./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:29:23,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:29:23,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:29:23,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:29:23,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:29:23,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:29:23,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:29:23,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:29:23,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:29:23,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:29:23,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:29:23,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:29:23,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:29:23,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:29:23,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:29:23,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:29:23,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:29:23,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:29:23,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:29:23,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:29:23,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:29:23,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:29:23,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:29:23,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:29:23,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:29:23,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:29:23,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:29:23,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:29:23,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:29:23,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:29:23,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:29:23,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:29:23,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:29:23,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:29:23,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:29:23,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:29:23,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:29:23,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:29:23,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:29:23,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:29:23,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:29:23,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:29:23,343 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:29:23,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:29:23,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:29:23,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:29:23,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:29:23,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:29:23,347 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:29:23,348 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:29:23,348 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:29:23,348 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:29:23,349 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:29:23,349 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:29:23,350 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:29:23,350 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:29:23,350 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:29:23,350 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:29:23,351 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:29:23,351 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:29:23,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:29:23,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:29:23,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:29:23,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:29:23,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:29:23,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:29:23,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:29:23,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:29:23,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:29:23,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:29:23,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:29:23,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:29:23,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:29:23,355 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:29:23,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:29:23,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:29:23,356 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:29:23,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:29:23,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:29:23,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:29:23,357 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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 [2022-11-22 02:29:23,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:29:23,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:29:23,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:29:23,654 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:29:23,654 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:29:23,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-22 02:29:26,788 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:29:27,198 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:29:27,199 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-22 02:29:27,221 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data/8d07455a3/3ecebfc471a642d0a38b83036a82ae54/FLAG06695a1c9 [2022-11-22 02:29:27,236 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data/8d07455a3/3ecebfc471a642d0a38b83036a82ae54 [2022-11-22 02:29:27,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:29:27,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:29:27,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:29:27,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:29:27,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:29:27,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:29:27" (1/1) ... [2022-11-22 02:29:27,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778cd7ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:27, skipping insertion in model container [2022-11-22 02:29:27,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:29:27" (1/1) ... [2022-11-22 02:29:27,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:29:27,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:29:27,587 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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-22 02:29:28,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:29:28,068 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:29:28,079 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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-22 02:29:28,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:29:28,190 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:29:28,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28 WrapperNode [2022-11-22 02:29:28,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:29:28,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:29:28,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:29:28,192 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:29:28,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,402 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2317 [2022-11-22 02:29:28,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:29:28,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:29:28,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:29:28,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:29:28,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:29:28,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:29:28,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:29:28,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:29:28,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (1/1) ... [2022-11-22 02:29:28,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:29:28,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:29:28,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:29:28,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:29:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:29:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:29:29,328 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:29:29,330 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:38:06,716 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:38:06,796 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:38:06,796 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:38:06,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:06 BoogieIcfgContainer [2022-11-22 02:38:06,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:38:06,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:38:06,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:38:06,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:38:06,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:29:27" (1/3) ... [2022-11-22 02:38:06,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb00336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:06, skipping insertion in model container [2022-11-22 02:38:06,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:29:28" (2/3) ... [2022-11-22 02:38:06,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb00336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:06, skipping insertion in model container [2022-11-22 02:38:06,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:06" (3/3) ... [2022-11-22 02:38:06,824 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-22 02:38:06,855 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:38:06,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:38:06,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:38:06,935 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;@538c7c7a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:38:06,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:38:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:06,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:38:06,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:06,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:38:06,949 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:38:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-22 02:38:06,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:38:06,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971239199] [2022-11-22 02:38:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:06,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:38:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:38:07,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:38:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:38:07,688 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:38:07,690 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:38:07,691 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:38:07,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:38:07,698 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:38:07,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:38:07,747 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 02:38:07,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:38:07 BoogieIcfgContainer [2022-11-22 02:38:07,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:38:07,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:38:07,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:38:07,771 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:38:07,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:06" (3/4) ... [2022-11-22 02:38:07,776 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:38:07,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:38:07,778 INFO L158 Benchmark]: Toolchain (without parser) took 520536.57ms. Allocated memory was 184.5MB in the beginning and 1.0GB in the end (delta: 843.1MB). Free memory was 136.4MB in the beginning and 913.6MB in the end (delta: -777.3MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2022-11-22 02:38:07,778 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:38:07,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 949.07ms. Allocated memory is still 184.5MB. Free memory was 136.4MB in the beginning and 117.3MB in the end (delta: 19.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-11-22 02:38:07,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 211.21ms. Allocated memory is still 184.5MB. Free memory was 117.3MB in the beginning and 88.7MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-22 02:38:07,781 INFO L158 Benchmark]: Boogie Preprocessor took 273.89ms. Allocated memory is still 184.5MB. Free memory was 88.7MB in the beginning and 122.0MB in the end (delta: -33.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2022-11-22 02:38:07,785 INFO L158 Benchmark]: RCFGBuilder took 518120.63ms. Allocated memory was 184.5MB in the beginning and 1.0GB in the end (delta: 843.1MB). Free memory was 122.0MB in the beginning and 366.9MB in the end (delta: -244.9MB). Peak memory consumption was 631.2MB. Max. memory is 16.1GB. [2022-11-22 02:38:07,787 INFO L158 Benchmark]: TraceAbstraction took 951.54ms. Allocated memory is still 1.0GB. Free memory was 365.8MB in the beginning and 913.6MB in the end (delta: -547.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:38:07,787 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 1.0GB. Free memory is still 913.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:38:07,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 949.07ms. Allocated memory is still 184.5MB. Free memory was 136.4MB in the beginning and 117.3MB in the end (delta: 19.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 211.21ms. Allocated memory is still 184.5MB. Free memory was 117.3MB in the beginning and 88.7MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 273.89ms. Allocated memory is still 184.5MB. Free memory was 88.7MB in the beginning and 122.0MB in the end (delta: -33.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * RCFGBuilder took 518120.63ms. Allocated memory was 184.5MB in the beginning and 1.0GB in the end (delta: 843.1MB). Free memory was 122.0MB in the beginning and 366.9MB in the end (delta: -244.9MB). Peak memory consumption was 631.2MB. Max. memory is 16.1GB. * TraceAbstraction took 951.54ms. Allocated memory is still 1.0GB. Free memory was 365.8MB in the beginning and 913.6MB in the end (delta: -547.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 1.0GB. Free memory is still 913.6MB. 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 299, overapproximation of bitwiseAnd at line 215. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_22 = 0; [L39] const SORT_4 var_85 = 1; [L40] const SORT_4 var_86 = 0; [L41] const SORT_2 var_95 = 0; [L42] const SORT_2 var_96 = 255; [L43] const SORT_2 var_108 = 1; [L44] const SORT_2 var_132 = 2; [L45] const SORT_3 var_169 = 0; [L46] const SORT_4 var_337 = 3; [L47] const SORT_2 var_348 = 3; [L49] SORT_1 input_99; [L50] SORT_1 input_101; [L51] SORT_1 input_103; [L52] SORT_1 input_104; [L53] SORT_1 input_105; [L54] SORT_1 input_107; [L55] SORT_1 input_118; [L56] SORT_1 input_119; [L57] SORT_1 input_121; [L58] SORT_1 input_130; [L59] SORT_1 input_131; [L60] SORT_1 input_135; [L61] SORT_1 input_145; [L62] SORT_1 input_146; [L63] SORT_1 input_147; [L64] SORT_1 input_153; [L65] SORT_1 input_154; [L66] SORT_1 input_155; [L67] SORT_1 input_156; [L68] SORT_1 input_157; [L69] SORT_1 input_158; [L70] SORT_1 input_168; [L71] SORT_1 input_176; [L72] SORT_1 input_183; [L73] SORT_1 input_191; [L74] SORT_1 input_193; [L75] SORT_1 input_197; [L76] SORT_1 input_199; [L77] SORT_1 input_208; [L78] SORT_1 input_222; [L79] SORT_1 input_233; [L80] SORT_1 input_235; [L81] SORT_1 input_239; [L82] SORT_1 input_241; [L83] SORT_1 input_250; [L84] SORT_1 input_264; [L85] SORT_1 input_275; [L86] SORT_1 input_277; [L87] SORT_1 input_281; [L88] SORT_1 input_283; [L89] SORT_1 input_292; [L90] SORT_1 input_306; [L92] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_2 init_7_arg_1 = var_5; [L133] state_6 = init_7_arg_1 [L134] SORT_2 init_9_arg_1 = var_5; [L135] state_8 = init_9_arg_1 [L136] SORT_2 init_11_arg_1 = var_5; [L137] state_10 = init_11_arg_1 [L138] SORT_2 init_13_arg_1 = var_5; [L139] state_12 = init_13_arg_1 [L140] SORT_2 init_15_arg_1 = var_5; [L141] state_14 = init_15_arg_1 [L142] SORT_2 init_17_arg_1 = var_5; [L143] state_16 = init_17_arg_1 [L144] SORT_2 init_19_arg_1 = var_5; [L145] state_18 = init_19_arg_1 [L146] SORT_2 init_21_arg_1 = var_5; [L147] state_20 = init_21_arg_1 [L148] SORT_1 init_24_arg_1 = var_22; [L149] state_23 = init_24_arg_1 [L150] SORT_1 init_26_arg_1 = var_22; [L151] state_25 = init_26_arg_1 [L152] SORT_1 init_28_arg_1 = var_22; [L153] state_27 = init_28_arg_1 [L154] SORT_1 init_30_arg_1 = var_22; [L155] state_29 = init_30_arg_1 [L156] SORT_1 init_32_arg_1 = var_22; [L157] state_31 = init_32_arg_1 [L158] SORT_1 init_34_arg_1 = var_22; [L159] state_33 = init_34_arg_1 [L160] SORT_1 init_36_arg_1 = var_22; [L161] state_35 = init_36_arg_1 [L162] SORT_1 init_38_arg_1 = var_22; [L163] state_37 = init_38_arg_1 [L164] SORT_1 init_40_arg_1 = var_22; [L165] state_39 = init_40_arg_1 [L166] SORT_1 init_42_arg_1 = var_22; [L167] state_41 = init_42_arg_1 [L168] SORT_1 init_44_arg_1 = var_22; [L169] state_43 = init_44_arg_1 [L170] SORT_1 init_46_arg_1 = var_22; [L171] state_45 = init_46_arg_1 [L172] SORT_1 init_48_arg_1 = var_22; [L173] state_47 = init_48_arg_1 [L174] SORT_1 init_50_arg_1 = var_22; [L175] state_49 = init_50_arg_1 [L176] SORT_1 init_52_arg_1 = var_22; [L177] state_51 = init_52_arg_1 [L178] SORT_1 init_54_arg_1 = var_22; [L179] state_53 = init_54_arg_1 [L180] SORT_1 init_56_arg_1 = var_22; [L181] state_55 = init_56_arg_1 [L182] SORT_1 init_58_arg_1 = var_22; [L183] state_57 = init_58_arg_1 [L184] SORT_1 init_60_arg_1 = var_22; [L185] state_59 = init_60_arg_1 [L186] SORT_1 init_62_arg_1 = var_22; [L187] state_61 = init_62_arg_1 [L188] SORT_1 init_64_arg_1 = var_22; [L189] state_63 = init_64_arg_1 [L190] SORT_1 init_66_arg_1 = var_22; [L191] state_65 = init_66_arg_1 [L192] SORT_1 init_68_arg_1 = var_22; [L193] state_67 = init_68_arg_1 [L194] SORT_1 init_70_arg_1 = var_22; [L195] state_69 = init_70_arg_1 [L196] SORT_1 init_72_arg_1 = var_22; [L197] state_71 = init_72_arg_1 [L198] SORT_1 init_74_arg_1 = var_22; [L199] state_73 = init_74_arg_1 [L200] SORT_1 init_76_arg_1 = var_22; [L201] state_75 = init_76_arg_1 [L202] SORT_1 init_78_arg_1 = var_22; [L203] state_77 = init_78_arg_1 [L204] SORT_1 init_80_arg_1 = var_22; [L205] state_79 = init_80_arg_1 [L206] SORT_1 init_82_arg_1 = var_22; [L207] state_81 = init_82_arg_1 [L208] SORT_1 init_84_arg_1 = var_22; [L209] state_83 = init_84_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, var_108=1, var_132=2, var_169=0, var_22=0, var_337=3, var_348=3, var_5=0, var_85=1, var_86=0, var_95=0, var_96=255] [L212] input_99 = __VERIFIER_nondet_uchar() [L213] input_101 = __VERIFIER_nondet_uchar() [L214] input_103 = __VERIFIER_nondet_uchar() [L215] input_103 = input_103 & mask_SORT_1 [L216] input_104 = __VERIFIER_nondet_uchar() [L217] input_104 = input_104 & mask_SORT_1 [L218] input_105 = __VERIFIER_nondet_uchar() [L219] input_107 = __VERIFIER_nondet_uchar() [L220] input_107 = input_107 & mask_SORT_1 [L221] input_118 = __VERIFIER_nondet_uchar() [L222] input_118 = input_118 & mask_SORT_1 [L223] input_119 = __VERIFIER_nondet_uchar() [L224] input_119 = input_119 & mask_SORT_1 [L225] input_121 = __VERIFIER_nondet_uchar() [L226] input_121 = input_121 & mask_SORT_1 [L227] input_130 = __VERIFIER_nondet_uchar() [L228] input_130 = input_130 & mask_SORT_1 [L229] input_131 = __VERIFIER_nondet_uchar() [L230] input_131 = input_131 & mask_SORT_1 [L231] input_135 = __VERIFIER_nondet_uchar() [L232] input_135 = input_135 & mask_SORT_1 [L233] input_145 = __VERIFIER_nondet_uchar() [L234] input_145 = input_145 & mask_SORT_1 [L235] input_146 = __VERIFIER_nondet_uchar() [L236] input_146 = input_146 & mask_SORT_1 [L237] input_147 = __VERIFIER_nondet_uchar() [L238] input_147 = input_147 & mask_SORT_1 [L239] input_153 = __VERIFIER_nondet_uchar() [L240] input_153 = input_153 & mask_SORT_1 [L241] input_154 = __VERIFIER_nondet_uchar() [L242] input_154 = input_154 & mask_SORT_1 [L243] input_155 = __VERIFIER_nondet_uchar() [L244] input_155 = input_155 & mask_SORT_1 [L245] input_156 = __VERIFIER_nondet_uchar() [L246] input_156 = input_156 & mask_SORT_1 [L247] input_157 = __VERIFIER_nondet_uchar() [L248] input_157 = input_157 & mask_SORT_1 [L249] input_158 = __VERIFIER_nondet_uchar() [L250] input_158 = input_158 & mask_SORT_1 [L251] input_168 = __VERIFIER_nondet_uchar() [L252] input_168 = input_168 & mask_SORT_1 [L253] input_176 = __VERIFIER_nondet_uchar() [L254] input_176 = input_176 & mask_SORT_1 [L255] input_183 = __VERIFIER_nondet_uchar() [L256] input_183 = input_183 & mask_SORT_1 [L257] input_191 = __VERIFIER_nondet_uchar() [L258] input_193 = __VERIFIER_nondet_uchar() [L259] input_197 = __VERIFIER_nondet_uchar() [L260] input_199 = __VERIFIER_nondet_uchar() [L261] input_208 = __VERIFIER_nondet_uchar() [L262] input_222 = __VERIFIER_nondet_uchar() [L263] input_233 = __VERIFIER_nondet_uchar() [L264] input_235 = __VERIFIER_nondet_uchar() [L265] input_239 = __VERIFIER_nondet_uchar() [L266] input_241 = __VERIFIER_nondet_uchar() [L267] input_250 = __VERIFIER_nondet_uchar() [L268] input_264 = __VERIFIER_nondet_uchar() [L269] input_275 = __VERIFIER_nondet_uchar() [L270] input_277 = __VERIFIER_nondet_uchar() [L271] input_281 = __VERIFIER_nondet_uchar() [L272] input_283 = __VERIFIER_nondet_uchar() [L273] input_292 = __VERIFIER_nondet_uchar() [L274] input_306 = __VERIFIER_nondet_uchar() [L277] SORT_1 var_87_arg_0 = state_25; [L278] SORT_4 var_87_arg_1 = var_85; [L279] SORT_4 var_87_arg_2 = var_86; [L280] SORT_4 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L281] SORT_1 var_88_arg_0 = state_45; [L282] SORT_4 var_88_arg_1 = var_85; [L283] SORT_4 var_88_arg_2 = var_86; [L284] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L285] SORT_4 var_89_arg_0 = var_87; [L286] SORT_4 var_89_arg_1 = var_88; [L287] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L288] SORT_1 var_90_arg_0 = state_65; [L289] SORT_4 var_90_arg_1 = var_85; [L290] SORT_4 var_90_arg_2 = var_86; [L291] SORT_4 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L292] SORT_4 var_91_arg_0 = var_89; [L293] SORT_4 var_91_arg_1 = var_90; [L294] SORT_4 var_91 = var_91_arg_0 + var_91_arg_1; [L295] var_91 = var_91 & mask_SORT_4 [L296] SORT_4 var_92_arg_0 = var_91; [L297] SORT_4 var_92_arg_1 = var_85; [L298] SORT_1 var_92 = var_92_arg_0 <= var_92_arg_1; [L299] SORT_1 var_93_arg_0 = ~state_83; [L300] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L301] SORT_1 var_93_arg_1 = ~var_92; [L302] var_93_arg_1 = var_93_arg_1 & mask_SORT_1 [L303] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L304] var_93 = var_93 & mask_SORT_1 [L305] SORT_1 bad_94_arg_0 = var_93; [L306] CALL __VERIFIER_assert(!(bad_94_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: 0.8s, 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 02:38:07,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:38:10,571 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:38:10,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:38:10,641 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:38:10,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:38:10,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:38:10,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:38:10,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:38:10,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:38:10,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:38:10,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:38:10,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:38:10,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:38:10,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:38:10,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:38:10,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:38:10,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:38:10,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:38:10,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:38:10,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:38:10,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:38:10,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:38:10,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:38:10,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:38:10,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:38:10,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:38:10,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:38:10,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:38:10,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:38:10,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:38:10,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:38:10,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:38:10,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:38:10,718 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:38:10,719 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:38:10,719 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:38:10,720 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:38:10,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:38:10,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:38:10,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:38:10,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:38:10,724 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 02:38:10,773 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:38:10,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:38:10,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:38:10,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:38:10,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:38:10,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:38:10,777 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:38:10,778 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:38:10,778 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:38:10,778 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:38:10,780 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:38:10,780 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:38:10,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:38:10,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:38:10,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:38:10,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:38:10,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:38:10,782 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:38:10,783 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:38:10,783 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:38:10,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:38:10,783 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:38:10,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:38:10,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:38:10,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:38:10,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:38:10,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:38:10,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:38:10,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:38:10,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:38:10,786 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:38:10,786 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:38:10,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:38:10,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:38:10,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:38:10,787 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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 [2022-11-22 02:38:11,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:38:11,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:38:11,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:38:11,308 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:38:11,309 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:38:11,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-22 02:38:14,506 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:38:14,862 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:38:14,863 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-22 02:38:14,900 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data/1c3a3ec92/d280a3958877463398bb298e0b8c954d/FLAGaa6e45156 [2022-11-22 02:38:14,917 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/data/1c3a3ec92/d280a3958877463398bb298e0b8c954d [2022-11-22 02:38:14,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:38:14,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:38:14,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:38:14,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:38:14,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:38:14,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:14" (1/1) ... [2022-11-22 02:38:14,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ba979b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:14, skipping insertion in model container [2022-11-22 02:38:14,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:38:14" (1/1) ... [2022-11-22 02:38:14,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:38:15,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:38:15,266 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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-22 02:38:15,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:38:15,778 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:38:15,789 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_4bfab05d-2235-4574-a21d-cbcbe6c4c901/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-22 02:38:15,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:38:15,991 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:38:15,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15 WrapperNode [2022-11-22 02:38:15,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:38:15,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:38:15,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:38:15,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:38:16,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,150 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2317 [2022-11-22 02:38:16,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:38:16,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:38:16,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:38:16,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:38:16,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,206 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,292 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:38:16,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:38:16,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:38:16,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:38:16,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (1/1) ... [2022-11-22 02:38:16,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:38:16,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:38:16,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:38:16,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:38:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:38:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:38:16,971 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:38:16,973 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:38:21,824 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:38:21,831 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:38:21,831 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:38:21,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:21 BoogieIcfgContainer [2022-11-22 02:38:21,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:38:21,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:38:21,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:38:21,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:38:21,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:38:14" (1/3) ... [2022-11-22 02:38:21,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a229e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:21, skipping insertion in model container [2022-11-22 02:38:21,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:38:15" (2/3) ... [2022-11-22 02:38:21,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248a229e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:38:21, skipping insertion in model container [2022-11-22 02:38:21,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:38:21" (3/3) ... [2022-11-22 02:38:21,842 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-22 02:38:21,861 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:38:21,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:38:21,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:38:21,916 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;@25fb11a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:38:21,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:38:21,921 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:38:21,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:21,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:38:21,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:38:21,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:21,934 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 02:38:21,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:38:21,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406524794] [2022-11-22 02:38:21,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:21,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:38:21,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:38:21,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:38:21,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:38:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:22,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 02:38:22,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:38:22,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:22,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:38:22,810 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:38:22,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406524794] [2022-11-22 02:38:22,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406524794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:38:22,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:38:22,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:38:22,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447737834] [2022-11-22 02:38:22,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:38:22,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:38:22,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:38:22,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:38:22,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:38:22,848 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:38:23,181 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 02:38:23,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:38:23,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:38:23,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:38:23,193 INFO L225 Difference]: With dead ends: 20 [2022-11-22 02:38:23,193 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:38:23,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:38:23,200 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:38:23,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:38:23,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:38:23,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 02:38:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 02:38:23,236 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 02:38:23,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:38:23,237 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 02:38:23,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:38:23,238 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 02:38:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:38:23,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:38:23,238 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:38:23,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:38:23,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:38:23,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:38:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:38:23,463 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 02:38:23,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:38:23,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095702061] [2022-11-22 02:38:23,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:38:23,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:38:23,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:38:23,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:38:23,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 02:38:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:38:24,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-22 02:38:24,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:38:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:38:28,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:39:04,087 WARN L233 SmtUtils]: Spent 28.45s on a formula simplification that was a NOOP. DAG size: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:39:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:05,437 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:39:05,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095702061] [2022-11-22 02:39:05,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095702061] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:39:05,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [276838094] [2022-11-22 02:39:05,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:39:05,444 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:39:05,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:39:05,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:39:05,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 02:39:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:39:07,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 196 conjunts are in the unsatisfiable core [2022-11-22 02:39:07,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:39:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:39:10,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:40:37,929 WARN L233 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 125 DAG size of output: 90 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:41:59,237 WARN L233 SmtUtils]: Spent 1.12m on a formula simplification that was a NOOP. DAG size: 445 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:42:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:01,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [276838094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:42:01,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820149168] [2022-11-22 02:42:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:01,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:42:01,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:42:01,354 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:42:01,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bfab05d-2235-4574-a21d-cbcbe6c4c901/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:42:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:02,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 199 conjunts are in the unsatisfiable core [2022-11-22 02:42:02,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:42:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:42:04,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:42:44,935 WARN L233 SmtUtils]: Spent 31.55s on a formula simplification. DAG size of input: 85 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:44:17,247 WARN L233 SmtUtils]: Spent 1.13m on a formula simplification that was a NOOP. DAG size: 435 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)