./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:20:25,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:20:25,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:20:25,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:20:25,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:20:25,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:20:25,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:20:25,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:20:25,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:20:25,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:20:25,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:20:25,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:20:25,839 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:20:25,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:20:25,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:20:25,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:20:25,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:20:25,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:20:25,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:20:25,860 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:20:25,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:20:25,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:20:25,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:20:25,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:20:25,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:20:25,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:20:25,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:20:25,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:20:25,884 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:20:25,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:20:25,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:20:25,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:20:25,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:20:25,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:20:25,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:20:25,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:20:25,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:20:25,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:20:25,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:20:25,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:20:25,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:20:25,901 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:20:25,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:20:25,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:20:25,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:20:25,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:20:25,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:20:25,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:20:25,926 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:20:25,926 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:20:25,926 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:20:25,926 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:20:25,927 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:20:25,927 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:20:25,927 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:20:25,927 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:20:25,928 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:20:25,928 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:20:25,928 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:20:25,928 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:20:25,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:20:25,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:20:25,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:20:25,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:20:25,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:20:25,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:20:25,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:20:25,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:20:25,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:20:25,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:20:25,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:20:25,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:20:25,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:20:25,933 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:20:25,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:20:25,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:20:25,933 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:20:25,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:20:25,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:20:25,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:20:25,934 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_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a [2022-11-23 14:20:26,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:20:26,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:20:26,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:20:26,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:20:26,331 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:20:26,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-11-23 14:20:29,823 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:20:30,265 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:20:30,305 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-11-23 14:20:30,333 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data/f47cd1420/9bb4f023f77d44f0a0db87f14fe66d00/FLAGbc0957f12 [2022-11-23 14:20:30,369 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data/f47cd1420/9bb4f023f77d44f0a0db87f14fe66d00 [2022-11-23 14:20:30,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:20:30,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:20:30,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:20:30,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:20:30,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:20:30,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:30" (1/1) ... [2022-11-23 14:20:30,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ad89d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:30, skipping insertion in model container [2022-11-23 14:20:30,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:30" (1/1) ... [2022-11-23 14:20:30,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:20:30,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:20:30,719 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_958c0f3d-7950-487c-a731-22ce164e06cd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-11-23 14:20:31,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:20:31,206 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:20:31,221 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_958c0f3d-7950-487c-a731-22ce164e06cd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-11-23 14:20:31,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:20:31,470 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:20:31,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31 WrapperNode [2022-11-23 14:20:31,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:20:31,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:20:31,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:20:31,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:20:31,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,677 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1754 [2022-11-23 14:20:31,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:20:31,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:20:31,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:20:31,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:20:31,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:20:31,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:20:31,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:20:31,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:20:31,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (1/1) ... [2022-11-23 14:20:31,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:20:31,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:20:31,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:20:31,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:20:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:20:31,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:20:32,558 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:20:32,560 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:40,561 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:40,620 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:40,621 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:23:40,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:40 BoogieIcfgContainer [2022-11-23 14:23:40,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:40,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:40,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:40,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:40,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:20:30" (1/3) ... [2022-11-23 14:23:40,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb4d05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:40, skipping insertion in model container [2022-11-23 14:23:40,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:31" (2/3) ... [2022-11-23 14:23:40,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb4d05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:40, skipping insertion in model container [2022-11-23 14:23:40,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:40" (3/3) ... [2022-11-23 14:23:40,640 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-11-23 14:23:40,665 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:40,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:23:40,727 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:40,735 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;@2a11d230, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:40,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:23:40,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:40,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:23:40,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:40,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:23:40,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:40,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:40,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-23 14:23:40,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:40,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226519854] [2022-11-23 14:23:40,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:23:41,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:23:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:23:41,696 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:23:41,698 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:23:41,699 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:23:41,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:23:41,709 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:23:41,715 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:23:41,744 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:23:41,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:23:41 BoogieIcfgContainer [2022-11-23 14:23:41,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:23:41,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:23:41,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:23:41,764 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:23:41,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:40" (3/4) ... [2022-11-23 14:23:41,769 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:23:41,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:23:41,771 INFO L158 Benchmark]: Toolchain (without parser) took 191397.78ms. Allocated memory was 138.4MB in the beginning and 973.1MB in the end (delta: 834.7MB). Free memory was 111.2MB in the beginning and 600.3MB in the end (delta: -489.1MB). Peak memory consumption was 347.1MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,772 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:23:41,773 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1096.69ms. Allocated memory is still 138.4MB. Free memory was 110.8MB in the beginning and 92.5MB in the end (delta: 18.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 205.59ms. Allocated memory is still 138.4MB. Free memory was 92.5MB in the beginning and 72.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,775 INFO L158 Benchmark]: Boogie Preprocessor took 197.26ms. Allocated memory is still 138.4MB. Free memory was 72.7MB in the beginning and 62.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,781 INFO L158 Benchmark]: RCFGBuilder took 188746.32ms. Allocated memory was 138.4MB in the beginning and 973.1MB in the end (delta: 834.7MB). Free memory was 62.6MB in the beginning and 664.3MB in the end (delta: -601.7MB). Peak memory consumption was 567.0MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,783 INFO L158 Benchmark]: TraceAbstraction took 1131.76ms. Allocated memory is still 973.1MB. Free memory was 663.3MB in the beginning and 600.3MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,784 INFO L158 Benchmark]: Witness Printer took 6.41ms. Allocated memory is still 973.1MB. Free memory was 600.3MB in the beginning and 600.3MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:23:41,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1096.69ms. Allocated memory is still 138.4MB. Free memory was 110.8MB in the beginning and 92.5MB in the end (delta: 18.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 205.59ms. Allocated memory is still 138.4MB. Free memory was 92.5MB in the beginning and 72.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 197.26ms. Allocated memory is still 138.4MB. Free memory was 72.7MB in the beginning and 62.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 188746.32ms. Allocated memory was 138.4MB in the beginning and 973.1MB in the end (delta: 834.7MB). Free memory was 62.6MB in the beginning and 664.3MB in the end (delta: -601.7MB). Peak memory consumption was 567.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1131.76ms. Allocated memory is still 973.1MB. Free memory was 663.3MB in the beginning and 600.3MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 6.41ms. Allocated memory is still 973.1MB. Free memory was 600.3MB in the beginning and 600.3MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 203, overapproximation of bitwiseOr at line 198, overapproximation of bitwiseAnd at line 145. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 12); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (12 - 1); [L28] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 1); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (1 - 1); [L31] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 4); [L32] const SORT_11 msb_SORT_11 = (SORT_11)1 << (4 - 1); [L34] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 32); [L35] const SORT_37 msb_SORT_37 = (SORT_37)1 << (32 - 1); [L37] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 3); [L38] const SORT_41 msb_SORT_41 = (SORT_41)1 << (3 - 1); [L40] const SORT_289 mask_SORT_289 = (SORT_289)-1 >> (sizeof(SORT_289) * 8 - 2); [L41] const SORT_289 msb_SORT_289 = (SORT_289)1 << (2 - 1); [L43] const SORT_293 mask_SORT_293 = (SORT_293)-1 >> (sizeof(SORT_293) * 8 - 5); [L44] const SORT_293 msb_SORT_293 = (SORT_293)1 << (5 - 1); [L46] const SORT_295 mask_SORT_295 = (SORT_295)-1 >> (sizeof(SORT_295) * 8 - 6); [L47] const SORT_295 msb_SORT_295 = (SORT_295)1 << (6 - 1); [L49] const SORT_297 mask_SORT_297 = (SORT_297)-1 >> (sizeof(SORT_297) * 8 - 7); [L50] const SORT_297 msb_SORT_297 = (SORT_297)1 << (7 - 1); [L52] const SORT_299 mask_SORT_299 = (SORT_299)-1 >> (sizeof(SORT_299) * 8 - 8); [L53] const SORT_299 msb_SORT_299 = (SORT_299)1 << (8 - 1); [L55] const SORT_301 mask_SORT_301 = (SORT_301)-1 >> (sizeof(SORT_301) * 8 - 9); [L56] const SORT_301 msb_SORT_301 = (SORT_301)1 << (9 - 1); [L58] const SORT_303 mask_SORT_303 = (SORT_303)-1 >> (sizeof(SORT_303) * 8 - 10); [L59] const SORT_303 msb_SORT_303 = (SORT_303)1 << (10 - 1); [L61] const SORT_305 mask_SORT_305 = (SORT_305)-1 >> (sizeof(SORT_305) * 8 - 11); [L62] const SORT_305 msb_SORT_305 = (SORT_305)1 << (11 - 1); [L64] const SORT_1 var_16 = 0; [L65] const SORT_6 var_21 = 0; [L66] const SORT_37 var_39 = 0; [L67] const SORT_41 var_42 = 0; [L68] const SORT_41 var_45 = 6; [L69] const SORT_41 var_47 = 7; [L70] const SORT_6 var_53 = 1; [L71] const SORT_11 var_57 = 2; [L72] const SORT_11 var_62 = 9; [L73] const SORT_11 var_70 = 15; [L74] const SORT_11 var_75 = 1; [L75] const SORT_11 var_77 = 3; [L76] const SORT_11 var_80 = 5; [L77] const SORT_11 var_83 = 7; [L78] const SORT_11 var_86 = 11; [L79] const SORT_11 var_108 = 8; [L80] const SORT_11 var_112 = 10; [L81] const SORT_11 var_116 = 13; [L82] const SORT_11 var_127 = 4; [L83] const SORT_11 var_129 = 12; [L84] const SORT_11 var_132 = 14; [L85] const SORT_11 var_138 = 6; [L86] const SORT_11 var_165 = 0; [L87] const SORT_41 var_209 = 1; [L88] const SORT_41 var_211 = 5; [L89] const SORT_1 var_229 = 4095; [L90] const SORT_1 var_569 = 1; [L91] const SORT_305 var_577 = 0; [L93] SORT_1 input_2; [L94] SORT_1 input_3; [L95] SORT_1 input_4; [L96] SORT_1 input_5; [L97] SORT_6 input_7; [L98] SORT_6 input_8; [L99] SORT_6 input_9; [L100] SORT_1 input_10; [L101] SORT_11 input_12; [L102] SORT_6 input_13; [L103] SORT_6 input_14; [L104] SORT_6 input_15; [L105] SORT_1 input_216; [L106] SORT_41 input_219; [L108] SORT_1 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L109] SORT_1 state_19 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L110] SORT_1 state_23 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L111] SORT_1 state_25 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L112] SORT_1 state_29 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L113] SORT_1 state_31 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L114] SORT_41 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_41; [L115] SORT_1 state_59 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L116] SORT_1 state_125 = __VERIFIER_nondet_ushort() & mask_SORT_1; [L118] SORT_1 init_18_arg_1 = var_16; [L119] state_17 = init_18_arg_1 [L120] SORT_1 init_20_arg_1 = var_16; [L121] state_19 = init_20_arg_1 [L122] SORT_1 init_24_arg_1 = var_16; [L123] state_23 = init_24_arg_1 [L124] SORT_1 init_26_arg_1 = var_16; [L125] state_25 = init_26_arg_1 [L126] SORT_1 init_30_arg_1 = var_16; [L127] state_29 = init_30_arg_1 [L128] SORT_1 init_32_arg_1 = var_16; [L129] state_31 = init_32_arg_1 [L130] SORT_41 init_44_arg_1 = var_42; [L131] state_43 = init_44_arg_1 [L132] SORT_1 init_60_arg_1 = var_16; [L133] state_59 = init_60_arg_1 [L134] SORT_1 init_126_arg_1 = var_16; [L135] state_125 = init_126_arg_1 VAL [init_126_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_44_arg_1=0, init_60_arg_1=0, mask_SORT_1=4095, mask_SORT_11=15, mask_SORT_289=3, mask_SORT_293=31, mask_SORT_295=63, mask_SORT_297=127, mask_SORT_299=255, mask_SORT_301=511, mask_SORT_303=1023, mask_SORT_305=2047, mask_SORT_37=4294967295, mask_SORT_41=7, mask_SORT_6=1, msb_SORT_1=2048, msb_SORT_11=8, msb_SORT_289=2, msb_SORT_293=16, msb_SORT_295=32, msb_SORT_297=64, msb_SORT_299=128, msb_SORT_301=256, msb_SORT_303=512, msb_SORT_305=1024, msb_SORT_37=2147483648, msb_SORT_41=4, msb_SORT_6=1, state_125=0, state_17=0, state_19=0, state_23=0, state_25=0, state_29=0, state_31=0, state_43=0, state_59=0, var_108=8, var_112=10, var_116=13, var_127=4, var_129=12, var_132=14, var_138=6, var_16=0, var_165=0, var_209=1, var_21=0, var_211=5, var_229=4095, var_39=0, var_42=0, var_45=6, var_47=7, var_53=1, var_569=1, var_57=2, var_577=0, var_62=9, var_70=15, var_75=1, var_77=3, var_80=5, var_83=7, var_86=11] [L138] input_2 = __VERIFIER_nondet_ushort() [L139] input_3 = __VERIFIER_nondet_ushort() [L140] input_4 = __VERIFIER_nondet_ushort() [L141] input_5 = __VERIFIER_nondet_ushort() [L142] input_7 = __VERIFIER_nondet_uchar() [L143] input_8 = __VERIFIER_nondet_uchar() [L144] input_9 = __VERIFIER_nondet_uchar() [L145] input_9 = input_9 & mask_SORT_6 [L146] input_10 = __VERIFIER_nondet_ushort() [L147] input_12 = __VERIFIER_nondet_uchar() [L148] input_12 = input_12 & mask_SORT_11 [L149] input_13 = __VERIFIER_nondet_uchar() [L150] input_14 = __VERIFIER_nondet_uchar() [L151] input_15 = __VERIFIER_nondet_uchar() [L152] input_216 = __VERIFIER_nondet_ushort() [L153] input_219 = __VERIFIER_nondet_uchar() [L156] SORT_6 var_34_arg_0 = var_21; [L157] SORT_1 var_34_arg_1 = input_5; [L158] SORT_1 var_34_arg_2 = input_4; [L159] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L160] SORT_6 var_33_arg_0 = var_21; [L161] SORT_1 var_33_arg_1 = state_31; [L162] SORT_1 var_33_arg_2 = state_29; [L163] SORT_1 var_33 = var_33_arg_0 ? var_33_arg_1 : var_33_arg_2; [L164] SORT_6 var_35_arg_0 = var_21; [L165] SORT_1 var_35_arg_1 = var_34; [L166] SORT_1 var_35_arg_2 = var_33; [L167] SORT_1 var_35 = var_35_arg_0 ? var_35_arg_1 : var_35_arg_2; [L168] SORT_6 var_27_arg_0 = var_21; [L169] SORT_1 var_27_arg_1 = state_25; [L170] SORT_1 var_27_arg_2 = state_23; [L171] SORT_1 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L172] SORT_6 var_22_arg_0 = var_21; [L173] SORT_1 var_22_arg_1 = state_19; [L174] SORT_1 var_22_arg_2 = state_17; [L175] SORT_1 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L176] SORT_6 var_28_arg_0 = var_21; [L177] SORT_1 var_28_arg_1 = var_27; [L178] SORT_1 var_28_arg_2 = var_22; [L179] SORT_1 var_28 = var_28_arg_0 ? var_28_arg_1 : var_28_arg_2; [L180] SORT_6 var_36_arg_0 = var_21; [L181] SORT_1 var_36_arg_1 = var_35; [L182] SORT_1 var_36_arg_2 = var_28; [L183] SORT_1 var_36 = var_36_arg_0 ? var_36_arg_1 : var_36_arg_2; [L184] SORT_1 var_38_arg_0 = var_36; [L185] var_38_arg_0 = var_38_arg_0 & mask_SORT_1 [L186] SORT_37 var_38 = var_38_arg_0; [L187] SORT_37 var_40_arg_0 = var_38; [L188] SORT_37 var_40_arg_1 = var_39; [L189] SORT_6 var_40 = var_40_arg_0 == var_40_arg_1; [L190] SORT_41 var_46_arg_0 = state_43; [L191] SORT_41 var_46_arg_1 = var_45; [L192] SORT_6 var_46 = var_46_arg_0 != var_46_arg_1; [L193] SORT_41 var_48_arg_0 = state_43; [L194] SORT_41 var_48_arg_1 = var_47; [L195] SORT_6 var_48 = var_48_arg_0 != var_48_arg_1; [L196] SORT_6 var_49_arg_0 = var_46; [L197] SORT_6 var_49_arg_1 = var_48; [L198] SORT_6 var_49 = var_49_arg_0 | var_49_arg_1; [L199] SORT_6 var_50_arg_0 = var_40; [L200] SORT_6 var_50_arg_1 = var_49; [L201] SORT_6 var_50 = var_50_arg_0 & var_50_arg_1; [L202] SORT_6 var_54_arg_0 = var_50; [L203] SORT_6 var_54 = ~var_54_arg_0; [L204] SORT_6 var_55_arg_0 = var_53; [L205] SORT_6 var_55_arg_1 = var_54; [L206] SORT_6 var_55 = var_55_arg_0 & var_55_arg_1; [L207] var_55 = var_55 & mask_SORT_6 [L208] SORT_6 bad_56_arg_0 = var_55; [L209] CALL __VERIFIER_assert(!(bad_56_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 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 [2022-11-23 14:23:41,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/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_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:23:44,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:23:44,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:23:44,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:23:44,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:23:44,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:23:44,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:23:44,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:23:44,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:23:44,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:23:44,674 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:23:44,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:23:44,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:23:44,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:23:44,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:23:44,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:23:44,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:23:44,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:23:44,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:23:44,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:23:44,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:23:44,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:23:44,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:23:44,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:23:44,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:23:44,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:23:44,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:23:44,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:23:44,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:23:44,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:23:44,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:23:44,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:23:44,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:23:44,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:23:44,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:23:44,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:23:44,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:23:44,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:23:44,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:23:44,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:23:44,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:23:44,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:23:44,765 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:23:44,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:23:44,766 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:23:44,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:23:44,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:23:44,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:23:44,768 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:23:44,769 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:23:44,769 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:23:44,769 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:23:44,770 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:23:44,770 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:23:44,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:23:44,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:23:44,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:23:44,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:23:44,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:23:44,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:23:44,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:23:44,774 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:23:44,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:23:44,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:23:44,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:23:44,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:23:44,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:23:44,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:23:44,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:44,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:23:44,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:23:44,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:23:44,778 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:23:44,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:23:44,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:23:44,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:23:44,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:23:44,780 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_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 958b2cff64b8fceb0cc12cf5dd7a9dde08c134b5c0d92789485d456e6d4fd48a [2022-11-23 14:23:45,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:23:45,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:23:45,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:23:45,273 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:23:45,273 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:23:45,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-11-23 14:23:49,014 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:23:49,404 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:23:49,405 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-11-23 14:23:49,432 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data/3a44d5a3e/9a3ba30fd8914b6585fa20d6aac18245/FLAG28160f543 [2022-11-23 14:23:49,461 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/data/3a44d5a3e/9a3ba30fd8914b6585fa20d6aac18245 [2022-11-23 14:23:49,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:23:49,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:23:49,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:49,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:23:49,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:23:49,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:49" (1/1) ... [2022-11-23 14:23:49,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785d98da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:49, skipping insertion in model container [2022-11-23 14:23:49,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:49" (1/1) ... [2022-11-23 14:23:49,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:23:49,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:23:49,762 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_958c0f3d-7950-487c-a731-22ce164e06cd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-11-23 14:23:50,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:50,192 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:23:50,217 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_958c0f3d-7950-487c-a731-22ce164e06cd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_am2910_p1.c[1107,1120] [2022-11-23 14:23:50,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:50,420 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:23:50,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50 WrapperNode [2022-11-23 14:23:50,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:50,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:50,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:23:50,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:23:50,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,646 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1754 [2022-11-23 14:23:50,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:50,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:23:50,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:23:50,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:23:50,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,791 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:23:50,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:23:50,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:23:50,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:23:50,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (1/1) ... [2022-11-23 14:23:50,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:50,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:50,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:23:50,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:23:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:23:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:23:51,591 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:23:51,594 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:55,270 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:55,286 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:55,286 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:23:55,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:55 BoogieIcfgContainer [2022-11-23 14:23:55,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:55,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:55,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:55,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:55,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:49" (1/3) ... [2022-11-23 14:23:55,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431c0b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:55, skipping insertion in model container [2022-11-23 14:23:55,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:50" (2/3) ... [2022-11-23 14:23:55,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431c0b03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:55, skipping insertion in model container [2022-11-23 14:23:55,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:55" (3/3) ... [2022-11-23 14:23:55,300 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_am2910_p1.c [2022-11-23 14:23:55,322 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:55,322 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:23:55,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:55,390 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;@63bd4060, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:55,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:23:55,396 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:55,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:23:55,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:55,404 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:23:55,405 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:55,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:23:55,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:55,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138208066] [2022-11-23 14:23:55,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:55,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:55,440 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:55,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 14:23:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:55,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-23 14:23:55,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:56,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:23:56,252 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:56,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138208066] [2022-11-23 14:23:56,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138208066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:56,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:56,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:23:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444563543] [2022-11-23 14:23:56,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:56,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:23:56,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:56,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:23:56,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:23:56,292 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:56,790 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 14:23:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:23:56,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:23:56,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:56,803 INFO L225 Difference]: With dead ends: 20 [2022-11-23 14:23:56,803 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:23:56,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:23:56,810 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:56,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 14:23:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:23:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 14:23:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 14:23:56,879 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 14:23:56,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:56,889 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 14:23:56,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:23:56,890 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 14:23:56,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:23:56,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:56,891 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:56,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-23 14:23:57,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:57,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:23:57,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:57,104 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 14:23:57,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:57,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849912843] [2022-11-23 14:23:57,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:57,108 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 14:23:57,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:57,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 14:23:57,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_958c0f3d-7950-487c-a731-22ce164e06cd/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:23:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:58,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 1610 conjuncts, 235 conjunts are in the unsatisfiable core [2022-11-23 14:23:58,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:24:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:24:01,948 INFO L328 TraceCheckSpWp]: Computing backward predicates...