./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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 4b628717e841a1f25041b262dec425d28d34a86158190aac9aa7a2c821c0add8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:23:00,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:23:00,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:23:01,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:23:01,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:23:01,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:23:01,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:23:01,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:23:01,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:23:01,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:23:01,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:23:01,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:23:01,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:23:01,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:23:01,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:23:01,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:23:01,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:23:01,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:23:01,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:23:01,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:23:01,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:23:01,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:23:01,092 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:23:01,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:23:01,103 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:23:01,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:23:01,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:23:01,104 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:23:01,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:23:01,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:23:01,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:23:01,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:23:01,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:23:01,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:23:01,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:23:01,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:23:01,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:23:01,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:23:01,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:23:01,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:23:01,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:23:01,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:23:01,172 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:23:01,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:23:01,173 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:23:01,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:23:01,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:23:01,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:23:01,175 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:23:01,176 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:23:01,176 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:23:01,176 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:23:01,177 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:23:01,178 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:23:01,178 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:23:01,178 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:23:01,178 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:23:01,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:23:01,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:23:01,179 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:23:01,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:23:01,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:23:01,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:23:01,181 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:23:01,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:23:01,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:23:01,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:23:01,184 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:23:01,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:23:01,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:23:01,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:23:01,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:01,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:23:01,185 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:23:01,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:23:01,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:23:01,186 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:23:01,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:23:01,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:23:01,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:23:01,207 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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b628717e841a1f25041b262dec425d28d34a86158190aac9aa7a2c821c0add8 [2022-11-19 08:23:01,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:23:01,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:23:01,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:23:01,531 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:23:01,532 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:23:01,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c [2022-11-19 08:23:01,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/0faa4d2b3/bace622980054e888baef8b9b5c7e9d4/FLAGdff15245e [2022-11-19 08:23:02,335 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:23:02,336 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c [2022-11-19 08:23:02,355 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/0faa4d2b3/bace622980054e888baef8b9b5c7e9d4/FLAGdff15245e [2022-11-19 08:23:02,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/0faa4d2b3/bace622980054e888baef8b9b5c7e9d4 [2022-11-19 08:23:02,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:23:02,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:23:02,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:02,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:23:02,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:23:02,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:02" (1/1) ... [2022-11-19 08:23:02,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b10a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:02, skipping insertion in model container [2022-11-19 08:23:02,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:02" (1/1) ... [2022-11-19 08:23:02,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:23:02,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:23:02,824 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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:23:03,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:03,466 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:23:03,483 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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:23:03,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:03,810 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:23:03,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03 WrapperNode [2022-11-19 08:23:03,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:03,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:03,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:23:03,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:23:03,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:03,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,212 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4645 [2022-11-19 08:23:04,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:04,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:23:04,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:23:04,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:23:04,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:23:04,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:23:04,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:23:04,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:23:04,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (1/1) ... [2022-11-19 08:23:04,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:04,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:04,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:23:04,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:23:04,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:23:04,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:23:05,506 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:23:05,508 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:23:20,309 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:23:43,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:23:43,379 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:23:43,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:43 BoogieIcfgContainer [2022-11-19 08:23:43,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:23:43,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:23:43,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:23:43,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:23:43,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:23:02" (1/3) ... [2022-11-19 08:23:43,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4e2bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:43, skipping insertion in model container [2022-11-19 08:23:43,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:03" (2/3) ... [2022-11-19 08:23:43,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b4e2bc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:43, skipping insertion in model container [2022-11-19 08:23:43,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:43" (3/3) ... [2022-11-19 08:23:43,394 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.6.prop1-func-interl.c [2022-11-19 08:23:43,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:23:43,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:23:43,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:23:43,525 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;@1899605d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:23:43,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:23:43,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:23:43,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:43,543 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:23:43,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:23:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:43,554 INFO L85 PathProgramCache]: Analyzing trace with hash 82960460, now seen corresponding path program 1 times [2022-11-19 08:23:43,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:43,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991197366] [2022-11-19 08:23:43,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:43,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:23:44,159 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:23:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:23:44,396 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:23:44,399 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:23:44,400 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:23:44,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:23:44,409 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:23:44,414 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:23:44,464 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 08:23:44,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:23:44 BoogieIcfgContainer [2022-11-19 08:23:44,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:23:44,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:23:44,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:23:44,491 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:23:44,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:43" (3/4) ... [2022-11-19 08:23:44,495 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:23:44,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:23:44,497 INFO L158 Benchmark]: Toolchain (without parser) took 42022.50ms. Allocated memory was 92.3MB in the beginning and 8.9GB in the end (delta: 8.8GB). Free memory was 45.8MB in the beginning and 7.8GB in the end (delta: -7.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-11-19 08:23:44,498 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 67.6MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:23:44,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1332.72ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 45.6MB in the beginning and 76.3MB in the end (delta: -30.7MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2022-11-19 08:23:44,500 INFO L158 Benchmark]: Boogie Procedure Inliner took 400.46ms. Allocated memory is still 127.9MB. Free memory was 76.3MB in the beginning and 55.5MB in the end (delta: 20.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2022-11-19 08:23:44,501 INFO L158 Benchmark]: Boogie Preprocessor took 352.23ms. Allocated memory was 127.9MB in the beginning and 228.6MB in the end (delta: 100.7MB). Free memory was 55.5MB in the beginning and 142.9MB in the end (delta: -87.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-11-19 08:23:44,501 INFO L158 Benchmark]: RCFGBuilder took 38814.68ms. Allocated memory was 228.6MB in the beginning and 8.9GB in the end (delta: 8.7GB). Free memory was 141.9MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-11-19 08:23:44,502 INFO L158 Benchmark]: TraceAbstraction took 1106.12ms. Allocated memory is still 8.9GB. Free memory was 7.9GB in the beginning and 7.8GB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2022-11-19 08:23:44,503 INFO L158 Benchmark]: Witness Printer took 5.43ms. Allocated memory is still 8.9GB. Free memory is still 7.8GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:23:44,507 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 67.8MB in the beginning and 67.6MB in the end (delta: 159.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1332.72ms. Allocated memory was 92.3MB in the beginning and 127.9MB in the end (delta: 35.7MB). Free memory was 45.6MB in the beginning and 76.3MB in the end (delta: -30.7MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 400.46ms. Allocated memory is still 127.9MB. Free memory was 76.3MB in the beginning and 55.5MB in the end (delta: 20.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 352.23ms. Allocated memory was 127.9MB in the beginning and 228.6MB in the end (delta: 100.7MB). Free memory was 55.5MB in the beginning and 142.9MB in the end (delta: -87.5MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * RCFGBuilder took 38814.68ms. Allocated memory was 228.6MB in the beginning and 8.9GB in the end (delta: 8.7GB). Free memory was 141.9MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * TraceAbstraction took 1106.12ms. Allocated memory is still 8.9GB. Free memory was 7.9GB in the beginning and 7.8GB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Witness Printer took 5.43ms. Allocated memory is still 8.9GB. Free memory is still 7.8GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 378, overapproximation of bitwiseAnd at line 267. 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_26 = 0; [L39] const SORT_4 var_109 = 1; [L40] const SORT_4 var_110 = 0; [L41] const SORT_2 var_121 = 0; [L42] const SORT_2 var_122 = 255; [L43] const SORT_2 var_136 = 1; [L44] const SORT_2 var_161 = 2; [L45] const SORT_2 var_180 = 3; [L46] const SORT_3 var_225 = 0; [L47] const SORT_4 var_442 = 4; [L48] const SORT_2 var_455 = 4; [L50] SORT_1 input_125; [L51] SORT_1 input_127; [L52] SORT_1 input_129; [L53] SORT_1 input_131; [L54] SORT_1 input_132; [L55] SORT_1 input_133; [L56] SORT_1 input_135; [L57] SORT_1 input_148; [L58] SORT_1 input_149; [L59] SORT_1 input_151; [L60] SORT_1 input_164; [L61] SORT_1 input_165; [L62] SORT_1 input_167; [L63] SORT_1 input_178; [L64] SORT_1 input_179; [L65] SORT_1 input_183; [L66] SORT_1 input_195; [L67] SORT_1 input_196; [L68] SORT_1 input_197; [L69] SORT_1 input_198; [L70] SORT_1 input_205; [L71] SORT_1 input_206; [L72] SORT_1 input_207; [L73] SORT_1 input_208; [L74] SORT_1 input_209; [L75] SORT_1 input_210; [L76] SORT_1 input_211; [L77] SORT_1 input_212; [L78] SORT_1 input_224; [L79] SORT_1 input_232; [L80] SORT_1 input_239; [L81] SORT_1 input_246; [L82] SORT_1 input_254; [L83] SORT_1 input_256; [L84] SORT_1 input_260; [L85] SORT_1 input_262; [L86] SORT_1 input_271; [L87] SORT_1 input_285; [L88] SORT_1 input_296; [L89] SORT_1 input_298; [L90] SORT_1 input_302; [L91] SORT_1 input_304; [L92] SORT_1 input_313; [L93] SORT_1 input_327; [L94] SORT_1 input_338; [L95] SORT_1 input_340; [L96] SORT_1 input_344; [L97] SORT_1 input_346; [L98] SORT_1 input_355; [L99] SORT_1 input_369; [L100] SORT_1 input_380; [L101] SORT_1 input_382; [L102] SORT_1 input_386; [L103] SORT_1 input_388; [L104] SORT_1 input_397; [L105] SORT_1 input_411; [L107] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L110] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L111] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L112] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L113] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L114] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L115] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L116] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L117] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L139] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L142] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] SORT_1 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L154] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_1 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_2 init_7_arg_1 = var_5; [L160] state_6 = init_7_arg_1 [L161] SORT_2 init_9_arg_1 = var_5; [L162] state_8 = init_9_arg_1 [L163] SORT_2 init_11_arg_1 = var_5; [L164] state_10 = init_11_arg_1 [L165] SORT_2 init_13_arg_1 = var_5; [L166] state_12 = init_13_arg_1 [L167] SORT_2 init_15_arg_1 = var_5; [L168] state_14 = init_15_arg_1 [L169] SORT_2 init_17_arg_1 = var_5; [L170] state_16 = init_17_arg_1 [L171] SORT_2 init_19_arg_1 = var_5; [L172] state_18 = init_19_arg_1 [L173] SORT_2 init_21_arg_1 = var_5; [L174] state_20 = init_21_arg_1 [L175] SORT_2 init_23_arg_1 = var_5; [L176] state_22 = init_23_arg_1 [L177] SORT_2 init_25_arg_1 = var_5; [L178] state_24 = init_25_arg_1 [L179] SORT_1 init_28_arg_1 = var_26; [L180] state_27 = init_28_arg_1 [L181] SORT_1 init_30_arg_1 = var_26; [L182] state_29 = init_30_arg_1 [L183] SORT_1 init_32_arg_1 = var_26; [L184] state_31 = init_32_arg_1 [L185] SORT_1 init_34_arg_1 = var_26; [L186] state_33 = init_34_arg_1 [L187] SORT_1 init_36_arg_1 = var_26; [L188] state_35 = init_36_arg_1 [L189] SORT_1 init_38_arg_1 = var_26; [L190] state_37 = init_38_arg_1 [L191] SORT_1 init_40_arg_1 = var_26; [L192] state_39 = init_40_arg_1 [L193] SORT_1 init_42_arg_1 = var_26; [L194] state_41 = init_42_arg_1 [L195] SORT_1 init_44_arg_1 = var_26; [L196] state_43 = init_44_arg_1 [L197] SORT_1 init_46_arg_1 = var_26; [L198] state_45 = init_46_arg_1 [L199] SORT_1 init_48_arg_1 = var_26; [L200] state_47 = init_48_arg_1 [L201] SORT_1 init_50_arg_1 = var_26; [L202] state_49 = init_50_arg_1 [L203] SORT_1 init_52_arg_1 = var_26; [L204] state_51 = init_52_arg_1 [L205] SORT_1 init_54_arg_1 = var_26; [L206] state_53 = init_54_arg_1 [L207] SORT_1 init_56_arg_1 = var_26; [L208] state_55 = init_56_arg_1 [L209] SORT_1 init_58_arg_1 = var_26; [L210] state_57 = init_58_arg_1 [L211] SORT_1 init_60_arg_1 = var_26; [L212] state_59 = init_60_arg_1 [L213] SORT_1 init_62_arg_1 = var_26; [L214] state_61 = init_62_arg_1 [L215] SORT_1 init_64_arg_1 = var_26; [L216] state_63 = init_64_arg_1 [L217] SORT_1 init_66_arg_1 = var_26; [L218] state_65 = init_66_arg_1 [L219] SORT_1 init_68_arg_1 = var_26; [L220] state_67 = init_68_arg_1 [L221] SORT_1 init_70_arg_1 = var_26; [L222] state_69 = init_70_arg_1 [L223] SORT_1 init_72_arg_1 = var_26; [L224] state_71 = init_72_arg_1 [L225] SORT_1 init_74_arg_1 = var_26; [L226] state_73 = init_74_arg_1 [L227] SORT_1 init_76_arg_1 = var_26; [L228] state_75 = init_76_arg_1 [L229] SORT_1 init_78_arg_1 = var_26; [L230] state_77 = init_78_arg_1 [L231] SORT_1 init_80_arg_1 = var_26; [L232] state_79 = init_80_arg_1 [L233] SORT_1 init_82_arg_1 = var_26; [L234] state_81 = init_82_arg_1 [L235] SORT_1 init_84_arg_1 = var_26; [L236] state_83 = init_84_arg_1 [L237] SORT_1 init_86_arg_1 = var_26; [L238] state_85 = init_86_arg_1 [L239] SORT_1 init_88_arg_1 = var_26; [L240] state_87 = init_88_arg_1 [L241] SORT_1 init_90_arg_1 = var_26; [L242] state_89 = init_90_arg_1 [L243] SORT_1 init_92_arg_1 = var_26; [L244] state_91 = init_92_arg_1 [L245] SORT_1 init_94_arg_1 = var_26; [L246] state_93 = init_94_arg_1 [L247] SORT_1 init_96_arg_1 = var_26; [L248] state_95 = init_96_arg_1 [L249] SORT_1 init_98_arg_1 = var_26; [L250] state_97 = init_98_arg_1 [L251] SORT_1 init_100_arg_1 = var_26; [L252] state_99 = init_100_arg_1 [L253] SORT_1 init_102_arg_1 = var_26; [L254] state_101 = init_102_arg_1 [L255] SORT_1 init_104_arg_1 = var_26; [L256] state_103 = init_104_arg_1 [L257] SORT_1 init_106_arg_1 = var_26; [L258] state_105 = init_106_arg_1 [L259] SORT_1 init_108_arg_1 = var_26; [L260] state_107 = init_108_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_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_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_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, 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_109=1, var_110=0, var_121=0, var_122=255, var_136=1, var_161=2, var_180=3, var_225=0, var_26=0, var_442=4, var_455=4, var_5=0] [L263] input_125 = __VERIFIER_nondet_uchar() [L264] input_127 = __VERIFIER_nondet_uchar() [L265] input_129 = __VERIFIER_nondet_uchar() [L266] input_131 = __VERIFIER_nondet_uchar() [L267] input_131 = input_131 & mask_SORT_1 [L268] input_132 = __VERIFIER_nondet_uchar() [L269] input_132 = input_132 & mask_SORT_1 [L270] input_133 = __VERIFIER_nondet_uchar() [L271] input_135 = __VERIFIER_nondet_uchar() [L272] input_135 = input_135 & mask_SORT_1 [L273] input_148 = __VERIFIER_nondet_uchar() [L274] input_148 = input_148 & mask_SORT_1 [L275] input_149 = __VERIFIER_nondet_uchar() [L276] input_149 = input_149 & mask_SORT_1 [L277] input_151 = __VERIFIER_nondet_uchar() [L278] input_151 = input_151 & mask_SORT_1 [L279] input_164 = __VERIFIER_nondet_uchar() [L280] input_164 = input_164 & mask_SORT_1 [L281] input_165 = __VERIFIER_nondet_uchar() [L282] input_165 = input_165 & mask_SORT_1 [L283] input_167 = __VERIFIER_nondet_uchar() [L284] input_167 = input_167 & mask_SORT_1 [L285] input_178 = __VERIFIER_nondet_uchar() [L286] input_178 = input_178 & mask_SORT_1 [L287] input_179 = __VERIFIER_nondet_uchar() [L288] input_179 = input_179 & mask_SORT_1 [L289] input_183 = __VERIFIER_nondet_uchar() [L290] input_183 = input_183 & mask_SORT_1 [L291] input_195 = __VERIFIER_nondet_uchar() [L292] input_195 = input_195 & mask_SORT_1 [L293] input_196 = __VERIFIER_nondet_uchar() [L294] input_196 = input_196 & mask_SORT_1 [L295] input_197 = __VERIFIER_nondet_uchar() [L296] input_197 = input_197 & mask_SORT_1 [L297] input_198 = __VERIFIER_nondet_uchar() [L298] input_198 = input_198 & mask_SORT_1 [L299] input_205 = __VERIFIER_nondet_uchar() [L300] input_205 = input_205 & mask_SORT_1 [L301] input_206 = __VERIFIER_nondet_uchar() [L302] input_206 = input_206 & mask_SORT_1 [L303] input_207 = __VERIFIER_nondet_uchar() [L304] input_207 = input_207 & mask_SORT_1 [L305] input_208 = __VERIFIER_nondet_uchar() [L306] input_208 = input_208 & mask_SORT_1 [L307] input_209 = __VERIFIER_nondet_uchar() [L308] input_209 = input_209 & mask_SORT_1 [L309] input_210 = __VERIFIER_nondet_uchar() [L310] input_210 = input_210 & mask_SORT_1 [L311] input_211 = __VERIFIER_nondet_uchar() [L312] input_211 = input_211 & mask_SORT_1 [L313] input_212 = __VERIFIER_nondet_uchar() [L314] input_212 = input_212 & mask_SORT_1 [L315] input_224 = __VERIFIER_nondet_uchar() [L316] input_224 = input_224 & mask_SORT_1 [L317] input_232 = __VERIFIER_nondet_uchar() [L318] input_232 = input_232 & mask_SORT_1 [L319] input_239 = __VERIFIER_nondet_uchar() [L320] input_239 = input_239 & mask_SORT_1 [L321] input_246 = __VERIFIER_nondet_uchar() [L322] input_246 = input_246 & mask_SORT_1 [L323] input_254 = __VERIFIER_nondet_uchar() [L324] input_256 = __VERIFIER_nondet_uchar() [L325] input_260 = __VERIFIER_nondet_uchar() [L326] input_262 = __VERIFIER_nondet_uchar() [L327] input_271 = __VERIFIER_nondet_uchar() [L328] input_285 = __VERIFIER_nondet_uchar() [L329] input_296 = __VERIFIER_nondet_uchar() [L330] input_298 = __VERIFIER_nondet_uchar() [L331] input_302 = __VERIFIER_nondet_uchar() [L332] input_304 = __VERIFIER_nondet_uchar() [L333] input_313 = __VERIFIER_nondet_uchar() [L334] input_327 = __VERIFIER_nondet_uchar() [L335] input_338 = __VERIFIER_nondet_uchar() [L336] input_340 = __VERIFIER_nondet_uchar() [L337] input_344 = __VERIFIER_nondet_uchar() [L338] input_346 = __VERIFIER_nondet_uchar() [L339] input_355 = __VERIFIER_nondet_uchar() [L340] input_369 = __VERIFIER_nondet_uchar() [L341] input_380 = __VERIFIER_nondet_uchar() [L342] input_382 = __VERIFIER_nondet_uchar() [L343] input_386 = __VERIFIER_nondet_uchar() [L344] input_388 = __VERIFIER_nondet_uchar() [L345] input_397 = __VERIFIER_nondet_uchar() [L346] input_411 = __VERIFIER_nondet_uchar() [L349] SORT_1 var_111_arg_0 = state_29; [L350] SORT_4 var_111_arg_1 = var_109; [L351] SORT_4 var_111_arg_2 = var_110; [L352] SORT_4 var_111 = var_111_arg_0 ? var_111_arg_1 : var_111_arg_2; [L353] SORT_1 var_112_arg_0 = state_49; [L354] SORT_4 var_112_arg_1 = var_109; [L355] SORT_4 var_112_arg_2 = var_110; [L356] SORT_4 var_112 = var_112_arg_0 ? var_112_arg_1 : var_112_arg_2; [L357] SORT_4 var_113_arg_0 = var_111; [L358] SORT_4 var_113_arg_1 = var_112; [L359] SORT_4 var_113 = var_113_arg_0 + var_113_arg_1; [L360] SORT_1 var_114_arg_0 = state_69; [L361] SORT_4 var_114_arg_1 = var_109; [L362] SORT_4 var_114_arg_2 = var_110; [L363] SORT_4 var_114 = var_114_arg_0 ? var_114_arg_1 : var_114_arg_2; [L364] SORT_4 var_115_arg_0 = var_113; [L365] SORT_4 var_115_arg_1 = var_114; [L366] SORT_4 var_115 = var_115_arg_0 + var_115_arg_1; [L367] SORT_1 var_116_arg_0 = state_89; [L368] SORT_4 var_116_arg_1 = var_109; [L369] SORT_4 var_116_arg_2 = var_110; [L370] SORT_4 var_116 = var_116_arg_0 ? var_116_arg_1 : var_116_arg_2; [L371] SORT_4 var_117_arg_0 = var_115; [L372] SORT_4 var_117_arg_1 = var_116; [L373] SORT_4 var_117 = var_117_arg_0 + var_117_arg_1; [L374] var_117 = var_117 & mask_SORT_4 [L375] SORT_4 var_118_arg_0 = var_117; [L376] SORT_4 var_118_arg_1 = var_109; [L377] SORT_1 var_118 = var_118_arg_0 <= var_118_arg_1; [L378] SORT_1 var_119_arg_0 = ~state_107; [L379] var_119_arg_0 = var_119_arg_0 & mask_SORT_1 [L380] SORT_1 var_119_arg_1 = ~var_118; [L381] var_119_arg_1 = var_119_arg_1 & mask_SORT_1 [L382] SORT_1 var_119 = var_119_arg_0 & var_119_arg_1; [L383] var_119 = var_119 & mask_SORT_1 [L384] SORT_1 bad_120_arg_0 = var_119; [L385] CALL __VERIFIER_assert(!(bad_120_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:23:44,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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 4b628717e841a1f25041b262dec425d28d34a86158190aac9aa7a2c821c0add8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:23:47,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:23:47,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:23:47,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:23:47,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:23:47,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:23:47,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:23:47,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:23:47,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:23:47,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:23:47,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:23:47,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:23:47,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:23:47,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:23:47,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:23:47,672 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:23:47,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:23:47,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:23:47,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:23:47,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:23:47,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:23:47,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:23:47,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:23:47,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:23:47,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:23:47,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:23:47,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:23:47,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:23:47,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:23:47,695 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:23:47,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:23:47,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:23:47,698 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:23:47,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:23:47,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:23:47,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:23:47,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:23:47,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:23:47,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:23:47,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:23:47,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:23:47,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:23:47,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:23:47,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:23:47,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:23:47,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:23:47,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:23:47,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:23:47,769 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:23:47,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:23:47,770 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:23:47,770 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:23:47,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:23:47,771 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:23:47,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:23:47,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:23:47,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:23:47,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:23:47,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:23:47,774 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:23:47,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:23:47,775 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:23:47,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:23:47,776 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:23:47,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:23:47,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:23:47,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:23:47,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:23:47,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:47,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:23:47,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:23:47,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:23:47,779 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:23:47,779 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:23:47,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:23:47,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:23:47,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:23:47,781 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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b628717e841a1f25041b262dec425d28d34a86158190aac9aa7a2c821c0add8 [2022-11-19 08:23:48,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:23:48,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:23:48,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:23:48,262 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:23:48,263 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:23:48,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c [2022-11-19 08:23:48,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/4a0f918e5/01802bb1a9ca4466940a8e40eda0ecee/FLAG0b34d4207 [2022-11-19 08:23:49,314 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:23:49,315 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c [2022-11-19 08:23:49,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/4a0f918e5/01802bb1a9ca4466940a8e40eda0ecee/FLAG0b34d4207 [2022-11-19 08:23:49,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/data/4a0f918e5/01802bb1a9ca4466940a8e40eda0ecee [2022-11-19 08:23:49,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:23:49,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:23:49,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:49,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:23:49,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:23:49,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:49" (1/1) ... [2022-11-19 08:23:49,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13e9fe14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:49, skipping insertion in model container [2022-11-19 08:23:49,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:49" (1/1) ... [2022-11-19 08:23:49,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:23:49,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:23:50,294 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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:23:50,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:50,840 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:23:50,854 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_8385b9d0-1357-4a76-a61b-adecd3d05ef7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.6.prop1-func-interl.c[1014,1027] [2022-11-19 08:23:51,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:51,124 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:23:51,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51 WrapperNode [2022-11-19 08:23:51,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:51,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:51,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:23:51,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:23:51,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,354 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3126 [2022-11-19 08:23:51,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:51,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:23:51,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:23:51,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:23:51,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,467 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:23:51,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:23:51,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:23:51,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:23:51,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (1/1) ... [2022-11-19 08:23:51,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:51,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:51,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:23:51,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:23:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:23:51,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:23:52,351 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:23:52,354 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:23:59,123 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:23:59,131 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:23:59,132 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:23:59,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:59 BoogieIcfgContainer [2022-11-19 08:23:59,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:23:59,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:23:59,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:23:59,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:23:59,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:23:49" (1/3) ... [2022-11-19 08:23:59,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b691bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:59, skipping insertion in model container [2022-11-19 08:23:59,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:51" (2/3) ... [2022-11-19 08:23:59,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b691bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:59, skipping insertion in model container [2022-11-19 08:23:59,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:59" (3/3) ... [2022-11-19 08:23:59,146 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.6.prop1-func-interl.c [2022-11-19 08:23:59,169 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:23:59,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:23:59,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:23:59,242 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;@3e55643e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:23:59,242 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:23:59,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:23:59,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:59,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:23:59,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:23:59,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 08:23:59,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:23:59,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079946119] [2022-11-19 08:23:59,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:59,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:23:59,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:23:59,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:23:59,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:24:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:00,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-19 08:24:00,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:00,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:00,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:24:00,648 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:24:00,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079946119] [2022-11-19 08:24:00,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2079946119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:24:00,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:24:00,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:24:00,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161943524] [2022-11-19 08:24:00,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:24:00,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:24:00,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:24:00,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:24:00,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:24:00,713 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:24:01,132 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 08:24:01,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:24:01,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 08:24:01,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:24:01,147 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:24:01,147 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 08:24:01,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:24:01,160 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:24:01,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 08:24:01,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 08:24:01,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 08:24:01,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 08:24:01,199 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 08:24:01,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:24:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 08:24:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:24:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 08:24:01,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:24:01,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:24:01,202 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:24:01,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:24:01,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:24:01,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:24:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:24:01,419 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 08:24:01,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:24:01,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393219813] [2022-11-19 08:24:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:24:01,427 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:24:01,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:24:01,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:24:01,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:24:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:24:03,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 2779 conjuncts, 266 conjunts are in the unsatisfiable core [2022-11-19 08:24:03,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:24:09,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:24:09,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:25:30,218 WARN L233 SmtUtils]: Spent 1.03m on a formula simplification that was a NOOP. DAG size: 608 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:25:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:34,248 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:25:34,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393219813] [2022-11-19 08:25:34,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393219813] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:25:34,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [5734924] [2022-11-19 08:25:34,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:25:34,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:25:34,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:25:34,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:25:34,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 08:25:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:25:37,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 2779 conjuncts, 258 conjunts are in the unsatisfiable core [2022-11-19 08:25:37,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:25:45,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:25:45,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:33:16,419 WARN L233 SmtUtils]: Spent 7.39m on a formula simplification. DAG size of input: 210 DAG size of output: 148 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:51,838 WARN L233 SmtUtils]: Spent 2.90m on a formula simplification that was a NOOP. DAG size: 622 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 08:36:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:36:58,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [5734924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:36:58,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701450572] [2022-11-19 08:36:58,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:58,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:36:58,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:58,662 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:36:58,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8385b9d0-1357-4a76-a61b-adecd3d05ef7/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:36:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:59,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 2779 conjuncts, 261 conjunts are in the unsatisfiable core [2022-11-19 08:36:59,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:37:06,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:37:06,035 INFO L328 TraceCheckSpWp]: Computing backward predicates...