreeSizeReductionInter, 1368.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 658.9ms SsaConstructionTime, 15628.6ms SatisfiabilityAnalysisTime, 57684.3ms InterpolantComputationTime, 968 NumberOfCodeBlocks, 968 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1922 ConstructedInterpolants, 0 QuantifiedInterpolants, 21440 SizeOfPredicates, 31 NumberOfNonLiveVariables, 5334 ConjunctsInSsa, 234 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 594/18282 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: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 11bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32) || (((33bv32 == Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_96 == 35bv32 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && 17bv32 == Id_MCDC_89__Id_MCDC_96) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 10bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32) && Id_MCDC_93 == 9bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 13bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 29bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 22bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 30bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_93 == 20bv32) && Id_MCDC_89__Id_MCDC_96 == 21bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((16bv32 == Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 9bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_96 == 40bv32 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((34bv32 == Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 15bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && 25bv32 == Id_MCDC_89__Id_MCDC_96) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 27bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 23bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 20bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_96 == 28bv32 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 41bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((36bv32 == Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((14bv32 == Id_MCDC_89__Id_MCDC_96 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32) && 18bv32 == Id_MCDC_89__Id_MCDC_96)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 24bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 39bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 37bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 12bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 32bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_96 == 19bv32 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && Id_MCDC_89__Id_MCDC_96 == 38bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_95 == 0bv32 && ~bvult32(Id_MCDC_93, 42bv32)) && Id_MCDC_89__Id_MCDC_96 == 31bv32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32)) || (((Id_MCDC_89__Id_MCDC_96 == 26bv32 && Id_MCDC_89__Id_MCDC_95 == 0bv32) && ~bvult32(Id_MCDC_93, 42bv32)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][~bvadd64(Id_MCDC_89__Id_MCDC_95, 492bv32)] == 0bv32) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:18:09,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9187829d-876b-4e3a-a5bd-bffb86331f4f/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...