./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba --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 556ee1c464a0bd726862fdddf57622ce41aa91473c55ca6b32db0e4429e29991 --- 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-b5237d8 [2022-11-22 02:09:59,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:09:59,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:09:59,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:09:59,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:09:59,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:09:59,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:09:59,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:09:59,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:09:59,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:09:59,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:09:59,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:09:59,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:09:59,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:09:59,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:09:59,280 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:09:59,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:09:59,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:09:59,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:09:59,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:09:59,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:09:59,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:09:59,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:09:59,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:09:59,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:09:59,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:09:59,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:09:59,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:09:59,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:09:59,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:09:59,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:09:59,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:09:59,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:09:59,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:09:59,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:09:59,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:09:59,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:09:59,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:09:59,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:09:59,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:09:59,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:09:59,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:09:59,370 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:09:59,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:09:59,371 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:09:59,371 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:09:59,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:09:59,372 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:09:59,372 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:09:59,373 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:09:59,373 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:09:59,373 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:09:59,374 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:09:59,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:09:59,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:09:59,375 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:09:59,375 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:09:59,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:09:59,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:09:59,376 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:09:59,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:09:59,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:09:59,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:09:59,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:09:59,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:09:59,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:09:59,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:09:59,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:09:59,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:09:59,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:09:59,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:09:59,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:09:59,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:09:59,379 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:09:59,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:09:59,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:09:59,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:09:59,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:09:59,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:09:59,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:09:59,381 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 556ee1c464a0bd726862fdddf57622ce41aa91473c55ca6b32db0e4429e29991 [2022-11-22 02:09:59,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:09:59,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:09:59,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:09:59,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:09:59,736 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:09:59,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2022-11-22 02:10:02,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:10:03,243 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:10:03,244 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2022-11-22 02:10:03,264 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data/be6b48e56/d01e584499ee4cfeba0e31fcb9b56c3e/FLAGdf594d514 [2022-11-22 02:10:03,277 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data/be6b48e56/d01e584499ee4cfeba0e31fcb9b56c3e [2022-11-22 02:10:03,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:10:03,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:10:03,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:10:03,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:10:03,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:10:03,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:10:03" (1/1) ... [2022-11-22 02:10:03,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f4ca65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:03, skipping insertion in model container [2022-11-22 02:10:03,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:10:03" (1/1) ... [2022-11-22 02:10:03,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:10:03,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:10:03,558 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1107,1120] [2022-11-22 02:10:04,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:10:04,019 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:10:04,030 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1107,1120] [2022-11-22 02:10:04,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:10:04,171 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:10:04,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04 WrapperNode [2022-11-22 02:10:04,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:10:04,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:10:04,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:10:04,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:10:04,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,366 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2489 [2022-11-22 02:10:04,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:10:04,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:10:04,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:10:04,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:10:04,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:10:04,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:10:04,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:10:04,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:10:04,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (1/1) ... [2022-11-22 02:10:04,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:10:04,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:10:04,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:10:04,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:10:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:10:04,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:10:05,403 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:10:05,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:05,424 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:12:05,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:12:05,472 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:12:05,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:05 BoogieIcfgContainer [2022-11-22 02:12:05,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:12:05,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:12:05,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:12:05,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:12:05,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:10:03" (1/3) ... [2022-11-22 02:12:05,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca89a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:05, skipping insertion in model container [2022-11-22 02:12:05,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:10:04" (2/3) ... [2022-11-22 02:12:05,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ca89a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:05, skipping insertion in model container [2022-11-22 02:12:05,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:05" (3/3) ... [2022-11-22 02:12:05,492 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2022-11-22 02:12:05,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:12:05,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:12:05,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:12:05,575 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;@716a7072, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:12:05,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:12:05,579 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) [2022-11-22 02:12:05,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:12:05,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:05,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:12:05,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:05,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:05,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-22 02:12:05,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:12:05,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065841103] [2022-11-22 02:12:05,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:05,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:12:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:12:06,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:12:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:12:06,522 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:12:06,527 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:12:06,528 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:12:06,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:12:06,535 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:12:06,539 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:12:06,589 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 02:12:06,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:12:06 BoogieIcfgContainer [2022-11-22 02:12:06,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:12:06,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:12:06,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:12:06,616 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:12:06,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:05" (3/4) ... [2022-11-22 02:12:06,620 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:12:06,620 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:12:06,622 INFO L158 Benchmark]: Toolchain (without parser) took 123341.24ms. Allocated memory was 169.9MB in the beginning and 973.1MB in the end (delta: 803.2MB). Free memory was 122.4MB in the beginning and 661.5MB in the end (delta: -539.0MB). Peak memory consumption was 265.6MB. Max. memory is 16.1GB. [2022-11-22 02:12:06,623 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:12:06,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 889.93ms. Allocated memory is still 169.9MB. Free memory was 122.0MB in the beginning and 99.9MB in the end (delta: 22.1MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2022-11-22 02:12:06,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 193.76ms. Allocated memory is still 169.9MB. Free memory was 99.9MB in the beginning and 77.6MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 02:12:06,626 INFO L158 Benchmark]: Boogie Preprocessor took 139.74ms. Allocated memory is still 169.9MB. Free memory was 77.6MB in the beginning and 66.3MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:12:06,631 INFO L158 Benchmark]: RCFGBuilder took 120968.06ms. Allocated memory was 169.9MB in the beginning and 973.1MB in the end (delta: 803.2MB). Free memory was 66.3MB in the beginning and 756.9MB in the end (delta: -690.6MB). Peak memory consumption was 548.6MB. Max. memory is 16.1GB. [2022-11-22 02:12:06,633 INFO L158 Benchmark]: TraceAbstraction took 1135.28ms. Allocated memory is still 973.1MB. Free memory was 755.8MB in the beginning and 662.5MB in the end (delta: 93.3MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. [2022-11-22 02:12:06,633 INFO L158 Benchmark]: Witness Printer took 5.93ms. Allocated memory is still 973.1MB. Free memory was 662.5MB in the beginning and 661.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:12:06,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 889.93ms. Allocated memory is still 169.9MB. Free memory was 122.0MB in the beginning and 99.9MB in the end (delta: 22.1MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 193.76ms. Allocated memory is still 169.9MB. Free memory was 99.9MB in the beginning and 77.6MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.74ms. Allocated memory is still 169.9MB. Free memory was 77.6MB in the beginning and 66.3MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 120968.06ms. Allocated memory was 169.9MB in the beginning and 973.1MB in the end (delta: 803.2MB). Free memory was 66.3MB in the beginning and 756.9MB in the end (delta: -690.6MB). Peak memory consumption was 548.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1135.28ms. Allocated memory is still 973.1MB. Free memory was 755.8MB in the beginning and 662.5MB in the end (delta: 93.3MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. * Witness Printer took 5.93ms. Allocated memory is still 973.1MB. Free memory was 662.5MB in the beginning and 661.5MB 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.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 381, overapproximation of bitwiseOr at line 343, overapproximation of bitwiseAnd at line 243. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L34] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 4); [L35] const SORT_12 msb_SORT_12 = (SORT_12)1 << (4 - 1); [L37] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 8); [L38] const SORT_16 msb_SORT_16 = (SORT_16)1 << (8 - 1); [L40] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L41] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L43] const SORT_21 var_22 = 1; [L44] const SORT_21 var_26 = 2; [L45] const SORT_21 var_29 = 4; [L46] const SORT_21 var_32 = 8; [L47] const SORT_21 var_35 = 16; [L48] const SORT_21 var_38 = 32; [L49] const SORT_21 var_41 = 64; [L50] const SORT_21 var_44 = 0; [L51] const SORT_3 var_47 = 1; [L52] const SORT_3 var_51 = 0; [L53] const SORT_6 var_138 = 0; [L55] SORT_1 input_2; [L56] SORT_3 input_4; [L57] SORT_3 input_5; [L58] SORT_6 input_7; [L59] SORT_3 input_8; [L60] SORT_3 input_9; [L61] SORT_3 input_10; [L62] SORT_3 input_11; [L63] SORT_12 input_13; [L64] SORT_3 input_14; [L65] SORT_3 input_15; [L66] SORT_16 input_17; [L67] SORT_3 input_18; [L68] SORT_3 input_19; [L69] SORT_3 input_20; [L70] SORT_3 input_360; [L71] SORT_3 input_382; [L72] SORT_3 input_397; [L73] SORT_3 input_412; [L74] SORT_3 input_427; [L75] SORT_3 input_442; [L76] SORT_3 input_457; [L77] SORT_3 input_472; [L78] SORT_3 input_487; [L79] SORT_3 input_502; [L80] SORT_3 input_517; [L81] SORT_3 input_532; [L82] SORT_3 input_547; [L83] SORT_3 input_562; [L84] SORT_3 input_577; [L85] SORT_3 input_592; [L86] SORT_3 input_608; [L87] SORT_3 input_610; [L88] SORT_3 input_612; [L89] SORT_3 input_614; [L90] SORT_3 input_616; [L91] SORT_3 input_618; [L92] SORT_3 input_620; [L93] SORT_3 input_622; [L94] SORT_3 input_627; [L95] SORT_3 input_669; [L96] SORT_3 input_678; [L97] SORT_21 input_683; [L98] SORT_21 input_684; [L99] SORT_21 input_685; [L100] SORT_21 input_686; [L101] SORT_21 input_689; [L102] SORT_21 input_693; [L103] SORT_21 input_697; [L104] SORT_21 input_705; [L105] SORT_21 input_709; [L106] SORT_21 input_711; [L107] SORT_21 input_715; [L108] SORT_21 input_718; [L109] SORT_21 input_722; [L110] SORT_21 input_727; [L111] SORT_21 input_731; [L112] SORT_21 input_736; [L113] SORT_21 input_738; [L114] SORT_21 input_739; [L115] SORT_21 input_741; [L116] SORT_21 input_745; [L117] SORT_21 input_750; [L118] SORT_21 input_757; [L119] SORT_21 input_758; [L120] SORT_21 input_760; [L121] SORT_21 input_764; [L122] SORT_21 input_769; [L123] SORT_21 input_771; [L124] SORT_21 input_772; [L125] SORT_21 input_774; [L126] SORT_21 input_778; [L127] SORT_21 input_783; [L128] SORT_21 input_787; [L129] SORT_21 input_792; [L130] SORT_21 input_794; [L131] SORT_21 input_800; [L132] SORT_21 input_812; [L133] SORT_3 input_830; [L134] SORT_3 input_837; [L135] SORT_3 input_848; [L136] SORT_3 input_854; [L137] SORT_3 input_860; [L138] SORT_3 input_866; [L139] SORT_3 input_872; [L140] SORT_3 input_878; [L141] SORT_3 input_884; [L142] SORT_3 input_890; [L143] SORT_3 input_896; [L144] SORT_3 input_902; [L145] SORT_3 input_908; [L146] SORT_3 input_914; [L147] SORT_3 input_920; [L149] SORT_21 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L150] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L151] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L152] SORT_3 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L153] SORT_21 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L154] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L155] SORT_3 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L156] SORT_3 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L157] SORT_3 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L158] SORT_3 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L159] SORT_3 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L160] SORT_3 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L161] SORT_3 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L162] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L163] SORT_3 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L164] SORT_3 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L165] SORT_3 state_134 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L166] SORT_3 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] SORT_3 state_144 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L168] SORT_3 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] SORT_3 state_158 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L170] SORT_3 state_161 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L171] SORT_3 state_173 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L172] SORT_3 state_183 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L173] SORT_3 state_188 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] SORT_3 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L175] SORT_3 state_200 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] SORT_3 state_213 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] SORT_3 state_226 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L179] SORT_21 init_24_arg_1 = var_22; [L180] state_23 = init_24_arg_1 [L181] SORT_3 init_53_arg_1 = var_51; [L182] state_52 = init_53_arg_1 [L183] SORT_3 init_55_arg_1 = var_51; [L184] state_54 = init_55_arg_1 [L185] SORT_3 init_57_arg_1 = var_51; [L186] state_56 = init_57_arg_1 [L187] SORT_21 init_59_arg_1 = var_22; [L188] state_58 = init_59_arg_1 [L189] SORT_3 init_63_arg_1 = var_51; [L190] state_62 = init_63_arg_1 [L191] SORT_3 init_67_arg_1 = var_51; [L192] state_66 = init_67_arg_1 [L193] SORT_3 init_71_arg_1 = var_51; [L194] state_70 = init_71_arg_1 [L195] SORT_3 init_87_arg_1 = var_51; [L196] state_86 = init_87_arg_1 [L197] SORT_3 init_104_arg_1 = var_51; [L198] state_103 = init_104_arg_1 [L199] SORT_3 init_107_arg_1 = var_51; [L200] state_106 = init_107_arg_1 [L201] SORT_3 init_109_arg_1 = var_51; [L202] state_108 = init_109_arg_1 [L203] SORT_3 init_113_arg_1 = var_51; [L204] state_112 = init_113_arg_1 [L205] SORT_3 init_117_arg_1 = var_51; [L206] state_116 = init_117_arg_1 [L207] SORT_3 init_122_arg_1 = var_51; [L208] state_121 = init_122_arg_1 [L209] SORT_3 init_125_arg_1 = var_51; [L210] state_124 = init_125_arg_1 [L211] SORT_3 init_135_arg_1 = var_51; [L212] state_134 = init_135_arg_1 [L213] SORT_3 init_142_arg_1 = var_51; [L214] state_141 = init_142_arg_1 [L215] SORT_3 init_145_arg_1 = var_51; [L216] state_144 = init_145_arg_1 [L217] SORT_3 init_154_arg_1 = var_51; [L218] state_153 = init_154_arg_1 [L219] SORT_3 init_159_arg_1 = var_51; [L220] state_158 = init_159_arg_1 [L221] SORT_3 init_162_arg_1 = var_51; [L222] state_161 = init_162_arg_1 [L223] SORT_3 init_174_arg_1 = var_51; [L224] state_173 = init_174_arg_1 [L225] SORT_3 init_184_arg_1 = var_51; [L226] state_183 = init_184_arg_1 [L227] SORT_3 init_189_arg_1 = var_51; [L228] state_188 = init_189_arg_1 [L229] SORT_3 init_192_arg_1 = var_51; [L230] state_191 = init_192_arg_1 [L231] SORT_3 init_201_arg_1 = var_51; [L232] state_200 = init_201_arg_1 [L233] SORT_3 init_214_arg_1 = var_51; [L234] state_213 = init_214_arg_1 [L235] SORT_3 init_227_arg_1 = var_51; [L236] state_226 = init_227_arg_1 VAL [init_104_arg_1=0, init_107_arg_1=0, init_109_arg_1=0, init_113_arg_1=0, init_117_arg_1=0, init_122_arg_1=0, init_125_arg_1=0, init_135_arg_1=0, init_142_arg_1=0, init_145_arg_1=0, init_154_arg_1=0, init_159_arg_1=0, init_162_arg_1=0, init_174_arg_1=0, init_184_arg_1=0, init_189_arg_1=0, init_192_arg_1=0, init_201_arg_1=0, init_214_arg_1=0, init_227_arg_1=0, init_24_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_63_arg_1=0, init_67_arg_1=0, init_71_arg_1=0, init_87_arg_1=0, mask_SORT_1=3, mask_SORT_12=15, mask_SORT_16=255, mask_SORT_21=127, mask_SORT_3=1, mask_SORT_6=7, msb_SORT_1=2, msb_SORT_12=8, msb_SORT_16=128, msb_SORT_21=64, msb_SORT_3=1, msb_SORT_6=4, state_103=0, state_106=0, state_108=0, state_112=0, state_116=0, state_121=0, state_124=0, state_134=0, state_141=0, state_144=0, state_153=0, state_158=0, state_161=0, state_173=0, state_183=0, state_188=0, state_191=0, state_200=0, state_213=0, state_226=0, state_23=1, state_52=0, state_54=0, state_56=0, state_58=1, state_62=0, state_66=0, state_70=0, state_86=0, var_138=0, var_22=1, var_26=2, var_29=4, var_32=8, var_35=16, var_38=32, var_41=64, var_44=0, var_47=1, var_51=0] [L239] input_2 = __VERIFIER_nondet_uchar() [L240] input_4 = __VERIFIER_nondet_uchar() [L241] input_5 = __VERIFIER_nondet_uchar() [L242] input_7 = __VERIFIER_nondet_uchar() [L243] input_7 = input_7 & mask_SORT_6 [L244] input_8 = __VERIFIER_nondet_uchar() [L245] input_9 = __VERIFIER_nondet_uchar() [L246] input_10 = __VERIFIER_nondet_uchar() [L247] input_11 = __VERIFIER_nondet_uchar() [L248] input_13 = __VERIFIER_nondet_uchar() [L249] input_14 = __VERIFIER_nondet_uchar() [L250] input_15 = __VERIFIER_nondet_uchar() [L251] input_17 = __VERIFIER_nondet_uchar() [L252] input_18 = __VERIFIER_nondet_uchar() [L253] input_19 = __VERIFIER_nondet_uchar() [L254] input_20 = __VERIFIER_nondet_uchar() [L255] input_360 = __VERIFIER_nondet_uchar() [L256] input_382 = __VERIFIER_nondet_uchar() [L257] input_397 = __VERIFIER_nondet_uchar() [L258] input_412 = __VERIFIER_nondet_uchar() [L259] input_427 = __VERIFIER_nondet_uchar() [L260] input_442 = __VERIFIER_nondet_uchar() [L261] input_457 = __VERIFIER_nondet_uchar() [L262] input_472 = __VERIFIER_nondet_uchar() [L263] input_487 = __VERIFIER_nondet_uchar() [L264] input_502 = __VERIFIER_nondet_uchar() [L265] input_517 = __VERIFIER_nondet_uchar() [L266] input_532 = __VERIFIER_nondet_uchar() [L267] input_547 = __VERIFIER_nondet_uchar() [L268] input_562 = __VERIFIER_nondet_uchar() [L269] input_577 = __VERIFIER_nondet_uchar() [L270] input_592 = __VERIFIER_nondet_uchar() [L271] input_608 = __VERIFIER_nondet_uchar() [L272] input_610 = __VERIFIER_nondet_uchar() [L273] input_612 = __VERIFIER_nondet_uchar() [L274] input_614 = __VERIFIER_nondet_uchar() [L275] input_616 = __VERIFIER_nondet_uchar() [L276] input_618 = __VERIFIER_nondet_uchar() [L277] input_620 = __VERIFIER_nondet_uchar() [L278] input_622 = __VERIFIER_nondet_uchar() [L279] input_627 = __VERIFIER_nondet_uchar() [L280] input_669 = __VERIFIER_nondet_uchar() [L281] input_678 = __VERIFIER_nondet_uchar() [L282] input_683 = __VERIFIER_nondet_uchar() [L283] input_684 = __VERIFIER_nondet_uchar() [L284] input_685 = __VERIFIER_nondet_uchar() [L285] input_686 = __VERIFIER_nondet_uchar() [L286] input_689 = __VERIFIER_nondet_uchar() [L287] input_693 = __VERIFIER_nondet_uchar() [L288] input_697 = __VERIFIER_nondet_uchar() [L289] input_705 = __VERIFIER_nondet_uchar() [L290] input_709 = __VERIFIER_nondet_uchar() [L291] input_711 = __VERIFIER_nondet_uchar() [L292] input_715 = __VERIFIER_nondet_uchar() [L293] input_718 = __VERIFIER_nondet_uchar() [L294] input_722 = __VERIFIER_nondet_uchar() [L295] input_727 = __VERIFIER_nondet_uchar() [L296] input_731 = __VERIFIER_nondet_uchar() [L297] input_736 = __VERIFIER_nondet_uchar() [L298] input_738 = __VERIFIER_nondet_uchar() [L299] input_739 = __VERIFIER_nondet_uchar() [L300] input_741 = __VERIFIER_nondet_uchar() [L301] input_745 = __VERIFIER_nondet_uchar() [L302] input_750 = __VERIFIER_nondet_uchar() [L303] input_757 = __VERIFIER_nondet_uchar() [L304] input_758 = __VERIFIER_nondet_uchar() [L305] input_760 = __VERIFIER_nondet_uchar() [L306] input_764 = __VERIFIER_nondet_uchar() [L307] input_769 = __VERIFIER_nondet_uchar() [L308] input_771 = __VERIFIER_nondet_uchar() [L309] input_772 = __VERIFIER_nondet_uchar() [L310] input_774 = __VERIFIER_nondet_uchar() [L311] input_778 = __VERIFIER_nondet_uchar() [L312] input_783 = __VERIFIER_nondet_uchar() [L313] input_787 = __VERIFIER_nondet_uchar() [L314] input_792 = __VERIFIER_nondet_uchar() [L315] input_794 = __VERIFIER_nondet_uchar() [L316] input_800 = __VERIFIER_nondet_uchar() [L317] input_812 = __VERIFIER_nondet_uchar() [L318] input_830 = __VERIFIER_nondet_uchar() [L319] input_837 = __VERIFIER_nondet_uchar() [L320] input_848 = __VERIFIER_nondet_uchar() [L321] input_854 = __VERIFIER_nondet_uchar() [L322] input_860 = __VERIFIER_nondet_uchar() [L323] input_866 = __VERIFIER_nondet_uchar() [L324] input_872 = __VERIFIER_nondet_uchar() [L325] input_878 = __VERIFIER_nondet_uchar() [L326] input_884 = __VERIFIER_nondet_uchar() [L327] input_890 = __VERIFIER_nondet_uchar() [L328] input_896 = __VERIFIER_nondet_uchar() [L329] input_902 = __VERIFIER_nondet_uchar() [L330] input_908 = __VERIFIER_nondet_uchar() [L331] input_914 = __VERIFIER_nondet_uchar() [L332] input_920 = __VERIFIER_nondet_uchar() [L335] SORT_21 var_25_arg_0 = state_23; [L336] SORT_21 var_25_arg_1 = var_22; [L337] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L338] SORT_21 var_27_arg_0 = state_23; [L339] SORT_21 var_27_arg_1 = var_26; [L340] SORT_3 var_27 = var_27_arg_0 == var_27_arg_1; [L341] SORT_3 var_28_arg_0 = var_25; [L342] SORT_3 var_28_arg_1 = var_27; [L343] SORT_3 var_28 = var_28_arg_0 | var_28_arg_1; [L344] SORT_21 var_30_arg_0 = state_23; [L345] SORT_21 var_30_arg_1 = var_29; [L346] SORT_3 var_30 = var_30_arg_0 == var_30_arg_1; [L347] SORT_3 var_31_arg_0 = var_28; [L348] SORT_3 var_31_arg_1 = var_30; [L349] SORT_3 var_31 = var_31_arg_0 | var_31_arg_1; [L350] SORT_21 var_33_arg_0 = state_23; [L351] SORT_21 var_33_arg_1 = var_32; [L352] SORT_3 var_33 = var_33_arg_0 == var_33_arg_1; [L353] SORT_3 var_34_arg_0 = var_31; [L354] SORT_3 var_34_arg_1 = var_33; [L355] SORT_3 var_34 = var_34_arg_0 | var_34_arg_1; [L356] SORT_21 var_36_arg_0 = state_23; [L357] SORT_21 var_36_arg_1 = var_35; [L358] SORT_3 var_36 = var_36_arg_0 == var_36_arg_1; [L359] SORT_3 var_37_arg_0 = var_34; [L360] SORT_3 var_37_arg_1 = var_36; [L361] SORT_3 var_37 = var_37_arg_0 | var_37_arg_1; [L362] SORT_21 var_39_arg_0 = state_23; [L363] SORT_21 var_39_arg_1 = var_38; [L364] SORT_3 var_39 = var_39_arg_0 == var_39_arg_1; [L365] SORT_3 var_40_arg_0 = var_37; [L366] SORT_3 var_40_arg_1 = var_39; [L367] SORT_3 var_40 = var_40_arg_0 | var_40_arg_1; [L368] SORT_21 var_42_arg_0 = state_23; [L369] SORT_21 var_42_arg_1 = var_41; [L370] SORT_3 var_42 = var_42_arg_0 == var_42_arg_1; [L371] SORT_3 var_43_arg_0 = var_40; [L372] SORT_3 var_43_arg_1 = var_42; [L373] SORT_3 var_43 = var_43_arg_0 | var_43_arg_1; [L374] SORT_21 var_45_arg_0 = state_23; [L375] SORT_21 var_45_arg_1 = var_44; [L376] SORT_3 var_45 = var_45_arg_0 == var_45_arg_1; [L377] SORT_3 var_46_arg_0 = var_43; [L378] SORT_3 var_46_arg_1 = var_45; [L379] SORT_3 var_46 = var_46_arg_0 | var_46_arg_1; [L380] SORT_3 var_48_arg_0 = var_46; [L381] SORT_3 var_48 = ~var_48_arg_0; [L382] SORT_3 var_49_arg_0 = var_47; [L383] SORT_3 var_49_arg_1 = var_48; [L384] SORT_3 var_49 = var_49_arg_0 & var_49_arg_1; [L385] var_49 = var_49 & mask_SORT_3 [L386] SORT_3 bad_50_arg_0 = var_49; [L387] CALL __VERIFIER_assert(!(bad_50_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 0.5s 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 [2022-11-22 02:12:06,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba --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 556ee1c464a0bd726862fdddf57622ce41aa91473c55ca6b32db0e4429e29991 --- 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-b5237d8 [2022-11-22 02:12:09,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:12:09,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:12:09,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:12:09,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:12:09,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:12:09,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:12:09,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:12:09,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:12:09,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:12:09,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:12:09,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:12:09,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:12:09,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:12:09,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:12:09,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:12:09,107 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:12:09,108 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:12:09,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:12:09,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:12:09,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:12:09,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:12:09,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:12:09,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:12:09,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:12:09,131 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:12:09,131 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:12:09,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:12:09,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:12:09,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:12:09,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:12:09,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:12:09,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:12:09,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:12:09,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:12:09,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:12:09,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:12:09,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:12:09,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:12:09,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:12:09,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:12:09,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 02:12:09,208 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:12:09,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:12:09,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:12:09,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:12:09,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:12:09,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:12:09,212 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:12:09,212 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:12:09,212 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:12:09,213 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:12:09,214 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:12:09,214 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:12:09,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:12:09,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:12:09,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:12:09,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:12:09,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:12:09,216 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:12:09,216 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:12:09,217 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:12:09,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:12:09,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:12:09,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:12:09,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:12:09,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:12:09,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:12:09,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:09,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:12:09,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:12:09,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:12:09,219 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:12:09,219 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:12:09,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:12:09,220 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:12:09,220 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:12:09,220 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 556ee1c464a0bd726862fdddf57622ce41aa91473c55ca6b32db0e4429e29991 [2022-11-22 02:12:09,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:12:09,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:12:09,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:12:09,692 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:12:09,692 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:12:09,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2022-11-22 02:12:12,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:12:13,155 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:12:13,155 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2022-11-22 02:12:13,171 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data/8b155a61b/10b57477b0a5440ca0937f9692292da8/FLAG43f977b5f [2022-11-22 02:12:13,190 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/data/8b155a61b/10b57477b0a5440ca0937f9692292da8 [2022-11-22 02:12:13,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:12:13,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:12:13,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:13,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:12:13,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:12:13,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:13" (1/1) ... [2022-11-22 02:12:13,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@561e7d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:13, skipping insertion in model container [2022-11-22 02:12:13,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:12:13" (1/1) ... [2022-11-22 02:12:13,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:12:13,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:12:13,446 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1107,1120] [2022-11-22 02:12:13,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:13,932 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:12:13,948 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_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1107,1120] [2022-11-22 02:12:14,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:12:14,139 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:12:14,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14 WrapperNode [2022-11-22 02:12:14,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:12:14,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:14,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:12:14,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:12:14,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,302 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2489 [2022-11-22 02:12:14,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:12:14,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:12:14,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:12:14,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:12:14,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,432 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:12:14,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:12:14,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:12:14,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:12:14,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (1/1) ... [2022-11-22 02:12:14,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:12:14,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:14,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:12:14,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:12:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:12:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:12:15,286 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:12:15,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:12:19,233 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:12:19,248 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:12:19,248 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:12:19,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:19 BoogieIcfgContainer [2022-11-22 02:12:19,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:12:19,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:12:19,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:12:19,258 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:12:19,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:12:13" (1/3) ... [2022-11-22 02:12:19,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e1e67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:19, skipping insertion in model container [2022-11-22 02:12:19,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:12:14" (2/3) ... [2022-11-22 02:12:19,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e1e67c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:12:19, skipping insertion in model container [2022-11-22 02:12:19,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:12:19" (3/3) ... [2022-11-22 02:12:19,263 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2022-11-22 02:12:19,284 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:12:19,284 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:12:19,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:12:19,341 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;@14f1c4f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:12:19,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:12:19,345 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) [2022-11-22 02:12:19,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:12:19,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:19,353 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:12:19,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:19,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:19,362 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 02:12:19,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:12:19,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314253906] [2022-11-22 02:12:19,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:19,379 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 [2022-11-22 02:12:19,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:12:19,385 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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) [2022-11-22 02:12:19,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:12:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:20,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-22 02:12:20,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:20,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:20,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:12:20,315 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:12:20,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314253906] [2022-11-22 02:12:20,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314253906] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:12:20,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:12:20,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:12:20,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468860662] [2022-11-22 02:12:20,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:12:20,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:12:20,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:12:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:12:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:12:20,365 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) [2022-11-22 02:12:20,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:20,645 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 02:12:20,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:12:20,648 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 [2022-11-22 02:12:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:20,655 INFO L225 Difference]: With dead ends: 20 [2022-11-22 02:12:20,655 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:12:20,658 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 [2022-11-22 02:12:20,661 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:20,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:12:20,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:12:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 02:12:20,691 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) [2022-11-22 02:12:20,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 02:12:20,693 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 02:12:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:20,693 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 02:12:20,694 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) [2022-11-22 02:12:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 02:12:20,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:12:20,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:20,695 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:12:20,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:12:20,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:12:20,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 02:12:20,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:12:20,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865725306] [2022-11-22 02:12:20,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:20,914 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 [2022-11-22 02:12:20,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:12:20,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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) [2022-11-22 02:12:20,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:12:22,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:22,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-22 02:12:22,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:22,377 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:22,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:12:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:22,861 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:12:22,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865725306] [2022-11-22 02:12:22,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865725306] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:12:22,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [144676055] [2022-11-22 02:12:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:22,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:12:22,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:12:22,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:12:22,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 02:12:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:25,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-22 02:12:25,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:25,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:25,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:12:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:32,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [144676055] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:12:32,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660963927] [2022-11-22 02:12:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:12:32,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:12:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:12:32,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:12:32,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:12:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:12:33,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-22 02:12:33,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:33,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:12:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:42,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660963927] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:12:42,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:12:42,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2022-11-22 02:12:42,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918101231] [2022-11-22 02:12:42,101 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:12:42,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 02:12:42,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:12:42,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 02:12:42,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=132, Unknown=5, NotChecked=0, Total=182 [2022-11-22 02:12:42,105 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2022-11-22 02:12:42,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:12:42,546 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-22 02:12:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:12:42,547 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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 [2022-11-22 02:12:42,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:12:42,547 INFO L225 Difference]: With dead ends: 16 [2022-11-22 02:12:42,547 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 02:12:42,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 15.6s TimeCoverageRelationStatistics Valid=81, Invalid=186, Unknown=5, NotChecked=0, Total=272 [2022-11-22 02:12:42,549 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:12:42,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 24 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:12:42,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 02:12:42,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-22 02:12:42,556 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) [2022-11-22 02:12:42,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 02:12:42,557 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-22 02:12:42,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:12:42,557 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 02:12:42,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 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) [2022-11-22 02:12:42,558 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 02:12:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:12:42,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:12:42,559 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-22 02:12:42,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:42,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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)] Ended with exit code 0 [2022-11-22 02:12:42,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:12:43,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 02:12:43,171 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:12:43,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:12:43,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-22 02:12:43,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:12:43,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575768237] [2022-11-22 02:12:43,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:12:43,180 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 [2022-11-22 02:12:43,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:12:43,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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) [2022-11-22 02:12:43,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b6ae4e-10ef-4638-8295-64fc4a7c251e/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:12:44,933 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:12:44,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:12:45,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 4436 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-22 02:12:45,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:12:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:12:50,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:13:08,045 WARN L233 SmtUtils]: Spent 16.86s on a formula simplification. DAG size of input: 133 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)