./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW --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 64bit --witnessprinter.graph.data.programhash e717dbaa7c87680e2898e20401e6a0e780331d7eabb7d7391b67acb5da3c5ec1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:42:10,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:42:10,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:42:10,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:42:10,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:42:10,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:42:10,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:42:10,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:42:10,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:42:10,673 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:42:10,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:42:10,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:42:10,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:42:10,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:42:10,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:42:10,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:42:10,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:42:10,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:42:10,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:42:10,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:42:10,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:42:10,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:42:10,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:42:10,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:42:10,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:42:10,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:42:10,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:42:10,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:42:10,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:42:10,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:42:10,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:42:10,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:42:10,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:42:10,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:42:10,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:42:10,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:42:10,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:42:10,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:42:10,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:42:10,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:42:10,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:42:10,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 15:42:10,755 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:42:10,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:42:10,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:42:10,756 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:42:10,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:42:10,757 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:42:10,758 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:42:10,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:42:10,758 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:42:10,758 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:42:10,759 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:42:10,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:42:10,759 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:42:10,760 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:42:10,760 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:42:10,760 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:42:10,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:42:10,760 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:42:10,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:42:10,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:42:10,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:42:10,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:42:10,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:42:10,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:42:10,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:42:10,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:42:10,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:42:10,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:42:10,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:42:10,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:10,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:42:10,764 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:42:10,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:42:10,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:42:10,764 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:42:10,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:42:10,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:42:10,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:42:10,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e717dbaa7c87680e2898e20401e6a0e780331d7eabb7d7391b67acb5da3c5ec1 [2022-11-23 15:42:11,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:42:11,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:42:11,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:42:11,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:42:11,103 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:42:11,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2022-11-23 15:42:14,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:42:14,552 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:42:14,552 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2022-11-23 15:42:14,561 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data/75757a2f7/0ddb992b5ad344dbbfc4f163a4c755c9/FLAG535007941 [2022-11-23 15:42:14,573 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data/75757a2f7/0ddb992b5ad344dbbfc4f163a4c755c9 [2022-11-23 15:42:14,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:42:14,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:42:14,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:14,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:42:14,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:42:14,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:14" (1/1) ... [2022-11-23 15:42:14,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d31ca6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:14, skipping insertion in model container [2022-11-23 15:42:14,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:14" (1/1) ... [2022-11-23 15:42:14,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:42:14,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:42:14,779 WARN L237 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_e8e155d6-b134-474f-b2c7-d7c376ed94a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c[1107,1120] [2022-11-23 15:42:14,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:14,965 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:42:14,981 WARN L237 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_e8e155d6-b134-474f-b2c7-d7c376ed94a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c[1107,1120] [2022-11-23 15:42:15,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:15,090 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:42:15,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15 WrapperNode [2022-11-23 15:42:15,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:15,099 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:15,099 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:42:15,099 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:42:15,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,134 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,213 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 742 [2022-11-23 15:42:15,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:15,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:42:15,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:42:15,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:42:15,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:42:15,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:42:15,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:42:15,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:42:15,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (1/1) ... [2022-11-23 15:42:15,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:15,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:42:15,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:42:15,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:42:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:42:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:42:15,696 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:42:15,704 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:42:20,763 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:42:20,795 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:42:20,795 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:42:20,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:20 BoogieIcfgContainer [2022-11-23 15:42:20,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:42:20,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:42:20,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:42:20,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:42:20,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:14" (1/3) ... [2022-11-23 15:42:20,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d0944f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:20, skipping insertion in model container [2022-11-23 15:42:20,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:15" (2/3) ... [2022-11-23 15:42:20,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d0944f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:20, skipping insertion in model container [2022-11-23 15:42:20,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:20" (3/3) ... [2022-11-23 15:42:20,813 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2022-11-23 15:42:20,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:42:20,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:42:20,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:42:20,904 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18711b44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:42:20,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:42:20,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-23 15:42:20,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 15:42:20,918 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:20,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 15:42:20,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:42:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:20,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 15:42:20,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:42:20,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138381873] [2022-11-23 15:42:20,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:20,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:42:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:42:21,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:42:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:42:21,454 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:42:21,456 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:42:21,458 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:42:21,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:42:21,465 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:42:21,470 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:42:21,500 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 15:42:21,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:42:21 BoogieIcfgContainer [2022-11-23 15:42:21,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:42:21,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:42:21,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:42:21,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:42:21,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:20" (3/4) ... [2022-11-23 15:42:21,523 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:42:21,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:42:21,524 INFO L158 Benchmark]: Toolchain (without parser) took 6946.98ms. Allocated memory was 134.2MB in the beginning and 272.6MB in the end (delta: 138.4MB). Free memory was 103.4MB in the beginning and 129.3MB in the end (delta: -25.9MB). Peak memory consumption was 113.7MB. Max. memory is 16.1GB. [2022-11-23 15:42:21,525 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:42:21,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.53ms. Allocated memory is still 134.2MB. Free memory was 103.4MB in the beginning and 76.3MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 15:42:21,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 125.88ms. Allocated memory is still 134.2MB. Free memory was 76.3MB in the beginning and 69.5MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:42:21,533 INFO L158 Benchmark]: Boogie Preprocessor took 95.74ms. Allocated memory is still 134.2MB. Free memory was 69.5MB in the beginning and 65.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:42:21,540 INFO L158 Benchmark]: RCFGBuilder took 5475.79ms. Allocated memory was 134.2MB in the beginning and 272.6MB in the end (delta: 138.4MB). Free memory was 65.3MB in the beginning and 169.2MB in the end (delta: -103.9MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. [2022-11-23 15:42:21,542 INFO L158 Benchmark]: TraceAbstraction took 717.01ms. Allocated memory is still 272.6MB. Free memory was 168.1MB in the beginning and 130.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-23 15:42:21,543 INFO L158 Benchmark]: Witness Printer took 4.68ms. Allocated memory is still 272.6MB. Free memory was 130.4MB in the beginning and 129.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:42:21,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.53ms. Allocated memory is still 134.2MB. Free memory was 103.4MB in the beginning and 76.3MB in the end (delta: 27.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 125.88ms. Allocated memory is still 134.2MB. Free memory was 76.3MB in the beginning and 69.5MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.74ms. Allocated memory is still 134.2MB. Free memory was 69.5MB in the beginning and 65.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 5475.79ms. Allocated memory was 134.2MB in the beginning and 272.6MB in the end (delta: 138.4MB). Free memory was 65.3MB in the beginning and 169.2MB in the end (delta: -103.9MB). Peak memory consumption was 135.2MB. Max. memory is 16.1GB. * TraceAbstraction took 717.01ms. Allocated memory is still 272.6MB. Free memory was 168.1MB in the beginning and 130.4MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.68ms. Allocated memory is still 272.6MB. Free memory was 130.4MB in the beginning and 129.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 233, overapproximation of bitwiseOr at line 219, overapproximation of bitwiseAnd at line 197. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 8); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (8 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 5); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (5 - 1); [L37] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 6); [L38] const SORT_45 msb_SORT_45 = (SORT_45)1 << (6 - 1); [L40] const SORT_55 mask_SORT_55 = (SORT_55)-1 >> (sizeof(SORT_55) * 8 - 32); [L41] const SORT_55 msb_SORT_55 = (SORT_55)1 << (32 - 1); [L43] const SORT_61 mask_SORT_61 = (SORT_61)-1 >> (sizeof(SORT_61) * 8 - 25); [L44] const SORT_61 msb_SORT_61 = (SORT_61)1 << (25 - 1); [L46] const SORT_63 mask_SORT_63 = (SORT_63)-1 >> (sizeof(SORT_63) * 8 - 7); [L47] const SORT_63 msb_SORT_63 = (SORT_63)1 << (7 - 1); [L49] const SORT_84 mask_SORT_84 = (SORT_84)-1 >> (sizeof(SORT_84) * 8 - 2); [L50] const SORT_84 msb_SORT_84 = (SORT_84)1 << (2 - 1); [L52] const SORT_122 mask_SORT_122 = (SORT_122)-1 >> (sizeof(SORT_122) * 8 - 3); [L53] const SORT_122 msb_SORT_122 = (SORT_122)1 << (3 - 1); [L55] const SORT_1 var_17 = 0; [L56] const SORT_1 var_41 = 1; [L57] const SORT_45 var_46 = 0; [L58] const SORT_5 var_50 = 0; [L59] const SORT_5 var_56 = 2; [L60] const SORT_55 var_58 = 2; [L61] const SORT_61 var_62 = 0; [L62] const SORT_55 var_66 = 1; [L63] const SORT_55 var_112 = 0; [L64] const SORT_45 var_218 = 33; [L65] const SORT_5 var_227 = 1; [L67] SORT_1 input_2; [L68] SORT_3 input_4; [L69] SORT_5 input_6; [L70] SORT_7 input_8; [L71] SORT_1 input_9; [L72] SORT_1 input_10; [L73] SORT_1 input_11; [L74] SORT_1 input_12; [L75] SORT_7 input_13; [L76] SORT_1 input_14; [L77] SORT_1 input_15; [L78] SORT_1 input_16; [L79] SORT_84 input_85; [L80] SORT_1 input_87; [L81] SORT_1 input_89; [L82] SORT_1 input_91; [L83] SORT_1 input_99; [L84] SORT_1 input_105; [L85] SORT_1 input_134; [L86] SORT_1 input_149; [L87] SORT_7 input_162; [L88] SORT_1 input_164; [L89] SORT_3 input_166; [L90] SORT_5 input_168; [L91] SORT_1 input_179; [L93] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L101] SORT_5 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L102] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_76 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_136 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_138 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_144 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_151 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_170 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_172 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_181 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_183 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 init_19_arg_1 = var_17; [L126] state_18 = init_19_arg_1 [L127] SORT_1 init_21_arg_1 = var_17; [L128] state_20 = init_21_arg_1 [L129] SORT_1 init_24_arg_1 = var_17; [L130] state_23 = init_24_arg_1 [L131] SORT_1 init_27_arg_1 = var_17; [L132] state_26 = init_27_arg_1 [L133] SORT_1 init_30_arg_1 = var_17; [L134] state_29 = init_30_arg_1 [L135] SORT_1 init_33_arg_1 = var_17; [L136] state_32 = init_33_arg_1 [L137] SORT_1 init_37_arg_1 = var_17; [L138] state_36 = init_37_arg_1 [L139] SORT_45 init_48_arg_1 = var_46; [L140] state_47 = init_48_arg_1 [L141] SORT_5 init_52_arg_1 = var_50; [L142] state_51 = init_52_arg_1 [L143] SORT_1 init_71_arg_1 = var_17; [L144] state_70 = init_71_arg_1 [L145] SORT_1 init_77_arg_1 = var_17; [L146] state_76 = init_77_arg_1 [L147] SORT_1 init_81_arg_1 = var_17; [L148] state_80 = init_81_arg_1 [L149] SORT_1 init_83_arg_1 = var_17; [L150] state_82 = init_83_arg_1 [L151] SORT_1 init_94_arg_1 = var_17; [L152] state_93 = init_94_arg_1 [L153] SORT_1 init_96_arg_1 = var_17; [L154] state_95 = init_96_arg_1 [L155] SORT_1 init_98_arg_1 = var_17; [L156] state_97 = init_98_arg_1 [L157] SORT_1 init_102_arg_1 = var_17; [L158] state_101 = init_102_arg_1 [L159] SORT_1 init_104_arg_1 = var_17; [L160] state_103 = init_104_arg_1 [L161] SORT_1 init_108_arg_1 = var_17; [L162] state_107 = init_108_arg_1 [L163] SORT_1 init_137_arg_1 = var_17; [L164] state_136 = init_137_arg_1 [L165] SORT_1 init_139_arg_1 = var_17; [L166] state_138 = init_139_arg_1 [L167] SORT_1 init_141_arg_1 = var_17; [L168] state_140 = init_141_arg_1 [L169] SORT_1 init_143_arg_1 = var_17; [L170] state_142 = init_143_arg_1 [L171] SORT_1 init_145_arg_1 = var_17; [L172] state_144 = init_145_arg_1 [L173] SORT_1 init_152_arg_1 = var_17; [L174] state_151 = init_152_arg_1 [L175] SORT_1 init_154_arg_1 = var_17; [L176] state_153 = init_154_arg_1 [L177] SORT_1 init_171_arg_1 = var_17; [L178] state_170 = init_171_arg_1 [L179] SORT_1 init_173_arg_1 = var_17; [L180] state_172 = init_173_arg_1 [L181] SORT_1 init_182_arg_1 = var_17; [L182] state_181 = init_182_arg_1 [L183] SORT_1 init_184_arg_1 = var_17; [L184] state_183 = init_184_arg_1 [L185] SORT_1 init_186_arg_1 = var_17; [L186] state_185 = init_186_arg_1 VAL [init_102_arg_1=0, init_104_arg_1=0, init_108_arg_1=0, init_137_arg_1=0, init_139_arg_1=0, init_141_arg_1=0, init_143_arg_1=0, init_145_arg_1=0, init_152_arg_1=0, init_154_arg_1=0, init_171_arg_1=0, init_173_arg_1=0, init_182_arg_1=0, init_184_arg_1=0, init_186_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_27_arg_1=0, init_30_arg_1=0, init_33_arg_1=0, init_37_arg_1=0, init_48_arg_1=0, init_52_arg_1=0, init_71_arg_1=0, init_77_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, mask_SORT_1=1, mask_SORT_122=7, mask_SORT_3=65535, mask_SORT_45=63, mask_SORT_5=255, mask_SORT_55=4294967295, mask_SORT_61=4294967295, mask_SORT_63=127, mask_SORT_7=31, mask_SORT_84=3, msb_SORT_1=1, msb_SORT_122=4, msb_SORT_3=32768, msb_SORT_45=32, msb_SORT_5=128, msb_SORT_55=2147483648, msb_SORT_61=16777216, msb_SORT_63=64, msb_SORT_7=16, msb_SORT_84=2, state_101=0, state_103=0, state_107=0, state_136=0, state_138=0, state_140=0, state_142=0, state_144=0, state_151=0, state_153=0, state_170=0, state_172=0, state_18=0, state_181=0, state_183=0, state_185=0, state_20=0, state_23=0, state_26=0, state_29=0, state_32=0, state_36=0, state_47=0, state_51=0, state_70=0, state_76=0, state_80=0, state_82=0, state_93=0, state_95=0, state_97=0, var_112=0, var_17=0, var_218=33, var_227=1, var_41=1, var_46=0, var_50=0, var_56=2, var_58=2, var_62=0, var_66=1] [L189] input_2 = __VERIFIER_nondet_uchar() [L190] input_4 = __VERIFIER_nondet_ushort() [L191] input_6 = __VERIFIER_nondet_uchar() [L192] input_8 = __VERIFIER_nondet_uchar() [L193] input_9 = __VERIFIER_nondet_uchar() [L194] input_10 = __VERIFIER_nondet_uchar() [L195] input_11 = __VERIFIER_nondet_uchar() [L196] input_12 = __VERIFIER_nondet_uchar() [L197] input_12 = input_12 & mask_SORT_1 [L198] input_13 = __VERIFIER_nondet_uchar() [L199] input_14 = __VERIFIER_nondet_uchar() [L200] input_15 = __VERIFIER_nondet_uchar() [L201] input_16 = __VERIFIER_nondet_uchar() [L202] input_85 = __VERIFIER_nondet_uchar() [L203] input_87 = __VERIFIER_nondet_uchar() [L204] input_89 = __VERIFIER_nondet_uchar() [L205] input_91 = __VERIFIER_nondet_uchar() [L206] input_99 = __VERIFIER_nondet_uchar() [L207] input_105 = __VERIFIER_nondet_uchar() [L208] input_134 = __VERIFIER_nondet_uchar() [L209] input_149 = __VERIFIER_nondet_uchar() [L210] input_162 = __VERIFIER_nondet_uchar() [L211] input_164 = __VERIFIER_nondet_uchar() [L212] input_166 = __VERIFIER_nondet_ushort() [L213] input_168 = __VERIFIER_nondet_uchar() [L214] input_179 = __VERIFIER_nondet_uchar() [L217] SORT_1 var_22_arg_0 = state_18; [L218] SORT_1 var_22_arg_1 = state_20; [L219] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L220] SORT_1 var_25_arg_0 = var_22; [L221] SORT_1 var_25_arg_1 = state_23; [L222] SORT_1 var_25 = var_25_arg_0 | var_25_arg_1; [L223] SORT_1 var_28_arg_0 = var_25; [L224] SORT_1 var_28_arg_1 = state_26; [L225] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L226] SORT_1 var_31_arg_0 = var_28; [L227] SORT_1 var_31_arg_1 = state_29; [L228] SORT_1 var_31 = var_31_arg_0 | var_31_arg_1; [L229] SORT_1 var_34_arg_0 = var_31; [L230] SORT_1 var_34_arg_1 = state_32; [L231] SORT_1 var_34 = var_34_arg_0 | var_34_arg_1; [L232] SORT_1 var_35_arg_0 = var_34; [L233] SORT_1 var_35 = ~var_35_arg_0; [L234] SORT_1 var_38_arg_0 = var_35; [L235] SORT_1 var_38_arg_1 = state_36; [L236] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L237] SORT_1 var_42_arg_0 = var_38; [L238] SORT_1 var_42 = ~var_42_arg_0; [L239] SORT_1 var_43_arg_0 = var_41; [L240] SORT_1 var_43_arg_1 = var_42; [L241] SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; [L242] var_43 = var_43 & mask_SORT_1 [L243] SORT_1 bad_44_arg_0 = var_43; [L244] CALL __VERIFIER_assert(!(bad_44_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:42:21,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW --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 64bit --witnessprinter.graph.data.programhash e717dbaa7c87680e2898e20401e6a0e780331d7eabb7d7391b67acb5da3c5ec1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:42:24,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:42:24,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:42:24,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:42:24,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:42:24,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:42:24,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:42:24,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:42:24,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:42:24,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:42:24,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:42:24,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:42:24,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:42:24,227 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:42:24,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:42:24,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:42:24,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:42:24,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:42:24,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:42:24,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:42:24,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:42:24,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:42:24,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:42:24,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:42:24,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:42:24,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:42:24,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:42:24,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:42:24,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:42:24,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:42:24,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:42:24,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:42:24,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:42:24,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:42:24,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:42:24,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:42:24,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:42:24,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:42:24,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:42:24,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:42:24,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:42:24,272 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 15:42:24,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:42:24,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:42:24,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:42:24,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:42:24,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:42:24,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:42:24,297 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:42:24,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:42:24,297 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:42:24,297 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:42:24,298 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:42:24,298 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:42:24,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:42:24,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:42:24,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:42:24,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:42:24,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:42:24,299 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:42:24,300 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:42:24,300 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:42:24,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:42:24,300 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:42:24,300 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:42:24,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:42:24,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:42:24,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:42:24,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:24,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:42:24,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:42:24,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:42:24,302 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:42:24,302 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:42:24,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:42:24,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:42:24,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:42:24,303 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_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e717dbaa7c87680e2898e20401e6a0e780331d7eabb7d7391b67acb5da3c5ec1 [2022-11-23 15:42:24,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:42:24,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:42:24,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:42:24,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:42:24,766 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:42:24,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2022-11-23 15:42:27,890 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:42:28,242 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:42:28,242 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2022-11-23 15:42:28,253 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data/bb4a67fd0/94ef2bfe55d44ac096ea512850c8260c/FLAGae99aea3c [2022-11-23 15:42:28,268 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/data/bb4a67fd0/94ef2bfe55d44ac096ea512850c8260c [2022-11-23 15:42:28,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:42:28,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:42:28,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:28,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:42:28,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:42:28,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:28,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23433538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28, skipping insertion in model container [2022-11-23 15:42:28,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:28,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:42:28,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:42:28,492 WARN L237 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_e8e155d6-b134-474f-b2c7-d7c376ed94a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c[1107,1120] [2022-11-23 15:42:28,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:28,699 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:42:28,710 WARN L237 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_e8e155d6-b134-474f-b2c7-d7c376ed94a8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vMiim_p2.c[1107,1120] [2022-11-23 15:42:28,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:42:28,898 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:42:28,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28 WrapperNode [2022-11-23 15:42:28,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:42:28,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:28,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:42:28,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:42:28,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:28,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:28,985 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 742 [2022-11-23 15:42:28,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:42:28,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:42:28,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:42:28,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:42:29,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,063 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:42:29,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:42:29,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:42:29,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:42:29,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (1/1) ... [2022-11-23 15:42:29,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:42:29,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:42:29,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:42:29,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:42:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:42:29,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:42:29,442 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:42:29,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:42:30,315 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:42:30,325 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:42:30,325 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:42:30,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:30 BoogieIcfgContainer [2022-11-23 15:42:30,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:42:30,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:42:30,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:42:30,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:42:30,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:42:28" (1/3) ... [2022-11-23 15:42:30,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47aa0e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:30, skipping insertion in model container [2022-11-23 15:42:30,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:42:28" (2/3) ... [2022-11-23 15:42:30,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47aa0e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:42:30, skipping insertion in model container [2022-11-23 15:42:30,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:42:30" (3/3) ... [2022-11-23 15:42:30,341 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vMiim_p2.c [2022-11-23 15:42:30,361 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:42:30,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:42:30,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:42:30,438 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a2a71f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:42:30,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:42:30,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2022-11-23 15:42:30,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 15:42:30,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:30,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 15:42:30,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:42:30,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:30,459 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 15:42:30,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:42:30,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500630456] [2022-11-23 15:42:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:30,476 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:42:30,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:42:30,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:42:30,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:42:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:30,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-23 15:42:30,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:42:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:31,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:42:31,022 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:42:31,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500630456] [2022-11-23 15:42:31,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [500630456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:42:31,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:42:31,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:42:31,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906700213] [2022-11-23 15:42:31,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:42:31,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:42:31,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:42:31,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:42:31,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:42:31,086 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 15:42:31,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:42:31,223 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 15:42:31,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:42:31,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2022-11-23 15:42:31,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:42:31,235 INFO L225 Difference]: With dead ends: 20 [2022-11-23 15:42:31,235 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 15:42:31,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:42:31,243 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:42:31,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:42:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 15:42:31,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 15:42:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2022-11-23 15:42:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 15:42:31,278 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 15:42:31,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:42:31,279 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 15:42:31,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-23 15:42:31,279 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 15:42:31,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:42:31,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:42:31,280 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 15:42:31,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:42:31,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:42:31,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:42:31,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:42:31,499 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 15:42:31,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:42:31,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952218682] [2022-11-23 15:42:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:42:31,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:42:31,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:42:31,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:42:31,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 15:42:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:42:31,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 156 conjunts are in the unsatisfiable core [2022-11-23 15:42:31,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:42:33,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:42:33,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:44:39,221 WARN L233 SmtUtils]: Spent 1.91m on a formula simplification. DAG size of input: 948 DAG size of output: 318 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:44:44,130 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:44:44,131 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:44:44,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952218682] [2022-11-23 15:44:44,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952218682] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:44:44,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2080038477] [2022-11-23 15:44:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:44,132 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 15:44:44,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 15:44:44,160 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 15:44:44,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 15:44:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:44:44,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 157 conjunts are in the unsatisfiable core [2022-11-23 15:44:44,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:44:45,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:44:45,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:46:24,523 WARN L233 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 898 DAG size of output: 320 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:46:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:46:24,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2080038477] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:46:24,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475669877] [2022-11-23 15:46:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:46:24,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:46:24,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:46:24,710 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:46:24,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:46:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:46:25,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 157 conjunts are in the unsatisfiable core [2022-11-23 15:46:25,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:46:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:46:25,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:47:17,278 WARN L233 SmtUtils]: Spent 37.29s on a formula simplification. DAG size of input: 878 DAG size of output: 303 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 15:47:20,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:47:20,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475669877] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:47:20,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 15:47:20,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5, 6, 6] total 15 [2022-11-23 15:47:20,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940556243] [2022-11-23 15:47:20,650 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 15:47:20,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-23 15:47:20,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:47:20,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-23 15:47:20,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=151, Unknown=11, NotChecked=0, Total=210 [2022-11-23 15:47:20,653 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2022-11-23 15:47:21,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:47:21,238 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 15:47:21,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:47:21,239 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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 8 [2022-11-23 15:47:21,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:47:21,239 INFO L225 Difference]: With dead ends: 16 [2022-11-23 15:47:21,239 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 15:47:21,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 262.6s TimeCoverageRelationStatistics Valid=82, Invalid=213, Unknown=11, NotChecked=0, Total=306 [2022-11-23 15:47:21,241 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:47:21,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 36 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:47:21,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 15:47:21,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 15:47:21,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-23 15:47:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 15:47:21,246 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 15:47:21,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:47:21,246 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 15:47:21,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 15 states have internal predecessors, (29), 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) [2022-11-23 15:47:21,247 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 15:47:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:47:21,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:47:21,248 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 15:47:21,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-23 15:47:21,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:47:21,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 15:47:21,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:47:21,851 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:47:21,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:47:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 15:47:21,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:47:21,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068455560] [2022-11-23 15:47:21,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 15:47:21,854 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:47:21,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:47:21,855 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:47:21,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8e155d6-b134-474f-b2c7-d7c376ed94a8/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-23 15:47:22,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 15:47:22,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 15:47:22,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 328 conjunts are in the unsatisfiable core [2022-11-23 15:47:22,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:47:26,757 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:47:26,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:50:00,013 WARN L233 SmtUtils]: Spent 2.36m on a formula simplification. DAG size of input: 1354 DAG size of output: 355 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)