./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba --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 540d60d8f709b0e6fc2f95a449fbe554b202d2aed55e49e1eff4be52954e966a --- 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-b5237d8 [2022-11-22 02:10:57,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:10:57,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:10:57,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:10:57,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:10:57,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:10:57,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:10:57,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:10:57,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:10:57,389 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:10:57,390 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:10:57,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:10:57,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:10:57,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:10:57,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:10:57,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:10:57,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:10:57,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:10:57,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:10:57,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:10:57,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:10:57,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:10:57,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:10:57,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:10:57,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:10:57,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:10:57,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:10:57,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:10:57,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:10:57,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:10:57,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:10:57,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:10:57,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:10:57,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:10:57,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:10:57,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:10:57,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:10:57,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:10:57,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:10:57,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:10:57,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:10:57,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:10:57,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:10:57,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:10:57,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:10:57,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:10:57,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:10:57,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:10:57,486 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:10:57,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:10:57,486 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:10:57,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:10:57,487 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:10:57,487 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:10:57,487 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:10:57,487 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:10:57,488 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:10:57,488 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:10:57,488 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:10:57,488 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:10:57,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:10:57,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:10:57,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:10:57,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:10:57,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:10:57,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:10:57,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:10:57,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:10:57,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:10:57,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:10:57,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:10:57,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:10:57,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:10:57,494 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:10:57,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:10:57,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:10:57,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:10:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:10:57,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:10:57,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:10:57,496 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_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 540d60d8f709b0e6fc2f95a449fbe554b202d2aed55e49e1eff4be52954e966a [2022-11-22 02:10:57,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:10:57,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:10:57,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:10:57,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:10:57,819 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:10:57,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2022-11-22 02:11:00,951 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:11:01,179 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:11:01,180 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2022-11-22 02:11:01,187 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data/d7c599c24/876e49c09cd44ac5b0514fdd83fe53e5/FLAG6f3297bc9 [2022-11-22 02:11:01,205 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data/d7c599c24/876e49c09cd44ac5b0514fdd83fe53e5 [2022-11-22 02:11:01,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:11:01,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:11:01,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:11:01,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:11:01,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:11:01,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c935b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01, skipping insertion in model container [2022-11-22 02:11:01,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:11:01,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:11:01,412 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_8373443d-f11e-4439-b01d-bdba1074d715/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1107,1120] [2022-11-22 02:11:01,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:11:01,451 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:11:01,461 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_8373443d-f11e-4439-b01d-bdba1074d715/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1107,1120] [2022-11-22 02:11:01,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:11:01,492 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:11:01,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01 WrapperNode [2022-11-22 02:11:01,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:11:01,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:11:01,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:11:01,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:11:01,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,526 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-22 02:11:01,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:11:01,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:11:01,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:11:01,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:11:01,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,548 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:11:01,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:11:01,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:11:01,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:11:01,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (1/1) ... [2022-11-22 02:11:01,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:11:01,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:01,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:11:01,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:11:01,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:11:01,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:11:01,692 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:11:01,695 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:11:01,962 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:11:01,986 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:11:01,986 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:11:01,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:01 BoogieIcfgContainer [2022-11-22 02:11:01,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:11:01,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:11:01,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:11:01,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:11:01,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:11:01" (1/3) ... [2022-11-22 02:11:01,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ecaff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:11:01, skipping insertion in model container [2022-11-22 02:11:01,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:01" (2/3) ... [2022-11-22 02:11:01,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ecaff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:11:01, skipping insertion in model container [2022-11-22 02:11:01,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:01" (3/3) ... [2022-11-22 02:11:01,999 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bit-vector.c [2022-11-22 02:11:02,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:11:02,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:11:02,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:11:02,076 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;@1d0ddf0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:11:02,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:11:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:11:02,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:02,102 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:11:02,102 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:02,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:02,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-22 02:11:02,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:11:02,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790768037] [2022-11-22 02:11:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:02,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:11:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:11:02,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:11:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:11:02,560 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:11:02,562 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:11:02,564 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:11:02,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:11:02,570 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:11:02,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:11:02,599 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 02:11:02,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:11:02 BoogieIcfgContainer [2022-11-22 02:11:02,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:11:02,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:11:02,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:11:02,606 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:11:02,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:01" (3/4) ... [2022-11-22 02:11:02,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:11:02,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:11:02,611 INFO L158 Benchmark]: Toolchain (without parser) took 1401.91ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 73.6MB in the beginning and 158.3MB in the end (delta: -84.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:02,612 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:02,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.92ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 73.4MB in the beginning and 165.5MB in the end (delta: -92.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-11-22 02:11:02,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.44ms. Allocated memory is still 199.2MB. Free memory was 165.5MB in the beginning and 163.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:11:02,614 INFO L158 Benchmark]: Boogie Preprocessor took 24.04ms. Allocated memory is still 199.2MB. Free memory was 163.4MB in the beginning and 162.6MB in the end (delta: 757.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:02,614 INFO L158 Benchmark]: RCFGBuilder took 436.93ms. Allocated memory is still 199.2MB. Free memory was 162.6MB in the beginning and 147.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 02:11:02,615 INFO L158 Benchmark]: TraceAbstraction took 613.62ms. Allocated memory is still 199.2MB. Free memory was 147.3MB in the beginning and 158.3MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:02,615 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 199.2MB. Free memory is still 158.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:02,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 107.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.92ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 73.4MB in the beginning and 165.5MB in the end (delta: -92.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.44ms. Allocated memory is still 199.2MB. Free memory was 165.5MB in the beginning and 163.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.04ms. Allocated memory is still 199.2MB. Free memory was 163.4MB in the beginning and 162.6MB in the end (delta: 757.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 436.93ms. Allocated memory is still 199.2MB. Free memory was 162.6MB in the beginning and 147.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 613.62ms. Allocated memory is still 199.2MB. Free memory was 147.3MB in the beginning and 158.3MB in the end (delta: -10.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 199.2MB. Free memory is still 158.3MB. 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 63, overapproximation of bitwiseAnd at line 57. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 3); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (3 - 1); [L31] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L32] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L34] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 2); [L35] const SORT_21 msb_SORT_21 = (SORT_21)1 << (2 - 1); [L37] const SORT_3 var_4 = 2; [L38] const SORT_7 var_9 = 2; [L39] const SORT_1 var_13 = 1; [L40] const SORT_3 var_17 = 6; [L42] SORT_1 input_2; [L44] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L45] SORT_3 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L47] SORT_3 init_6_arg_1 = var_4; [L48] state_5 = init_6_arg_1 [L49] SORT_3 init_19_arg_1 = var_17; [L50] state_18 = init_19_arg_1 VAL [init_19_arg_1=6, init_6_arg_1=2, mask_SORT_1=1, mask_SORT_21=3, mask_SORT_3=7, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_21=2, msb_SORT_3=4, msb_SORT_7=2147483648, state_18=6, state_5=2, var_13=1, var_17=6, var_4=2, var_9=2] [L53] input_2 = __VERIFIER_nondet_uchar() [L56] SORT_3 var_8_arg_0 = state_5; [L57] var_8_arg_0 = var_8_arg_0 & mask_SORT_3 [L58] SORT_7 var_8 = var_8_arg_0; [L59] SORT_7 var_10_arg_0 = var_8; [L60] SORT_7 var_10_arg_1 = var_9; [L61] SORT_1 var_10 = var_10_arg_0 >= var_10_arg_1; [L62] SORT_1 var_14_arg_0 = var_10; [L63] SORT_1 var_14 = ~var_14_arg_0; [L64] SORT_1 var_15_arg_0 = var_13; [L65] SORT_1 var_15_arg_1 = var_14; [L66] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L67] var_15 = var_15 & mask_SORT_1 [L68] SORT_1 bad_16_arg_0 = var_15; [L69] CALL __VERIFIER_assert(!(bad_16_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: 0.5s, 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 [2022-11-22 02:11:02,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/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_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba --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 540d60d8f709b0e6fc2f95a449fbe554b202d2aed55e49e1eff4be52954e966a --- 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-b5237d8 [2022-11-22 02:11:05,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:11:05,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:11:05,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:11:05,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:11:05,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:11:05,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:11:05,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:11:05,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:11:05,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:11:05,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:11:05,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:11:05,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:11:05,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:11:05,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:11:05,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:11:05,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:11:05,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:11:05,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:11:05,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:11:05,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:11:05,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:11:05,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:11:05,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:11:05,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:11:05,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:11:05,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:11:05,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:11:05,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:11:05,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:11:05,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:11:05,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:11:05,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:11:05,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:11:05,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:11:05,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:11:05,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:11:05,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:11:05,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:11:05,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:11:05,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:11:05,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 02:11:05,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:11:05,253 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:11:05,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:11:05,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:11:05,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:11:05,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:11:05,255 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:11:05,255 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:11:05,255 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:11:05,255 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:11:05,256 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:11:05,256 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:11:05,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:11:05,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:11:05,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:11:05,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:11:05,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:11:05,257 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:11:05,258 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:11:05,258 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:11:05,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:11:05,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:11:05,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:11:05,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:11:05,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:11:05,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:11:05,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:11:05,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:11:05,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:11:05,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:11:05,260 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:11:05,260 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:11:05,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:11:05,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:11:05,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:11:05,261 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_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 540d60d8f709b0e6fc2f95a449fbe554b202d2aed55e49e1eff4be52954e966a [2022-11-22 02:11:05,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:11:05,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:11:05,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:11:05,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:11:05,701 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:11:05,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2022-11-22 02:11:08,762 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:11:08,994 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:11:08,994 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c [2022-11-22 02:11:09,005 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data/9c9fdf0f0/416c89cb23f64ca7a67adecc3739c6cf/FLAG43e1193ee [2022-11-22 02:11:09,018 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/data/9c9fdf0f0/416c89cb23f64ca7a67adecc3739c6cf [2022-11-22 02:11:09,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:11:09,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:11:09,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:11:09,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:11:09,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:11:09,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570b8005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09, skipping insertion in model container [2022-11-22 02:11:09,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:11:09,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:11:09,192 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_8373443d-f11e-4439-b01d-bdba1074d715/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1107,1120] [2022-11-22 02:11:09,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:11:09,239 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:11:09,251 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_8373443d-f11e-4439-b01d-bdba1074d715/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bit-vector.c[1107,1120] [2022-11-22 02:11:09,270 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:11:09,283 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:11:09,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09 WrapperNode [2022-11-22 02:11:09,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:11:09,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:11:09,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:11:09,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:11:09,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,340 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-22 02:11:09,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:11:09,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:11:09,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:11:09,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:11:09,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:11:09,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:11:09,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:11:09,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:11:09,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (1/1) ... [2022-11-22 02:11:09,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:11:09,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:09,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:11:09,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:11:09,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:11:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:11:09,587 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:11:09,589 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:11:09,806 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:11:09,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:11:09,813 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:11:09,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:09 BoogieIcfgContainer [2022-11-22 02:11:09,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:11:09,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:11:09,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:11:09,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:11:09,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:11:09" (1/3) ... [2022-11-22 02:11:09,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8a0a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:11:09, skipping insertion in model container [2022-11-22 02:11:09,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:11:09" (2/3) ... [2022-11-22 02:11:09,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8a0a99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:11:09, skipping insertion in model container [2022-11-22 02:11:09,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:09" (3/3) ... [2022-11-22 02:11:09,824 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bit-vector.c [2022-11-22 02:11:09,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:11:09,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:11:09,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:11:09,973 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;@40ebb0ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:11:09,974 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:11:09,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:09,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:11:09,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:09,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:11:09,988 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 02:11:10,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:11:10,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [458652535] [2022-11-22 02:11:10,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:10,015 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:11:10,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:11:10,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:11:10,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 02:11:10,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:10,151 WARN L261 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-22 02:11:10,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:10,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:10,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:11:10,437 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:11:10,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [458652535] [2022-11-22 02:11:10,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [458652535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:11:10,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:11:10,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:11:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534251777] [2022-11-22 02:11:10,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:11:10,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:11:10,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:11:10,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:11:10,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:11:10,495 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:10,549 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 02:11:10,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:11:10,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:11:10,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:10,559 INFO L225 Difference]: With dead ends: 20 [2022-11-22 02:11:10,560 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 02:11:10,562 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 [2022-11-22 02:11:10,566 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 [2022-11-22 02:11:10,567 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] [2022-11-22 02:11:10,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 02:11:10,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 02:11:10,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:10,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 02:11:10,601 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 02:11:10,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:10,602 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 02:11:10,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 02:11:10,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:11:10,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:10,603 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 02:11:10,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:10,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:11:10,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:10,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:10,816 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 02:11:10,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:11:10,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2136286600] [2022-11-22 02:11:10,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:10,817 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:11:10,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:11:10,820 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:11:10,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 02:11:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:10,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-22 02:11:10,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:11,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:11,635 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:11:11,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2136286600] [2022-11-22 02:11:11,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2136286600] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:11,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2121790468] [2022-11-22 02:11:11,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:11,642 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:11:11,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:11:11,647 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:11:11,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 02:11:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:11,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-22 02:11:11,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:11,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:12,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2121790468] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:12,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88863527] [2022-11-22 02:11:12,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:11:12,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:11:12,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:12,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:11:12,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 02:11:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:11:12,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-22 02:11:12,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:12,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:12,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88863527] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:12,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:11:12,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-22 02:11:12,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852416527] [2022-11-22 02:11:12,617 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:11:12,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 02:11:12,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:11:12,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 02:11:12,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:11:12,620 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:12,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:12,828 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-22 02:11:12,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:11:12,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 02:11:12,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:12,829 INFO L225 Difference]: With dead ends: 16 [2022-11-22 02:11:12,829 INFO L226 Difference]: Without dead ends: 14 [2022-11-22 02:11:12,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-22 02:11:12,831 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:12,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 22 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:11:12,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-22 02:11:12,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-22 02:11:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-22 02:11:12,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-22 02:11:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:12,837 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-22 02:11:12,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-22 02:11:12,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:11:12,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:11:12,838 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-22 02:11:12,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:13,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:13,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:13,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:11:13,441 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:11:13,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:11:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-22 02:11:13,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:11:13,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981710744] [2022-11-22 02:11:13,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:11:13,443 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:11:13,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:11:13,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 02:11:13,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 02:11:13,513 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:11:13,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:11:13,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 02:11:13,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:13,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:13,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:14,120 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:14,120 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:11:14,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981710744] [2022-11-22 02:11:14,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981710744] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:14,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1839562365] [2022-11-22 02:11:14,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:11:14,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:11:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:11:14,123 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:11:14,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 02:11:14,246 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:11:14,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:11:14,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 02:11:14,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:14,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:14,654 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:14,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1839562365] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:14,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93473938] [2022-11-22 02:11:14,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 02:11:14,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:11:14,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:11:14,657 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:11:14,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 02:11:14,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 02:11:14,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 02:11:14,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-22 02:11:14,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:11:14,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:14,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:11:15,249 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:11:15,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93473938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:11:15,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 02:11:15,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 12 [2022-11-22 02:11:15,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212014587] [2022-11-22 02:11:15,250 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 02:11:15,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 02:11:15,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:11:15,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 02:11:15,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:11:15,252 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:11:15,745 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-22 02:11:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:11:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 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 11 [2022-11-22 02:11:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:11:15,747 INFO L225 Difference]: With dead ends: 12 [2022-11-22 02:11:15,747 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 02:11:15,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 6 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-22 02:11:15,748 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:11:15,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:11:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 02:11:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 02:11:15,750 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) [2022-11-22 02:11:15,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 02:11:15,750 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-22 02:11:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:11:15,750 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 02:11:15,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:11:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 02:11:15,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 02:11:15,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:11:15,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:15,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:16,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/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)] Forceful destruction successful, exit code 0 [2022-11-22 02:11:16,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 02:11:16,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 02:11:18,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 02:11:18,597 INFO L895 garLoopResultBuilder]: At program point L93(lines 22 94) the Hoare annotation is: false [2022-11-22 02:11:18,597 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 02:11:18,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 02:11:18,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 02:11:18,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-22 02:11:18,597 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-22 02:11:18,598 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-22 02:11:18,598 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-22 02:11:18,598 INFO L895 garLoopResultBuilder]: At program point L51-2(lines 51 92) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse2 (= (_ bv2 32) |ULTIMATE.start_main_~var_9~0#1|)) (.cse3 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_21~0#1|))) (or (and (= (_ bv2 8) |ULTIMATE.start_main_~state_5~0#1|) (= (_ bv6 8) |ULTIMATE.start_main_~state_18~0#1|) .cse0 .cse1 .cse2 .cse3) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (exists ((|ULTIMATE.start_main_~var_28_arg_1~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvor (_ bv4 32) ((_ zero_extend 24) |ULTIMATE.start_main_~var_28_arg_1~0#1|))) |ULTIMATE.start_main_~state_18~0#1|)) .cse1 .cse2 .cse3 (forall ((|v_ULTIMATE.start_main_~var_24_arg_0~0#1_9| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_28_arg_1~0#1_10| (_ BitVec 8))) (bvuge ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_24_arg_0~0#1_9|) (_ bv2 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_28_arg_1~0#1_10|) (bvshl ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~state_5~0#1|))) (_ bv1 32))))) (_ bv1 32)))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_21~0#1|))))))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)))) |ULTIMATE.start_main_~var_9~0#1|))))) [2022-11-22 02:11:18,598 INFO L899 garLoopResultBuilder]: For program point L51-3(lines 51 92) no Hoare annotation was computed. [2022-11-22 02:11:18,601 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-22 02:11:18,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:11:18,617 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_1~0#1,QUANTIFIED] [2022-11-22 02:11:18,631 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_0~0#1_9,QUANTIFIED] [2022-11-22 02:11:18,632 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_10,QUANTIFIED] [2022-11-22 02:11:18,638 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_1~0#1,QUANTIFIED] [2022-11-22 02:11:18,639 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_0~0#1_9,QUANTIFIED] [2022-11-22 02:11:18,639 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_10,QUANTIFIED] [2022-11-22 02:11:18,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:11:18 BoogieIcfgContainer [2022-11-22 02:11:18,641 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:11:18,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:11:18,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:11:18,642 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:11:18,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:11:09" (3/4) ... [2022-11-22 02:11:18,645 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 02:11:18,671 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 02:11:18,671 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 02:11:18,671 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 02:11:18,716 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2bv8 == state_5 && 6bv8 == state_18) && 1bv8 == mask_SORT_1) && 7bv8 == mask_SORT_3) && 2bv32 == var_9) && 3bv8 == mask_SORT_21) || ((((((1bv8 == mask_SORT_1 && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_28_arg_1~0#1 : bv8 :: ~bvor32(4bv32, ~zero_extendFrom8To32(ULTIMATE.start_main_~var_28_arg_1~0#1))[7:0] == state_18)) && 7bv8 == mask_SORT_3) && 2bv32 == var_9) && 3bv8 == mask_SORT_21) && (forall v_ULTIMATE.start_main_~var_24_arg_0~0#1_9 : bv8, v_ULTIMATE.start_main_~var_28_arg_1~0#1_10 : bv8 :: ~bvuge32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvor32(~bvshl32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_24_arg_0~0#1_9), 2bv32), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvashr32(~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_28_arg_1~0#1_10), ~bvshl32(~zero_extendFrom8To32(~zero_extendFrom8To32(state_5)[7:0]), 1bv32))[7:0]), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_21))[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0]), var_9))) [2022-11-22 02:11:18,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:11:18,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:11:18,743 INFO L158 Benchmark]: Toolchain (without parser) took 9721.02ms. Allocated memory was 73.4MB in the beginning and 123.7MB in the end (delta: 50.3MB). Free memory was 47.1MB in the beginning and 50.9MB in the end (delta: -3.8MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2022-11-22 02:11:18,743 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 73.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:18,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.75ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 35.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:11:18,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.19ms. Allocated memory is still 73.4MB. Free memory was 35.6MB in the beginning and 53.9MB in the end (delta: -18.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 02:11:18,744 INFO L158 Benchmark]: Boogie Preprocessor took 47.24ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 52.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:11:18,745 INFO L158 Benchmark]: RCFGBuilder took 419.04ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 41.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:11:18,745 INFO L158 Benchmark]: TraceAbstraction took 8823.97ms. Allocated memory was 73.4MB in the beginning and 123.7MB in the end (delta: 50.3MB). Free memory was 40.8MB in the beginning and 54.0MB in the end (delta: -13.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-11-22 02:11:18,746 INFO L158 Benchmark]: Witness Printer took 100.96ms. Allocated memory is still 123.7MB. Free memory was 54.0MB in the beginning and 50.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:11:18,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 73.4MB. Free memory is still 51.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.75ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 35.8MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.19ms. Allocated memory is still 73.4MB. Free memory was 35.6MB in the beginning and 53.9MB in the end (delta: -18.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.24ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 52.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 419.04ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 41.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8823.97ms. Allocated memory was 73.4MB in the beginning and 123.7MB in the end (delta: 50.3MB). Free memory was 40.8MB in the beginning and 54.0MB in the end (delta: -13.2MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 100.96ms. Allocated memory is still 123.7MB. Free memory was 54.0MB in the beginning and 50.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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[ULTIMATE.start_main_~var_28_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_0~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_10,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_0~0#1_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_10,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: 8.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 11 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 76 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 18, 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, 5 NumberOfFragments, 80 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 86 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 48 QuantifiedInterpolants, 2503 SizeOfPredicates, 192 NumberOfNonLiveVariables, 542 ConjunctsInSsa, 199 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/54 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: 51]: Loop Invariant [2022-11-22 02:11:18,774 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_1~0#1,QUANTIFIED] [2022-11-22 02:11:18,774 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_0~0#1_9,QUANTIFIED] [2022-11-22 02:11:18,774 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_10,QUANTIFIED] [2022-11-22 02:11:18,775 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_28_arg_1~0#1,QUANTIFIED] [2022-11-22 02:11:18,775 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_24_arg_0~0#1_9,QUANTIFIED] [2022-11-22 02:11:18,776 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~var_28_arg_1~0#1_10,QUANTIFIED] Derived loop invariant: (((((2bv8 == state_5 && 6bv8 == state_18) && 1bv8 == mask_SORT_1) && 7bv8 == mask_SORT_3) && 2bv32 == var_9) && 3bv8 == mask_SORT_21) || ((((((1bv8 == mask_SORT_1 && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_28_arg_1~0#1 : bv8 :: ~bvor32(4bv32, ~zero_extendFrom8To32(ULTIMATE.start_main_~var_28_arg_1~0#1))[7:0] == state_18)) && 7bv8 == mask_SORT_3) && 2bv32 == var_9) && 3bv8 == mask_SORT_21) && (forall v_ULTIMATE.start_main_~var_24_arg_0~0#1_9 : bv8, v_ULTIMATE.start_main_~var_28_arg_1~0#1_10 : bv8 :: ~bvuge32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvor32(~bvshl32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_24_arg_0~0#1_9), 2bv32), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvashr32(~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(v_ULTIMATE.start_main_~var_28_arg_1~0#1_10), ~bvshl32(~zero_extendFrom8To32(~zero_extendFrom8To32(state_5)[7:0]), 1bv32))[7:0]), 1bv32)[7:0]), ~zero_extendFrom8To32(mask_SORT_21))[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0]), var_9))) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-22 02:11:18,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8373443d-f11e-4439-b01d-bdba1074d715/bin/utaipan-g80aRyZoba/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 Writing output log to file Ultimate.log Result: TRUE