./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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_208f99c6-7685-4344-80e9-64444bef3538/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 95c953c51b19c8dba02323e2e72b21d64a6f653572ea7fdb3950f26fc1bab17d --- 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 06:42:21,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:42:21,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:42:21,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:42:21,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:42:21,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:42:21,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:42:21,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:42:21,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:42:21,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:42:21,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:42:21,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:42:21,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:42:21,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:42:21,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:42:21,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:42:21,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:42:21,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:42:21,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:42:21,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:42:21,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:42:21,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:42:21,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:42:21,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:42:21,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:42:21,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:42:21,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:42:21,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:42:21,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:42:21,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:42:21,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:42:21,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:42:21,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:42:21,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:42:21,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:42:21,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:42:21,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:42:21,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:42:21,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:42:21,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:42:21,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:42:21,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:42:21,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:42:21,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:42:21,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:42:21,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:42:21,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:42:21,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:42:21,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:42:21,772 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:42:21,772 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:42:21,772 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:42:21,773 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:42:21,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:42:21,773 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:42:21,774 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:42:21,774 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:42:21,774 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:42:21,775 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:42:21,775 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:42:21,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:42:21,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:42:21,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:42:21,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:42:21,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:42:21,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:42:21,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:42:21,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:42:21,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:42:21,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:42:21,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:42:21,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:42:21,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:42:21,781 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:42:21,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:42:21,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:42:21,782 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:42:21,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:42:21,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:42:21,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:42:21,783 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_208f99c6-7685-4344-80e9-64444bef3538/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95c953c51b19c8dba02323e2e72b21d64a6f653572ea7fdb3950f26fc1bab17d [2022-11-19 06:42:22,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:42:22,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:42:22,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:42:22,150 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:42:22,151 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:42:22,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c [2022-11-19 06:42:22,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/a66badd81/74bcbe981b464336bbf322b6f9fcf60d/FLAG9ffd37b6c [2022-11-19 06:42:23,234 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:42:23,238 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c [2022-11-19 06:42:23,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/a66badd81/74bcbe981b464336bbf322b6f9fcf60d/FLAG9ffd37b6c [2022-11-19 06:42:23,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/a66badd81/74bcbe981b464336bbf322b6f9fcf60d [2022-11-19 06:42:23,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:42:23,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:42:23,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:42:23,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:42:23,777 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:42:23,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e17a20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:23, skipping insertion in model container [2022-11-19 06:42:23,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:42:23" (1/1) ... [2022-11-19 06:42:23,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:42:23,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:42:24,266 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_208f99c6-7685-4344-80e9-64444bef3538/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c[1014,1027] [2022-11-19 06:42:25,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:42:25,054 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:42:25,067 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_208f99c6-7685-4344-80e9-64444bef3538/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c[1014,1027] [2022-11-19 06:42:25,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:42:25,506 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:42:25,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25 WrapperNode [2022-11-19 06:42:25,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:42:25,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:42:25,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:42:25,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:42:25,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:25,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,129 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 8234 [2022-11-19 06:42:26,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:42:26,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:42:26,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:42:26,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:42:26,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:42:26,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:42:26,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:42:26,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:42:26,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (1/1) ... [2022-11-19 06:42:26,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:42:26,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:42:26,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:42:26,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:42:26,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:42:26,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:42:27,897 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:42:27,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:43:00,345 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:44:21,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:44:21,789 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:44:21,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:21 BoogieIcfgContainer [2022-11-19 06:44:21,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:44:21,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:44:21,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:44:21,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:44:21,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:42:23" (1/3) ... [2022-11-19 06:44:21,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d6ceba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:21, skipping insertion in model container [2022-11-19 06:44:21,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:42:25" (2/3) ... [2022-11-19 06:44:21,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d6ceba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:21, skipping insertion in model container [2022-11-19 06:44:21,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:21" (3/3) ... [2022-11-19 06:44:21,804 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.extinction.1.prop1-func-interl.c [2022-11-19 06:44:21,829 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:44:21,830 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:44:21,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:44:21,901 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;@4e17a719, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:44:21,901 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:44:21,907 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 06:44:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:44:21,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:21,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:44:21,917 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash 161406114, now seen corresponding path program 1 times [2022-11-19 06:44:21,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:44:21,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493355731] [2022-11-19 06:44:21,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:21,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:44:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:44:22,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:44:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:44:23,076 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:44:23,078 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:44:23,080 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:44:23,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:44:23,088 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:44:23,094 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:44:23,184 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 06:44:23,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:44:23 BoogieIcfgContainer [2022-11-19 06:44:23,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:44:23,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:44:23,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:44:23,225 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:44:23,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:21" (3/4) ... [2022-11-19 06:44:23,230 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:44:23,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:44:23,233 INFO L158 Benchmark]: Toolchain (without parser) took 119465.42ms. Allocated memory was 111.1MB in the beginning and 13.0GB in the end (delta: 12.9GB). Free memory was 70.2MB in the beginning and 10.8GB in the end (delta: -10.7GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2022-11-19 06:44:23,233 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 111.1MB. Free memory was 85.4MB in the beginning and 85.4MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:44:23,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1736.05ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 69.9MB in the beginning and 76.3MB in the end (delta: -6.4MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. [2022-11-19 06:44:23,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 621.95ms. Allocated memory was 148.9MB in the beginning and 255.9MB in the end (delta: 107.0MB). Free memory was 76.3MB in the beginning and 146.1MB in the end (delta: -69.8MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2022-11-19 06:44:23,243 INFO L158 Benchmark]: Boogie Preprocessor took 695.90ms. Allocated memory is still 255.9MB. Free memory was 146.1MB in the beginning and 140.3MB in the end (delta: 5.8MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2022-11-19 06:44:23,244 INFO L158 Benchmark]: RCFGBuilder took 114965.15ms. Allocated memory was 255.9MB in the beginning and 13.0GB in the end (delta: 12.7GB). Free memory was 140.3MB in the beginning and 10.9GB in the end (delta: -10.8GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2022-11-19 06:44:23,246 INFO L158 Benchmark]: TraceAbstraction took 1426.19ms. Allocated memory is still 13.0GB. Free memory was 10.9GB in the beginning and 10.8GB in the end (delta: 131.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2022-11-19 06:44:23,247 INFO L158 Benchmark]: Witness Printer took 6.39ms. Allocated memory is still 13.0GB. Free memory was 10.8GB in the beginning and 10.8GB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:44:23,253 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 111.1MB. Free memory was 85.4MB in the beginning and 85.4MB in the end (delta: 27.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1736.05ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 69.9MB in the beginning and 76.3MB in the end (delta: -6.4MB). Peak memory consumption was 75.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 621.95ms. Allocated memory was 148.9MB in the beginning and 255.9MB in the end (delta: 107.0MB). Free memory was 76.3MB in the beginning and 146.1MB in the end (delta: -69.8MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 695.90ms. Allocated memory is still 255.9MB. Free memory was 146.1MB in the beginning and 140.3MB in the end (delta: 5.8MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. * RCFGBuilder took 114965.15ms. Allocated memory was 255.9MB in the beginning and 13.0GB in the end (delta: 12.7GB). Free memory was 140.3MB in the beginning and 10.9GB in the end (delta: -10.8GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * TraceAbstraction took 1426.19ms. Allocated memory is still 13.0GB. Free memory was 10.9GB in the beginning and 10.8GB in the end (delta: 131.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. * Witness Printer took 6.39ms. Allocated memory is still 13.0GB. Free memory was 10.8GB in the beginning and 10.8GB in the end (delta: 2.6kB). 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 bitwiseOr at line 499, overapproximation of bitwiseComplement at line 504, overapproximation of bitwiseAnd at line 371. 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_74 = 0; [L39] const SORT_3 var_161 = 0; [L40] const SORT_4 var_163 = 1; [L41] const SORT_4 var_178 = 100; [L42] const SORT_4 var_180 = 10; [L43] const SORT_2 var_189 = 0; [L44] const SORT_2 var_193 = 255; [L45] const SORT_2 var_230 = 1; [L46] const SORT_2 var_291 = 2; [L47] const SORT_4 var_347 = 2; [L48] const SORT_2 var_358 = 111; [L49] const SORT_2 var_367 = 11; [L50] const SORT_2 var_437 = 122; [L51] const SORT_2 var_442 = 22; [L52] const SORT_2 var_450 = 100; [L53] const SORT_4 var_813 = 0; [L54] const SORT_2 var_1016 = 3; [L56] SORT_1 input_167; [L57] SORT_1 input_170; [L58] SORT_1 input_171; [L59] SORT_1 input_176; [L60] SORT_1 input_185; [L61] SORT_1 input_200; [L62] SORT_1 input_210; [L63] SORT_1 input_214; [L64] SORT_1 input_215; [L65] SORT_1 input_216; [L66] SORT_1 input_217; [L67] SORT_1 input_218; [L68] SORT_1 input_227; [L69] SORT_1 input_231; [L70] SORT_1 input_240; [L71] SORT_1 input_253; [L72] SORT_1 input_263; [L73] SORT_1 input_267; [L74] SORT_1 input_268; [L75] SORT_1 input_269; [L76] SORT_1 input_270; [L77] SORT_1 input_271; [L78] SORT_1 input_272; [L79] SORT_1 input_273; [L80] SORT_1 input_274; [L81] SORT_1 input_275; [L82] SORT_1 input_288; [L83] SORT_1 input_292; [L84] SORT_1 input_301; [L85] SORT_1 input_314; [L86] SORT_1 input_324; [L87] SORT_1 input_328; [L88] SORT_1 input_329; [L89] SORT_1 input_330; [L90] SORT_1 input_331; [L91] SORT_1 input_332; [L92] SORT_1 input_341; [L93] SORT_1 input_345; [L94] SORT_1 input_359; [L95] SORT_1 input_368; [L96] SORT_1 input_438; [L97] SORT_1 input_443; [L98] SORT_1 input_451; [L99] SORT_1 input_537; [L100] SORT_1 input_541; [L101] SORT_1 input_545; [L102] SORT_1 input_604; [L103] SORT_1 input_608; [L104] SORT_1 input_610; [L105] SORT_1 input_612; [L106] SORT_1 input_614; [L107] SORT_1 input_618; [L108] SORT_1 input_625; [L109] SORT_1 input_627; [L110] SORT_1 input_633; [L111] SORT_1 input_637; [L112] SORT_1 input_654; [L113] SORT_1 input_670; [L114] SORT_1 input_674; [L115] SORT_1 input_676; [L116] SORT_1 input_678; [L117] SORT_1 input_680; [L118] SORT_1 input_684; [L119] SORT_1 input_691; [L120] SORT_1 input_693; [L121] SORT_1 input_699; [L122] SORT_1 input_703; [L123] SORT_1 input_720; [L124] SORT_1 input_736; [L125] SORT_1 input_740; [L126] SORT_1 input_742; [L127] SORT_1 input_744; [L128] SORT_1 input_746; [L129] SORT_1 input_750; [L130] SORT_1 input_757; [L131] SORT_1 input_759; [L132] SORT_1 input_765; [L133] SORT_1 input_769; [L134] SORT_1 input_786; [L136] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L137] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L138] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L139] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L140] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L141] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L142] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L143] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L144] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L145] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L146] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L147] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L148] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L149] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L150] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L151] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L152] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L153] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L154] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L155] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L156] SORT_2 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L157] SORT_2 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L158] SORT_2 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L159] SORT_2 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L160] SORT_2 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L161] SORT_2 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L162] SORT_2 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L163] SORT_2 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L164] SORT_2 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L165] SORT_2 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L166] SORT_2 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L167] SORT_2 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L168] SORT_2 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L169] SORT_2 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L170] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L171] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L172] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L176] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] SORT_1 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L183] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L184] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L185] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L187] SORT_1 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L188] SORT_1 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L189] SORT_1 state_113 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L190] SORT_1 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L191] SORT_1 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L192] SORT_1 state_119 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L193] SORT_1 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L194] SORT_1 state_123 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L195] SORT_1 state_125 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L196] SORT_1 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L197] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L198] SORT_1 state_131 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L199] SORT_1 state_133 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L200] SORT_1 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L201] SORT_1 state_137 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L202] SORT_1 state_139 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L203] SORT_1 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L204] SORT_1 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L205] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L206] SORT_1 state_147 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L207] SORT_1 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L208] SORT_1 state_151 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L209] SORT_1 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L210] SORT_1 state_155 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L211] SORT_1 state_157 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L212] SORT_1 state_159 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L214] SORT_2 init_7_arg_1 = var_5; [L215] state_6 = init_7_arg_1 [L216] SORT_2 init_9_arg_1 = var_5; [L217] state_8 = init_9_arg_1 [L218] SORT_2 init_11_arg_1 = var_5; [L219] state_10 = init_11_arg_1 [L220] SORT_2 init_13_arg_1 = var_5; [L221] state_12 = init_13_arg_1 [L222] SORT_2 init_15_arg_1 = var_5; [L223] state_14 = init_15_arg_1 [L224] SORT_2 init_17_arg_1 = var_5; [L225] state_16 = init_17_arg_1 [L226] SORT_2 init_19_arg_1 = var_5; [L227] state_18 = init_19_arg_1 [L228] SORT_2 init_21_arg_1 = var_5; [L229] state_20 = init_21_arg_1 [L230] SORT_2 init_23_arg_1 = var_5; [L231] state_22 = init_23_arg_1 [L232] SORT_2 init_25_arg_1 = var_5; [L233] state_24 = init_25_arg_1 [L234] SORT_2 init_27_arg_1 = var_5; [L235] state_26 = init_27_arg_1 [L236] SORT_2 init_29_arg_1 = var_5; [L237] state_28 = init_29_arg_1 [L238] SORT_2 init_31_arg_1 = var_5; [L239] state_30 = init_31_arg_1 [L240] SORT_2 init_33_arg_1 = var_5; [L241] state_32 = init_33_arg_1 [L242] SORT_2 init_35_arg_1 = var_5; [L243] state_34 = init_35_arg_1 [L244] SORT_2 init_37_arg_1 = var_5; [L245] state_36 = init_37_arg_1 [L246] SORT_2 init_39_arg_1 = var_5; [L247] state_38 = init_39_arg_1 [L248] SORT_2 init_41_arg_1 = var_5; [L249] state_40 = init_41_arg_1 [L250] SORT_2 init_43_arg_1 = var_5; [L251] state_42 = init_43_arg_1 [L252] SORT_2 init_45_arg_1 = var_5; [L253] state_44 = init_45_arg_1 [L254] SORT_2 init_47_arg_1 = var_5; [L255] state_46 = init_47_arg_1 [L256] SORT_2 init_49_arg_1 = var_5; [L257] state_48 = init_49_arg_1 [L258] SORT_2 init_51_arg_1 = var_5; [L259] state_50 = init_51_arg_1 [L260] SORT_2 init_53_arg_1 = var_5; [L261] state_52 = init_53_arg_1 [L262] SORT_2 init_55_arg_1 = var_5; [L263] state_54 = init_55_arg_1 [L264] SORT_2 init_57_arg_1 = var_5; [L265] state_56 = init_57_arg_1 [L266] SORT_2 init_59_arg_1 = var_5; [L267] state_58 = init_59_arg_1 [L268] SORT_2 init_61_arg_1 = var_5; [L269] state_60 = init_61_arg_1 [L270] SORT_2 init_63_arg_1 = var_5; [L271] state_62 = init_63_arg_1 [L272] SORT_2 init_65_arg_1 = var_5; [L273] state_64 = init_65_arg_1 [L274] SORT_2 init_67_arg_1 = var_5; [L275] state_66 = init_67_arg_1 [L276] SORT_2 init_69_arg_1 = var_5; [L277] state_68 = init_69_arg_1 [L278] SORT_2 init_71_arg_1 = var_5; [L279] state_70 = init_71_arg_1 [L280] SORT_2 init_73_arg_1 = var_5; [L281] state_72 = init_73_arg_1 [L282] SORT_1 init_76_arg_1 = var_74; [L283] state_75 = init_76_arg_1 [L284] SORT_1 init_78_arg_1 = var_74; [L285] state_77 = init_78_arg_1 [L286] SORT_1 init_80_arg_1 = var_74; [L287] state_79 = init_80_arg_1 [L288] SORT_1 init_82_arg_1 = var_74; [L289] state_81 = init_82_arg_1 [L290] SORT_1 init_84_arg_1 = var_74; [L291] state_83 = init_84_arg_1 [L292] SORT_1 init_86_arg_1 = var_74; [L293] state_85 = init_86_arg_1 [L294] SORT_1 init_88_arg_1 = var_74; [L295] state_87 = init_88_arg_1 [L296] SORT_1 init_90_arg_1 = var_74; [L297] state_89 = init_90_arg_1 [L298] SORT_1 init_92_arg_1 = var_74; [L299] state_91 = init_92_arg_1 [L300] SORT_1 init_94_arg_1 = var_74; [L301] state_93 = init_94_arg_1 [L302] SORT_1 init_96_arg_1 = var_74; [L303] state_95 = init_96_arg_1 [L304] SORT_1 init_98_arg_1 = var_74; [L305] state_97 = init_98_arg_1 [L306] SORT_1 init_100_arg_1 = var_74; [L307] state_99 = init_100_arg_1 [L308] SORT_1 init_102_arg_1 = var_74; [L309] state_101 = init_102_arg_1 [L310] SORT_1 init_104_arg_1 = var_74; [L311] state_103 = init_104_arg_1 [L312] SORT_1 init_106_arg_1 = var_74; [L313] state_105 = init_106_arg_1 [L314] SORT_1 init_108_arg_1 = var_74; [L315] state_107 = init_108_arg_1 [L316] SORT_1 init_110_arg_1 = var_74; [L317] state_109 = init_110_arg_1 [L318] SORT_1 init_112_arg_1 = var_74; [L319] state_111 = init_112_arg_1 [L320] SORT_1 init_114_arg_1 = var_74; [L321] state_113 = init_114_arg_1 [L322] SORT_1 init_116_arg_1 = var_74; [L323] state_115 = init_116_arg_1 [L324] SORT_1 init_118_arg_1 = var_74; [L325] state_117 = init_118_arg_1 [L326] SORT_1 init_120_arg_1 = var_74; [L327] state_119 = init_120_arg_1 [L328] SORT_1 init_122_arg_1 = var_74; [L329] state_121 = init_122_arg_1 [L330] SORT_1 init_124_arg_1 = var_74; [L331] state_123 = init_124_arg_1 [L332] SORT_1 init_126_arg_1 = var_74; [L333] state_125 = init_126_arg_1 [L334] SORT_1 init_128_arg_1 = var_74; [L335] state_127 = init_128_arg_1 [L336] SORT_1 init_130_arg_1 = var_74; [L337] state_129 = init_130_arg_1 [L338] SORT_1 init_132_arg_1 = var_74; [L339] state_131 = init_132_arg_1 [L340] SORT_1 init_134_arg_1 = var_74; [L341] state_133 = init_134_arg_1 [L342] SORT_1 init_136_arg_1 = var_74; [L343] state_135 = init_136_arg_1 [L344] SORT_1 init_138_arg_1 = var_74; [L345] state_137 = init_138_arg_1 [L346] SORT_1 init_140_arg_1 = var_74; [L347] state_139 = init_140_arg_1 [L348] SORT_1 init_142_arg_1 = var_74; [L349] state_141 = init_142_arg_1 [L350] SORT_1 init_144_arg_1 = var_74; [L351] state_143 = init_144_arg_1 [L352] SORT_1 init_146_arg_1 = var_74; [L353] state_145 = init_146_arg_1 [L354] SORT_1 init_148_arg_1 = var_74; [L355] state_147 = init_148_arg_1 [L356] SORT_1 init_150_arg_1 = var_74; [L357] state_149 = init_150_arg_1 [L358] SORT_1 init_152_arg_1 = var_74; [L359] state_151 = init_152_arg_1 [L360] SORT_1 init_154_arg_1 = var_74; [L361] state_153 = init_154_arg_1 [L362] SORT_1 init_156_arg_1 = var_74; [L363] state_155 = init_156_arg_1 [L364] SORT_1 init_158_arg_1 = var_74; [L365] state_157 = init_158_arg_1 [L366] SORT_1 init_160_arg_1 = var_74; [L367] state_159 = init_160_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_134_arg_1=0, init_136_arg_1=0, init_138_arg_1=0, init_13_arg_1=0, init_140_arg_1=0, init_142_arg_1=0, init_144_arg_1=0, init_146_arg_1=0, init_148_arg_1=0, init_150_arg_1=0, init_152_arg_1=0, init_154_arg_1=0, init_156_arg_1=0, init_158_arg_1=0, init_15_arg_1=0, init_160_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_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_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_133=0, state_135=0, state_137=0, state_139=0, state_14=0, state_141=0, state_143=0, state_145=0, state_147=0, state_149=0, state_151=0, state_153=0, state_155=0, state_157=0, state_159=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_6=0, state_60=0, state_62=0, state_64=0, state_66=0, state_68=0, state_70=0, state_72=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_1016=3, var_161=0, var_163=1, var_178=100, var_180=10, var_189=0, var_193=255, var_230=1, var_291=2, var_347=2, var_358=111, var_367=11, var_437=122, var_442=22, var_450=100, var_5=0, var_74=0, var_813=0] [L370] input_167 = __VERIFIER_nondet_uchar() [L371] input_167 = input_167 & mask_SORT_1 [L372] input_170 = __VERIFIER_nondet_uchar() [L373] input_170 = input_170 & mask_SORT_1 [L374] input_171 = __VERIFIER_nondet_uchar() [L375] input_171 = input_171 & mask_SORT_1 [L376] input_176 = __VERIFIER_nondet_uchar() [L377] input_176 = input_176 & mask_SORT_1 [L378] input_185 = __VERIFIER_nondet_uchar() [L379] input_185 = input_185 & mask_SORT_1 [L380] input_200 = __VERIFIER_nondet_uchar() [L381] input_200 = input_200 & mask_SORT_1 [L382] input_210 = __VERIFIER_nondet_uchar() [L383] input_210 = input_210 & mask_SORT_1 [L384] input_214 = __VERIFIER_nondet_uchar() [L385] input_214 = input_214 & mask_SORT_1 [L386] input_215 = __VERIFIER_nondet_uchar() [L387] input_215 = input_215 & mask_SORT_1 [L388] input_216 = __VERIFIER_nondet_uchar() [L389] input_216 = input_216 & mask_SORT_1 [L390] input_217 = __VERIFIER_nondet_uchar() [L391] input_217 = input_217 & mask_SORT_1 [L392] input_218 = __VERIFIER_nondet_uchar() [L393] input_218 = input_218 & mask_SORT_1 [L394] input_227 = __VERIFIER_nondet_uchar() [L395] input_227 = input_227 & mask_SORT_1 [L396] input_231 = __VERIFIER_nondet_uchar() [L397] input_231 = input_231 & mask_SORT_1 [L398] input_240 = __VERIFIER_nondet_uchar() [L399] input_240 = input_240 & mask_SORT_1 [L400] input_253 = __VERIFIER_nondet_uchar() [L401] input_253 = input_253 & mask_SORT_1 [L402] input_263 = __VERIFIER_nondet_uchar() [L403] input_263 = input_263 & mask_SORT_1 [L404] input_267 = __VERIFIER_nondet_uchar() [L405] input_267 = input_267 & mask_SORT_1 [L406] input_268 = __VERIFIER_nondet_uchar() [L407] input_268 = input_268 & mask_SORT_1 [L408] input_269 = __VERIFIER_nondet_uchar() [L409] input_269 = input_269 & mask_SORT_1 [L410] input_270 = __VERIFIER_nondet_uchar() [L411] input_270 = input_270 & mask_SORT_1 [L412] input_271 = __VERIFIER_nondet_uchar() [L413] input_271 = input_271 & mask_SORT_1 [L414] input_272 = __VERIFIER_nondet_uchar() [L415] input_272 = input_272 & mask_SORT_1 [L416] input_273 = __VERIFIER_nondet_uchar() [L417] input_273 = input_273 & mask_SORT_1 [L418] input_274 = __VERIFIER_nondet_uchar() [L419] input_274 = input_274 & mask_SORT_1 [L420] input_275 = __VERIFIER_nondet_uchar() [L421] input_275 = input_275 & mask_SORT_1 [L422] input_288 = __VERIFIER_nondet_uchar() [L423] input_288 = input_288 & mask_SORT_1 [L424] input_292 = __VERIFIER_nondet_uchar() [L425] input_292 = input_292 & mask_SORT_1 [L426] input_301 = __VERIFIER_nondet_uchar() [L427] input_301 = input_301 & mask_SORT_1 [L428] input_314 = __VERIFIER_nondet_uchar() [L429] input_314 = input_314 & mask_SORT_1 [L430] input_324 = __VERIFIER_nondet_uchar() [L431] input_324 = input_324 & mask_SORT_1 [L432] input_328 = __VERIFIER_nondet_uchar() [L433] input_328 = input_328 & mask_SORT_1 [L434] input_329 = __VERIFIER_nondet_uchar() [L435] input_329 = input_329 & mask_SORT_1 [L436] input_330 = __VERIFIER_nondet_uchar() [L437] input_330 = input_330 & mask_SORT_1 [L438] input_331 = __VERIFIER_nondet_uchar() [L439] input_331 = input_331 & mask_SORT_1 [L440] input_332 = __VERIFIER_nondet_uchar() [L441] input_332 = input_332 & mask_SORT_1 [L442] input_341 = __VERIFIER_nondet_uchar() [L443] input_341 = input_341 & mask_SORT_1 [L444] input_345 = __VERIFIER_nondet_uchar() [L445] input_345 = input_345 & mask_SORT_1 [L446] input_359 = __VERIFIER_nondet_uchar() [L447] input_359 = input_359 & mask_SORT_1 [L448] input_368 = __VERIFIER_nondet_uchar() [L449] input_368 = input_368 & mask_SORT_1 [L450] input_438 = __VERIFIER_nondet_uchar() [L451] input_438 = input_438 & mask_SORT_1 [L452] input_443 = __VERIFIER_nondet_uchar() [L453] input_443 = input_443 & mask_SORT_1 [L454] input_451 = __VERIFIER_nondet_uchar() [L455] input_451 = input_451 & mask_SORT_1 [L456] input_537 = __VERIFIER_nondet_uchar() [L457] input_537 = input_537 & mask_SORT_1 [L458] input_541 = __VERIFIER_nondet_uchar() [L459] input_541 = input_541 & mask_SORT_1 [L460] input_545 = __VERIFIER_nondet_uchar() [L461] input_545 = input_545 & mask_SORT_1 [L462] input_604 = __VERIFIER_nondet_uchar() [L463] input_608 = __VERIFIER_nondet_uchar() [L464] input_610 = __VERIFIER_nondet_uchar() [L465] input_612 = __VERIFIER_nondet_uchar() [L466] input_614 = __VERIFIER_nondet_uchar() [L467] input_618 = __VERIFIER_nondet_uchar() [L468] input_625 = __VERIFIER_nondet_uchar() [L469] input_627 = __VERIFIER_nondet_uchar() [L470] input_633 = __VERIFIER_nondet_uchar() [L471] input_637 = __VERIFIER_nondet_uchar() [L472] input_654 = __VERIFIER_nondet_uchar() [L473] input_670 = __VERIFIER_nondet_uchar() [L474] input_674 = __VERIFIER_nondet_uchar() [L475] input_676 = __VERIFIER_nondet_uchar() [L476] input_678 = __VERIFIER_nondet_uchar() [L477] input_680 = __VERIFIER_nondet_uchar() [L478] input_684 = __VERIFIER_nondet_uchar() [L479] input_691 = __VERIFIER_nondet_uchar() [L480] input_693 = __VERIFIER_nondet_uchar() [L481] input_699 = __VERIFIER_nondet_uchar() [L482] input_703 = __VERIFIER_nondet_uchar() [L483] input_720 = __VERIFIER_nondet_uchar() [L484] input_736 = __VERIFIER_nondet_uchar() [L485] input_740 = __VERIFIER_nondet_uchar() [L486] input_742 = __VERIFIER_nondet_uchar() [L487] input_744 = __VERIFIER_nondet_uchar() [L488] input_746 = __VERIFIER_nondet_uchar() [L489] input_750 = __VERIFIER_nondet_uchar() [L490] input_757 = __VERIFIER_nondet_uchar() [L491] input_759 = __VERIFIER_nondet_uchar() [L492] input_765 = __VERIFIER_nondet_uchar() [L493] input_769 = __VERIFIER_nondet_uchar() [L494] input_786 = __VERIFIER_nondet_uchar() [L497] SORT_3 var_162_arg_0 = var_161; [L498] SORT_2 var_162_arg_1 = state_6; [L499] SORT_4 var_162 = ((SORT_4)var_162_arg_0 << 8) | var_162_arg_1; [L500] var_162 = var_162 & mask_SORT_4 [L501] SORT_4 var_164_arg_0 = var_162; [L502] SORT_4 var_164_arg_1 = var_163; [L503] SORT_1 var_164 = var_164_arg_0 <= var_164_arg_1; [L504] SORT_1 var_165_arg_0 = ~state_159; [L505] var_165_arg_0 = var_165_arg_0 & mask_SORT_1 [L506] SORT_1 var_165_arg_1 = ~var_164; [L507] var_165_arg_1 = var_165_arg_1 & mask_SORT_1 [L508] SORT_1 var_165 = var_165_arg_0 & var_165_arg_1; [L509] var_165 = var_165 & mask_SORT_1 [L510] SORT_1 bad_166_arg_0 = var_165; [L511] CALL __VERIFIER_assert(!(bad_166_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 06:44:23,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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_208f99c6-7685-4344-80e9-64444bef3538/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 95c953c51b19c8dba02323e2e72b21d64a6f653572ea7fdb3950f26fc1bab17d --- 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 06:44:26,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:44:26,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:44:26,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:44:26,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:44:26,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:44:26,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:44:26,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:44:26,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:44:26,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:44:26,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:44:26,524 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:44:26,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:44:26,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:44:26,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:44:26,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:44:26,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:44:26,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:44:26,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:44:26,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:44:26,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:44:26,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:44:26,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:44:26,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:44:26,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:44:26,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:44:26,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:44:26,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:44:26,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:44:26,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:44:26,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:44:26,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:44:26,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:44:26,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:44:26,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:44:26,620 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:44:26,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:44:26,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:44:26,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:44:26,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:44:26,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:44:26,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 06:44:26,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:44:26,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:44:26,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:44:26,682 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:44:26,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:44:26,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:44:26,684 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:44:26,684 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:44:26,685 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:44:26,685 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:44:26,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:44:26,687 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:44:26,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:44:26,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:44:26,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:44:26,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:44:26,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:44:26,690 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:44:26,690 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:44:26,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:44:26,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:44:26,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:44:26,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:44:26,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:44:26,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:44:26,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:44:26,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:44:26,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:44:26,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:44:26,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:44:26,694 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:44:26,694 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:44:26,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:44:26,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:44:26,695 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:44:26,695 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_208f99c6-7685-4344-80e9-64444bef3538/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95c953c51b19c8dba02323e2e72b21d64a6f653572ea7fdb3950f26fc1bab17d [2022-11-19 06:44:27,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:44:27,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:44:27,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:44:27,298 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:44:27,299 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:44:27,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c [2022-11-19 06:44:27,386 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/cce1b9613/9d93f3b4e3a048ff96f44969447d9953/FLAGe07c2b295 [2022-11-19 06:44:28,425 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:44:28,426 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c [2022-11-19 06:44:28,461 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/cce1b9613/9d93f3b4e3a048ff96f44969447d9953/FLAGe07c2b295 [2022-11-19 06:44:28,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/data/cce1b9613/9d93f3b4e3a048ff96f44969447d9953 [2022-11-19 06:44:28,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:44:28,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:44:28,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:44:28,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:44:28,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:44:28,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:28" (1/1) ... [2022-11-19 06:44:28,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ca7419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:28, skipping insertion in model container [2022-11-19 06:44:28,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:44:28" (1/1) ... [2022-11-19 06:44:28,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:44:29,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:44:29,300 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_208f99c6-7685-4344-80e9-64444bef3538/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c[1014,1027] [2022-11-19 06:44:30,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:44:30,201 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:44:30,216 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_208f99c6-7685-4344-80e9-64444bef3538/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.1.prop1-func-interl.c[1014,1027] [2022-11-19 06:44:30,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:44:30,674 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:44:30,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30 WrapperNode [2022-11-19 06:44:30,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:44:30,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:44:30,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:44:30,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:44:30,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:30,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,205 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5245 [2022-11-19 06:44:31,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:44:31,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:44:31,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:44:31,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:44:31,219 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,375 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:44:31,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:44:31,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:44:31,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:44:31,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (1/1) ... [2022-11-19 06:44:31,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:44:31,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:44:31,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:44:31,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:44:31,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:44:31,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:44:32,718 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:44:32,721 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:44:49,846 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:44:49,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:44:49,856 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 06:44:49,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:49 BoogieIcfgContainer [2022-11-19 06:44:49,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:44:49,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:44:49,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:44:49,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:44:49,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:44:28" (1/3) ... [2022-11-19 06:44:49,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d1b269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:49, skipping insertion in model container [2022-11-19 06:44:49,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:44:30" (2/3) ... [2022-11-19 06:44:49,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d1b269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:44:49, skipping insertion in model container [2022-11-19 06:44:49,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:44:49" (3/3) ... [2022-11-19 06:44:49,869 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.extinction.1.prop1-func-interl.c [2022-11-19 06:44:49,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:44:49,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:44:49,951 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:44:49,959 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;@1d7367ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:44:49,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:44:49,965 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 06:44:49,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 06:44:49,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:49,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 06:44:49,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:49,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:49,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 06:44:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:49,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708013619] [2022-11-19 06:44:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:49,999 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 06:44:49,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:50,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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 06:44:50,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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 06:44:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:44:51,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-19 06:44:51,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:44:51,793 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 06:44:51,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:44:51,795 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:44:51,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708013619] [2022-11-19 06:44:51,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [708013619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:44:51,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:44:51,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:44:51,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977238579] [2022-11-19 06:44:51,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:44:51,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:44:51,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:44:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:44:51,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:44:51,859 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 06:44:54,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-19 06:44:54,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:44:54,849 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2022-11-19 06:44:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:44:54,852 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 06:44:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:44:54,868 INFO L225 Difference]: With dead ends: 19 [2022-11-19 06:44:54,868 INFO L226 Difference]: Without dead ends: 10 [2022-11-19 06:44:54,871 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 06:44:54,876 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:44:54,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 06:44:54,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-19 06:44:54,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-11-19 06:44:54,924 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 06:44:54,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 06:44:54,927 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 06:44:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:44:54,928 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 06:44:54,928 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 06:44:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 06:44:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 06:44:54,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:44:54,930 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 06:44:54,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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 06:44:55,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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 06:44:55,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:44:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:44:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 06:44:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:44:55,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645714891] [2022-11-19 06:44:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:44:55,156 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 06:44:55,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:44:55,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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 06:44:55,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/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 06:45:10,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:45:10,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 4567 conjuncts, 201 conjunts are in the unsatisfiable core [2022-11-19 06:45:10,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:47:00,787 WARN L233 SmtUtils]: Spent 1.61m on a formula simplification. DAG size of input: 464 DAG size of output: 421 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:47:03,784 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 06:47:03,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:48:56,097 WARN L233 SmtUtils]: Spent 1.60m on a formula simplification. DAG size of input: 731 DAG size of output: 670 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:51:20,081 WARN L233 SmtUtils]: Spent 1.87m on a formula simplification that was a NOOP. DAG size: 706 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:51:20,802 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 06:51:20,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:51:20,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645714891] [2022-11-19 06:51:20,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645714891] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:51:20,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1054729188] [2022-11-19 06:51:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:51:20,803 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 06:51:20,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 06:51:20,806 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 06:51:20,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_208f99c6-7685-4344-80e9-64444bef3538/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 06:51:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:51:26,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 4567 conjuncts, 197 conjunts are in the unsatisfiable core [2022-11-19 06:51:26,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:53:36,741 WARN L233 SmtUtils]: Spent 1.62m on a formula simplification. DAG size of input: 467 DAG size of output: 424 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 06:53:37,857 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 06:53:37,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:55:58,536 WARN L233 SmtUtils]: Spent 1.95m on a formula simplification. DAG size of input: 520 DAG size of output: 506 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)