./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.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_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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_453cb18b-461b-48e4-91af-041e1d9610c3/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 bfc99d634919673e35fa0ada04482546879549efec51452d09a68cf46105833b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:19:42,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:19:42,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:19:42,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:19:42,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:19:42,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:19:42,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:19:42,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:19:42,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:19:42,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:19:42,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:19:42,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:19:42,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:19:42,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:19:42,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:19:42,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:19:42,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:19:42,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:19:42,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:19:42,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:19:42,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:19:42,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:19:42,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:19:42,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:19:42,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:19:42,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:19:42,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:19:42,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:19:42,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:19:42,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:19:42,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:19:42,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:19:42,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:19:42,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:19:42,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:19:42,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:19:42,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:19:42,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:19:42,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:19:42,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:19:42,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:19:42,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:19:42,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:19:42,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:19:42,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:19:42,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:19:42,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:19:42,544 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:19:42,544 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:19:42,544 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:19:42,544 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:19:42,545 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:19:42,545 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:19:42,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:19:42,546 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:19:42,546 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:19:42,546 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:19:42,546 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:19:42,547 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:19:42,547 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:19:42,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:19:42,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:19:42,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:19:42,549 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:19:42,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:19:42,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:19:42,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:19:42,550 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:19:42,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:19:42,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:19:42,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:19:42,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:19:42,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:19:42,552 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:19:42,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:19:42,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:19:42,553 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:19:42,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:19:42,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:19:42,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:19:42,554 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_453cb18b-461b-48e4-91af-041e1d9610c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc99d634919673e35fa0ada04482546879549efec51452d09a68cf46105833b [2022-11-19 07:19:42,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:19:42,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:19:42,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:19:42,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:19:42,872 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:19:42,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c [2022-11-19 07:19:42,960 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/300a9e77c/487efad1e52c44c7ae69638af0e1dd64/FLAG18a927be3 [2022-11-19 07:19:43,711 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:19:43,712 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c [2022-11-19 07:19:43,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/300a9e77c/487efad1e52c44c7ae69638af0e1dd64/FLAG18a927be3 [2022-11-19 07:19:43,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/300a9e77c/487efad1e52c44c7ae69638af0e1dd64 [2022-11-19 07:19:43,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:19:43,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:19:43,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:19:43,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:19:43,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:19:43,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:19:43" (1/1) ... [2022-11-19 07:19:43,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3eec0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:43, skipping insertion in model container [2022-11-19 07:19:43,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:19:43" (1/1) ... [2022-11-19 07:19:43,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:19:44,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:19:44,301 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_453cb18b-461b-48e4-91af-041e1d9610c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c[1014,1027] [2022-11-19 07:19:44,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:19:44,968 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:19:44,982 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_453cb18b-461b-48e4-91af-041e1d9610c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c[1014,1027] [2022-11-19 07:19:45,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:19:45,262 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:19:45,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45 WrapperNode [2022-11-19 07:19:45,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:19:45,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:19:45,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:19:45,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:19:45,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,638 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5233 [2022-11-19 07:19:45,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:19:45,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:19:45,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:19:45,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:19:45,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:45,878 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:46,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:46,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:19:46,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:19:46,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:19:46,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:19:46,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (1/1) ... [2022-11-19 07:19:46,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:19:46,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:46,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:19:46,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:19:46,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:19:46,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:19:46,934 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:19:46,936 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:20:03,500 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:20:33,876 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:20:33,876 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:20:33,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:33 BoogieIcfgContainer [2022-11-19 07:20:33,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:20:33,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:20:33,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:20:33,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:20:33,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:19:43" (1/3) ... [2022-11-19 07:20:33,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca46ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:33, skipping insertion in model container [2022-11-19 07:20:33,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:19:45" (2/3) ... [2022-11-19 07:20:33,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca46ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:33, skipping insertion in model container [2022-11-19 07:20:33,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:33" (3/3) ... [2022-11-19 07:20:33,894 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.gear.2.prop1-func-interl.c [2022-11-19 07:20:33,915 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:20:33,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:20:33,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:20:33,988 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;@27001ffe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:20:33,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:20:33,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:20:34,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:20:34,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:34,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:20:34,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:34,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:34,011 INFO L85 PathProgramCache]: Analyzing trace with hash 92707493, now seen corresponding path program 1 times [2022-11-19 07:20:34,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:20:34,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275789985] [2022-11-19 07:20:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:34,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:20:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:20:34,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:20:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:20:35,269 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:20:35,271 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:20:35,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:20:35,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:20:35,282 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:20:35,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:20:35,371 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 07:20:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:20:35 BoogieIcfgContainer [2022-11-19 07:20:35,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:20:35,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:20:35,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:20:35,408 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:20:35,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:33" (3/4) ... [2022-11-19 07:20:35,414 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:20:35,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:20:35,417 INFO L158 Benchmark]: Toolchain (without parser) took 51539.46ms. Allocated memory was 90.2MB in the beginning and 10.7GB in the end (delta: 10.6GB). Free memory was 51.8MB in the beginning and 10.3GB in the end (delta: -10.3GB). Peak memory consumption was 292.9MB. Max. memory is 16.1GB. [2022-11-19 07:20:35,418 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:20:35,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1383.14ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 51.6MB in the beginning and 52.3MB in the end (delta: -715.5kB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-19 07:20:35,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 374.88ms. Allocated memory was 119.5MB in the beginning and 226.5MB in the end (delta: 107.0MB). Free memory was 52.3MB in the beginning and 133.5MB in the end (delta: -81.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-11-19 07:20:35,428 INFO L158 Benchmark]: Boogie Preprocessor took 444.52ms. Allocated memory is still 226.5MB. Free memory was 133.5MB in the beginning and 141.0MB in the end (delta: -7.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-11-19 07:20:35,429 INFO L158 Benchmark]: RCFGBuilder took 47793.03ms. Allocated memory was 226.5MB in the beginning and 10.7GB in the end (delta: 10.4GB). Free memory was 141.0MB in the beginning and 9.6GB in the end (delta: -9.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-19 07:20:35,431 INFO L158 Benchmark]: TraceAbstraction took 1521.92ms. Allocated memory is still 10.7GB. Free memory was 9.6GB in the beginning and 10.3GB in the end (delta: -784.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:20:35,431 INFO L158 Benchmark]: Witness Printer took 7.54ms. Allocated memory is still 10.7GB. Free memory is still 10.3GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:20:35,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 44.2MB in the beginning and 44.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1383.14ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 51.6MB in the beginning and 52.3MB in the end (delta: -715.5kB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 374.88ms. Allocated memory was 119.5MB in the beginning and 226.5MB in the end (delta: 107.0MB). Free memory was 52.3MB in the beginning and 133.5MB in the end (delta: -81.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 444.52ms. Allocated memory is still 226.5MB. Free memory was 133.5MB in the beginning and 141.0MB in the end (delta: -7.5MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * RCFGBuilder took 47793.03ms. Allocated memory was 226.5MB in the beginning and 10.7GB in the end (delta: 10.4GB). Free memory was 141.0MB in the beginning and 9.6GB in the end (delta: -9.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * TraceAbstraction took 1521.92ms. Allocated memory is still 10.7GB. Free memory was 9.6GB in the beginning and 10.3GB in the end (delta: -784.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.54ms. Allocated memory is still 10.7GB. Free memory is still 10.3GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 397, overapproximation of shiftRight at line 401, overapproximation of bitwiseAnd at line 301, overapproximation of bitwiseComplement at line 399. 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 - 5); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (5 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 16); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (16 - 1); [L37] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 24); [L38] const SORT_5 msb_SORT_5 = (SORT_5)1 << (24 - 1); [L40] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 32); [L41] const SORT_6 msb_SORT_6 = (SORT_6)1 << (32 - 1); [L43] const SORT_3 var_7 = 0; [L44] const SORT_4 var_16 = 0; [L45] const SORT_1 var_23 = 0; [L46] const SORT_6 var_126 = 30; [L47] const SORT_4 var_127 = 0; [L48] const SORT_6 var_129 = 16; [L49] const SORT_3 var_134 = 255; [L50] const SORT_3 var_140 = 4; [L51] const SORT_3 var_143 = 6; [L52] const SORT_5 var_147 = 0; [L53] const SORT_6 var_150 = 1; [L54] const SORT_6 var_152 = 255; [L55] const SORT_6 var_154 = 0; [L56] const SORT_3 var_180 = 3; [L57] const SORT_3 var_208 = 10; [L58] const SORT_3 var_211 = 8; [L59] const SORT_3 var_227 = 18; [L60] const SORT_3 var_243 = 5; [L61] const SORT_3 var_244 = 0; [L62] const SORT_3 var_245 = 7; [L63] const SORT_6 var_293 = 4294967295; [L64] const SORT_4 var_311 = 65535; [L65] const SORT_4 var_312 = 1; [L66] const SORT_6 var_650 = 4; [L67] const SORT_6 var_660 = 2; [L68] const SORT_6 var_683 = 17; [L69] const SORT_6 var_695 = 5; [L70] const SORT_6 var_702 = 3; [L72] SORT_1 input_135; [L73] SORT_1 input_136; [L74] SORT_1 input_137; [L75] SORT_1 input_138; [L76] SORT_1 input_139; [L77] SORT_1 input_141; [L78] SORT_1 input_142; [L79] SORT_1 input_144; [L80] SORT_1 input_145; [L81] SORT_1 input_146; [L82] SORT_1 input_159; [L83] SORT_1 input_160; [L84] SORT_1 input_175; [L85] SORT_1 input_176; [L86] SORT_1 input_177; [L87] SORT_1 input_178; [L88] SORT_1 input_179; [L89] SORT_1 input_181; [L90] SORT_1 input_182; [L91] SORT_1 input_183; [L92] SORT_1 input_192; [L93] SORT_1 input_193; [L94] SORT_1 input_207; [L95] SORT_1 input_209; [L96] SORT_1 input_210; [L97] SORT_1 input_212; [L98] SORT_1 input_213; [L99] SORT_1 input_214; [L100] SORT_1 input_215; [L101] SORT_1 input_224; [L102] SORT_1 input_225; [L103] SORT_1 input_226; [L104] SORT_1 input_241; [L105] SORT_1 input_242; [L106] SORT_1 input_254; [L107] SORT_1 input_255; [L108] SORT_1 input_256; [L109] SORT_1 input_257; [L110] SORT_1 input_258; [L111] SORT_1 input_259; [L112] SORT_1 input_260; [L113] SORT_1 input_292; [L114] SORT_1 input_298; [L115] SORT_1 input_374; [L116] SORT_1 input_383; [L117] SORT_1 input_385; [L118] SORT_1 input_391; [L119] SORT_1 input_427; [L120] SORT_1 input_445; [L121] SORT_1 input_459; [L123] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L124] SORT_3 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L125] SORT_3 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L126] SORT_3 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L127] SORT_4 state_17 = __VERIFIER_nondet_ushort() & mask_SORT_4; [L128] SORT_4 state_19 = __VERIFIER_nondet_ushort() & mask_SORT_4; [L129] SORT_4 state_21 = __VERIFIER_nondet_ushort() & mask_SORT_4; [L130] SORT_1 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] SORT_1 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L139] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L140] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L142] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] SORT_1 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L146] SORT_1 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] SORT_1 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L151] SORT_1 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] SORT_1 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L154] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L155] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] SORT_1 state_76 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L157] SORT_1 state_78 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] SORT_1 state_80 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] SORT_1 state_82 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L160] SORT_1 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L161] SORT_1 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L162] SORT_1 state_88 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L163] SORT_1 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] SORT_1 state_92 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] SORT_1 state_94 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] SORT_1 state_96 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] SORT_1 state_98 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L168] SORT_1 state_100 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L169] SORT_1 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L170] SORT_1 state_104 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L171] SORT_1 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L172] SORT_1 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L173] SORT_1 state_110 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] SORT_1 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] SORT_1 state_114 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L176] SORT_1 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] SORT_1 state_118 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] SORT_1 state_120 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] SORT_1 state_122 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] SORT_1 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] SORT_3 init_9_arg_1 = var_7; [L183] state_8 = init_9_arg_1 [L184] SORT_3 init_11_arg_1 = var_7; [L185] state_10 = init_11_arg_1 [L186] SORT_3 init_13_arg_1 = var_7; [L187] state_12 = init_13_arg_1 [L188] SORT_3 init_15_arg_1 = var_7; [L189] state_14 = init_15_arg_1 [L190] SORT_4 init_18_arg_1 = var_16; [L191] state_17 = init_18_arg_1 [L192] SORT_4 init_20_arg_1 = var_16; [L193] state_19 = init_20_arg_1 [L194] SORT_4 init_22_arg_1 = var_16; [L195] state_21 = init_22_arg_1 [L196] SORT_1 init_25_arg_1 = var_23; [L197] state_24 = init_25_arg_1 [L198] SORT_1 init_27_arg_1 = var_23; [L199] state_26 = init_27_arg_1 [L200] SORT_1 init_29_arg_1 = var_23; [L201] state_28 = init_29_arg_1 [L202] SORT_1 init_31_arg_1 = var_23; [L203] state_30 = init_31_arg_1 [L204] SORT_1 init_33_arg_1 = var_23; [L205] state_32 = init_33_arg_1 [L206] SORT_1 init_35_arg_1 = var_23; [L207] state_34 = init_35_arg_1 [L208] SORT_1 init_37_arg_1 = var_23; [L209] state_36 = init_37_arg_1 [L210] SORT_1 init_39_arg_1 = var_23; [L211] state_38 = init_39_arg_1 [L212] SORT_1 init_41_arg_1 = var_23; [L213] state_40 = init_41_arg_1 [L214] SORT_1 init_43_arg_1 = var_23; [L215] state_42 = init_43_arg_1 [L216] SORT_1 init_45_arg_1 = var_23; [L217] state_44 = init_45_arg_1 [L218] SORT_1 init_47_arg_1 = var_23; [L219] state_46 = init_47_arg_1 [L220] SORT_1 init_49_arg_1 = var_23; [L221] state_48 = init_49_arg_1 [L222] SORT_1 init_51_arg_1 = var_23; [L223] state_50 = init_51_arg_1 [L224] SORT_1 init_53_arg_1 = var_23; [L225] state_52 = init_53_arg_1 [L226] SORT_1 init_55_arg_1 = var_23; [L227] state_54 = init_55_arg_1 [L228] SORT_1 init_57_arg_1 = var_23; [L229] state_56 = init_57_arg_1 [L230] SORT_1 init_59_arg_1 = var_23; [L231] state_58 = init_59_arg_1 [L232] SORT_1 init_61_arg_1 = var_23; [L233] state_60 = init_61_arg_1 [L234] SORT_1 init_63_arg_1 = var_23; [L235] state_62 = init_63_arg_1 [L236] SORT_1 init_65_arg_1 = var_23; [L237] state_64 = init_65_arg_1 [L238] SORT_1 init_67_arg_1 = var_23; [L239] state_66 = init_67_arg_1 [L240] SORT_1 init_69_arg_1 = var_23; [L241] state_68 = init_69_arg_1 [L242] SORT_1 init_71_arg_1 = var_23; [L243] state_70 = init_71_arg_1 [L244] SORT_1 init_73_arg_1 = var_23; [L245] state_72 = init_73_arg_1 [L246] SORT_1 init_75_arg_1 = var_23; [L247] state_74 = init_75_arg_1 [L248] SORT_1 init_77_arg_1 = var_23; [L249] state_76 = init_77_arg_1 [L250] SORT_1 init_79_arg_1 = var_23; [L251] state_78 = init_79_arg_1 [L252] SORT_1 init_81_arg_1 = var_23; [L253] state_80 = init_81_arg_1 [L254] SORT_1 init_83_arg_1 = var_23; [L255] state_82 = init_83_arg_1 [L256] SORT_1 init_85_arg_1 = var_23; [L257] state_84 = init_85_arg_1 [L258] SORT_1 init_87_arg_1 = var_23; [L259] state_86 = init_87_arg_1 [L260] SORT_1 init_89_arg_1 = var_23; [L261] state_88 = init_89_arg_1 [L262] SORT_1 init_91_arg_1 = var_23; [L263] state_90 = init_91_arg_1 [L264] SORT_1 init_93_arg_1 = var_23; [L265] state_92 = init_93_arg_1 [L266] SORT_1 init_95_arg_1 = var_23; [L267] state_94 = init_95_arg_1 [L268] SORT_1 init_97_arg_1 = var_23; [L269] state_96 = init_97_arg_1 [L270] SORT_1 init_99_arg_1 = var_23; [L271] state_98 = init_99_arg_1 [L272] SORT_1 init_101_arg_1 = var_23; [L273] state_100 = init_101_arg_1 [L274] SORT_1 init_103_arg_1 = var_23; [L275] state_102 = init_103_arg_1 [L276] SORT_1 init_105_arg_1 = var_23; [L277] state_104 = init_105_arg_1 [L278] SORT_1 init_107_arg_1 = var_23; [L279] state_106 = init_107_arg_1 [L280] SORT_1 init_109_arg_1 = var_23; [L281] state_108 = init_109_arg_1 [L282] SORT_1 init_111_arg_1 = var_23; [L283] state_110 = init_111_arg_1 [L284] SORT_1 init_113_arg_1 = var_23; [L285] state_112 = init_113_arg_1 [L286] SORT_1 init_115_arg_1 = var_23; [L287] state_114 = init_115_arg_1 [L288] SORT_1 init_117_arg_1 = var_23; [L289] state_116 = init_117_arg_1 [L290] SORT_1 init_119_arg_1 = var_23; [L291] state_118 = init_119_arg_1 [L292] SORT_1 init_121_arg_1 = var_23; [L293] state_120 = init_121_arg_1 [L294] SORT_1 init_123_arg_1 = var_23; [L295] state_122 = init_123_arg_1 [L296] SORT_1 init_125_arg_1 = var_23; [L297] state_124 = init_125_arg_1 VAL [init_101_arg_1=0, init_103_arg_1=0, init_105_arg_1=0, init_107_arg_1=0, init_109_arg_1=0, init_111_arg_1=0, init_113_arg_1=0, init_115_arg_1=0, init_117_arg_1=0, init_119_arg_1=0, init_11_arg_1=0, init_121_arg_1=0, init_123_arg_1=0, init_125_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_67_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, init_77_arg_1=0, init_79_arg_1=0, init_81_arg_1=0, init_83_arg_1=0, init_85_arg_1=0, init_87_arg_1=0, init_89_arg_1=0, init_91_arg_1=0, init_93_arg_1=0, init_95_arg_1=0, init_97_arg_1=0, init_99_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=255, mask_SORT_4=65535, mask_SORT_5=4294967295, mask_SORT_6=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=128, msb_SORT_4=32768, msb_SORT_5=8388608, msb_SORT_6=2147483648, state_10=0, state_100=0, state_102=0, state_104=0, state_106=0, state_108=0, state_110=0, state_112=0, state_114=0, state_116=0, state_118=0, state_12=0, state_120=0, state_122=0, state_124=0, state_14=0, state_17=0, state_19=0, state_21=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_58=0, state_60=0, state_62=0, state_64=0, state_66=0, state_68=0, state_70=0, state_72=0, state_74=0, state_76=0, state_78=0, state_8=0, state_80=0, state_82=0, state_84=0, state_86=0, state_88=0, state_90=0, state_92=0, state_94=0, state_96=0, state_98=0, var_126=30, var_127=0, var_129=16, var_134=255, var_140=4, var_143=6, var_147=0, var_150=1, var_152=255, var_154=0, var_16=0, var_180=3, var_208=10, var_211=8, var_227=18, var_23=0, var_243=5, var_244=0, var_245=7, var_293=4294967295, var_311=65535, var_312=1, var_650=4, var_660=2, var_683=17, var_695=5, var_7=0, var_702=3] [L300] input_135 = __VERIFIER_nondet_uchar() [L301] input_135 = input_135 & mask_SORT_1 [L302] input_136 = __VERIFIER_nondet_uchar() [L303] input_136 = input_136 & mask_SORT_1 [L304] input_137 = __VERIFIER_nondet_uchar() [L305] input_137 = input_137 & mask_SORT_1 [L306] input_138 = __VERIFIER_nondet_uchar() [L307] input_138 = input_138 & mask_SORT_1 [L308] input_139 = __VERIFIER_nondet_uchar() [L309] input_139 = input_139 & mask_SORT_1 [L310] input_141 = __VERIFIER_nondet_uchar() [L311] input_141 = input_141 & mask_SORT_1 [L312] input_142 = __VERIFIER_nondet_uchar() [L313] input_142 = input_142 & mask_SORT_1 [L314] input_144 = __VERIFIER_nondet_uchar() [L315] input_144 = input_144 & mask_SORT_1 [L316] input_145 = __VERIFIER_nondet_uchar() [L317] input_145 = input_145 & mask_SORT_1 [L318] input_146 = __VERIFIER_nondet_uchar() [L319] input_146 = input_146 & mask_SORT_1 [L320] input_159 = __VERIFIER_nondet_uchar() [L321] input_159 = input_159 & mask_SORT_1 [L322] input_160 = __VERIFIER_nondet_uchar() [L323] input_160 = input_160 & mask_SORT_1 [L324] input_175 = __VERIFIER_nondet_uchar() [L325] input_175 = input_175 & mask_SORT_1 [L326] input_176 = __VERIFIER_nondet_uchar() [L327] input_176 = input_176 & mask_SORT_1 [L328] input_177 = __VERIFIER_nondet_uchar() [L329] input_177 = input_177 & mask_SORT_1 [L330] input_178 = __VERIFIER_nondet_uchar() [L331] input_178 = input_178 & mask_SORT_1 [L332] input_179 = __VERIFIER_nondet_uchar() [L333] input_179 = input_179 & mask_SORT_1 [L334] input_181 = __VERIFIER_nondet_uchar() [L335] input_181 = input_181 & mask_SORT_1 [L336] input_182 = __VERIFIER_nondet_uchar() [L337] input_182 = input_182 & mask_SORT_1 [L338] input_183 = __VERIFIER_nondet_uchar() [L339] input_183 = input_183 & mask_SORT_1 [L340] input_192 = __VERIFIER_nondet_uchar() [L341] input_192 = input_192 & mask_SORT_1 [L342] input_193 = __VERIFIER_nondet_uchar() [L343] input_193 = input_193 & mask_SORT_1 [L344] input_207 = __VERIFIER_nondet_uchar() [L345] input_207 = input_207 & mask_SORT_1 [L346] input_209 = __VERIFIER_nondet_uchar() [L347] input_209 = input_209 & mask_SORT_1 [L348] input_210 = __VERIFIER_nondet_uchar() [L349] input_210 = input_210 & mask_SORT_1 [L350] input_212 = __VERIFIER_nondet_uchar() [L351] input_212 = input_212 & mask_SORT_1 [L352] input_213 = __VERIFIER_nondet_uchar() [L353] input_213 = input_213 & mask_SORT_1 [L354] input_214 = __VERIFIER_nondet_uchar() [L355] input_214 = input_214 & mask_SORT_1 [L356] input_215 = __VERIFIER_nondet_uchar() [L357] input_215 = input_215 & mask_SORT_1 [L358] input_224 = __VERIFIER_nondet_uchar() [L359] input_224 = input_224 & mask_SORT_1 [L360] input_225 = __VERIFIER_nondet_uchar() [L361] input_225 = input_225 & mask_SORT_1 [L362] input_226 = __VERIFIER_nondet_uchar() [L363] input_226 = input_226 & mask_SORT_1 [L364] input_241 = __VERIFIER_nondet_uchar() [L365] input_241 = input_241 & mask_SORT_1 [L366] input_242 = __VERIFIER_nondet_uchar() [L367] input_242 = input_242 & mask_SORT_1 [L368] input_254 = __VERIFIER_nondet_uchar() [L369] input_254 = input_254 & mask_SORT_1 [L370] input_255 = __VERIFIER_nondet_uchar() [L371] input_255 = input_255 & mask_SORT_1 [L372] input_256 = __VERIFIER_nondet_uchar() [L373] input_256 = input_256 & mask_SORT_1 [L374] input_257 = __VERIFIER_nondet_uchar() [L375] input_257 = input_257 & mask_SORT_1 [L376] input_258 = __VERIFIER_nondet_uchar() [L377] input_258 = input_258 & mask_SORT_1 [L378] input_259 = __VERIFIER_nondet_uchar() [L379] input_259 = input_259 & mask_SORT_1 [L380] input_260 = __VERIFIER_nondet_uchar() [L381] input_260 = input_260 & mask_SORT_1 [L382] input_292 = __VERIFIER_nondet_uchar() [L383] input_292 = input_292 & mask_SORT_1 [L384] input_298 = __VERIFIER_nondet_uchar() [L385] input_298 = input_298 & mask_SORT_1 [L386] input_374 = __VERIFIER_nondet_uchar() [L387] input_383 = __VERIFIER_nondet_uchar() [L388] input_385 = __VERIFIER_nondet_uchar() [L389] input_391 = __VERIFIER_nondet_uchar() [L390] input_427 = __VERIFIER_nondet_uchar() [L391] input_445 = __VERIFIER_nondet_uchar() [L392] input_459 = __VERIFIER_nondet_uchar() [L395] SORT_4 var_128_arg_0 = state_19; [L396] SORT_4 var_128_arg_1 = var_127; [L397] SORT_6 var_128 = ((SORT_6)var_128_arg_0 << 16) | var_128_arg_1; [L398] SORT_6 var_130_arg_0 = var_128; [L399] var_130_arg_0 = (var_130_arg_0 & msb_SORT_6) ? (var_130_arg_0 | ~mask_SORT_6) : (var_130_arg_0 & mask_SORT_6) [L400] SORT_6 var_130_arg_1 = var_129; [L401] SORT_6 var_130 = (int)var_130_arg_0 >> var_130_arg_1; [L402] var_130 = (var_130_arg_0 & msb_SORT_6) ? (var_130 | ~(mask_SORT_6 >> var_130_arg_1)) : var_130 [L403] var_130 = var_130 & mask_SORT_6 [L404] SORT_6 var_131_arg_0 = var_126; [L405] SORT_6 var_131_arg_1 = var_130; [L406] SORT_1 var_131 = var_131_arg_0 == var_131_arg_1; [L407] SORT_1 var_132_arg_0 = ~state_124; [L408] var_132_arg_0 = var_132_arg_0 & mask_SORT_1 [L409] SORT_1 var_132_arg_1 = var_131; [L410] SORT_1 var_132 = var_132_arg_0 & var_132_arg_1; [L411] var_132 = var_132 & mask_SORT_1 [L412] SORT_1 bad_133_arg_0 = var_132; [L413] CALL __VERIFIER_assert(!(bad_133_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:20:35,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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_453cb18b-461b-48e4-91af-041e1d9610c3/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 bfc99d634919673e35fa0ada04482546879549efec51452d09a68cf46105833b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:20:38,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:20:38,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:20:38,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:20:38,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:20:38,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:20:38,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:20:38,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:20:38,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:20:38,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:20:38,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:20:38,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:20:38,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:20:38,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:20:38,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:20:38,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:20:38,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:20:38,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:20:38,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:20:38,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:20:38,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:20:38,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:20:38,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:20:38,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:20:38,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:20:38,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:20:38,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:20:38,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:20:38,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:20:38,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:20:38,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:20:38,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:20:38,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:20:38,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:20:38,496 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:20:38,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:20:38,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:20:38,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:20:38,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:20:38,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:20:38,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:20:38,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:20:38,557 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:20:38,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:20:38,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:20:38,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:20:38,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:20:38,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:20:38,561 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:20:38,561 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:20:38,561 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:20:38,561 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:20:38,563 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:20:38,563 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:20:38,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:20:38,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:20:38,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:20:38,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:20:38,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:20:38,566 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:20:38,567 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:20:38,567 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:20:38,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:20:38,567 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:20:38,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:20:38,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:20:38,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:20:38,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:20:38,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:38,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:20:38,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:20:38,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:20:38,570 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:20:38,570 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:20:38,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:20:38,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:20:38,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:20:38,572 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_453cb18b-461b-48e4-91af-041e1d9610c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc99d634919673e35fa0ada04482546879549efec51452d09a68cf46105833b [2022-11-19 07:20:39,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:20:39,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:20:39,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:20:39,075 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:20:39,076 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:20:39,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c [2022-11-19 07:20:39,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/112523c99/37a6c2412d0f431bbfeb3f1d2842b4ef/FLAG9503b39ad [2022-11-19 07:20:40,028 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:20:40,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c [2022-11-19 07:20:40,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/112523c99/37a6c2412d0f431bbfeb3f1d2842b4ef/FLAG9503b39ad [2022-11-19 07:20:40,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/data/112523c99/37a6c2412d0f431bbfeb3f1d2842b4ef [2022-11-19 07:20:40,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:20:40,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:20:40,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:20:40,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:20:40,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:20:40,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:20:40" (1/1) ... [2022-11-19 07:20:40,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295f8f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:40, skipping insertion in model container [2022-11-19 07:20:40,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:20:40" (1/1) ... [2022-11-19 07:20:40,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:20:40,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:20:40,500 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_453cb18b-461b-48e4-91af-041e1d9610c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c[1014,1027] [2022-11-19 07:20:41,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:20:41,137 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:20:41,151 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_453cb18b-461b-48e4-91af-041e1d9610c3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.gear.2.prop1-func-interl.c[1014,1027] [2022-11-19 07:20:41,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:20:41,468 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:20:41,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41 WrapperNode [2022-11-19 07:20:41,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:20:41,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:41,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:20:41,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:20:41,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,766 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3532 [2022-11-19 07:20:41,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:20:41,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:20:41,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:20:41,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:20:41,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:41,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:42,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:20:42,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:20:42,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:20:42,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:20:42,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (1/1) ... [2022-11-19 07:20:42,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:20:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:20:42,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:20:42,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:20:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:20:42,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:20:42,993 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:20:42,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:20:50,379 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:20:50,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:20:50,389 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:20:50,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:50 BoogieIcfgContainer [2022-11-19 07:20:50,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:20:50,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:20:50,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:20:50,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:20:50,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:20:40" (1/3) ... [2022-11-19 07:20:50,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638db622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:50, skipping insertion in model container [2022-11-19 07:20:50,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:20:41" (2/3) ... [2022-11-19 07:20:50,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638db622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:20:50, skipping insertion in model container [2022-11-19 07:20:50,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:20:50" (3/3) ... [2022-11-19 07:20:50,403 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.gear.2.prop1-func-interl.c [2022-11-19 07:20:50,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:20:50,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:20:50,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:20:50,515 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;@6ae24313, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:20:50,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:20:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:20:50,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:20:50,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:50,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:20:50,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:50,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:50,538 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 07:20:50,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:20:50,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452272896] [2022-11-19 07:20:50,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:50,560 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:20:50,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:20:50,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:20:50,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:20:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:51,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-19 07:20:51,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:20:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:20:51,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:20:51,991 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:20:51,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1452272896] [2022-11-19 07:20:51,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1452272896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:20:51,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:20:51,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:20:51,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171098441] [2022-11-19 07:20:51,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:20:52,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:20:52,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:20:52,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:20:52,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:20:52,049 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:20:53,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:20:53,054 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 07:20:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:20:53,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:20:53,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:20:53,067 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:20:53,067 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:20:53,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:20:53,074 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:20:53,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-19 07:20:53,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:20:53,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 07:20:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:20:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:20:53,113 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:20:53,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:20:53,113 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:20:53,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:20:53,114 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:20:53,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:20:53,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:20:53,115 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 07:20:53,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:20:53,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:20:53,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:20:53,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:20:53,333 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 07:20:53,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:20:53,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369959020] [2022-11-19 07:20:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:20:53,340 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:20:53,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:20:53,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:20:53,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:20:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:20:55,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 65 conjunts are in the unsatisfiable core [2022-11-19 07:20:55,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:21:50,016 WARN L233 SmtUtils]: Spent 53.15s on a formula simplification. DAG size of input: 120 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:21:50,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:21:50,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:22:16,991 WARN L233 SmtUtils]: Spent 24.99s on a formula simplification. DAG size of input: 197 DAG size of output: 164 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:53,409 WARN L233 SmtUtils]: Spent 33.37s on a formula simplification that was a NOOP. DAG size: 173 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:22:53,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:22:53,551 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:22:53,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369959020] [2022-11-19 07:22:53,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369959020] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:22:53,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2115730016] [2022-11-19 07:22:53,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:22:53,553 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:22:53,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:22:53,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:22:53,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:22:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:22:57,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-19 07:22:57,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:23:53,951 WARN L233 SmtUtils]: Spent 53.38s on a formula simplification. DAG size of input: 122 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:23:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:23:54,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:24:06,078 WARN L233 SmtUtils]: Spent 7.34s on a formula simplification. DAG size of input: 193 DAG size of output: 189 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:17,945 WARN L233 SmtUtils]: Spent 1.08m on a formula simplification that was a NOOP. DAG size: 195 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:25:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:25:18,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2115730016] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:25:18,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320838322] [2022-11-19 07:25:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:25:18,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:25:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:25:18,038 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:25:18,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:25:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:25:19,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 68 conjunts are in the unsatisfiable core [2022-11-19 07:25:19,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:26:01,495 WARN L233 SmtUtils]: Spent 37.58s on a formula simplification. DAG size of input: 116 DAG size of output: 99 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:26:02,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:26:36,797 WARN L233 SmtUtils]: Spent 15.73s on a formula simplification that was a NOOP. DAG size: 195 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:26:56,365 WARN L233 SmtUtils]: Spent 15.02s on a formula simplification that was a NOOP. DAG size: 197 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:18,077 WARN L233 SmtUtils]: Spent 54.00s on a formula simplification that was a NOOP. DAG size: 204 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:28:18,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320838322] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:28:18,203 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:28:18,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 24 [2022-11-19 07:28:18,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971491578] [2022-11-19 07:28:18,204 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:28:18,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-19 07:28:18,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:28:18,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-19 07:28:18,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=392, Unknown=27, NotChecked=0, Total=552 [2022-11-19 07:28:18,208 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:56,947 WARN L233 SmtUtils]: Spent 36.06s on a formula simplification. DAG size of input: 185 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:28:57,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:28:57,064 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-19 07:28:57,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:28:57,065 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:28:57,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:28:57,065 INFO L225 Difference]: With dead ends: 14 [2022-11-19 07:28:57,065 INFO L226 Difference]: Without dead ends: 12 [2022-11-19 07:28:57,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 465.7s TimeCoverageRelationStatistics Valid=162, Invalid=460, Unknown=28, NotChecked=0, Total=650 [2022-11-19 07:28:57,068 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:28:57,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 42 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 11 Unchecked, 0.1s Time] [2022-11-19 07:28:57,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-19 07:28:57,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-19 07:28:57,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:57,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 07:28:57,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 07:28:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:28:57,078 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 07:28:57,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 24 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:28:57,079 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 07:28:57,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:28:57,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:28:57,080 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 07:28:57,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:57,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:57,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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)] Forceful destruction successful, exit code 0 [2022-11-19 07:28:57,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:28:57,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:28:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:28:57,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 07:28:57,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:28:57,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997067933] [2022-11-19 07:28:57,706 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:28:57,706 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:28:57,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:28:57,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:28:57,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_453cb18b-461b-48e4-91af-041e1d9610c3/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 (6)] Waiting until timeout for monitored process [2022-11-19 07:29:00,311 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:29:00,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:29:00,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 6030 conjuncts, 132 conjunts are in the unsatisfiable core [2022-11-19 07:29:00,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:29:47,836 WARN L233 SmtUtils]: Spent 45.12s on a formula simplification. DAG size of input: 156 DAG size of output: 141 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:30:04,237 WARN L233 SmtUtils]: Spent 15.72s on a formula simplification that was a NOOP. DAG size: 174 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:32:24,347 WARN L233 SmtUtils]: Spent 2.26m on a formula simplification. DAG size of input: 419 DAG size of output: 350 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-19 07:32:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:25,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:35,622 WARN L233 SmtUtils]: Spent 7.46s on a formula simplification. DAG size of input: 173 DAG size of output: 170 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)