./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:34:57,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:34:57,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:34:58,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:34:58,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:34:58,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:34:58,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:34:58,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:34:58,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:34:58,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:34:58,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:34:58,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:34:58,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:34:58,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:34:58,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:34:58,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:34:58,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:34:58,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:34:58,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:34:58,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:34:58,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:34:58,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:34:58,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:34:58,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:34:58,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:34:58,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:34:58,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:34:58,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:34:58,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:34:58,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:34:58,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:34:58,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:34:58,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:34:58,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:34:58,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:34:58,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:34:58,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:34:58,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:34:58,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:34:58,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:34:58,061 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:34:58,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 00:34:58,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:34:58,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:34:58,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:34:58,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:34:58,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:34:58,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:34:58,106 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:34:58,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:34:58,106 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:34:58,107 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:34:58,108 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:34:58,108 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:34:58,108 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:34:58,108 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:34:58,109 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:34:58,109 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:34:58,109 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:34:58,110 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:34:58,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:34:58,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:34:58,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:34:58,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:34:58,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:34:58,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:34:58,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:34:58,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:34:58,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:34:58,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:34:58,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:34:58,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:34:58,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:34:58,114 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:34:58,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:34:58,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:34:58,115 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:34:58,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:34:58,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:34:58,116 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:34:58,116 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_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 [2022-11-22 00:34:58,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:34:58,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:34:58,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:34:58,467 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:34:58,467 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:34:58,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-11-22 00:35:01,519 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:35:01,759 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:35:01,760 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-11-22 00:35:01,770 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data/ce3b5d15a/346595f51fbe473187228c920aa844d9/FLAGc6b3b7cbd [2022-11-22 00:35:01,784 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data/ce3b5d15a/346595f51fbe473187228c920aa844d9 [2022-11-22 00:35:01,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:35:01,788 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:35:01,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:01,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:35:01,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:35:01,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:01" (1/1) ... [2022-11-22 00:35:01,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4854b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:01, skipping insertion in model container [2022-11-22 00:35:01,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:01" (1/1) ... [2022-11-22 00:35:01,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:35:01,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:35:02,010 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-11-22 00:35:02,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:02,122 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:35:02,133 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-11-22 00:35:02,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:02,231 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:35:02,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02 WrapperNode [2022-11-22 00:35:02,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:02,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:02,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:35:02,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:35:02,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,308 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 420 [2022-11-22 00:35:02,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:02,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:35:02,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:35:02,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:35:02,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,357 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:35:02,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:35:02,366 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:35:02,366 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:35:02,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (1/1) ... [2022-11-22 00:35:02,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:02,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:02,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:35:02,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:35:02,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:35:02,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:35:02,598 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:35:02,600 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:35:03,633 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:35:03,664 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:35:03,665 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:35:03,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:03 BoogieIcfgContainer [2022-11-22 00:35:03,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:35:03,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:35:03,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:35:03,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:35:03,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:35:01" (1/3) ... [2022-11-22 00:35:03,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b99bea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:03, skipping insertion in model container [2022-11-22 00:35:03,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:02" (2/3) ... [2022-11-22 00:35:03,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b99bea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:03, skipping insertion in model container [2022-11-22 00:35:03,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:03" (3/3) ... [2022-11-22 00:35:03,679 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vlunc.c [2022-11-22 00:35:03,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:35:03,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:35:03,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:35:03,768 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;@55fef326, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:35:03,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:35:03,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:35:03,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:03,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:35:03,780 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:35:03,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-22 00:35:03,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:35:03,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387652950] [2022-11-22 00:35:03,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:03,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:35:04,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:35:04,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:35:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:35:05,269 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:35:05,274 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:35:05,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:35:05,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:35:05,283 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 00:35:05,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:35:05,328 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 00:35:05,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:35:05 BoogieIcfgContainer [2022-11-22 00:35:05,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:35:05,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:35:05,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:35:05,355 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:35:05,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:03" (3/4) ... [2022-11-22 00:35:05,361 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:35:05,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:35:05,363 INFO L158 Benchmark]: Toolchain (without parser) took 3574.73ms. Allocated memory was 132.1MB in the beginning and 207.6MB in the end (delta: 75.5MB). Free memory was 65.9MB in the beginning and 66.9MB in the end (delta: -1.0MB). Peak memory consumption was 74.7MB. Max. memory is 16.1GB. [2022-11-22 00:35:05,363 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:35:05,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.07ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 65.7MB in the beginning and 130.7MB in the end (delta: -65.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-22 00:35:05,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.31ms. Allocated memory is still 172.0MB. Free memory was 130.7MB in the beginning and 125.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:35:05,371 INFO L158 Benchmark]: Boogie Preprocessor took 54.65ms. Allocated memory is still 172.0MB. Free memory was 125.7MB in the beginning and 123.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:35:05,372 INFO L158 Benchmark]: RCFGBuilder took 1301.64ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 123.2MB in the beginning and 99.9MB in the end (delta: 23.2MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2022-11-22 00:35:05,374 INFO L158 Benchmark]: TraceAbstraction took 1682.12ms. Allocated memory is still 207.6MB. Free memory was 98.9MB in the beginning and 67.9MB in the end (delta: 31.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2022-11-22 00:35:05,375 INFO L158 Benchmark]: Witness Printer took 7.68ms. Allocated memory is still 207.6MB. Free memory was 67.9MB in the beginning and 66.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:35:05,383 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.07ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 65.7MB in the beginning and 130.7MB in the end (delta: -65.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.31ms. Allocated memory is still 172.0MB. Free memory was 130.7MB in the beginning and 125.7MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.65ms. Allocated memory is still 172.0MB. Free memory was 125.7MB in the beginning and 123.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1301.64ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 123.2MB in the beginning and 99.9MB in the end (delta: 23.2MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1682.12ms. Allocated memory is still 207.6MB. Free memory was 98.9MB in the beginning and 67.9MB in the end (delta: 31.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 7.68ms. Allocated memory is still 207.6MB. Free memory was 67.9MB in the beginning and 66.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 206, overapproximation of bitwiseOr at line 132, overapproximation of bitwiseAnd at line 84. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 32); [L32] const SORT_9 msb_SORT_9 = (SORT_9)1 << (32 - 1); [L34] const SORT_1 var_6 = 0; [L35] const SORT_9 var_11 = 1; [L36] const SORT_1 var_28 = 1; [L37] const SORT_3 var_59 = 0; [L38] const SORT_3 var_62 = 27; [L39] const SORT_3 var_71 = 85; [L40] const SORT_3 var_74 = 67; [L41] const SORT_3 var_77 = 78; [L43] SORT_1 input_2; [L44] SORT_3 input_4; [L45] SORT_1 input_5; [L46] SORT_3 input_65; [L47] SORT_1 input_70; [L48] SORT_1 input_82; [L49] SORT_1 input_85; [L50] SORT_1 input_89; [L51] SORT_1 input_98; [L52] SORT_1 input_101; [L53] SORT_1 input_105; [L54] SORT_1 input_114; [L55] SORT_1 input_117; [L56] SORT_1 input_121; [L57] SORT_1 input_130; [L58] SORT_1 input_133; [L60] SORT_1 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L62] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L64] SORT_3 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L65] SORT_3 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L67] SORT_1 init_8_arg_1 = var_6; [L68] state_7 = init_8_arg_1 [L69] SORT_1 init_14_arg_1 = var_6; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_21_arg_1 = var_6; [L72] state_20 = init_21_arg_1 [L73] SORT_1 init_30_arg_1 = var_28; [L74] state_29 = init_30_arg_1 [L75] SORT_3 init_61_arg_1 = var_59; [L76] state_60 = init_61_arg_1 [L77] SORT_3 init_69_arg_1 = var_59; [L78] state_68 = init_69_arg_1 VAL [init_14_arg_1=0, init_21_arg_1=0, init_30_arg_1=1, init_61_arg_1=0, init_69_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, mask_SORT_9=4294967295, msb_SORT_1=1, msb_SORT_3=128, msb_SORT_9=2147483648, state_13=0, state_20=0, state_29=1, state_60=0, state_68=0, state_7=0, var_11=1, var_28=1, var_59=0, var_6=0, var_62=27, var_71=85, var_74=67, var_77=78] [L81] input_2 = __VERIFIER_nondet_uchar() [L82] input_4 = __VERIFIER_nondet_uchar() [L83] input_5 = __VERIFIER_nondet_uchar() [L84] input_5 = input_5 & mask_SORT_1 [L85] input_65 = __VERIFIER_nondet_uchar() [L86] input_70 = __VERIFIER_nondet_uchar() [L87] input_82 = __VERIFIER_nondet_uchar() [L88] input_85 = __VERIFIER_nondet_uchar() [L89] input_89 = __VERIFIER_nondet_uchar() [L90] input_98 = __VERIFIER_nondet_uchar() [L91] input_101 = __VERIFIER_nondet_uchar() [L92] input_105 = __VERIFIER_nondet_uchar() [L93] input_114 = __VERIFIER_nondet_uchar() [L94] input_117 = __VERIFIER_nondet_uchar() [L95] input_121 = __VERIFIER_nondet_uchar() [L96] input_130 = __VERIFIER_nondet_uchar() [L97] input_133 = __VERIFIER_nondet_uchar() [L100] SORT_1 var_10_arg_0 = state_7; [L101] var_10_arg_0 = var_10_arg_0 & mask_SORT_1 [L102] SORT_9 var_10 = var_10_arg_0; [L103] SORT_9 var_12_arg_0 = var_10; [L104] SORT_9 var_12_arg_1 = var_11; [L105] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L106] SORT_1 var_15_arg_0 = state_13; [L107] var_15_arg_0 = var_15_arg_0 & mask_SORT_1 [L108] SORT_9 var_15 = var_15_arg_0; [L109] SORT_9 var_16_arg_0 = var_15; [L110] SORT_9 var_16_arg_1 = var_11; [L111] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L112] SORT_1 var_17_arg_0 = var_12; [L113] SORT_1 var_17_arg_1 = var_16; [L114] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L115] SORT_1 var_18_arg_0 = state_7; [L116] var_18_arg_0 = var_18_arg_0 & mask_SORT_1 [L117] SORT_9 var_18 = var_18_arg_0; [L118] SORT_9 var_19_arg_0 = var_18; [L119] SORT_9 var_19_arg_1 = var_11; [L120] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L121] SORT_1 var_22_arg_0 = state_20; [L122] var_22_arg_0 = var_22_arg_0 & mask_SORT_1 [L123] SORT_9 var_22 = var_22_arg_0; [L124] SORT_9 var_23_arg_0 = var_22; [L125] SORT_9 var_23_arg_1 = var_11; [L126] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L127] SORT_1 var_24_arg_0 = var_19; [L128] SORT_1 var_24_arg_1 = var_23; [L129] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L130] SORT_1 var_25_arg_0 = var_17; [L131] SORT_1 var_25_arg_1 = var_24; [L132] SORT_1 var_25 = var_25_arg_0 | var_25_arg_1; [L133] SORT_1 var_26_arg_0 = state_7; [L134] var_26_arg_0 = var_26_arg_0 & mask_SORT_1 [L135] SORT_9 var_26 = var_26_arg_0; [L136] SORT_9 var_27_arg_0 = var_26; [L137] SORT_9 var_27_arg_1 = var_11; [L138] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L139] SORT_1 var_31_arg_0 = state_29; [L140] var_31_arg_0 = var_31_arg_0 & mask_SORT_1 [L141] SORT_9 var_31 = var_31_arg_0; [L142] SORT_9 var_32_arg_0 = var_31; [L143] SORT_9 var_32_arg_1 = var_11; [L144] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L145] SORT_1 var_33_arg_0 = var_27; [L146] SORT_1 var_33_arg_1 = var_32; [L147] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L148] SORT_1 var_34_arg_0 = var_25; [L149] SORT_1 var_34_arg_1 = var_33; [L150] SORT_1 var_34 = var_34_arg_0 | var_34_arg_1; [L151] SORT_1 var_35_arg_0 = state_13; [L152] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 [L153] SORT_9 var_35 = var_35_arg_0; [L154] SORT_9 var_36_arg_0 = var_35; [L155] SORT_9 var_36_arg_1 = var_11; [L156] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L157] SORT_1 var_37_arg_0 = state_20; [L158] var_37_arg_0 = var_37_arg_0 & mask_SORT_1 [L159] SORT_9 var_37 = var_37_arg_0; [L160] SORT_9 var_38_arg_0 = var_37; [L161] SORT_9 var_38_arg_1 = var_11; [L162] SORT_1 var_38 = var_38_arg_0 == var_38_arg_1; [L163] SORT_1 var_39_arg_0 = var_36; [L164] SORT_1 var_39_arg_1 = var_38; [L165] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L166] SORT_1 var_40_arg_0 = var_34; [L167] SORT_1 var_40_arg_1 = var_39; [L168] SORT_1 var_40 = var_40_arg_0 | var_40_arg_1; [L169] SORT_1 var_41_arg_0 = state_13; [L170] var_41_arg_0 = var_41_arg_0 & mask_SORT_1 [L171] SORT_9 var_41 = var_41_arg_0; [L172] SORT_9 var_42_arg_0 = var_41; [L173] SORT_9 var_42_arg_1 = var_11; [L174] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L175] SORT_1 var_43_arg_0 = state_29; [L176] var_43_arg_0 = var_43_arg_0 & mask_SORT_1 [L177] SORT_9 var_43 = var_43_arg_0; [L178] SORT_9 var_44_arg_0 = var_43; [L179] SORT_9 var_44_arg_1 = var_11; [L180] SORT_1 var_44 = var_44_arg_0 == var_44_arg_1; [L181] SORT_1 var_45_arg_0 = var_42; [L182] SORT_1 var_45_arg_1 = var_44; [L183] SORT_1 var_45 = var_45_arg_0 & var_45_arg_1; [L184] SORT_1 var_46_arg_0 = var_40; [L185] SORT_1 var_46_arg_1 = var_45; [L186] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L187] SORT_1 var_47_arg_0 = state_20; [L188] var_47_arg_0 = var_47_arg_0 & mask_SORT_1 [L189] SORT_9 var_47 = var_47_arg_0; [L190] SORT_9 var_48_arg_0 = var_47; [L191] SORT_9 var_48_arg_1 = var_11; [L192] SORT_1 var_48 = var_48_arg_0 == var_48_arg_1; [L193] SORT_1 var_49_arg_0 = state_29; [L194] var_49_arg_0 = var_49_arg_0 & mask_SORT_1 [L195] SORT_9 var_49 = var_49_arg_0; [L196] SORT_9 var_50_arg_0 = var_49; [L197] SORT_9 var_50_arg_1 = var_11; [L198] SORT_1 var_50 = var_50_arg_0 == var_50_arg_1; [L199] SORT_1 var_51_arg_0 = var_48; [L200] SORT_1 var_51_arg_1 = var_50; [L201] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L202] SORT_1 var_52_arg_0 = var_46; [L203] SORT_1 var_52_arg_1 = var_51; [L204] SORT_1 var_52 = var_52_arg_0 | var_52_arg_1; [L205] SORT_1 var_53_arg_0 = var_52; [L206] SORT_1 var_53 = ~var_53_arg_0; [L207] SORT_1 var_56_arg_0 = var_53; [L208] SORT_1 var_56 = ~var_56_arg_0; [L209] SORT_1 var_57_arg_0 = var_28; [L210] SORT_1 var_57_arg_1 = var_56; [L211] SORT_1 var_57 = var_57_arg_0 & var_57_arg_1; [L212] var_57 = var_57 & mask_SORT_1 [L213] SORT_1 bad_58_arg_0 = var_57; [L214] CALL __VERIFIER_assert(!(bad_58_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: 1.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 00:35:05,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:35:07,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:35:07,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:35:07,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:35:07,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:35:07,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:35:07,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:35:07,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:35:07,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:35:07,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:35:07,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:35:07,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:35:07,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:35:07,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:35:07,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:35:07,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:35:07,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:35:07,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:35:07,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:35:07,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:35:07,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:35:08,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:35:08,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:35:08,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:35:08,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:35:08,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:35:08,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:35:08,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:35:08,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:35:08,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:35:08,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:35:08,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:35:08,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:35:08,019 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:35:08,020 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:35:08,021 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:35:08,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:35:08,022 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:35:08,022 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:35:08,023 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:35:08,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:35:08,029 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 00:35:08,088 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:35:08,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:35:08,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:35:08,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:35:08,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:35:08,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:35:08,091 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:35:08,092 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:35:08,092 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:35:08,092 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:35:08,093 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:35:08,094 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:35:08,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:35:08,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:35:08,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:35:08,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:35:08,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:35:08,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:35:08,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 00:35:08,096 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 00:35:08,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:35:08,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:35:08,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:35:08,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:35:08,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 00:35:08,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:35:08,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:08,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:35:08,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:35:08,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:35:08,099 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 00:35:08,100 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 00:35:08,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:35:08,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:35:08,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 00:35:08,101 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_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49be4ee23c057d32f8ac5e24c222fef6761d7999dc1116253007afd08a0c1660 [2022-11-22 00:35:08,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:35:08,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:35:08,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:35:08,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:35:08,511 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:35:08,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-11-22 00:35:11,556 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:35:11,841 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:35:11,842 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2022-11-22 00:35:11,850 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data/6e275772b/6f40b78b87314b5388386675ced20c10/FLAG9dd31947c [2022-11-22 00:35:11,889 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/data/6e275772b/6f40b78b87314b5388386675ced20c10 [2022-11-22 00:35:11,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:35:11,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:35:11,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:11,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:35:11,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:35:11,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:11" (1/1) ... [2022-11-22 00:35:11,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cea1a01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:11, skipping insertion in model container [2022-11-22 00:35:11,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:11" (1/1) ... [2022-11-22 00:35:11,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:35:11,944 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:35:12,078 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-11-22 00:35:12,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:12,274 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:35:12,290 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c[1107,1120] [2022-11-22 00:35:12,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:12,388 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:35:12,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12 WrapperNode [2022-11-22 00:35:12,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:12,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:12,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:35:12,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:35:12,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,460 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 420 [2022-11-22 00:35:12,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:12,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:35:12,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:35:12,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:35:12,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,520 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:35:12,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:35:12,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:35:12,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:35:12,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (1/1) ... [2022-11-22 00:35:12,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:12,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:12,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:35:12,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:35:12,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:35:12,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:35:12,891 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:35:12,893 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:35:13,439 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:35:13,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:35:13,454 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:35:13,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:13 BoogieIcfgContainer [2022-11-22 00:35:13,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:35:13,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:35:13,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:35:13,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:35:13,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:35:11" (1/3) ... [2022-11-22 00:35:13,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b0d71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:13, skipping insertion in model container [2022-11-22 00:35:13,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:12" (2/3) ... [2022-11-22 00:35:13,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b0d71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:13, skipping insertion in model container [2022-11-22 00:35:13,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:13" (3/3) ... [2022-11-22 00:35:13,467 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vlunc.c [2022-11-22 00:35:13,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:35:13,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:35:13,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:35:13,546 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;@69a5e040, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:35:13,547 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:35:13,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:13,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:35:13,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:13,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:35:13,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:35:13,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:13,573 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 00:35:13,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:35:13,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229123214] [2022-11-22 00:35:13,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:13,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:35:13,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:35:13,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:35:13,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 00:35:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:13,847 WARN L261 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-22 00:35:13,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:35:14,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:14,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:35:14,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:35:14,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229123214] [2022-11-22 00:35:14,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229123214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:35:14,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:35:14,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:35:14,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498217590] [2022-11-22 00:35:14,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:35:14,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:35:14,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:35:14,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:35:14,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:35:14,636 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:14,750 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 00:35:14,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:35:14,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 00:35:14,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:14,763 INFO L225 Difference]: With dead ends: 20 [2022-11-22 00:35:14,763 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 00:35:14,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:35:14,770 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:14,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:35:14,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 00:35:14,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 00:35:14,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 00:35:14,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 00:35:14,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:14,808 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 00:35:14,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 00:35:14,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:35:14,810 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:14,810 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 00:35:14,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:35:15,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:35:15,025 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:35:15,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:15,025 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 00:35:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:35:15,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [332165425] [2022-11-22 00:35:15,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:15,027 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:35:15,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:35:15,029 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:35:15,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 00:35:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:15,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 126 conjunts are in the unsatisfiable core [2022-11-22 00:35:15,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:35:16,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:16,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:35:20,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:20,722 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:35:20,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [332165425] [2022-11-22 00:35:20,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [332165425] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:35:20,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158943132] [2022-11-22 00:35:20,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:20,728 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:35:20,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:35:20,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:35:20,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 00:35:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:21,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 127 conjunts are in the unsatisfiable core [2022-11-22 00:35:21,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:35:21,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:21,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:35:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:25,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [158943132] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:35:25,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542736023] [2022-11-22 00:35:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:35:25,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:35:25,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:25,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:35:25,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:35:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:35:25,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 179 conjunts are in the unsatisfiable core [2022-11-22 00:35:25,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:35:26,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:26,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:35:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:36,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542736023] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:35:36,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 00:35:36,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 5, 5, 6, 6] total 14 [2022-11-22 00:35:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412794537] [2022-11-22 00:35:36,683 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 00:35:36,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 00:35:36,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:35:36,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 00:35:36,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-11-22 00:35:36,686 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:37,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:35:37,068 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-22 00:35:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:35:37,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 00:35:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:35:37,070 INFO L225 Difference]: With dead ends: 16 [2022-11-22 00:35:37,070 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 00:35:37,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:35:37,072 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:35:37,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:35:37,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 00:35:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-22 00:35:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:37,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 00:35:37,077 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-22 00:35:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:35:37,077 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 00:35:37,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:35:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 00:35:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:35:37,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:35:37,079 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-22 00:35:37,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 00:35:37,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:35:37,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:35:37,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:35:37,694 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:35:37,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:35:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-22 00:35:37,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:35:37,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886401787] [2022-11-22 00:35:37,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 00:35:37,696 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:35:37,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:35:37,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:35:37,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 00:35:38,042 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 00:35:38,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:35:38,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 174 conjunts are in the unsatisfiable core [2022-11-22 00:35:38,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:35:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:35:39,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:35:50,436 WARN L233 SmtUtils]: Spent 6.67s on a formula simplification. DAG size of input: 224 DAG size of output: 188 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:35:58,508 WARN L233 SmtUtils]: Spent 5.04s on a formula simplification. DAG size of input: 310 DAG size of output: 251 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 00:36:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:01,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:36:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886401787] [2022-11-22 00:36:01,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886401787] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:36:01,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1950627190] [2022-11-22 00:36:01,349 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 00:36:01,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:36:01,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:36:01,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:36:01,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 00:36:02,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 00:36:02,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:36:02,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 178 conjunts are in the unsatisfiable core [2022-11-22 00:36:02,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:36:03,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:03,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:36:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:34,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1950627190] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:36:34,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352162594] [2022-11-22 00:36:34,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 00:36:34,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:36:34,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:36:34,539 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:36:34,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:36:34,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 00:36:34,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:36:34,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 173 conjunts are in the unsatisfiable core [2022-11-22 00:36:34,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:36:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:35,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:37:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:37:17,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352162594] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:37:17,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 00:37:17,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 6, 6, 7, 7] total 22 [2022-11-22 00:37:17,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086724423] [2022-11-22 00:37:17,859 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 00:37:17,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 00:37:17,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:37:17,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 00:37:17,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=302, Unknown=16, NotChecked=0, Total=462 [2022-11-22 00:37:17,861 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:18,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:37:18,363 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-22 00:37:18,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:37:18,366 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 00:37:18,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:37:18,366 INFO L225 Difference]: With dead ends: 19 [2022-11-22 00:37:18,366 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 00:37:18,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 83.4s TimeCoverageRelationStatistics Valid=206, Invalid=428, Unknown=16, NotChecked=0, Total=650 [2022-11-22 00:37:18,368 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:37:18,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 32 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:37:18,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 00:37:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-22 00:37:18,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:18,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 00:37:18,374 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-22 00:37:18,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:37:18,375 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 00:37:18,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 22 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:37:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 00:37:18,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 00:37:18,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:37:18,376 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-22 00:37:18,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-11-22 00:37:18,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:37:18,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:37:18,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:37:18,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:37:18,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:37:18,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-22 00:37:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:37:18,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070540808] [2022-11-22 00:37:18,981 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:37:18,981 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 00:37:18,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:37:18,982 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 00:37:18,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-22 00:37:19,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 00:37:19,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:37:19,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 385 conjunts are in the unsatisfiable core [2022-11-22 00:37:19,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:37:40,223 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:37:40,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:38:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:38:06,520 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 00:38:06,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070540808] [2022-11-22 00:38:06,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070540808] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:38:06,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1481289631] [2022-11-22 00:38:06,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:38:06,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 00:38:06,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 00:38:06,525 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 00:38:06,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-22 00:38:07,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 00:38:07,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:38:07,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 388 conjunts are in the unsatisfiable core [2022-11-22 00:38:07,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:38:24,496 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:38:24,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:38:54,540 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 00:38:54,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1481289631] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:38:54,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444840930] [2022-11-22 00:38:54,541 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:38:54,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:38:54,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:38:54,547 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:38:54,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 00:38:54,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 00:38:54,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:38:54,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 378 conjunts are in the unsatisfiable core [2022-11-22 00:38:54,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:39:15,107 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:39:15,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:39:46,729 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 00:39:46,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444840930] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:39:46,730 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 00:39:46,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 9, 8] total 27 [2022-11-22 00:39:46,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849833705] [2022-11-22 00:39:46,730 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 00:39:46,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-22 00:39:46,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 00:39:46,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-22 00:39:46,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2022-11-22 00:39:46,732 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:39:47,494 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-22 00:39:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:39:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 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 14 [2022-11-22 00:39:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:39:47,496 INFO L225 Difference]: With dead ends: 15 [2022-11-22 00:39:47,496 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:39:47,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 49 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-11-22 00:39:47,498 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:39:47,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:39:47,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:39:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:39:47,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:47,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:39:47,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-22 00:39:47,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:39:47,500 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:39:47,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.8518518518518519) internal successors, (50), 27 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:39:47,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:39:47,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:39:47,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:39:47,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 00:39:47,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-22 00:39:47,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-22 00:39:48,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 00:39:48,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:39:48,430 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:39:48,431 INFO L895 garLoopResultBuilder]: At program point L79-2(lines 79 422) the Hoare annotation is: (let ((.cse0 (= (_ bv85 8) |ULTIMATE.start_main_~var_71~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_74~0#1| (_ bv67 8))) (.cse7 (= |ULTIMATE.start_main_~var_77~0#1| (_ bv78 8))) (.cse8 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv1 32))) (.cse9 (= |ULTIMATE.start_main_~var_6~0#1| (_ bv0 8))) (.cse10 (= (_ bv1 8) |ULTIMATE.start_main_~var_28~0#1|))) (or (let ((.cse6 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (let ((.cse3 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_13~0#1|) .cse6))) |ULTIMATE.start_main_~var_11~0#1|))) (.cse4 (not (= |ULTIMATE.start_main_~var_11~0#1| ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_20~0#1|) .cse6)))))) (.cse5 (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_7~0#1|) .cse6))) |ULTIMATE.start_main_~var_11~0#1|)))) (or (and .cse3 .cse4 .cse5) (and (or (and .cse3 .cse4) (and (or .cse3 .cse4) .cse5)) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_29~0#1|) .cse6))) |ULTIMATE.start_main_~var_11~0#1|))))) (exists ((|v_ULTIMATE.start_main_#t~nondet8#1_13| (_ BitVec 8))) (= |ULTIMATE.start_main_~input_5~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet8#1_13|) .cse6)))) .cse7 .cse8 .cse9 .cse10)) (and .cse0 .cse1 (= (_ bv27 8) |ULTIMATE.start_main_~var_62~0#1|) .cse2 (= |ULTIMATE.start_main_~var_59~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~var_59~0#1| |ULTIMATE.start_main_~state_60~0#1|) .cse7 (= (_ bv0 8) |ULTIMATE.start_main_~state_13~0#1|) .cse8 (= |ULTIMATE.start_main_~state_7~0#1| |ULTIMATE.start_main_~var_6~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_68~0#1|) (= |ULTIMATE.start_main_~var_6~0#1| |ULTIMATE.start_main_~state_20~0#1|) (= |ULTIMATE.start_main_~var_28~0#1| |ULTIMATE.start_main_~state_29~0#1|) .cse9 .cse10 (= (_ bv0 8) (bvadd (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))))) [2022-11-22 00:39:48,431 INFO L899 garLoopResultBuilder]: For program point L79-3(lines 79 422) no Hoare annotation was computed. [2022-11-22 00:39:48,431 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 00:39:48,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:39:48,431 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 00:39:48,432 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-22 00:39:48,432 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-22 00:39:48,432 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-22 00:39:48,432 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-22 00:39:48,432 INFO L895 garLoopResultBuilder]: At program point L423(lines 22 424) the Hoare annotation is: false [2022-11-22 00:39:48,435 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-22 00:39:48,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:39:48,446 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] [2022-11-22 00:39:48,453 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] [2022-11-22 00:39:48,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:39:48 BoogieIcfgContainer [2022-11-22 00:39:48,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:39:48,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:39:48,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:39:48,456 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:39:48,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:13" (3/4) ... [2022-11-22 00:39:48,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:39:48,472 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 00:39:48,473 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 00:39:48,474 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:39:48,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && var_74 == 67bv8) && cond == 1bv32) && (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)) || (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) || ((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) || !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_29), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)))) && (\exists v_ULTIMATE.start_main_#t~nondet8#1_13 : bv8 :: input_5 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet8#1_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && var_77 == 78bv8) && var_11 == 1bv32) && var_6 == 0bv8) && 1bv8 == var_28) || (((((((((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && 27bv8 == var_62) && var_74 == 67bv8) && var_59 == 0bv8) && var_59 == state_60) && var_77 == 78bv8) && 0bv8 == state_13) && var_11 == 1bv32) && state_7 == var_6) && 0bv8 == state_68) && var_6 == state_20) && var_28 == state_29) && var_6 == 0bv8) && 1bv8 == var_28) && 0bv8 == ~bvadd128(1bv8, mask_SORT_3)) [2022-11-22 00:39:48,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:39:48,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:39:48,538 INFO L158 Benchmark]: Toolchain (without parser) took 276645.90ms. Allocated memory was 79.7MB in the beginning and 752.9MB in the end (delta: 673.2MB). Free memory was 59.1MB in the beginning and 601.3MB in the end (delta: -542.2MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,539 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:39:48,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.43ms. Allocated memory is still 79.7MB. Free memory was 58.8MB in the beginning and 39.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.44ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 35.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,540 INFO L158 Benchmark]: Boogie Preprocessor took 88.71ms. Allocated memory is still 79.7MB. Free memory was 35.7MB in the beginning and 33.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,540 INFO L158 Benchmark]: RCFGBuilder took 905.49ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 33.1MB in the beginning and 68.1MB in the end (delta: -34.9MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,540 INFO L158 Benchmark]: TraceAbstraction took 274995.37ms. Allocated memory was 102.8MB in the beginning and 752.9MB in the end (delta: 650.1MB). Free memory was 67.2MB in the beginning and 608.7MB in the end (delta: -541.4MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,541 INFO L158 Benchmark]: Witness Printer took 82.54ms. Allocated memory is still 752.9MB. Free memory was 608.7MB in the beginning and 601.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 00:39:48,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.43ms. Allocated memory is still 79.7MB. Free memory was 58.8MB in the beginning and 39.6MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.44ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 35.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.71ms. Allocated memory is still 79.7MB. Free memory was 35.7MB in the beginning and 33.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 905.49ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 33.1MB in the beginning and 68.1MB in the end (delta: -34.9MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * TraceAbstraction took 274995.37ms. Allocated memory was 102.8MB in the beginning and 752.9MB in the end (delta: 650.1MB). Free memory was 67.2MB in the beginning and 608.7MB in the end (delta: -541.4MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. * Witness Printer took 82.54ms. Allocated memory is still 752.9MB. Free memory was 608.7MB in the beginning and 601.3MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 274.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 15 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 114 SyntacticMatches, 11 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 93.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 184 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 384 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 266.4s InterpolantComputationTime, 104 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 184 ConstructedInterpolants, 74 QuantifiedInterpolants, 19883 SizeOfPredicates, 2329 NumberOfNonLiveVariables, 6285 ConjunctsInSsa, 2184 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 33/144 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 79]: Loop Invariant [2022-11-22 00:39:48,550 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] [2022-11-22 00:39:48,551 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet8#1_13,QUANTIFIED] Derived loop invariant: (((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && var_74 == 67bv8) && cond == 1bv32) && (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)) || (((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) && !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) || ((!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11) || !(var_11 == ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_20), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11))) && !(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_29), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_11)))) && (\exists v_ULTIMATE.start_main_#t~nondet8#1_13 : bv8 :: input_5 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet8#1_13), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && var_77 == 78bv8) && var_11 == 1bv32) && var_6 == 0bv8) && 1bv8 == var_28) || (((((((((((((((85bv8 == var_71 && 1bv8 == mask_SORT_1) && 27bv8 == var_62) && var_74 == 67bv8) && var_59 == 0bv8) && var_59 == state_60) && var_77 == 78bv8) && 0bv8 == state_13) && var_11 == 1bv32) && state_7 == var_6) && 0bv8 == state_68) && var_6 == state_20) && var_28 == state_29) && var_6 == 0bv8) && 1bv8 == var_28) && 0bv8 == ~bvadd128(1bv8, mask_SORT_3)) RESULT: Ultimate proved your program to be correct! [2022-11-22 00:39:48,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_618769e0-708c-4850-8b08-2caf5878facf/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE