./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh --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 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 --- 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-2329fc7 [2022-12-14 06:42:07,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:42:07,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:42:07,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:42:07,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:42:07,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:42:07,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:42:07,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:42:07,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:42:07,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:42:07,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:42:07,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:42:07,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:42:07,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:42:07,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:42:07,971 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:42:07,972 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:42:07,973 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:42:07,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:42:07,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:42:07,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:42:07,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:42:07,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:42:07,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:42:07,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:42:07,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:42:07,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:42:07,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:42:07,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:42:07,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:42:07,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:42:07,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:42:07,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:42:07,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:42:07,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:42:07,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:42:07,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:42:07,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:42:07,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:42:07,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:42:07,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:42:07,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:42:08,015 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:42:08,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:42:08,015 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:42:08,016 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:42:08,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:42:08,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:42:08,016 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:42:08,017 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:42:08,017 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:42:08,017 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:42:08,017 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:42:08,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:42:08,017 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:42:08,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:42:08,018 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:42:08,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:42:08,018 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:42:08,018 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:42:08,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:42:08,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:42:08,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:42:08,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:42:08,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:42:08,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:42:08,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:42:08,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:42:08,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:42:08,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:42:08,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:42:08,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:42:08,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:42:08,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:42:08,022 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_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 [2022-12-14 06:42:08,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:42:08,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:42:08,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:42:08,233 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:42:08,234 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:42:08,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-12-14 06:42:10,880 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:42:11,040 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:42:11,040 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-12-14 06:42:11,049 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data/804b8cdd9/521b0d85c42d496cbde20869c499c37b/FLAG9c1edd147 [2022-12-14 06:42:11,062 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data/804b8cdd9/521b0d85c42d496cbde20869c499c37b [2022-12-14 06:42:11,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:42:11,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:42:11,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:42:11,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:42:11,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:42:11,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ccbd5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11, skipping insertion in model container [2022-12-14 06:42:11,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:42:11,107 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:42:11,241 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-12-14 06:42:11,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:42:11,321 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:42:11,332 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-12-14 06:42:11,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:42:11,390 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:42:11,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11 WrapperNode [2022-12-14 06:42:11,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:42:11,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:42:11,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:42:11,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:42:11,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,439 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 361 [2022-12-14 06:42:11,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:42:11,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:42:11,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:42:11,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:42:11,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:42:11,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:42:11,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:42:11,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:42:11,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (1/1) ... [2022-12-14 06:42:11,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:42:11,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:42:11,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:42:11,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:42:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:42:11,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:42:11,647 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:42:11,649 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:42:12,235 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:42:12,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:42:12,252 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:42:12,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:42:12 BoogieIcfgContainer [2022-12-14 06:42:12,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:42:12,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:42:12,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:42:12,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:42:12,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:42:11" (1/3) ... [2022-12-14 06:42:12,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2b8dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:42:12, skipping insertion in model container [2022-12-14 06:42:12,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:11" (2/3) ... [2022-12-14 06:42:12,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2b8dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:42:12, skipping insertion in model container [2022-12-14 06:42:12,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:42:12" (3/3) ... [2022-12-14 06:42:12,262 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-12-14 06:42:12,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:42:12,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:42:12,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:42:12,315 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;@72a3acb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:42:12,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:42:12,318 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) [2022-12-14 06:42:12,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:42:12,322 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:42:12,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:42:12,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:42:12,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:42:12,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 06:42:12,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:42:12,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183584013] [2022-12-14 06:42:12,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:12,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:42:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:42:12,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:42:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:42:12,544 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:42:12,546 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:42:12,546 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:42:12,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:42:12,551 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:42:12,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:42:12,566 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 06:42:12,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:42:12 BoogieIcfgContainer [2022-12-14 06:42:12,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:42:12,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:42:12,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:42:12,572 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:42:12,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:42:12" (3/4) ... [2022-12-14 06:42:12,575 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:42:12,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:42:12,576 INFO L158 Benchmark]: Toolchain (without parser) took 1508.45ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 100.3MB in the beginning and 87.8MB in the end (delta: 12.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-12-14 06:42:12,576 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:42:12,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.12ms. Allocated memory is still 140.5MB. Free memory was 99.8MB in the beginning and 83.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:42:12,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.05ms. Allocated memory is still 140.5MB. Free memory was 82.6MB in the beginning and 78.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:42:12,577 INFO L158 Benchmark]: Boogie Preprocessor took 35.27ms. Allocated memory is still 140.5MB. Free memory was 78.9MB in the beginning and 76.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:42:12,578 INFO L158 Benchmark]: RCFGBuilder took 778.63ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 76.8MB in the beginning and 115.1MB in the end (delta: -38.3MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-12-14 06:42:12,578 INFO L158 Benchmark]: TraceAbstraction took 314.96ms. Allocated memory is still 178.3MB. Free memory was 114.0MB in the beginning and 87.8MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 06:42:12,578 INFO L158 Benchmark]: Witness Printer took 3.00ms. Allocated memory is still 178.3MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:42:12,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 140.5MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.12ms. Allocated memory is still 140.5MB. Free memory was 99.8MB in the beginning and 83.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.05ms. Allocated memory is still 140.5MB. Free memory was 82.6MB in the beginning and 78.9MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.27ms. Allocated memory is still 140.5MB. Free memory was 78.9MB in the beginning and 76.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 778.63ms. Allocated memory was 140.5MB in the beginning and 178.3MB in the end (delta: 37.7MB). Free memory was 76.8MB in the beginning and 115.1MB in the end (delta: -38.3MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * TraceAbstraction took 314.96ms. Allocated memory is still 178.3MB. Free memory was 114.0MB in the beginning and 87.8MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.00ms. Allocated memory is still 178.3MB. Free memory is still 87.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 145, overapproximation of bitwiseOr at line 143, overapproximation of bitwiseAnd at line 109. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2); [L32] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1); [L34] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 3); [L35] const SORT_59 msb_SORT_59 = (SORT_59)1 << (3 - 1); [L37] const SORT_16 var_17 = 0; [L38] const SORT_16 var_20 = 3; [L39] const SORT_3 var_22 = 1; [L40] const SORT_3 var_36 = 0; [L41] const SORT_16 var_77 = 2; [L42] const SORT_16 var_80 = 1; [L43] const SORT_59 var_92 = 0; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_3 input_6; [L49] SORT_3 input_7; [L50] SORT_3 input_8; [L51] SORT_1 input_9; [L52] SORT_3 input_10; [L53] SORT_3 input_11; [L54] SORT_1 input_12; [L55] SORT_3 input_13; [L56] SORT_3 input_14; [L57] SORT_3 input_15; [L58] SORT_1 input_32; [L59] SORT_3 input_34; [L60] SORT_1 input_39; [L61] SORT_3 input_41; [L62] SORT_1 input_47; [L63] SORT_1 input_53; [L64] SORT_1 input_55; [L65] SORT_1 input_57; [L66] SORT_59 input_60; [L67] SORT_59 input_66; [L68] SORT_1 input_69; [L69] SORT_3 input_73; [L71] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L72] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L73] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L74] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L75] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L76] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L78] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] SORT_3 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L82] SORT_16 init_19_arg_1 = var_17; [L83] state_18 = init_19_arg_1 [L84] SORT_3 init_24_arg_1 = var_22; [L85] state_23 = init_24_arg_1 [L86] SORT_3 init_38_arg_1 = var_36; [L87] state_37 = init_38_arg_1 [L88] SORT_3 init_44_arg_1 = var_36; [L89] state_43 = init_44_arg_1 [L90] SORT_3 init_46_arg_1 = var_36; [L91] state_45 = init_46_arg_1 [L92] SORT_3 init_50_arg_1 = var_36; [L93] state_49 = init_50_arg_1 [L94] SORT_3 init_52_arg_1 = var_36; [L95] state_51 = init_52_arg_1 [L96] SORT_3 init_63_arg_1 = var_36; [L97] state_62 = init_63_arg_1 [L98] SORT_3 init_65_arg_1 = var_36; [L99] state_64 = init_65_arg_1 [L100] SORT_3 init_72_arg_1 = var_36; [L101] state_71 = init_72_arg_1 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L104] input_2 = __VERIFIER_nondet_uint() [L105] input_4 = __VERIFIER_nondet_uchar() [L106] input_5 = __VERIFIER_nondet_uint() [L107] input_6 = __VERIFIER_nondet_uchar() [L108] input_7 = __VERIFIER_nondet_uchar() [L109] input_7 = input_7 & mask_SORT_3 [L110] input_8 = __VERIFIER_nondet_uchar() [L111] input_8 = input_8 & mask_SORT_3 [L112] input_9 = __VERIFIER_nondet_uint() [L113] input_10 = __VERIFIER_nondet_uchar() [L114] input_10 = input_10 & mask_SORT_3 [L115] input_11 = __VERIFIER_nondet_uchar() [L116] input_11 = input_11 & mask_SORT_3 [L117] input_12 = __VERIFIER_nondet_uint() [L118] input_13 = __VERIFIER_nondet_uchar() [L119] input_14 = __VERIFIER_nondet_uchar() [L120] input_15 = __VERIFIER_nondet_uchar() [L121] input_32 = __VERIFIER_nondet_uint() [L122] input_34 = __VERIFIER_nondet_uchar() [L123] input_39 = __VERIFIER_nondet_uint() [L124] input_41 = __VERIFIER_nondet_uchar() [L125] input_47 = __VERIFIER_nondet_uint() [L126] input_53 = __VERIFIER_nondet_uint() [L127] input_55 = __VERIFIER_nondet_uint() [L128] input_57 = __VERIFIER_nondet_uint() [L129] input_60 = __VERIFIER_nondet_uchar() [L130] input_66 = __VERIFIER_nondet_uchar() [L131] input_69 = __VERIFIER_nondet_uint() [L132] input_73 = __VERIFIER_nondet_uchar() [L135] SORT_16 var_21_arg_0 = state_18; [L136] SORT_16 var_21_arg_1 = var_20; [L137] SORT_3 var_21 = var_21_arg_0 != var_21_arg_1; [L138] SORT_3 var_25_arg_0 = state_23; [L139] SORT_3 var_25_arg_1 = var_22; [L140] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L141] SORT_3 var_26_arg_0 = var_21; [L142] SORT_3 var_26_arg_1 = var_25; [L143] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L144] SORT_3 var_29_arg_0 = var_26; [L145] SORT_3 var_29 = ~var_29_arg_0; [L146] SORT_3 var_30_arg_0 = var_22; [L147] SORT_3 var_30_arg_1 = var_29; [L148] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; [L149] var_30 = var_30 & mask_SORT_3 [L150] SORT_3 bad_31_arg_0 = var_30; [L151] CALL __VERIFIER_assert(!(bad_31_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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: 0.0s SsaConstructionTime, 0.1s 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 [2022-12-14 06:42:12,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh --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 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 --- 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-2329fc7 [2022-12-14 06:42:14,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:42:14,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:42:14,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:42:14,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:42:14,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:42:14,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:42:14,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:42:14,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:42:14,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:42:14,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:42:14,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:42:14,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:42:14,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:42:14,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:42:14,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:42:14,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:42:14,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:42:14,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:42:14,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:42:14,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:42:14,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:42:14,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:42:14,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:42:14,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:42:14,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:42:14,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:42:14,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:42:14,387 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:42:14,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:42:14,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:42:14,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:42:14,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:42:14,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:42:14,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:42:14,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:42:14,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:42:14,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:42:14,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:42:14,394 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:42:14,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:42:14,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 06:42:14,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:42:14,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:42:14,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:42:14,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:42:14,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:42:14,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:42:14,421 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:42:14,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:42:14,421 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:42:14,422 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:42:14,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:42:14,422 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:42:14,423 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:42:14,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:42:14,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:42:14,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:42:14,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:42:14,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:42:14,424 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:42:14,424 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:42:14,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:42:14,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:42:14,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:42:14,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:42:14,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:42:14,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:42:14,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:42:14,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:42:14,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:42:14,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:42:14,426 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:42:14,426 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:42:14,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:42:14,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:42:14,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:42:14,427 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_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 [2022-12-14 06:42:14,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:42:14,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:42:14,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:42:14,681 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:42:14,682 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:42:14,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-12-14 06:42:17,308 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:42:17,473 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:42:17,473 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-12-14 06:42:17,479 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data/8a571c4ed/882a92c2109f44d3840f453010cca131/FLAGdafe0362b [2022-12-14 06:42:17,496 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/data/8a571c4ed/882a92c2109f44d3840f453010cca131 [2022-12-14 06:42:17,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:42:17,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:42:17,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:42:17,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:42:17,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:42:17,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9776dcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17, skipping insertion in model container [2022-12-14 06:42:17,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:42:17,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:42:17,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-12-14 06:42:17,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:42:17,704 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:42:17,714 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-12-14 06:42:17,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:42:17,774 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:42:17,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17 WrapperNode [2022-12-14 06:42:17,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:42:17,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:42:17,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:42:17,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:42:17,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,832 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 361 [2022-12-14 06:42:17,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:42:17,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:42:17,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:42:17,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:42:17,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,868 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:42:17,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:42:17,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:42:17,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:42:17,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (1/1) ... [2022-12-14 06:42:17,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:42:17,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:42:17,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:42:17,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:42:17,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:42:17,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:42:18,044 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:42:18,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:42:18,317 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:42:18,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:42:18,322 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:42:18,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:42:18 BoogieIcfgContainer [2022-12-14 06:42:18,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:42:18,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:42:18,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:42:18,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:42:18,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:42:17" (1/3) ... [2022-12-14 06:42:18,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13eb367f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:42:18, skipping insertion in model container [2022-12-14 06:42:18,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:42:17" (2/3) ... [2022-12-14 06:42:18,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13eb367f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:42:18, skipping insertion in model container [2022-12-14 06:42:18,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:42:18" (3/3) ... [2022-12-14 06:42:18,331 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-12-14 06:42:18,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:42:18,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:42:18,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:42:18,383 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;@6d7f14df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:42:18,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:42:18,387 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) [2022-12-14 06:42:18,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:42:18,391 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:42:18,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:42:18,392 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:42:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:42:18,396 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 06:42:18,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:42:18,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200787008] [2022-12-14 06:42:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:18,407 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 [2022-12-14 06:42:18,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:42:18,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:42:18,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:42:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:18,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-14 06:42:18,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:18,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:18,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:42:18,657 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:42:18,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200787008] [2022-12-14 06:42:18,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200787008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:42:18,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:42:18,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:42:18,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451348025] [2022-12-14 06:42:18,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:42:18,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:42:18,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:42:18,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:42:18,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:42:18,695 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) [2022-12-14 06:42:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:42:18,752 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 06:42:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:42:18,754 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 [2022-12-14 06:42:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:42:18,761 INFO L225 Difference]: With dead ends: 20 [2022-12-14 06:42:18,761 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 06:42:18,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:42:18,767 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:42:18,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:42:18,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 06:42:18,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 06:42:18,796 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) [2022-12-14 06:42:18,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 06:42:18,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 06:42:18,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:42:18,797 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 06:42:18,798 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) [2022-12-14 06:42:18,798 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 06:42:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:42:18,798 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:42:18,798 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 06:42:18,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:42:18,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:42:19,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:42:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:42:19,004 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 06:42:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:42:19,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821354501] [2022-12-14 06:42:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:19,010 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 [2022-12-14 06:42:19,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:42:19,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:42:19,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:42:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:19,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 06:42:19,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:19,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:19,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:42:19,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:19,786 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:42:19,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821354501] [2022-12-14 06:42:19,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821354501] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:42:19,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [879099170] [2022-12-14 06:42:19,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:19,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:42:19,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:42:19,789 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:42:19,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 06:42:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:20,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 26 conjunts are in the unsatisfiable core [2022-12-14 06:42:20,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:20,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:20,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:42:20,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:20,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [879099170] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:42:20,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399863214] [2022-12-14 06:42:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:42:20,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:42:20,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:42:20,407 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:42:20,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:42:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:42:20,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 28 conjunts are in the unsatisfiable core [2022-12-14 06:42:20,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:20,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:20,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:42:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:20,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399863214] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:42:20,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:42:20,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2022-12-14 06:42:20,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537437852] [2022-12-14 06:42:20,866 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:42:20,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-14 06:42:20,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:42:20,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-14 06:42:20,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-12-14 06:42:20,868 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2022-12-14 06:42:21,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:42:21,045 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-14 06:42:21,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 06:42:21,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 [2022-12-14 06:42:21,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:42:21,045 INFO L225 Difference]: With dead ends: 19 [2022-12-14 06:42:21,045 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 06:42:21,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-12-14 06:42:21,047 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 06:42:21,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 27 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 06:42:21,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 06:42:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-14 06:42:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-12-14 06:42:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-14 06:42:21,054 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-12-14 06:42:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:42:21,055 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-14 06:42:21,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2022-12-14 06:42:21,055 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-14 06:42:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:42:21,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:42:21,056 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-14 06:42:21,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 06:42:21,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 06:42:21,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 06:42:21,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:42:21,659 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:42:21,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:42:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-12-14 06:42:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:42:21,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849016373] [2022-12-14 06:42:21,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:42:21,664 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 [2022-12-14 06:42:21,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:42:21,665 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:42:21,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:42:21,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:42:21,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:42:21,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 130 conjunts are in the unsatisfiable core [2022-12-14 06:42:21,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:24,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:42:33,669 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:33,670 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:42:33,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849016373] [2022-12-14 06:42:33,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849016373] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:42:33,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1585550587] [2022-12-14 06:42:33,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:42:33,670 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:42:33,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:42:33,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:42:33,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 06:42:34,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:42:34,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:42:34,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 193 conjunts are in the unsatisfiable core [2022-12-14 06:42:34,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:38,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:42:56,220 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:56,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1585550587] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:42:56,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147576154] [2022-12-14 06:42:56,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:42:56,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:42:56,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:42:56,221 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:42:56,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:42:56,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:42:56,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:42:56,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 122 conjunts are in the unsatisfiable core [2022-12-14 06:42:56,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:42:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:42:59,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:43:03,935 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 06:43:03,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147576154] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:43:03,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:43:03,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7, 7, 11, 9] total 35 [2022-12-14 06:43:03,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550976003] [2022-12-14 06:43:03,936 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:43:03,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-14 06:43:03,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:43:03,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-14 06:43:03,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=915, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 06:43:03,939 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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) [2022-12-14 06:43:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:43:04,816 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 06:43:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:43:04,817 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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 14 [2022-12-14 06:43:04,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:43:04,817 INFO L225 Difference]: With dead ends: 16 [2022-12-14 06:43:04,817 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:43:04,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=408, Invalid=1152, Unknown=0, NotChecked=0, Total=1560 [2022-12-14 06:43:04,819 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:43:04,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 20 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:43:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:43:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:43:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-12-14 06:43:04,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:43:04,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 06:43:04,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:43:04,820 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:43:04,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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) [2022-12-14 06:43:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:43:04,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:43:04,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:43:04,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 06:43:05,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2022-12-14 06:43:05,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 06:43:05,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:43:05,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:43:05,621 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:43:05,621 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:43:05,621 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 353) the Hoare annotation is: false [2022-12-14 06:43:05,622 INFO L895 garLoopResultBuilder]: At program point L102-2(lines 102 351) the Hoare annotation is: (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_22~0#1|)))) (.cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse0 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_16~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|)) (.cse4 (= |ULTIMATE.start_main_~var_20~0#1| (_ bv3 8))) (.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse6 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~var_36~0#1| |ULTIMATE.start_main_~state_51~0#1|) (= (_ bv2 8) |ULTIMATE.start_main_~var_77~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_45~0#1|) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse3))))) .cse3)) |ULTIMATE.start_main_~state_23~0#1|) (exists ((|v_ULTIMATE.start_main_#t~nondet18#1_7| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet18#1_7|) .cse3)) |ULTIMATE.start_main_~state_64~0#1|)) (= (_ bv1 8) |ULTIMATE.start_main_~var_80~0#1|) (exists ((|ULTIMATE.start_main_~var_130_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_130_arg_2~0#1|))) .cse3)) |ULTIMATE.start_main_~state_49~0#1|)) .cse4 (= |ULTIMATE.start_main_~var_17~0#1| |ULTIMATE.start_main_~state_18~0#1|) .cse5 (= |ULTIMATE.start_main_~var_36~0#1| (_ bv0 8)) (= (_ bv0 8) |ULTIMATE.start_main_~state_62~0#1|) .cse6) (and (or (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse2)))) .cse3))))) .cse3)) |ULTIMATE.start_main_~state_23~0#1|) .cse5) .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= |ULTIMATE.start_main_~var_17~0#1| (_ bv0 8)) .cse4 (exists ((|ULTIMATE.start_main_~var_116_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_116_arg_2~0#1|))) .cse3)) |ULTIMATE.start_main_~state_23~0#1|)) (exists ((|ULTIMATE.start_main_~var_107_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_107_arg_2~0#1|))))) |ULTIMATE.start_main_~state_18~0#1|)) .cse6))) [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point L102-3(lines 102 351) no Hoare annotation was computed. [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 06:43:05,623 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 06:43:05,626 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-14 06:43:05,627 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:43:05,633 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-12-14 06:43:05,634 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,634 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,634 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,638 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-12-14 06:43:05,638 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,638 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,638 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:43:05 BoogieIcfgContainer [2022-12-14 06:43:05,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:43:05,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:43:05,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:43:05,640 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:43:05,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:42:18" (3/4) ... [2022-12-14 06:43:05,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:43:05,651 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 06:43:05,651 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:43:05,651 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:43:05,668 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && var_36 == state_51) && 2bv8 == var_77) && 0bv8 == state_45) && ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23) && (\exists v_ULTIMATE.start_main_#t~nondet18#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet18#1_7), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_64)) && 1bv8 == var_80) && (\exists ULTIMATE.start_main_~var_130_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_130_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_49)) && var_20 == 3bv8) && var_17 == state_18) && 0bv8 == state_18) && var_36 == 0bv8) && 0bv8 == state_62) && 1bv8 == mask_SORT_3) || (((((((((~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0])[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23 || 0bv8 == state_18) && 3bv8 == mask_SORT_16) && 1bv8 == var_22) && cond == 1bv32) && var_17 == 0bv8) && var_20 == 3bv8) && (\exists ULTIMATE.start_main_~var_116_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_116_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23)) && (\exists ULTIMATE.start_main_~var_107_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_16), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_107_arg_2~0#1)[7:0]))[7:0] == state_18)) && 1bv8 == mask_SORT_3) [2022-12-14 06:43:05,689 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:43:05,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:43:05,690 INFO L158 Benchmark]: Toolchain (without parser) took 48190.11ms. Allocated memory was 79.7MB in the beginning and 174.1MB in the end (delta: 94.4MB). Free memory was 60.8MB in the beginning and 69.1MB in the end (delta: -8.3MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,690 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 79.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:43:05,690 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.39ms. Allocated memory is still 79.7MB. Free memory was 60.5MB in the beginning and 43.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,690 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.12ms. Allocated memory is still 79.7MB. Free memory was 43.2MB in the beginning and 40.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,691 INFO L158 Benchmark]: Boogie Preprocessor took 42.83ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 37.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,691 INFO L158 Benchmark]: RCFGBuilder took 447.63ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 37.5MB in the beginning and 74.1MB in the end (delta: -36.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,691 INFO L158 Benchmark]: TraceAbstraction took 47313.39ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 73.5MB in the beginning and 75.4MB in the end (delta: -1.8MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,691 INFO L158 Benchmark]: Witness Printer took 50.00ms. Allocated memory is still 174.1MB. Free memory was 75.4MB in the beginning and 69.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 06:43:05,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 79.7MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.39ms. Allocated memory is still 79.7MB. Free memory was 60.5MB in the beginning and 43.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.12ms. Allocated memory is still 79.7MB. Free memory was 43.2MB in the beginning and 40.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.83ms. Allocated memory is still 79.7MB. Free memory was 40.0MB in the beginning and 37.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.63ms. Allocated memory was 79.7MB in the beginning and 119.5MB in the end (delta: 39.8MB). Free memory was 37.5MB in the beginning and 74.1MB in the end (delta: -36.5MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * TraceAbstraction took 47313.39ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 73.5MB in the beginning and 75.4MB in the end (delta: -1.8MB). Peak memory consumption was 51.7MB. Max. memory is 16.1GB. * Witness Printer took 50.00ms. Allocated memory is still 174.1MB. Free memory was 75.4MB in the beginning and 69.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 142 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 312 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 42.8s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 59 QuantifiedInterpolants, 10402 SizeOfPredicates, 571 NumberOfNonLiveVariables, 3346 ConjunctsInSsa, 541 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 6/102 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 102]: Loop Invariant [2022-12-14 06:43:05,696 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-12-14 06:43:05,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-12-14 06:43:05,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,697 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-12-14 06:43:05,698 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] Derived loop invariant: ((((((((((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && var_36 == state_51) && 2bv8 == var_77) && 0bv8 == state_45) && ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23) && (\exists v_ULTIMATE.start_main_#t~nondet18#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet18#1_7), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_64)) && 1bv8 == var_80) && (\exists ULTIMATE.start_main_~var_130_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_130_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_49)) && var_20 == 3bv8) && var_17 == state_18) && 0bv8 == state_18) && var_36 == 0bv8) && 0bv8 == state_62) && 1bv8 == mask_SORT_3) || (((((((((~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0])[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23 || 0bv8 == state_18) && 3bv8 == mask_SORT_16) && 1bv8 == var_22) && cond == 1bv32) && var_17 == 0bv8) && var_20 == 3bv8) && (\exists ULTIMATE.start_main_~var_116_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_116_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23)) && (\exists ULTIMATE.start_main_~var_107_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_16), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_107_arg_2~0#1)[7:0]))[7:0] == state_18)) && 1bv8 == mask_SORT_3) RESULT: Ultimate proved your program to be correct! [2022-12-14 06:43:05,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c70187a-9d9a-437f-91cf-266a198d6768/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE