./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS --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 3cedfd7b65a397dcc569b6f7dcdf20a0979c0a004d2a9b42e86e386badf2347e --- 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-8393723 [2022-11-19 08:01:45,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:01:45,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:01:45,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:01:45,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:01:45,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:01:45,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:01:45,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:01:45,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:01:45,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:01:45,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:01:45,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:01:45,920 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:01:45,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:01:45,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:01:45,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:01:45,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:01:45,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:01:45,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:01:45,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:01:45,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:01:45,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:01:45,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:01:45,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:01:45,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:01:45,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:01:45,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:01:45,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:01:45,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:01:45,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:01:45,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:01:45,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:01:45,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:01:45,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:01:45,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:01:45,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:01:45,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:01:45,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:01:45,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:01:45,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:01:45,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:01:45,981 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:01:46,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:01:46,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:01:46,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:01:46,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:01:46,032 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:01:46,032 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:01:46,032 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:01:46,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:01:46,033 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:01:46,033 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:01:46,034 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:01:46,035 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:01:46,035 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:01:46,035 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:01:46,035 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:01:46,035 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:01:46,036 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:01:46,036 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:01:46,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:01:46,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:01:46,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:01:46,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:01:46,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:01:46,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:01:46,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:01:46,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:01:46,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:01:46,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:01:46,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:01:46,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:01:46,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:01:46,040 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:01:46,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:01:46,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:01:46,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:01:46,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:01:46,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:01:46,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:01:46,041 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_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cedfd7b65a397dcc569b6f7dcdf20a0979c0a004d2a9b42e86e386badf2347e [2022-11-19 08:01:46,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:01:46,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:01:46,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:01:46,428 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:01:46,429 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:01:46,430 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c [2022-11-19 08:01:46,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/5f2a9c2ec/5ea5ef0c33f846ddbcd2a09a5c511073/FLAG226e81ce4 [2022-11-19 08:01:47,207 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:01:47,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c [2022-11-19 08:01:47,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/5f2a9c2ec/5ea5ef0c33f846ddbcd2a09a5c511073/FLAG226e81ce4 [2022-11-19 08:01:47,344 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/5f2a9c2ec/5ea5ef0c33f846ddbcd2a09a5c511073 [2022-11-19 08:01:47,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:01:47,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:01:47,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:01:47,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:01:47,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:01:47,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:47" (1/1) ... [2022-11-19 08:01:47,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad084ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:47, skipping insertion in model container [2022-11-19 08:01:47,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:47" (1/1) ... [2022-11-19 08:01:47,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:01:47,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:01:47,807 WARN L234 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_58c3c031-3925-490f-b58c-dd1c8c43b706/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c[1014,1027] [2022-11-19 08:01:48,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:01:48,519 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:01:48,533 WARN L234 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_58c3c031-3925-490f-b58c-dd1c8c43b706/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c[1014,1027] [2022-11-19 08:01:48,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:01:48,820 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:01:48,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48 WrapperNode [2022-11-19 08:01:48,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:01:48,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:01:48,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:01:48,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:01:48,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:48,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,173 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5517 [2022-11-19 08:01:49,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:01:49,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:01:49,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:01:49,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:01:49,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,503 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:01:49,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:01:49,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:01:49,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:01:49,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ... [2022-11-19 08:01:49,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:01:49,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:01:49,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:01:49,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:01:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:01:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:01:50,597 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:01:50,599 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:02:15,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:02:46,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:02:46,363 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:02:46,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:46 BoogieIcfgContainer [2022-11-19 08:02:46,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:02:46,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:02:46,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:02:46,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:02:46,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:47" (1/3) ... [2022-11-19 08:02:46,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372af3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:46, skipping insertion in model container [2022-11-19 08:02:46,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (2/3) ... [2022-11-19 08:02:46,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372af3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:46, skipping insertion in model container [2022-11-19 08:02:46,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:46" (3/3) ... [2022-11-19 08:02:46,379 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.2.prop1-func-interl.c [2022-11-19 08:02:46,400 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:02:46,401 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:02:46,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:02:46,463 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;@77191491, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:02:46,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:02:46,469 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) [2022-11-19 08:02:46,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:02:46,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:46,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:02:46,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:46,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:46,483 INFO L85 PathProgramCache]: Analyzing trace with hash 100910010, now seen corresponding path program 1 times [2022-11-19 08:02:46,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:46,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422597962] [2022-11-19 08:02:46,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:46,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:02:47,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:02:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:02:47,563 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:02:47,566 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:02:47,567 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:02:47,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:02:47,575 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:02:47,579 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:02:47,649 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 08:02:47,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:02:47 BoogieIcfgContainer [2022-11-19 08:02:47,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:02:47,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:02:47,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:02:47,685 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:02:47,686 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:46" (3/4) ... [2022-11-19 08:02:47,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:02:47,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:02:47,692 INFO L158 Benchmark]: Toolchain (without parser) took 60341.03ms. Allocated memory was 130.0MB in the beginning and 10.1GB in the end (delta: 9.9GB). Free memory was 82.4MB in the beginning and 9.1GB in the end (delta: -9.0GB). Peak memory consumption was 921.3MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,693 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:02:47,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1466.26ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 82.1MB in the beginning and 79.9MB in the end (delta: 2.3MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 351.63ms. Allocated memory is still 167.8MB. Free memory was 79.9MB in the beginning and 76.9MB in the end (delta: 3.0MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,701 INFO L158 Benchmark]: Boogie Preprocessor took 399.38ms. Allocated memory is still 167.8MB. Free memory was 76.9MB in the beginning and 75.8MB in the end (delta: 1.1MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,702 INFO L158 Benchmark]: RCFGBuilder took 56792.82ms. Allocated memory was 167.8MB in the beginning and 10.1GB in the end (delta: 9.9GB). Free memory was 75.8MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 912.1MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,703 INFO L158 Benchmark]: TraceAbstraction took 1313.67ms. Allocated memory is still 10.1GB. Free memory was 9.2GB in the beginning and 9.1GB in the end (delta: 105.9MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,704 INFO L158 Benchmark]: Witness Printer took 5.53ms. Allocated memory is still 10.1GB. Free memory was 9.1GB in the beginning and 9.1GB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:02:47,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1466.26ms. Allocated memory was 130.0MB in the beginning and 167.8MB in the end (delta: 37.7MB). Free memory was 82.1MB in the beginning and 79.9MB in the end (delta: 2.3MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 351.63ms. Allocated memory is still 167.8MB. Free memory was 79.9MB in the beginning and 76.9MB in the end (delta: 3.0MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 399.38ms. Allocated memory is still 167.8MB. Free memory was 76.9MB in the beginning and 75.8MB in the end (delta: 1.1MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. * RCFGBuilder took 56792.82ms. Allocated memory was 167.8MB in the beginning and 10.1GB in the end (delta: 9.9GB). Free memory was 75.8MB in the beginning and 9.2GB in the end (delta: -9.1GB). Peak memory consumption was 912.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1313.67ms. Allocated memory is still 10.1GB. Free memory was 9.2GB in the beginning and 9.1GB in the end (delta: 105.9MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. * Witness Printer took 5.53ms. Allocated memory is still 10.1GB. Free memory was 9.1GB in the beginning and 9.1GB 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.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 425, overapproximation of bitwiseAnd at line 282. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_30 = 0; [L39] const SORT_4 var_111 = 1; [L40] const SORT_4 var_112 = 0; [L41] const SORT_2 var_122 = 0; [L42] const SORT_2 var_124 = 1; [L43] const SORT_3 var_181 = 0; [L44] const SORT_4 var_428 = 3; [L45] const SORT_2 var_439 = 3; [L46] const SORT_2 var_704 = 2; [L47] const SORT_4 var_713 = 2; [L49] SORT_1 input_121; [L50] SORT_1 input_123; [L51] SORT_1 input_128; [L52] SORT_1 input_129; [L53] SORT_1 input_133; [L54] SORT_1 input_134; [L55] SORT_1 input_138; [L56] SORT_1 input_139; [L57] SORT_1 input_144; [L58] SORT_1 input_145; [L59] SORT_1 input_150; [L60] SORT_1 input_151; [L61] SORT_1 input_156; [L62] SORT_1 input_157; [L63] SORT_1 input_158; [L64] SORT_1 input_164; [L65] SORT_1 input_165; [L66] SORT_1 input_166; [L67] SORT_1 input_172; [L68] SORT_1 input_173; [L69] SORT_1 input_174; [L70] SORT_1 input_180; [L71] SORT_1 input_185; [L72] SORT_1 input_186; [L73] SORT_1 input_187; [L74] SORT_1 input_188; [L75] SORT_1 input_189; [L76] SORT_1 input_190; [L77] SORT_1 input_191; [L78] SORT_1 input_192; [L79] SORT_1 input_206; [L80] SORT_1 input_210; [L81] SORT_1 input_211; [L82] SORT_1 input_212; [L83] SORT_1 input_213; [L84] SORT_1 input_214; [L85] SORT_1 input_215; [L86] SORT_1 input_216; [L87] SORT_1 input_217; [L88] SORT_1 input_231; [L89] SORT_1 input_235; [L90] SORT_1 input_236; [L91] SORT_1 input_237; [L92] SORT_1 input_238; [L93] SORT_1 input_239; [L94] SORT_1 input_240; [L95] SORT_1 input_241; [L96] SORT_1 input_242; [L97] SORT_1 input_260; [L98] SORT_1 input_270; [L99] SORT_1 input_274; [L100] SORT_1 input_278; [L101] SORT_1 input_287; [L102] SORT_1 input_293; [L103] SORT_1 input_298; [L104] SORT_1 input_307; [L105] SORT_1 input_317; [L106] SORT_1 input_327; [L107] SORT_1 input_331; [L108] SORT_1 input_335; [L109] SORT_1 input_344; [L110] SORT_1 input_350; [L111] SORT_1 input_355; [L112] SORT_1 input_364; [L113] SORT_1 input_374; [L114] SORT_1 input_384; [L115] SORT_1 input_388; [L116] SORT_1 input_392; [L117] SORT_1 input_401; [L118] SORT_1 input_407; [L119] SORT_1 input_412; [L120] SORT_1 input_421; [L122] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L123] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L124] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L125] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L126] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L127] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L128] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L129] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L130] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L131] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L132] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L133] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L134] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L139] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L142] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L154] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L160] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L161] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L162] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L163] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] SORT_1 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L169] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L170] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L171] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L172] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] SORT_2 init_7_arg_1 = var_5; [L176] state_6 = init_7_arg_1 [L177] SORT_2 init_9_arg_1 = var_5; [L178] state_8 = init_9_arg_1 [L179] SORT_2 init_11_arg_1 = var_5; [L180] state_10 = init_11_arg_1 [L181] SORT_2 init_13_arg_1 = var_5; [L182] state_12 = init_13_arg_1 [L183] SORT_2 init_15_arg_1 = var_5; [L184] state_14 = init_15_arg_1 [L185] SORT_2 init_17_arg_1 = var_5; [L186] state_16 = init_17_arg_1 [L187] SORT_2 init_19_arg_1 = var_5; [L188] state_18 = init_19_arg_1 [L189] SORT_2 init_21_arg_1 = var_5; [L190] state_20 = init_21_arg_1 [L191] SORT_2 init_23_arg_1 = var_5; [L192] state_22 = init_23_arg_1 [L193] SORT_2 init_25_arg_1 = var_5; [L194] state_24 = init_25_arg_1 [L195] SORT_2 init_27_arg_1 = var_5; [L196] state_26 = init_27_arg_1 [L197] SORT_2 init_29_arg_1 = var_5; [L198] state_28 = init_29_arg_1 [L199] SORT_1 init_32_arg_1 = var_30; [L200] state_31 = init_32_arg_1 [L201] SORT_1 init_34_arg_1 = var_30; [L202] state_33 = init_34_arg_1 [L203] SORT_1 init_36_arg_1 = var_30; [L204] state_35 = init_36_arg_1 [L205] SORT_1 init_38_arg_1 = var_30; [L206] state_37 = init_38_arg_1 [L207] SORT_1 init_40_arg_1 = var_30; [L208] state_39 = init_40_arg_1 [L209] SORT_1 init_42_arg_1 = var_30; [L210] state_41 = init_42_arg_1 [L211] SORT_1 init_44_arg_1 = var_30; [L212] state_43 = init_44_arg_1 [L213] SORT_1 init_46_arg_1 = var_30; [L214] state_45 = init_46_arg_1 [L215] SORT_1 init_48_arg_1 = var_30; [L216] state_47 = init_48_arg_1 [L217] SORT_1 init_50_arg_1 = var_30; [L218] state_49 = init_50_arg_1 [L219] SORT_1 init_52_arg_1 = var_30; [L220] state_51 = init_52_arg_1 [L221] SORT_1 init_54_arg_1 = var_30; [L222] state_53 = init_54_arg_1 [L223] SORT_1 init_56_arg_1 = var_30; [L224] state_55 = init_56_arg_1 [L225] SORT_1 init_58_arg_1 = var_30; [L226] state_57 = init_58_arg_1 [L227] SORT_1 init_60_arg_1 = var_30; [L228] state_59 = init_60_arg_1 [L229] SORT_1 init_62_arg_1 = var_30; [L230] state_61 = init_62_arg_1 [L231] SORT_1 init_64_arg_1 = var_30; [L232] state_63 = init_64_arg_1 [L233] SORT_1 init_66_arg_1 = var_30; [L234] state_65 = init_66_arg_1 [L235] SORT_1 init_68_arg_1 = var_30; [L236] state_67 = init_68_arg_1 [L237] SORT_1 init_70_arg_1 = var_30; [L238] state_69 = init_70_arg_1 [L239] SORT_1 init_72_arg_1 = var_30; [L240] state_71 = init_72_arg_1 [L241] SORT_1 init_74_arg_1 = var_30; [L242] state_73 = init_74_arg_1 [L243] SORT_1 init_76_arg_1 = var_30; [L244] state_75 = init_76_arg_1 [L245] SORT_1 init_78_arg_1 = var_30; [L246] state_77 = init_78_arg_1 [L247] SORT_1 init_80_arg_1 = var_30; [L248] state_79 = init_80_arg_1 [L249] SORT_1 init_82_arg_1 = var_30; [L250] state_81 = init_82_arg_1 [L251] SORT_1 init_84_arg_1 = var_30; [L252] state_83 = init_84_arg_1 [L253] SORT_1 init_86_arg_1 = var_30; [L254] state_85 = init_86_arg_1 [L255] SORT_1 init_88_arg_1 = var_30; [L256] state_87 = init_88_arg_1 [L257] SORT_1 init_90_arg_1 = var_30; [L258] state_89 = init_90_arg_1 [L259] SORT_1 init_92_arg_1 = var_30; [L260] state_91 = init_92_arg_1 [L261] SORT_1 init_94_arg_1 = var_30; [L262] state_93 = init_94_arg_1 [L263] SORT_1 init_96_arg_1 = var_30; [L264] state_95 = init_96_arg_1 [L265] SORT_1 init_98_arg_1 = var_30; [L266] state_97 = init_98_arg_1 [L267] SORT_1 init_100_arg_1 = var_30; [L268] state_99 = init_100_arg_1 [L269] SORT_1 init_102_arg_1 = var_30; [L270] state_101 = init_102_arg_1 [L271] SORT_1 init_104_arg_1 = var_30; [L272] state_103 = init_104_arg_1 [L273] SORT_1 init_106_arg_1 = var_30; [L274] state_105 = init_106_arg_1 [L275] SORT_1 init_108_arg_1 = var_30; [L276] state_107 = init_108_arg_1 [L277] SORT_1 init_110_arg_1 = var_30; [L278] state_109 = init_110_arg_1 VAL [init_100_arg_1=0, init_102_arg_1=0, init_104_arg_1=0, init_106_arg_1=0, init_108_arg_1=0, init_110_arg_1=0, init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_101=0, state_103=0, state_105=0, state_107=0, state_109=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, state_99=0, var_111=1, var_112=0, var_122=0, var_124=1, var_181=0, var_30=0, var_428=3, var_439=3, var_5=0, var_704=2, var_713=2] [L281] input_121 = __VERIFIER_nondet_uchar() [L282] input_121 = input_121 & mask_SORT_1 [L283] input_123 = __VERIFIER_nondet_uchar() [L284] input_123 = input_123 & mask_SORT_1 [L285] input_128 = __VERIFIER_nondet_uchar() [L286] input_128 = input_128 & mask_SORT_1 [L287] input_129 = __VERIFIER_nondet_uchar() [L288] input_129 = input_129 & mask_SORT_1 [L289] input_133 = __VERIFIER_nondet_uchar() [L290] input_133 = input_133 & mask_SORT_1 [L291] input_134 = __VERIFIER_nondet_uchar() [L292] input_134 = input_134 & mask_SORT_1 [L293] input_138 = __VERIFIER_nondet_uchar() [L294] input_138 = input_138 & mask_SORT_1 [L295] input_139 = __VERIFIER_nondet_uchar() [L296] input_139 = input_139 & mask_SORT_1 [L297] input_144 = __VERIFIER_nondet_uchar() [L298] input_144 = input_144 & mask_SORT_1 [L299] input_145 = __VERIFIER_nondet_uchar() [L300] input_145 = input_145 & mask_SORT_1 [L301] input_150 = __VERIFIER_nondet_uchar() [L302] input_150 = input_150 & mask_SORT_1 [L303] input_151 = __VERIFIER_nondet_uchar() [L304] input_151 = input_151 & mask_SORT_1 [L305] input_156 = __VERIFIER_nondet_uchar() [L306] input_156 = input_156 & mask_SORT_1 [L307] input_157 = __VERIFIER_nondet_uchar() [L308] input_157 = input_157 & mask_SORT_1 [L309] input_158 = __VERIFIER_nondet_uchar() [L310] input_158 = input_158 & mask_SORT_1 [L311] input_164 = __VERIFIER_nondet_uchar() [L312] input_164 = input_164 & mask_SORT_1 [L313] input_165 = __VERIFIER_nondet_uchar() [L314] input_165 = input_165 & mask_SORT_1 [L315] input_166 = __VERIFIER_nondet_uchar() [L316] input_166 = input_166 & mask_SORT_1 [L317] input_172 = __VERIFIER_nondet_uchar() [L318] input_172 = input_172 & mask_SORT_1 [L319] input_173 = __VERIFIER_nondet_uchar() [L320] input_173 = input_173 & mask_SORT_1 [L321] input_174 = __VERIFIER_nondet_uchar() [L322] input_174 = input_174 & mask_SORT_1 [L323] input_180 = __VERIFIER_nondet_uchar() [L324] input_180 = input_180 & mask_SORT_1 [L325] input_185 = __VERIFIER_nondet_uchar() [L326] input_185 = input_185 & mask_SORT_1 [L327] input_186 = __VERIFIER_nondet_uchar() [L328] input_186 = input_186 & mask_SORT_1 [L329] input_187 = __VERIFIER_nondet_uchar() [L330] input_187 = input_187 & mask_SORT_1 [L331] input_188 = __VERIFIER_nondet_uchar() [L332] input_188 = input_188 & mask_SORT_1 [L333] input_189 = __VERIFIER_nondet_uchar() [L334] input_189 = input_189 & mask_SORT_1 [L335] input_190 = __VERIFIER_nondet_uchar() [L336] input_190 = input_190 & mask_SORT_1 [L337] input_191 = __VERIFIER_nondet_uchar() [L338] input_191 = input_191 & mask_SORT_1 [L339] input_192 = __VERIFIER_nondet_uchar() [L340] input_192 = input_192 & mask_SORT_1 [L341] input_206 = __VERIFIER_nondet_uchar() [L342] input_206 = input_206 & mask_SORT_1 [L343] input_210 = __VERIFIER_nondet_uchar() [L344] input_210 = input_210 & mask_SORT_1 [L345] input_211 = __VERIFIER_nondet_uchar() [L346] input_211 = input_211 & mask_SORT_1 [L347] input_212 = __VERIFIER_nondet_uchar() [L348] input_212 = input_212 & mask_SORT_1 [L349] input_213 = __VERIFIER_nondet_uchar() [L350] input_213 = input_213 & mask_SORT_1 [L351] input_214 = __VERIFIER_nondet_uchar() [L352] input_214 = input_214 & mask_SORT_1 [L353] input_215 = __VERIFIER_nondet_uchar() [L354] input_215 = input_215 & mask_SORT_1 [L355] input_216 = __VERIFIER_nondet_uchar() [L356] input_216 = input_216 & mask_SORT_1 [L357] input_217 = __VERIFIER_nondet_uchar() [L358] input_217 = input_217 & mask_SORT_1 [L359] input_231 = __VERIFIER_nondet_uchar() [L360] input_231 = input_231 & mask_SORT_1 [L361] input_235 = __VERIFIER_nondet_uchar() [L362] input_235 = input_235 & mask_SORT_1 [L363] input_236 = __VERIFIER_nondet_uchar() [L364] input_236 = input_236 & mask_SORT_1 [L365] input_237 = __VERIFIER_nondet_uchar() [L366] input_237 = input_237 & mask_SORT_1 [L367] input_238 = __VERIFIER_nondet_uchar() [L368] input_238 = input_238 & mask_SORT_1 [L369] input_239 = __VERIFIER_nondet_uchar() [L370] input_239 = input_239 & mask_SORT_1 [L371] input_240 = __VERIFIER_nondet_uchar() [L372] input_240 = input_240 & mask_SORT_1 [L373] input_241 = __VERIFIER_nondet_uchar() [L374] input_241 = input_241 & mask_SORT_1 [L375] input_242 = __VERIFIER_nondet_uchar() [L376] input_242 = input_242 & mask_SORT_1 [L377] input_260 = __VERIFIER_nondet_uchar() [L378] input_270 = __VERIFIER_nondet_uchar() [L379] input_274 = __VERIFIER_nondet_uchar() [L380] input_278 = __VERIFIER_nondet_uchar() [L381] input_287 = __VERIFIER_nondet_uchar() [L382] input_293 = __VERIFIER_nondet_uchar() [L383] input_298 = __VERIFIER_nondet_uchar() [L384] input_307 = __VERIFIER_nondet_uchar() [L385] input_317 = __VERIFIER_nondet_uchar() [L386] input_327 = __VERIFIER_nondet_uchar() [L387] input_331 = __VERIFIER_nondet_uchar() [L388] input_335 = __VERIFIER_nondet_uchar() [L389] input_344 = __VERIFIER_nondet_uchar() [L390] input_350 = __VERIFIER_nondet_uchar() [L391] input_355 = __VERIFIER_nondet_uchar() [L392] input_364 = __VERIFIER_nondet_uchar() [L393] input_374 = __VERIFIER_nondet_uchar() [L394] input_384 = __VERIFIER_nondet_uchar() [L395] input_388 = __VERIFIER_nondet_uchar() [L396] input_392 = __VERIFIER_nondet_uchar() [L397] input_401 = __VERIFIER_nondet_uchar() [L398] input_407 = __VERIFIER_nondet_uchar() [L399] input_412 = __VERIFIER_nondet_uchar() [L400] input_421 = __VERIFIER_nondet_uchar() [L403] SORT_1 var_113_arg_0 = state_55; [L404] SORT_4 var_113_arg_1 = var_111; [L405] SORT_4 var_113_arg_2 = var_112; [L406] SORT_4 var_113 = var_113_arg_0 ? var_113_arg_1 : var_113_arg_2; [L407] SORT_1 var_114_arg_0 = state_81; [L408] SORT_4 var_114_arg_1 = var_111; [L409] SORT_4 var_114_arg_2 = var_112; [L410] SORT_4 var_114 = var_114_arg_0 ? var_114_arg_1 : var_114_arg_2; [L411] SORT_4 var_115_arg_0 = var_113; [L412] SORT_4 var_115_arg_1 = var_114; [L413] SORT_4 var_115 = var_115_arg_0 + var_115_arg_1; [L414] SORT_1 var_116_arg_0 = state_107; [L415] SORT_4 var_116_arg_1 = var_111; [L416] SORT_4 var_116_arg_2 = var_112; [L417] SORT_4 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L418] SORT_4 var_117_arg_0 = var_115; [L419] SORT_4 var_117_arg_1 = var_116; [L420] SORT_4 var_117 = var_117_arg_0 + var_117_arg_1; [L421] var_117 = var_117 & mask_SORT_4 [L422] SORT_4 var_118_arg_0 = var_117; [L423] SORT_4 var_118_arg_1 = var_111; [L424] SORT_1 var_118 = var_118_arg_0 <= var_118_arg_1; [L425] SORT_1 var_119_arg_0 = ~state_109; [L426] var_119_arg_0 = var_119_arg_0 & mask_SORT_1 [L427] SORT_1 var_119_arg_1 = ~var_118; [L428] var_119_arg_1 = var_119_arg_1 & mask_SORT_1 [L429] SORT_1 var_119 = var_119_arg_0 & var_119_arg_1; [L430] var_119 = var_119 & mask_SORT_1 [L431] SORT_1 bad_120_arg_0 = var_119; [L432] CALL __VERIFIER_assert(!(bad_120_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: 1.1s, 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: 0.1s SsaConstructionTime, 0.4s 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 [2022-11-19 08:02:47,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS --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 3cedfd7b65a397dcc569b6f7dcdf20a0979c0a004d2a9b42e86e386badf2347e --- 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-8393723 [2022-11-19 08:02:50,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:02:50,503 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:02:50,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:02:50,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:02:50,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:02:50,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:02:50,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:02:50,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:02:50,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:02:50,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:02:50,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:02:50,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:02:50,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:02:50,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:02:50,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:02:50,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:02:50,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:02:50,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:02:50,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:02:50,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:02:50,588 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:02:50,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:02:50,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:02:50,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:02:50,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:02:50,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:02:50,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:02:50,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:02:50,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:02:50,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:02:50,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:02:50,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:02:50,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:02:50,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:02:50,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:02:50,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:02:50,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:02:50,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:02:50,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:02:50,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:02:50,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:02:50,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:02:50,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:02:50,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:02:50,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:02:50,660 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:02:50,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:02:50,661 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:02:50,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:02:50,661 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:02:50,661 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:02:50,662 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:02:50,662 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:02:50,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:02:50,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:02:50,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:02:50,663 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:02:50,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:02:50,664 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:02:50,664 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:02:50,664 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:02:50,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:02:50,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:02:50,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:02:50,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:02:50,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:02:50,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:02:50,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:02:50,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:02:50,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:02:50,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:02:50,668 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:02:50,669 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:50,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:02:50,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:02:50,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:02:50,670 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_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cedfd7b65a397dcc569b6f7dcdf20a0979c0a004d2a9b42e86e386badf2347e [2022-11-19 08:02:51,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:02:51,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:02:51,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:02:51,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:02:51,138 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:02:51,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c [2022-11-19 08:02:51,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/da8054013/cbf1cec045694c0ab859834f6a298d3d/FLAG0a4db2fc3 [2022-11-19 08:02:52,172 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:02:52,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c [2022-11-19 08:02:52,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/da8054013/cbf1cec045694c0ab859834f6a298d3d/FLAG0a4db2fc3 [2022-11-19 08:02:52,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/data/da8054013/cbf1cec045694c0ab859834f6a298d3d [2022-11-19 08:02:52,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:02:52,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:02:52,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:02:52,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:02:52,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:02:52,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:52" (1/1) ... [2022-11-19 08:02:52,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9424b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:52, skipping insertion in model container [2022-11-19 08:02:52,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:52" (1/1) ... [2022-11-19 08:02:52,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:02:52,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:02:52,631 WARN L234 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_58c3c031-3925-490f-b58c-dd1c8c43b706/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c[1014,1027] [2022-11-19 08:02:53,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:02:53,259 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:02:53,271 WARN L234 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_58c3c031-3925-490f-b58c-dd1c8c43b706/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.2.prop1-func-interl.c[1014,1027] [2022-11-19 08:02:53,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:02:53,536 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:02:53,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53 WrapperNode [2022-11-19 08:02:53,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:02:53,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:02:53,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:02:53,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:02:53,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,764 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3662 [2022-11-19 08:02:53,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:02:53,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:02:53,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:02:53,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:02:53,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:53,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:54,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:54,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:02:54,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:02:54,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:02:54,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:02:54,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (1/1) ... [2022-11-19 08:02:54,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:02:54,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:02:54,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:02:54,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:02:54,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:02:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:02:55,075 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:02:55,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:03:03,070 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:03:03,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:03:03,079 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:03:03,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:03 BoogieIcfgContainer [2022-11-19 08:03:03,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:03:03,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:03:03,088 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:03:03,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:03:03,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:52" (1/3) ... [2022-11-19 08:03:03,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6949f5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:03, skipping insertion in model container [2022-11-19 08:03:03,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:53" (2/3) ... [2022-11-19 08:03:03,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6949f5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:03, skipping insertion in model container [2022-11-19 08:03:03,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:03" (3/3) ... [2022-11-19 08:03:03,096 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.2.prop1-func-interl.c [2022-11-19 08:03:03,118 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:03:03,118 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:03:03,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:03:03,206 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;@588a9f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:03:03,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:03:03,211 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) [2022-11-19 08:03:03,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:03:03,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:03,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:03:03,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 08:03:03,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:03,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930556832] [2022-11-19 08:03:03,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:03,244 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 [2022-11-19 08:03:03,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:03,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:03:03,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:03:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:04,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-19 08:03:04,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:04,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:03:04,554 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:04,556 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:04,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930556832] [2022-11-19 08:03:04,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930556832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:04,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:04,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:03:04,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444170920] [2022-11-19 08:03:04,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:04,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:04,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:04,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:04,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:04,621 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) [2022-11-19 08:03:05,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:05,204 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 08:03:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:03:05,208 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 [2022-11-19 08:03:05,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:05,217 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:03:05,218 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 08:03:05,221 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 [2022-11-19 08:03:05,225 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:05,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 08:03:05,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 08:03:05,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 08:03:05,257 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) [2022-11-19 08:03:05,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 08:03:05,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 08:03:05,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:05,260 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 08:03:05,260 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) [2022-11-19 08:03:05,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 08:03:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:03:05,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:05,262 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:05,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:03:05,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:03:05,475 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:05,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:05,476 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 08:03:05,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:05,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1434736279] [2022-11-19 08:03:05,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:05,482 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 [2022-11-19 08:03:05,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:05,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:03:05,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:03:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:07,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 3242 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-19 08:03:07,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:12,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:03:12,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:04:00,935 WARN L233 SmtUtils]: Spent 36.39s on a formula simplification that was a NOOP. DAG size: 555 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:04:03,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:04:03,729 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:04:03,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1434736279] [2022-11-19 08:04:03,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1434736279] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:04:03,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [270316274] [2022-11-19 08:04:03,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:04:03,738 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:04:03,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:04:03,745 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:04:03,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 08:04:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:04:07,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 3242 conjuncts, 191 conjunts are in the unsatisfiable core [2022-11-19 08:04:07,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:04:12,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:04:12,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:06:08,370 WARN L233 SmtUtils]: Spent 1.87m on a formula simplification. DAG size of input: 125 DAG size of output: 97 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:43,725 WARN L233 SmtUtils]: Spent 1.31m on a formula simplification that was a NOOP. DAG size: 465 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:07:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:07:46,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [270316274] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:07:46,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991496906] [2022-11-19 08:07:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:07:46,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:07:46,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:07:46,256 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:07:46,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:07:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:07:47,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 3242 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-19 08:07:47,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:07:50,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:07:50,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:08:13,035 WARN L233 SmtUtils]: Spent 13.58s on a formula simplification. DAG size of input: 85 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:07,290 WARN L233 SmtUtils]: Spent 37.64s on a formula simplification that was a NOOP. DAG size: 432 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:09:59,370 WARN L233 SmtUtils]: Spent 39.32s on a formula simplification that was a NOOP. DAG size: 436 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:10:00,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:00,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991496906] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:10:00,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:10:00,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 16 [2022-11-19 08:10:00,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138579294] [2022-11-19 08:10:00,032 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:10:00,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 08:10:00,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:10:00,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 08:10:00,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=176, Unknown=7, NotChecked=0, Total=240 [2022-11-19 08:10:00,035 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 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) [2022-11-19 08:10:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:10:04,539 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 08:10:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:10:04,540 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 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 [2022-11-19 08:10:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:10:04,541 INFO L225 Difference]: With dead ends: 16 [2022-11-19 08:10:04,541 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 08:10:04,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 391.3s TimeCoverageRelationStatistics Valid=92, Invalid=243, Unknown=7, NotChecked=0, Total=342 [2022-11-19 08:10:04,543 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:10:04,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 31 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 23 Unchecked, 0.5s Time] [2022-11-19 08:10:04,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 08:10:04,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 08:10:04,550 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) [2022-11-19 08:10:04,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 08:10:04,551 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 08:10:04,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:10:04,551 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 08:10:04,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.9375) internal successors, (31), 16 states have internal predecessors, (31), 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) [2022-11-19 08:10:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 08:10:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:10:04,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:10:04,553 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 08:10:04,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-19 08:10:04,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:10:04,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:05,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:05,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:10:05,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:10:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 08:10:05,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:10:05,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321483911] [2022-11-19 08:10:05,167 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:10:05,167 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 [2022-11-19 08:10:05,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:10:05,169 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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) [2022-11-19 08:10:05,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c3c031-3925-490f-b58c-dd1c8c43b706/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:10:07,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:10:07,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:10:07,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 6257 conjuncts, 388 conjunts are in the unsatisfiable core [2022-11-19 08:10:07,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:10:22,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:10:22,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:12:12,295 WARN L233 SmtUtils]: Spent 1.58m on a formula simplification that was a NOOP. DAG size: 427 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)