./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f706846995a459967b03ffd82a5fc7d6a479aa02be4ed6119cde7c985ad25459 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:16:47,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:16:47,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:16:47,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:16:47,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:16:47,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:16:47,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:16:47,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:16:47,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:16:47,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:16:47,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:16:47,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:16:47,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:16:47,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:16:47,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:16:47,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:16:47,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:16:47,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:16:47,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:16:47,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:16:47,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:16:47,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:16:47,491 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:16:47,492 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:16:47,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:16:47,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:16:47,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:16:47,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:16:47,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:16:47,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:16:47,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:16:47,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:16:47,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:16:47,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:16:47,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:16:47,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:16:47,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:16:47,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:16:47,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:16:47,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:16:47,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:16:47,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:16:47,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:16:47,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:16:47,557 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:16:47,557 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:16:47,558 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:16:47,559 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:16:47,559 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:16:47,559 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:16:47,559 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:16:47,559 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:16:47,560 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:16:47,561 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:16:47,561 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:16:47,561 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:16:47,561 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:16:47,562 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:16:47,562 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:16:47,562 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:16:47,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:16:47,563 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:16:47,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:16:47,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:16:47,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:16:47,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:16:47,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:16:47,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:16:47,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:16:47,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:16:47,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:16:47,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:16:47,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:16:47,567 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:16:47,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:16:47,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:16:47,568 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:16:47,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:16:47,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:16:47,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:16:47,568 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_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f706846995a459967b03ffd82a5fc7d6a479aa02be4ed6119cde7c985ad25459 [2022-11-19 07:16:47,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:16:47,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:16:47,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:16:47,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:16:47,867 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:16:47,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c [2022-11-19 07:16:47,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/b661de289/89fdc365183f45e9be403161498b56ed/FLAG71e256a4a [2022-11-19 07:16:48,618 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:16:48,619 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c [2022-11-19 07:16:48,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/b661de289/89fdc365183f45e9be403161498b56ed/FLAG71e256a4a [2022-11-19 07:16:48,790 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/b661de289/89fdc365183f45e9be403161498b56ed [2022-11-19 07:16:48,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:16:48,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:16:48,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:16:48,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:16:48,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:16:48,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:16:48" (1/1) ... [2022-11-19 07:16:48,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49864d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:48, skipping insertion in model container [2022-11-19 07:16:48,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:16:48" (1/1) ... [2022-11-19 07:16:48,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:16:48,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:16:49,195 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:16:49,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:16:49,801 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:16:49,812 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:16:50,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:16:50,062 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:16:50,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50 WrapperNode [2022-11-19 07:16:50,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:16:50,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:16:50,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:16:50,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:16:50,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,416 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5568 [2022-11-19 07:16:50,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:16:50,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:16:50,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:16:50,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:16:50,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,733 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:16:50,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:16:50,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:16:50,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:16:50,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (1/1) ... [2022-11-19 07:16:50,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:16:50,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:16:50,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:16:50,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:16:50,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:16:50,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:16:51,682 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:16:51,684 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:17:11,877 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:17:40,032 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:17:40,033 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:17:40,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:40 BoogieIcfgContainer [2022-11-19 07:17:40,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:17:40,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:17:40,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:17:40,041 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:17:40,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:16:48" (1/3) ... [2022-11-19 07:17:40,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2cd3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:40, skipping insertion in model container [2022-11-19 07:17:40,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:16:50" (2/3) ... [2022-11-19 07:17:40,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2cd3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:40, skipping insertion in model container [2022-11-19 07:17:40,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:40" (3/3) ... [2022-11-19 07:17:40,045 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.7.prop1-func-interl.c [2022-11-19 07:17:40,064 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:17:40,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:17:40,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:17:40,120 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;@3006d28c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:17:40,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:17:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:17:40,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:17:40,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:40,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:17:40,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:40,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:40,136 INFO L85 PathProgramCache]: Analyzing trace with hash 96815961, now seen corresponding path program 1 times [2022-11-19 07:17:40,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:40,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168200590] [2022-11-19 07:17:40,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:40,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:17:40,685 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:17:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:17:41,029 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:17:41,031 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:17:41,032 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:17:41,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:17:41,039 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:17:41,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:17:41,108 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:17:41,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:17:41 BoogieIcfgContainer [2022-11-19 07:17:41,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:17:41,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:17:41,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:17:41,126 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:17:41,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:40" (3/4) ... [2022-11-19 07:17:41,129 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:17:41,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:17:41,131 INFO L158 Benchmark]: Toolchain (without parser) took 52335.19ms. Allocated memory was 107.0MB in the beginning and 11.3GB in the end (delta: 11.2GB). Free memory was 70.9MB in the beginning and 10.4GB in the end (delta: -10.3GB). Peak memory consumption was 833.8MB. Max. memory is 16.1GB. [2022-11-19 07:17:41,132 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:17:41,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1264.63ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 70.7MB in the beginning and 84.1MB in the end (delta: -13.4MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. [2022-11-19 07:17:41,133 INFO L158 Benchmark]: Boogie Procedure Inliner took 352.78ms. Allocated memory is still 144.7MB. Free memory was 84.1MB in the beginning and 57.2MB in the end (delta: 26.9MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-11-19 07:17:41,134 INFO L158 Benchmark]: Boogie Preprocessor took 433.41ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 57.2MB in the beginning and 160.8MB in the end (delta: -103.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-19 07:17:41,134 INFO L158 Benchmark]: RCFGBuilder took 49182.80ms. Allocated memory was 251.7MB in the beginning and 11.3GB in the end (delta: 11.0GB). Free memory was 160.8MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2022-11-19 07:17:41,135 INFO L158 Benchmark]: TraceAbstraction took 1087.57ms. Allocated memory is still 11.3GB. Free memory was 10.5GB in the beginning and 10.4GB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. [2022-11-19 07:17:41,136 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 11.3GB. Free memory is still 10.4GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:17:41,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 107.0MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 48.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1264.63ms. Allocated memory was 107.0MB in the beginning and 144.7MB in the end (delta: 37.7MB). Free memory was 70.7MB in the beginning and 84.1MB in the end (delta: -13.4MB). Peak memory consumption was 57.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 352.78ms. Allocated memory is still 144.7MB. Free memory was 84.1MB in the beginning and 57.2MB in the end (delta: 26.9MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 433.41ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 57.2MB in the beginning and 160.8MB in the end (delta: -103.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * RCFGBuilder took 49182.80ms. Allocated memory was 251.7MB in the beginning and 11.3GB in the end (delta: 11.0GB). Free memory was 160.8MB in the beginning and 10.5GB in the end (delta: -10.4GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. * TraceAbstraction took 1087.57ms. Allocated memory is still 11.3GB. Free memory was 10.5GB in the beginning and 10.4GB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 11.3GB. Free memory is still 10.4GB. 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 462, overapproximation of bitwiseAnd at line 315. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_30 = 0; [L39] const SORT_4 var_133 = 1; [L40] const SORT_4 var_134 = 0; [L41] const SORT_2 var_148 = 0; [L42] const SORT_2 var_152 = 1; [L43] const SORT_2 var_194 = 255; [L44] const SORT_2 var_196 = 4; [L45] const SORT_2 var_198 = 3; [L46] const SORT_2 var_200 = 2; [L47] const SORT_3 var_235 = 0; [L48] const SORT_4 var_502 = 5; [L49] const SORT_2 var_517 = 5; [L51] SORT_1 input_147; [L52] SORT_1 input_149; [L53] SORT_1 input_150; [L54] SORT_1 input_151; [L55] SORT_1 input_158; [L56] SORT_1 input_159; [L57] SORT_1 input_160; [L58] SORT_1 input_161; [L59] SORT_1 input_167; [L60] SORT_1 input_168; [L61] SORT_1 input_169; [L62] SORT_1 input_170; [L63] SORT_1 input_176; [L64] SORT_1 input_177; [L65] SORT_1 input_178; [L66] SORT_1 input_179; [L67] SORT_1 input_185; [L68] SORT_1 input_186; [L69] SORT_1 input_187; [L70] SORT_1 input_188; [L71] SORT_1 input_195; [L72] SORT_1 input_197; [L73] SORT_1 input_199; [L74] SORT_1 input_201; [L75] SORT_1 input_202; [L76] SORT_1 input_211; [L77] SORT_1 input_212; [L78] SORT_1 input_213; [L79] SORT_1 input_214; [L80] SORT_1 input_215; [L81] SORT_1 input_216; [L82] SORT_1 input_217; [L83] SORT_1 input_218; [L84] SORT_1 input_219; [L85] SORT_1 input_220; [L86] SORT_1 input_234; [L87] SORT_1 input_242; [L88] SORT_1 input_249; [L89] SORT_1 input_256; [L90] SORT_1 input_263; [L91] SORT_1 input_271; [L92] SORT_1 input_273; [L93] SORT_1 input_277; [L94] SORT_1 input_279; [L95] SORT_1 input_288; [L96] SORT_1 input_302; [L97] SORT_1 input_313; [L98] SORT_1 input_315; [L99] SORT_1 input_319; [L100] SORT_1 input_321; [L101] SORT_1 input_330; [L102] SORT_1 input_344; [L103] SORT_1 input_355; [L104] SORT_1 input_357; [L105] SORT_1 input_361; [L106] SORT_1 input_363; [L107] SORT_1 input_372; [L108] SORT_1 input_386; [L109] SORT_1 input_397; [L110] SORT_1 input_399; [L111] SORT_1 input_403; [L112] SORT_1 input_405; [L113] SORT_1 input_414; [L114] SORT_1 input_428; [L115] SORT_1 input_439; [L116] SORT_1 input_441; [L117] SORT_1 input_445; [L118] SORT_1 input_447; [L119] SORT_1 input_456; [L120] SORT_1 input_470; [L122] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L123] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L124] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L125] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L126] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L127] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L128] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L129] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L130] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L131] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L132] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L133] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L134] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L139] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L142] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L154] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L160] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L161] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L162] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L163] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] SORT_1 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L169] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L170] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L171] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L172] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] SORT_1 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] SORT_1 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L176] SORT_1 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] SORT_1 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] SORT_1 state_119 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] SORT_1 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] SORT_1 state_123 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] SORT_1 state_125 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] SORT_1 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L183] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L184] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] SORT_2 init_7_arg_1 = var_5; [L187] state_6 = init_7_arg_1 [L188] SORT_2 init_9_arg_1 = var_5; [L189] state_8 = init_9_arg_1 [L190] SORT_2 init_11_arg_1 = var_5; [L191] state_10 = init_11_arg_1 [L192] SORT_2 init_13_arg_1 = var_5; [L193] state_12 = init_13_arg_1 [L194] SORT_2 init_15_arg_1 = var_5; [L195] state_14 = init_15_arg_1 [L196] SORT_2 init_17_arg_1 = var_5; [L197] state_16 = init_17_arg_1 [L198] SORT_2 init_19_arg_1 = var_5; [L199] state_18 = init_19_arg_1 [L200] SORT_2 init_21_arg_1 = var_5; [L201] state_20 = init_21_arg_1 [L202] SORT_2 init_23_arg_1 = var_5; [L203] state_22 = init_23_arg_1 [L204] SORT_2 init_25_arg_1 = var_5; [L205] state_24 = init_25_arg_1 [L206] SORT_2 init_27_arg_1 = var_5; [L207] state_26 = init_27_arg_1 [L208] SORT_2 init_29_arg_1 = var_5; [L209] state_28 = init_29_arg_1 [L210] SORT_1 init_32_arg_1 = var_30; [L211] state_31 = init_32_arg_1 [L212] SORT_1 init_34_arg_1 = var_30; [L213] state_33 = init_34_arg_1 [L214] SORT_1 init_36_arg_1 = var_30; [L215] state_35 = init_36_arg_1 [L216] SORT_1 init_38_arg_1 = var_30; [L217] state_37 = init_38_arg_1 [L218] SORT_1 init_40_arg_1 = var_30; [L219] state_39 = init_40_arg_1 [L220] SORT_1 init_42_arg_1 = var_30; [L221] state_41 = init_42_arg_1 [L222] SORT_1 init_44_arg_1 = var_30; [L223] state_43 = init_44_arg_1 [L224] SORT_1 init_46_arg_1 = var_30; [L225] state_45 = init_46_arg_1 [L226] SORT_1 init_48_arg_1 = var_30; [L227] state_47 = init_48_arg_1 [L228] SORT_1 init_50_arg_1 = var_30; [L229] state_49 = init_50_arg_1 [L230] SORT_1 init_52_arg_1 = var_30; [L231] state_51 = init_52_arg_1 [L232] SORT_1 init_54_arg_1 = var_30; [L233] state_53 = init_54_arg_1 [L234] SORT_1 init_56_arg_1 = var_30; [L235] state_55 = init_56_arg_1 [L236] SORT_1 init_58_arg_1 = var_30; [L237] state_57 = init_58_arg_1 [L238] SORT_1 init_60_arg_1 = var_30; [L239] state_59 = init_60_arg_1 [L240] SORT_1 init_62_arg_1 = var_30; [L241] state_61 = init_62_arg_1 [L242] SORT_1 init_64_arg_1 = var_30; [L243] state_63 = init_64_arg_1 [L244] SORT_1 init_66_arg_1 = var_30; [L245] state_65 = init_66_arg_1 [L246] SORT_1 init_68_arg_1 = var_30; [L247] state_67 = init_68_arg_1 [L248] SORT_1 init_70_arg_1 = var_30; [L249] state_69 = init_70_arg_1 [L250] SORT_1 init_72_arg_1 = var_30; [L251] state_71 = init_72_arg_1 [L252] SORT_1 init_74_arg_1 = var_30; [L253] state_73 = init_74_arg_1 [L254] SORT_1 init_76_arg_1 = var_30; [L255] state_75 = init_76_arg_1 [L256] SORT_1 init_78_arg_1 = var_30; [L257] state_77 = init_78_arg_1 [L258] SORT_1 init_80_arg_1 = var_30; [L259] state_79 = init_80_arg_1 [L260] SORT_1 init_82_arg_1 = var_30; [L261] state_81 = init_82_arg_1 [L262] SORT_1 init_84_arg_1 = var_30; [L263] state_83 = init_84_arg_1 [L264] SORT_1 init_86_arg_1 = var_30; [L265] state_85 = init_86_arg_1 [L266] SORT_1 init_88_arg_1 = var_30; [L267] state_87 = init_88_arg_1 [L268] SORT_1 init_90_arg_1 = var_30; [L269] state_89 = init_90_arg_1 [L270] SORT_1 init_92_arg_1 = var_30; [L271] state_91 = init_92_arg_1 [L272] SORT_1 init_94_arg_1 = var_30; [L273] state_93 = init_94_arg_1 [L274] SORT_1 init_96_arg_1 = var_30; [L275] state_95 = init_96_arg_1 [L276] SORT_1 init_98_arg_1 = var_30; [L277] state_97 = init_98_arg_1 [L278] SORT_1 init_100_arg_1 = var_30; [L279] state_99 = init_100_arg_1 [L280] SORT_1 init_102_arg_1 = var_30; [L281] state_101 = init_102_arg_1 [L282] SORT_1 init_104_arg_1 = var_30; [L283] state_103 = init_104_arg_1 [L284] SORT_1 init_106_arg_1 = var_30; [L285] state_105 = init_106_arg_1 [L286] SORT_1 init_108_arg_1 = var_30; [L287] state_107 = init_108_arg_1 [L288] SORT_1 init_110_arg_1 = var_30; [L289] state_109 = init_110_arg_1 [L290] SORT_1 init_112_arg_1 = var_30; [L291] state_111 = init_112_arg_1 [L292] SORT_1 init_114_arg_1 = var_30; [L293] state_113 = init_114_arg_1 [L294] SORT_1 init_116_arg_1 = var_30; [L295] state_115 = init_116_arg_1 [L296] SORT_1 init_118_arg_1 = var_30; [L297] state_117 = init_118_arg_1 [L298] SORT_1 init_120_arg_1 = var_30; [L299] state_119 = init_120_arg_1 [L300] SORT_1 init_122_arg_1 = var_30; [L301] state_121 = init_122_arg_1 [L302] SORT_1 init_124_arg_1 = var_30; [L303] state_123 = init_124_arg_1 [L304] SORT_1 init_126_arg_1 = var_30; [L305] state_125 = init_126_arg_1 [L306] SORT_1 init_128_arg_1 = var_30; [L307] state_127 = init_128_arg_1 [L308] SORT_1 init_130_arg_1 = var_30; [L309] state_129 = init_130_arg_1 [L310] SORT_1 init_132_arg_1 = var_30; [L311] state_131 = init_132_arg_1 VAL [init_100_arg_1=0, init_102_arg_1=0, init_104_arg_1=0, init_106_arg_1=0, init_108_arg_1=0, init_110_arg_1=0, init_112_arg_1=0, init_114_arg_1=0, init_116_arg_1=0, init_118_arg_1=0, init_11_arg_1=0, init_120_arg_1=0, init_122_arg_1=0, init_124_arg_1=0, init_126_arg_1=0, init_128_arg_1=0, init_130_arg_1=0, init_132_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_96_arg_1=0, init_98_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_101=0, state_103=0, state_105=0, state_107=0, state_109=0, state_111=0, state_113=0, state_115=0, state_117=0, state_119=0, state_12=0, state_121=0, state_123=0, state_125=0, state_127=0, state_129=0, state_131=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, state_95=0, state_97=0, state_99=0, var_133=1, var_134=0, var_148=0, var_152=1, var_194=255, var_196=4, var_198=3, var_200=2, var_235=0, var_30=0, var_5=0, var_502=5, var_517=5] [L314] input_147 = __VERIFIER_nondet_uchar() [L315] input_147 = input_147 & mask_SORT_1 [L316] input_149 = __VERIFIER_nondet_uchar() [L317] input_149 = input_149 & mask_SORT_1 [L318] input_150 = __VERIFIER_nondet_uchar() [L319] input_150 = input_150 & mask_SORT_1 [L320] input_151 = __VERIFIER_nondet_uchar() [L321] input_151 = input_151 & mask_SORT_1 [L322] input_158 = __VERIFIER_nondet_uchar() [L323] input_158 = input_158 & mask_SORT_1 [L324] input_159 = __VERIFIER_nondet_uchar() [L325] input_159 = input_159 & mask_SORT_1 [L326] input_160 = __VERIFIER_nondet_uchar() [L327] input_160 = input_160 & mask_SORT_1 [L328] input_161 = __VERIFIER_nondet_uchar() [L329] input_161 = input_161 & mask_SORT_1 [L330] input_167 = __VERIFIER_nondet_uchar() [L331] input_167 = input_167 & mask_SORT_1 [L332] input_168 = __VERIFIER_nondet_uchar() [L333] input_168 = input_168 & mask_SORT_1 [L334] input_169 = __VERIFIER_nondet_uchar() [L335] input_169 = input_169 & mask_SORT_1 [L336] input_170 = __VERIFIER_nondet_uchar() [L337] input_170 = input_170 & mask_SORT_1 [L338] input_176 = __VERIFIER_nondet_uchar() [L339] input_176 = input_176 & mask_SORT_1 [L340] input_177 = __VERIFIER_nondet_uchar() [L341] input_177 = input_177 & mask_SORT_1 [L342] input_178 = __VERIFIER_nondet_uchar() [L343] input_178 = input_178 & mask_SORT_1 [L344] input_179 = __VERIFIER_nondet_uchar() [L345] input_179 = input_179 & mask_SORT_1 [L346] input_185 = __VERIFIER_nondet_uchar() [L347] input_185 = input_185 & mask_SORT_1 [L348] input_186 = __VERIFIER_nondet_uchar() [L349] input_186 = input_186 & mask_SORT_1 [L350] input_187 = __VERIFIER_nondet_uchar() [L351] input_187 = input_187 & mask_SORT_1 [L352] input_188 = __VERIFIER_nondet_uchar() [L353] input_188 = input_188 & mask_SORT_1 [L354] input_195 = __VERIFIER_nondet_uchar() [L355] input_195 = input_195 & mask_SORT_1 [L356] input_197 = __VERIFIER_nondet_uchar() [L357] input_197 = input_197 & mask_SORT_1 [L358] input_199 = __VERIFIER_nondet_uchar() [L359] input_199 = input_199 & mask_SORT_1 [L360] input_201 = __VERIFIER_nondet_uchar() [L361] input_201 = input_201 & mask_SORT_1 [L362] input_202 = __VERIFIER_nondet_uchar() [L363] input_202 = input_202 & mask_SORT_1 [L364] input_211 = __VERIFIER_nondet_uchar() [L365] input_211 = input_211 & mask_SORT_1 [L366] input_212 = __VERIFIER_nondet_uchar() [L367] input_212 = input_212 & mask_SORT_1 [L368] input_213 = __VERIFIER_nondet_uchar() [L369] input_213 = input_213 & mask_SORT_1 [L370] input_214 = __VERIFIER_nondet_uchar() [L371] input_214 = input_214 & mask_SORT_1 [L372] input_215 = __VERIFIER_nondet_uchar() [L373] input_215 = input_215 & mask_SORT_1 [L374] input_216 = __VERIFIER_nondet_uchar() [L375] input_216 = input_216 & mask_SORT_1 [L376] input_217 = __VERIFIER_nondet_uchar() [L377] input_217 = input_217 & mask_SORT_1 [L378] input_218 = __VERIFIER_nondet_uchar() [L379] input_218 = input_218 & mask_SORT_1 [L380] input_219 = __VERIFIER_nondet_uchar() [L381] input_219 = input_219 & mask_SORT_1 [L382] input_220 = __VERIFIER_nondet_uchar() [L383] input_220 = input_220 & mask_SORT_1 [L384] input_234 = __VERIFIER_nondet_uchar() [L385] input_234 = input_234 & mask_SORT_1 [L386] input_242 = __VERIFIER_nondet_uchar() [L387] input_242 = input_242 & mask_SORT_1 [L388] input_249 = __VERIFIER_nondet_uchar() [L389] input_249 = input_249 & mask_SORT_1 [L390] input_256 = __VERIFIER_nondet_uchar() [L391] input_256 = input_256 & mask_SORT_1 [L392] input_263 = __VERIFIER_nondet_uchar() [L393] input_263 = input_263 & mask_SORT_1 [L394] input_271 = __VERIFIER_nondet_uchar() [L395] input_273 = __VERIFIER_nondet_uchar() [L396] input_277 = __VERIFIER_nondet_uchar() [L397] input_279 = __VERIFIER_nondet_uchar() [L398] input_288 = __VERIFIER_nondet_uchar() [L399] input_302 = __VERIFIER_nondet_uchar() [L400] input_313 = __VERIFIER_nondet_uchar() [L401] input_315 = __VERIFIER_nondet_uchar() [L402] input_319 = __VERIFIER_nondet_uchar() [L403] input_321 = __VERIFIER_nondet_uchar() [L404] input_330 = __VERIFIER_nondet_uchar() [L405] input_344 = __VERIFIER_nondet_uchar() [L406] input_355 = __VERIFIER_nondet_uchar() [L407] input_357 = __VERIFIER_nondet_uchar() [L408] input_361 = __VERIFIER_nondet_uchar() [L409] input_363 = __VERIFIER_nondet_uchar() [L410] input_372 = __VERIFIER_nondet_uchar() [L411] input_386 = __VERIFIER_nondet_uchar() [L412] input_397 = __VERIFIER_nondet_uchar() [L413] input_399 = __VERIFIER_nondet_uchar() [L414] input_403 = __VERIFIER_nondet_uchar() [L415] input_405 = __VERIFIER_nondet_uchar() [L416] input_414 = __VERIFIER_nondet_uchar() [L417] input_428 = __VERIFIER_nondet_uchar() [L418] input_439 = __VERIFIER_nondet_uchar() [L419] input_441 = __VERIFIER_nondet_uchar() [L420] input_445 = __VERIFIER_nondet_uchar() [L421] input_447 = __VERIFIER_nondet_uchar() [L422] input_456 = __VERIFIER_nondet_uchar() [L423] input_470 = __VERIFIER_nondet_uchar() [L426] SORT_1 var_135_arg_0 = state_33; [L427] SORT_4 var_135_arg_1 = var_133; [L428] SORT_4 var_135_arg_2 = var_134; [L429] SORT_4 var_135 = var_135_arg_0 ? var_135_arg_1 : var_135_arg_2; [L430] SORT_1 var_136_arg_0 = state_53; [L431] SORT_4 var_136_arg_1 = var_133; [L432] SORT_4 var_136_arg_2 = var_134; [L433] SORT_4 var_136 = var_136_arg_0 ? var_136_arg_1 : var_136_arg_2; [L434] SORT_4 var_137_arg_0 = var_135; [L435] SORT_4 var_137_arg_1 = var_136; [L436] SORT_4 var_137 = var_137_arg_0 + var_137_arg_1; [L437] SORT_1 var_138_arg_0 = state_73; [L438] SORT_4 var_138_arg_1 = var_133; [L439] SORT_4 var_138_arg_2 = var_134; [L440] SORT_4 var_138 = var_138_arg_0 ? var_138_arg_1 : var_138_arg_2; [L441] SORT_4 var_139_arg_0 = var_137; [L442] SORT_4 var_139_arg_1 = var_138; [L443] SORT_4 var_139 = var_139_arg_0 + var_139_arg_1; [L444] SORT_1 var_140_arg_0 = state_93; [L445] SORT_4 var_140_arg_1 = var_133; [L446] SORT_4 var_140_arg_2 = var_134; [L447] SORT_4 var_140 = var_140_arg_0 ? var_140_arg_1 : var_140_arg_2; [L448] SORT_4 var_141_arg_0 = var_139; [L449] SORT_4 var_141_arg_1 = var_140; [L450] SORT_4 var_141 = var_141_arg_0 + var_141_arg_1; [L451] SORT_1 var_142_arg_0 = state_113; [L452] SORT_4 var_142_arg_1 = var_133; [L453] SORT_4 var_142_arg_2 = var_134; [L454] SORT_4 var_142 = var_142_arg_0 ? var_142_arg_1 : var_142_arg_2; [L455] SORT_4 var_143_arg_0 = var_141; [L456] SORT_4 var_143_arg_1 = var_142; [L457] SORT_4 var_143 = var_143_arg_0 + var_143_arg_1; [L458] var_143 = var_143 & mask_SORT_4 [L459] SORT_4 var_144_arg_0 = var_143; [L460] SORT_4 var_144_arg_1 = var_133; [L461] SORT_1 var_144 = var_144_arg_0 <= var_144_arg_1; [L462] SORT_1 var_145_arg_0 = ~state_131; [L463] var_145_arg_0 = var_145_arg_0 & mask_SORT_1 [L464] SORT_1 var_145_arg_1 = ~var_144; [L465] var_145_arg_1 = var_145_arg_1 & mask_SORT_1 [L466] SORT_1 var_145 = var_145_arg_0 & var_145_arg_1; [L467] var_145 = var_145 & mask_SORT_1 [L468] SORT_1 bad_146_arg_0 = var_145; [L469] CALL __VERIFIER_assert(!(bad_146_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: 0.9s, 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 [2022-11-19 07:17:41,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f706846995a459967b03ffd82a5fc7d6a479aa02be4ed6119cde7c985ad25459 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:17:43,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:17:43,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:17:43,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:17:43,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:17:43,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:17:43,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:17:43,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:17:43,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:17:43,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:17:43,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:17:43,699 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:17:43,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:17:43,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:17:43,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:17:43,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:17:43,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:17:43,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:17:43,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:17:43,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:17:43,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:17:43,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:17:43,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:17:43,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:17:43,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:17:43,738 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:17:43,738 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:17:43,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:17:43,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:17:43,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:17:43,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:17:43,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:17:43,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:17:43,747 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:17:43,748 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:17:43,748 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:17:43,749 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:17:43,749 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:17:43,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:17:43,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:17:43,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:17:43,753 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:17:43,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:17:43,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:17:43,798 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:17:43,798 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:17:43,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:17:43,799 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:17:43,800 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:17:43,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:17:43,800 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:17:43,800 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:17:43,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:17:43,802 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:17:43,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:17:43,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:17:43,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:17:43,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:17:43,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:17:43,804 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:17:43,805 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:17:43,805 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:17:43,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:17:43,805 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:17:43,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:17:43,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:17:43,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:17:43,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:17:43,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:43,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:17:43,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:17:43,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:17:43,807 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:17:43,808 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:17:43,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:17:43,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:17:43,809 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:17:43,809 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_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f706846995a459967b03ffd82a5fc7d6a479aa02be4ed6119cde7c985ad25459 [2022-11-19 07:17:44,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:17:44,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:17:44,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:17:44,259 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:17:44,263 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:17:44,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c [2022-11-19 07:17:44,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/45c9bd70d/4212302896fc46009bc14f7bf85278a9/FLAG5a00cae86 [2022-11-19 07:17:45,087 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:17:45,088 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c [2022-11-19 07:17:45,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/45c9bd70d/4212302896fc46009bc14f7bf85278a9/FLAG5a00cae86 [2022-11-19 07:17:45,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/data/45c9bd70d/4212302896fc46009bc14f7bf85278a9 [2022-11-19 07:17:45,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:17:45,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:17:45,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:45,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:17:45,247 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:17:45,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:17:45" (1/1) ... [2022-11-19 07:17:45,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50cb363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:45, skipping insertion in model container [2022-11-19 07:17:45,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:17:45" (1/1) ... [2022-11-19 07:17:45,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:17:45,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:17:45,626 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:17:46,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:46,195 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:17:46,209 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.7.prop1-func-interl.c[1014,1027] [2022-11-19 07:17:46,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:46,461 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:17:46,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46 WrapperNode [2022-11-19 07:17:46,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:46,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:46,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:17:46,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:17:46,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,763 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3790 [2022-11-19 07:17:46,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:46,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:17:46,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:17:46,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:17:46,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,970 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:46,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:47,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:17:47,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:17:47,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:17:47,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:17:47,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (1/1) ... [2022-11-19 07:17:47,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:47,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:17:47,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:17:47,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:17:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:17:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:17:47,842 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:17:47,844 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:17:55,785 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:17:55,792 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:17:55,792 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:17:55,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:55 BoogieIcfgContainer [2022-11-19 07:17:55,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:17:55,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:17:55,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:17:55,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:17:55,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:17:45" (1/3) ... [2022-11-19 07:17:55,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a7bcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:55, skipping insertion in model container [2022-11-19 07:17:55,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:46" (2/3) ... [2022-11-19 07:17:55,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19a7bcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:55, skipping insertion in model container [2022-11-19 07:17:55,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:55" (3/3) ... [2022-11-19 07:17:55,803 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.7.prop1-func-interl.c [2022-11-19 07:17:55,821 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:17:55,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:17:55,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:17:55,888 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;@66cf6e82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:17:55,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:17:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:17:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:17:55,900 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:55,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:17:55,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:55,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:55,909 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 07:17:55,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:17:55,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220276372] [2022-11-19 07:17:55,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:55,925 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:17:55,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:17:55,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:17:55,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:17:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:56,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-19 07:17:56,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:17:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:57,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:17:57,224 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:17:57,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220276372] [2022-11-19 07:17:57,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220276372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:57,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:57,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:17:57,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532702843] [2022-11-19 07:17:57,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:57,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:17:57,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:17:57,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:17:57,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:17:57,273 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:17:57,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:17:57,754 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 07:17:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:17:57,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:17:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:17:57,766 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:17:57,766 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:17:57,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:17:57,778 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:17:57,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:17:57,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:17:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 07:17:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:17:57,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:17:57,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:17:57,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:17:57,813 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:17:57,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:17:57,814 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:17:57,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:17:57,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:57,814 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:57,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:17:58,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:17:58,036 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:58,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:58,037 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 07:17:58,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:17:58,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079783148] [2022-11-19 07:17:58,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:58,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:17:58,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:17:58,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:17:58,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:17:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:59,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 3375 conjuncts, 318 conjunts are in the unsatisfiable core [2022-11-19 07:17:59,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:08,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:08,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:28,437 WARN L233 SmtUtils]: Spent 55.68s on a formula simplification that was a NOOP. DAG size: 650 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:19:31,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:19:31,847 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:19:31,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079783148] [2022-11-19 07:19:31,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079783148] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:31,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [4126226] [2022-11-19 07:19:31,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:31,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:19:31,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:19:31,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:19:31,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:19:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:34,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 3375 conjuncts, 320 conjunts are in the unsatisfiable core [2022-11-19 07:19:34,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:47,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:19:47,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:20:44,436 WARN L233 SmtUtils]: Spent 47.76s on a formula simplification. DAG size of input: 94 DAG size of output: 80 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:24:52,318 WARN L233 SmtUtils]: Spent 2.87m on a formula simplification that was a NOOP. DAG size: 693 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:24:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:24:58,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [4126226] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:24:58,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426297111] [2022-11-19 07:24:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:24:58,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:24:58,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:24:58,189 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:24:58,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bb4fce3-9132-4faa-aa3a-ec82cfb09c06/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:24:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:24:59,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 3375 conjuncts, 323 conjunts are in the unsatisfiable core [2022-11-19 07:24:59,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:25:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:25:18,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:11,225 WARN L233 SmtUtils]: Spent 36.45s on a formula simplification. DAG size of input: 94 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:50,443 WARN L233 SmtUtils]: Spent 1.55m on a formula simplification that was a NOOP. DAG size: 673 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)