./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/interleave_bits.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:31:59,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:31:59,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:31:59,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:31:59,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:31:59,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:31:59,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:31:59,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:31:59,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:31:59,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:31:59,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:31:59,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:31:59,481 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:31:59,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:31:59,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:31:59,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:31:59,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:31:59,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:31:59,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:31:59,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:31:59,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:31:59,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:31:59,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:31:59,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:31:59,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:31:59,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:31:59,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:31:59,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:31:59,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:31:59,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:31:59,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:31:59,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:31:59,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:31:59,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:31:59,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:31:59,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:31:59,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:31:59,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:31:59,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:31:59,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:31:59,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:31:59,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:31:59,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:31:59,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:31:59,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:31:59,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:31:59,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:31:59,593 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:31:59,593 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:31:59,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:31:59,593 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:31:59,594 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:31:59,594 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:31:59,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:31:59,594 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:31:59,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:31:59,595 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:31:59,595 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:31:59,595 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:31:59,595 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:31:59,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:31:59,596 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:31:59,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:31:59,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:31:59,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:31:59,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:31:59,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:31:59,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:31:59,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:31:59,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:31:59,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:31:59,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:31:59,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:31:59,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:31:59,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:31:59,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:31:59,605 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:31:59,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:31:59,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:31:59,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:31:59,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:31:59,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:31:59,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:31:59,608 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_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2022-11-19 07:31:59,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:31:59,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:31:59,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:31:59,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:31:59,989 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:31:59,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/bitvector/interleave_bits.i [2022-11-19 07:32:00,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/d1c7d7e44/4c157d7d9d9a40ab8cd0cd68aff979f8/FLAG5a92dd8a7 [2022-11-19 07:32:00,583 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:32:00,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/sv-benchmarks/c/bitvector/interleave_bits.i [2022-11-19 07:32:00,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/d1c7d7e44/4c157d7d9d9a40ab8cd0cd68aff979f8/FLAG5a92dd8a7 [2022-11-19 07:32:00,925 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/d1c7d7e44/4c157d7d9d9a40ab8cd0cd68aff979f8 [2022-11-19 07:32:00,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:32:00,931 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:32:00,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:32:00,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:32:00,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:32:00,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:00" (1/1) ... [2022-11-19 07:32:00,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722f95b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:00, skipping insertion in model container [2022-11-19 07:32:00,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:00" (1/1) ... [2022-11-19 07:32:00,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:32:00,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:32:01,184 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2022-11-19 07:32:01,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:32:01,223 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:32:01,234 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2022-11-19 07:32:01,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:32:01,276 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:32:01,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01 WrapperNode [2022-11-19 07:32:01,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:32:01,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:32:01,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:32:01,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:32:01,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,391 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2022-11-19 07:32:01,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:32:01,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:32:01,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:32:01,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:32:01,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,455 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:32:01,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:32:01,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:32:01,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:32:01,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (1/1) ... [2022-11-19 07:32:01,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:32:01,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:01,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:32:01,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:32:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:32:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:32:01,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:32:01,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:32:01,659 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:32:01,665 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:32:02,230 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:32:02,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:32:02,947 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:32:02,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:02 BoogieIcfgContainer [2022-11-19 07:32:02,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:32:02,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:32:02,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:32:02,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:32:02,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:32:00" (1/3) ... [2022-11-19 07:32:02,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a621a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:32:02, skipping insertion in model container [2022-11-19 07:32:02,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:01" (2/3) ... [2022-11-19 07:32:02,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a621a71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:32:02, skipping insertion in model container [2022-11-19 07:32:02,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:02" (3/3) ... [2022-11-19 07:32:02,964 INFO L112 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2022-11-19 07:32:02,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:32:02,986 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:32:03,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:32:03,068 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;@7f5ac727, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:32:03,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:32:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:32:03,081 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:03,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:32:03,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:03,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:03,090 INFO L85 PathProgramCache]: Analyzing trace with hash 4964460, now seen corresponding path program 1 times [2022-11-19 07:32:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:03,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708407845] [2022-11-19 07:32:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:03,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:03,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:03,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:03,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708407845] [2022-11-19 07:32:03,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708407845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:03,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:03,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:32:03,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469983695] [2022-11-19 07:32:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:03,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:32:03,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:32:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:03,798 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:03,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:03,850 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2022-11-19 07:32:03,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:32:03,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-19 07:32:03,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:03,863 INFO L225 Difference]: With dead ends: 13 [2022-11-19 07:32:03,864 INFO L226 Difference]: Without dead ends: 6 [2022-11-19 07:32:03,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:03,871 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:03,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:03,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2022-11-19 07:32:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2022-11-19 07:32:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2022-11-19 07:32:03,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2022-11-19 07:32:03,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:03,914 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2022-11-19 07:32:03,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2022-11-19 07:32:03,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:32:03,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:03,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:32:03,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:32:03,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:03,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:03,917 INFO L85 PathProgramCache]: Analyzing trace with hash 149182691, now seen corresponding path program 1 times [2022-11-19 07:32:03,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:03,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117321008] [2022-11-19 07:32:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:03,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:04,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:04,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117321008] [2022-11-19 07:32:04,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117321008] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:04,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054632002] [2022-11-19 07:32:04,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:04,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:04,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:04,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:04,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:32:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:04,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:32:04,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:04,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:04,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:04,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054632002] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:04,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1695129188] [2022-11-19 07:32:04,731 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-19 07:32:04,731 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:32:04,737 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:32:04,744 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:32:04,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:32:13,288 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:32:17,319 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '69#(and (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 16)) (= (ite (= (mod |ULTIMATE.start_main_~zz~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (or (and (or (and (or (< (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (and (<= |ULTIMATE.start_main_~xx~0#1| |ULTIMATE.start_main_~zz~0#1|) (<= (* 2 |ULTIMATE.start_main_~yy~0#1|) |ULTIMATE.start_main_~zz~0#1|)) (< |ULTIMATE.start_main_~xx~0#1| 0)) (or (< |ULTIMATE.start_main_~zz~0#1| 0) (and (<= 0 |ULTIMATE.start_main_~xx~0#1|) (<= 0 (* 2 |ULTIMATE.start_main_~yy~0#1|)))) (or (< (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (<= |ULTIMATE.start_main_~zz~0#1| (+ |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|))) (< |ULTIMATE.start_main_~xx~0#1| 0)) (not (= (* 2 |ULTIMATE.start_main_~yy~0#1|) 0))) (and (= (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (= |ULTIMATE.start_main_~xx~0#1| |ULTIMATE.start_main_~zz~0#1|))) (not (= |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|))) (not (= |ULTIMATE.start_main_~xx~0#1| 0))) (and (= |ULTIMATE.start_main_~zz~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|)) (or (= |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|)) (= |ULTIMATE.start_main_~xx~0#1| 0)))) (or (= |ULTIMATE.start_main_~yy~0#1| 0) (exists ((v_~bitwiseOr_1217 Int)) (not (= (ite (or (= (* 255 (mod |ULTIMATE.start_main_~y~0#1| 65536)) 0) (= (mod |ULTIMATE.start_main_~y~0#1| 65536) 0)) (* 256 (mod |ULTIMATE.start_main_~y~0#1| 65536)) (ite (= (* 256 (mod |ULTIMATE.start_main_~y~0#1| 65536)) 0) (mod |ULTIMATE.start_main_~y~0#1| 65536) v_~bitwiseOr_1217)) 0)))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (or (exists ((v_~bitwiseOr_1199 Int)) (not (= (ite (or (= (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 255) 0) (= (mod |ULTIMATE.start_main_~x~0#1| 65536) 0)) (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 256) (ite (= (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 256) 0) (mod |ULTIMATE.start_main_~x~0#1| 65536) v_~bitwiseOr_1199)) 0))) (= |ULTIMATE.start_main_~xx~0#1| 0)) (= |#NULL.base| 0))' at error location [2022-11-19 07:32:17,320 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:32:17,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:32:17,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-11-19 07:32:17,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77802461] [2022-11-19 07:32:17,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:32:17,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:32:17,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:17,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:32:17,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:32:17,325 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:17,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:17,395 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-11-19 07:32:17,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:32:17,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 07:32:17,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:17,399 INFO L225 Difference]: With dead ends: 12 [2022-11-19 07:32:17,399 INFO L226 Difference]: Without dead ends: 9 [2022-11-19 07:32:17,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-19 07:32:17,400 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:17,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-19 07:32:17,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-19 07:32:17,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:17,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 07:32:17,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 07:32:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:17,405 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 07:32:17,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:17,407 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 07:32:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:32:17,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:17,408 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2022-11-19 07:32:17,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:17,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:17,615 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:17,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:17,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1377196500, now seen corresponding path program 2 times [2022-11-19 07:32:17,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:17,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493340182] [2022-11-19 07:32:17,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:17,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:17,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:17,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493340182] [2022-11-19 07:32:17,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493340182] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:17,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950782391] [2022-11-19 07:32:17,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:32:17,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:17,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:17,970 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:18,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:32:18,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-19 07:32:18,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:18,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-19 07:32:18,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:18,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:18,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:18,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950782391] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:18,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1301976678] [2022-11-19 07:32:18,383 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-19 07:32:18,384 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:32:18,384 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:32:18,384 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:32:18,385 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:32:24,546 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:32:28,674 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '160#(and (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 16)) (= (ite (= (mod |ULTIMATE.start_main_~zz~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (or (and (or (and (or (< (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (and (<= |ULTIMATE.start_main_~xx~0#1| |ULTIMATE.start_main_~zz~0#1|) (<= (* 2 |ULTIMATE.start_main_~yy~0#1|) |ULTIMATE.start_main_~zz~0#1|)) (< |ULTIMATE.start_main_~xx~0#1| 0)) (or (< |ULTIMATE.start_main_~zz~0#1| 0) (and (<= 0 |ULTIMATE.start_main_~xx~0#1|) (<= 0 (* 2 |ULTIMATE.start_main_~yy~0#1|)))) (or (< (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (<= |ULTIMATE.start_main_~zz~0#1| (+ |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|))) (< |ULTIMATE.start_main_~xx~0#1| 0)) (not (= (* 2 |ULTIMATE.start_main_~yy~0#1|) 0))) (and (= (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (= |ULTIMATE.start_main_~xx~0#1| |ULTIMATE.start_main_~zz~0#1|))) (not (= |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|))) (not (= |ULTIMATE.start_main_~xx~0#1| 0))) (and (= |ULTIMATE.start_main_~zz~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|)) (or (= |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|)) (= |ULTIMATE.start_main_~xx~0#1| 0)))) (or (= |ULTIMATE.start_main_~yy~0#1| 0) (exists ((v_~bitwiseOr_1217 Int)) (not (= (ite (or (= (* 255 (mod |ULTIMATE.start_main_~y~0#1| 65536)) 0) (= (mod |ULTIMATE.start_main_~y~0#1| 65536) 0)) (* 256 (mod |ULTIMATE.start_main_~y~0#1| 65536)) (ite (= (* 256 (mod |ULTIMATE.start_main_~y~0#1| 65536)) 0) (mod |ULTIMATE.start_main_~y~0#1| 65536) v_~bitwiseOr_1217)) 0)))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (or (exists ((v_~bitwiseOr_1199 Int)) (not (= (ite (or (= (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 255) 0) (= (mod |ULTIMATE.start_main_~x~0#1| 65536) 0)) (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 256) (ite (= (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 256) 0) (mod |ULTIMATE.start_main_~x~0#1| 65536) v_~bitwiseOr_1199)) 0))) (= |ULTIMATE.start_main_~xx~0#1| 0)) (= |#NULL.base| 0))' at error location [2022-11-19 07:32:28,674 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:32:28,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:32:28,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-19 07:32:28,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593795677] [2022-11-19 07:32:28,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:32:28,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 07:32:28,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:28,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 07:32:28,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:32:28,678 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:29,032 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2022-11-19 07:32:29,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 07:32:29,033 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 07:32:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:29,034 INFO L225 Difference]: With dead ends: 18 [2022-11-19 07:32:29,034 INFO L226 Difference]: Without dead ends: 15 [2022-11-19 07:32:29,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2022-11-19 07:32:29,036 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:29,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:32:29,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-19 07:32:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-19 07:32:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-19 07:32:29,041 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-19 07:32:29,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:29,042 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-19 07:32:29,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-19 07:32:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-19 07:32:29,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:29,043 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2022-11-19 07:32:29,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:29,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:29,250 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:29,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:29,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1264264500, now seen corresponding path program 3 times [2022-11-19 07:32:29,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:29,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317158369] [2022-11-19 07:32:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:29,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:30,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:32:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317158369] [2022-11-19 07:32:30,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317158369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:32:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737183997] [2022-11-19 07:32:30,097 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:32:30,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:30,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:30,099 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:30,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:32:30,378 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:32:30,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:30,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-19 07:32:30,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:30,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:30,883 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:30,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737183997] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:30,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [269444133] [2022-11-19 07:32:30,885 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-19 07:32:30,886 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:32:30,886 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:32:30,887 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:32:30,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:32:36,389 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:32:42,089 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '329#(and (not (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 16)) (= (ite (= (mod |ULTIMATE.start_main_~zz~0#1| 4294967296) (mod |ULTIMATE.start_main_~z~0#1| 4294967296)) 1 0) |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (or (and (or (and (or (< (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (and (<= |ULTIMATE.start_main_~xx~0#1| |ULTIMATE.start_main_~zz~0#1|) (<= (* 2 |ULTIMATE.start_main_~yy~0#1|) |ULTIMATE.start_main_~zz~0#1|)) (< |ULTIMATE.start_main_~xx~0#1| 0)) (or (< |ULTIMATE.start_main_~zz~0#1| 0) (and (<= 0 |ULTIMATE.start_main_~xx~0#1|) (<= 0 (* 2 |ULTIMATE.start_main_~yy~0#1|)))) (or (< (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (<= |ULTIMATE.start_main_~zz~0#1| (+ |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|))) (< |ULTIMATE.start_main_~xx~0#1| 0)) (not (= (* 2 |ULTIMATE.start_main_~yy~0#1|) 0))) (and (= (* 2 |ULTIMATE.start_main_~yy~0#1|) 0) (= |ULTIMATE.start_main_~xx~0#1| |ULTIMATE.start_main_~zz~0#1|))) (not (= |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|))) (not (= |ULTIMATE.start_main_~xx~0#1| 0))) (and (= |ULTIMATE.start_main_~zz~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|)) (or (= |ULTIMATE.start_main_~xx~0#1| (* 2 |ULTIMATE.start_main_~yy~0#1|)) (= |ULTIMATE.start_main_~xx~0#1| 0)))) (or (= |ULTIMATE.start_main_~yy~0#1| 0) (exists ((v_~bitwiseOr_1217 Int)) (not (= (ite (or (= (* 255 (mod |ULTIMATE.start_main_~y~0#1| 65536)) 0) (= (mod |ULTIMATE.start_main_~y~0#1| 65536) 0)) (* 256 (mod |ULTIMATE.start_main_~y~0#1| 65536)) (ite (= (* 256 (mod |ULTIMATE.start_main_~y~0#1| 65536)) 0) (mod |ULTIMATE.start_main_~y~0#1| 65536) v_~bitwiseOr_1217)) 0)))) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| |ULTIMATE.start___VERIFIER_assert_#in~cond#1|) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (or (exists ((v_~bitwiseOr_1199 Int)) (not (= (ite (or (= (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 255) 0) (= (mod |ULTIMATE.start_main_~x~0#1| 65536) 0)) (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 256) (ite (= (* (mod |ULTIMATE.start_main_~x~0#1| 65536) 256) 0) (mod |ULTIMATE.start_main_~x~0#1| 65536) v_~bitwiseOr_1199)) 0))) (= |ULTIMATE.start_main_~xx~0#1| 0)) (= |#NULL.base| 0))' at error location [2022-11-19 07:32:42,089 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:32:42,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:32:42,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2022-11-19 07:32:42,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277070496] [2022-11-19 07:32:42,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:32:42,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-19 07:32:42,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:32:42,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-19 07:32:42,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2022-11-19 07:32:42,093 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:42,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:42,674 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-11-19 07:32:42,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 07:32:42,675 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-19 07:32:42,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:42,676 INFO L225 Difference]: With dead ends: 24 [2022-11-19 07:32:42,676 INFO L226 Difference]: Without dead ends: 21 [2022-11-19 07:32:42,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2022-11-19 07:32:42,678 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:42,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:32:42,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-19 07:32:42,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-19 07:32:42,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:42,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2022-11-19 07:32:42,685 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2022-11-19 07:32:42,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:42,686 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2022-11-19 07:32:42,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.12) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:42,686 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2022-11-19 07:32:42,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:32:42,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:42,688 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1] [2022-11-19 07:32:42,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:42,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:42,888 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:42,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:42,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1460541292, now seen corresponding path program 4 times [2022-11-19 07:32:42,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:32:42,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496602407] [2022-11-19 07:32:42,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:42,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:32:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:32:43,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:32:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:32:43,363 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:32:43,363 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:32:43,364 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:32:43,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:32:43,377 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1] [2022-11-19 07:32:43,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:32:43,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:32:43 BoogieIcfgContainer [2022-11-19 07:32:43,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:32:43,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:32:43,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:32:43,438 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:32:43,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:02" (3/4) ... [2022-11-19 07:32:43,443 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:32:43,444 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:32:43,447 INFO L158 Benchmark]: Toolchain (without parser) took 42513.83ms. Allocated memory was 136.3MB in the beginning and 660.6MB in the end (delta: 524.3MB). Free memory was 106.4MB in the beginning and 286.9MB in the end (delta: -180.5MB). Peak memory consumption was 342.7MB. Max. memory is 16.1GB. [2022-11-19 07:32:43,447 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:32:43,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.19ms. Allocated memory is still 136.3MB. Free memory was 106.4MB in the beginning and 112.1MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:32:43,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.50ms. Allocated memory is still 136.3MB. Free memory was 112.1MB in the beginning and 108.4MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:32:43,449 INFO L158 Benchmark]: Boogie Preprocessor took 73.32ms. Allocated memory is still 136.3MB. Free memory was 108.4MB in the beginning and 106.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:32:43,450 INFO L158 Benchmark]: RCFGBuilder took 1480.81ms. Allocated memory is still 136.3MB. Free memory was 106.3MB in the beginning and 98.9MB in the end (delta: 7.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2022-11-19 07:32:43,451 INFO L158 Benchmark]: TraceAbstraction took 40481.57ms. Allocated memory was 136.3MB in the beginning and 660.6MB in the end (delta: 524.3MB). Free memory was 98.5MB in the beginning and 286.9MB in the end (delta: -188.4MB). Peak memory consumption was 335.9MB. Max. memory is 16.1GB. [2022-11-19 07:32:43,451 INFO L158 Benchmark]: Witness Printer took 6.34ms. Allocated memory is still 660.6MB. Free memory is still 286.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:32:43,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 54.1MB in the beginning and 54.0MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.19ms. Allocated memory is still 136.3MB. Free memory was 106.4MB in the beginning and 112.1MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.50ms. Allocated memory is still 136.3MB. Free memory was 112.1MB in the beginning and 108.4MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.32ms. Allocated memory is still 136.3MB. Free memory was 108.4MB in the beginning and 106.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1480.81ms. Allocated memory is still 136.3MB. Free memory was 106.3MB in the beginning and 98.9MB in the end (delta: 7.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. * TraceAbstraction took 40481.57ms. Allocated memory was 136.3MB in the beginning and 660.6MB in the end (delta: 524.3MB). Free memory was 98.5MB in the beginning and 286.9MB in the end (delta: -188.4MB). Peak memory consumption was 335.9MB. Max. memory is 16.1GB. * Witness Printer took 6.34ms. Allocated memory is still 660.6MB. Free memory is still 286.9MB. 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: 25]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftLeft at line 50, overapproximation of bitwiseOr at line 55, overapproximation of bitwiseAnd at line 55. Possible FailurePath: [L42] unsigned short x = __VERIFIER_nondet_ushort(); [L43] unsigned short y = __VERIFIER_nondet_ushort(); [L44] unsigned int xx; [L45] unsigned int yy; [L46] unsigned int zz; [L47] unsigned int z = 0; [L48] unsigned int i = 0; VAL [i=0, z=0] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=1, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=2, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=3, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=4, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=5, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=6, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=7, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=8, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=9, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=10, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=11, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=12, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=13, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=14, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=15, z=4] [L49] COND TRUE i < sizeof(x) * 8 [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=16, z=4] [L49] COND FALSE !(i < sizeof(x) * 8) [L53] xx = x [L54] yy = y [L55] xx = (xx | (xx << 8u)) & 16711935U [L56] xx = (xx | (xx << 4u)) & 252645135U [L57] xx = (xx | (xx << 2u)) & 858993459U [L58] xx = (xx | (xx << 1u)) & 1431655765U [L59] yy = (yy | (yy << 8u)) & 16711935U [L60] yy = (yy | (yy << 4u)) & 252645135U [L61] yy = (yy | (yy << 2u)) & 858993459U [L62] yy = (yy | (yy << 1u)) & 1431655765U [L64] zz = xx | (yy << 1U) [L66] CALL __VERIFIER_assert(z == zz) [L24] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L25] 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: 40.3s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 190 IncrementalHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 9 mSDtfsCounter, 190 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=4, InterpolantAutomatonStates: 39, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 382 SizeOfPredicates, 3 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 0/198 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 07:32:43,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:32:46,102 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:32:46,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:32:46,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:32:46,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:32:46,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:32:46,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:32:46,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:32:46,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:32:46,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:32:46,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:32:46,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:32:46,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:32:46,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:32:46,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:32:46,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:32:46,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:32:46,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:32:46,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:32:46,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:32:46,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:32:46,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:32:46,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:32:46,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:32:46,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:32:46,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:32:46,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:32:46,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:32:46,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:32:46,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:32:46,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:32:46,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:32:46,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:32:46,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:32:46,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:32:46,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:32:46,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:32:46,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:32:46,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:32:46,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:32:46,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:32:46,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:32:46,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:32:46,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:32:46,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:32:46,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:32:46,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:32:46,298 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:32:46,298 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:32:46,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:32:46,299 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:32:46,299 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:32:46,300 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:32:46,301 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:32:46,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:32:46,303 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:32:46,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:32:46,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:32:46,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:32:46,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:32:46,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:32:46,305 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:32:46,305 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:32:46,305 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:32:46,305 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:32:46,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:32:46,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:32:46,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:32:46,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:32:46,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:32:46,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:32:46,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:32:46,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:32:46,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:32:46,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:32:46,309 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:32:46,309 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:32:46,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:32:46,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:32:46,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:32:46,311 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_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2022-11-19 07:32:46,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:32:46,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:32:46,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:32:46,812 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:32:46,813 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:32:46,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/bitvector/interleave_bits.i [2022-11-19 07:32:46,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/9dbcf5dd6/172b2ccc3c774315a2c714492b2d6b88/FLAGd084967da [2022-11-19 07:32:47,563 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:32:47,564 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/sv-benchmarks/c/bitvector/interleave_bits.i [2022-11-19 07:32:47,573 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/9dbcf5dd6/172b2ccc3c774315a2c714492b2d6b88/FLAGd084967da [2022-11-19 07:32:47,842 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/data/9dbcf5dd6/172b2ccc3c774315a2c714492b2d6b88 [2022-11-19 07:32:47,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:32:47,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:32:47,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:32:47,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:32:47,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:32:47,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:47" (1/1) ... [2022-11-19 07:32:47,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e98c39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:47, skipping insertion in model container [2022-11-19 07:32:47,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:32:47" (1/1) ... [2022-11-19 07:32:47,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:32:47,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:32:48,119 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2022-11-19 07:32:48,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:32:48,215 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:32:48,235 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2022-11-19 07:32:48,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:32:48,283 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:32:48,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48 WrapperNode [2022-11-19 07:32:48,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:32:48,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:32:48,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:32:48,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:32:48,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,346 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42 [2022-11-19 07:32:48,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:32:48,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:32:48,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:32:48,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:32:48,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:32:48,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:32:48,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:32:48,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:32:48,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (1/1) ... [2022-11-19 07:32:48,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:32:48,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:48,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:32:48,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:32:48,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:32:48,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:32:48,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:32:48,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:32:48,626 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:32:48,629 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:32:48,843 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:32:48,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:32:48,865 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:32:48,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:48 BoogieIcfgContainer [2022-11-19 07:32:48,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:32:48,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:32:48,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:32:48,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:32:48,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:32:47" (1/3) ... [2022-11-19 07:32:48,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bc84d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:32:48, skipping insertion in model container [2022-11-19 07:32:48,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:32:48" (2/3) ... [2022-11-19 07:32:48,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78bc84d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:32:48, skipping insertion in model container [2022-11-19 07:32:48,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:48" (3/3) ... [2022-11-19 07:32:48,886 INFO L112 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2022-11-19 07:32:48,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:32:48,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:32:49,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:32:49,056 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;@3714e446, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:32:49,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:32:49,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:49,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:32:49,074 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:49,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:32:49,076 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:49,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:49,096 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2022-11-19 07:32:49,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:32:49,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325918233] [2022-11-19 07:32:49,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:49,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:32:49,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:32:49,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:32:49,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:32:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:49,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:32:49,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:49,273 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:32:49,274 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:32:49,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325918233] [2022-11-19 07:32:49,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325918233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:32:49,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:32:49,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:32:49,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313825890] [2022-11-19 07:32:49,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:32:49,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:32:49,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:32:49,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:32:49,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:49,325 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 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:49,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:49,358 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2022-11-19 07:32:49,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:32:49,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-19 07:32:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:49,371 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:32:49,372 INFO L226 Difference]: Without dead ends: 8 [2022-11-19 07:32:49,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:32:49,380 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:49,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:49,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-11-19 07:32:49,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-11-19 07:32:49,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2022-11-19 07:32:49,422 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2022-11-19 07:32:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:49,423 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2022-11-19 07:32:49,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:49,424 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2022-11-19 07:32:49,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:32:49,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:49,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:49,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:49,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:32:49,639 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2022-11-19 07:32:49,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:32:49,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669686687] [2022-11-19 07:32:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:49,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:32:49,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:32:49,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:32:49,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 07:32:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:49,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:32:49,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:49,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:49,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:49,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:49,808 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:32:49,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669686687] [2022-11-19 07:32:49,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669686687] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:49,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [278088030] [2022-11-19 07:32:49,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:49,810 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:32:49,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:32:49,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:32:49,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 07:32:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:49,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:32:49,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:49,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:49,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:49,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [278088030] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:49,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375605838] [2022-11-19 07:32:49,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:32:49,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:49,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:49,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:49,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:32:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:32:50,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:32:50,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:50,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375605838] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:50,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:32:50,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 7 [2022-11-19 07:32:50,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074824405] [2022-11-19 07:32:50,102 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:32:50,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:32:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:32:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:32:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:32:50,105 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:50,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:50,164 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-19 07:32:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 07:32:50,165 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 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) Word has length 7 [2022-11-19 07:32:50,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:50,166 INFO L225 Difference]: With dead ends: 15 [2022-11-19 07:32:50,167 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 07:32:50,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:32:50,169 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:50,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 20 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:32:50,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 07:32:50,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-19 07:32:50,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:50,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2022-11-19 07:32:50,176 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2022-11-19 07:32:50,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:50,177 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2022-11-19 07:32:50,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2022-11-19 07:32:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:32:50,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:50,179 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:50,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:50,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:50,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 07:32:50,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:50,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1922847381, now seen corresponding path program 2 times [2022-11-19 07:32:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:32:50,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32737729] [2022-11-19 07:32:50,795 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:32:50,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:32:50,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:32:50,797 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:32:50,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 07:32:50,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:32:50,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:50,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:32:50,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:50,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:51,079 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,080 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:32:51,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32737729] [2022-11-19 07:32:51,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32737729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:51,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1195021871] [2022-11-19 07:32:51,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:32:51,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:32:51,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:32:51,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:32:51,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 07:32:51,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:32:51,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:51,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 07:32:51,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1195021871] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:51,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526842064] [2022-11-19 07:32:51,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 07:32:51,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:51,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:51,334 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:51,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 07:32:51,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 07:32:51,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:51,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:32:51,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:51,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526842064] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:51,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:32:51,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 16 [2022-11-19 07:32:51,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341959245] [2022-11-19 07:32:51,701 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:32:51,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 07:32:51,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:32:51,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 07:32:51,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:32:51,704 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:52,088 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-11-19 07:32:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 07:32:52,088 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 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 10 [2022-11-19 07:32:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:52,089 INFO L225 Difference]: With dead ends: 21 [2022-11-19 07:32:52,089 INFO L226 Difference]: Without dead ends: 17 [2022-11-19 07:32:52,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=265, Unknown=0, NotChecked=0, Total=420 [2022-11-19 07:32:52,091 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:52,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:32:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-19 07:32:52,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-19 07:32:52,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:52,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-19 07:32:52,103 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2022-11-19 07:32:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:52,104 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-19 07:32:52,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:52,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-19 07:32:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:32:52,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:52,105 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:52,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:52,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:52,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:52,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:52,720 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:52,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:52,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1628318539, now seen corresponding path program 3 times [2022-11-19 07:32:52,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:32:52,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714401921] [2022-11-19 07:32:52,721 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:32:52,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:32:52,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:32:52,723 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:32:52,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 07:32:52,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-19 07:32:52,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:52,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:32:52,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:53,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:53,707 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:53,708 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:32:53,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714401921] [2022-11-19 07:32:53,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714401921] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:53,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [184340717] [2022-11-19 07:32:53,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:32:53,709 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:32:53,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:32:53,714 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:32:53,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 07:32:53,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-19 07:32:53,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:53,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:32:53,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:53,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:54,054 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:54,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [184340717] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:54,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339913301] [2022-11-19 07:32:54,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 07:32:54,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:54,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:32:54,056 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:32:54,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-19 07:32:54,160 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-11-19 07:32:54,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:54,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:32:54,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:54,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:32:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:54,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339913301] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:32:54,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:32:54,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13, 13, 13, 13] total 24 [2022-11-19 07:32:54,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320162620] [2022-11-19 07:32:54,315 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:32:54,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-19 07:32:54,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:32:54,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-19 07:32:54,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2022-11-19 07:32:54,319 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:32:56,008 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2022-11-19 07:32:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 07:32:56,009 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-19 07:32:56,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:32:56,010 INFO L225 Difference]: With dead ends: 33 [2022-11-19 07:32:56,010 INFO L226 Difference]: Without dead ends: 29 [2022-11-19 07:32:56,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=370, Invalid=820, Unknown=0, NotChecked=0, Total=1190 [2022-11-19 07:32:56,012 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 35 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:32:56,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 32 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:32:56,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-19 07:32:56,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-19 07:32:56,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:56,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-11-19 07:32:56,030 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 16 [2022-11-19 07:32:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:32:56,032 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-11-19 07:32:56,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:32:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-11-19 07:32:56,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-19 07:32:56,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:32:56,037 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1, 1] [2022-11-19 07:32:56,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:56,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-11-19 07:32:56,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-19 07:32:56,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:32:56,661 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:32:56,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:32:56,662 INFO L85 PathProgramCache]: Analyzing trace with hash 26919211, now seen corresponding path program 4 times [2022-11-19 07:32:56,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:32:56,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330005398] [2022-11-19 07:32:56,663 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:32:56,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:32:56,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:32:56,664 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:32:56,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-19 07:32:56,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:32:56,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:32:56,810 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-19 07:32:56,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:32:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:32:59,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:06,443 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~x~0#1| (_ BitVec 16)) (|ULTIMATE.start_main_~y~0#1| (_ BitVec 16))) (let ((.cse0 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|)) (.cse1 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|))) (= (bvor (bvor (bvor (bvshl (bvand .cse0 (_ bv16384 32)) (_ bv15 32)) (bvshl (bvand .cse1 (_ bv16384 32)) (_ bv14 32))) (bvor (bvor (bvor (bvor (bvshl (bvand .cse1 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse0 (_ bv2048 32)) (_ bv12 32))) (bvor (bvor (bvshl (bvand .cse0 (_ bv1024 32)) (_ bv11 32)) (bvshl (bvand .cse1 (_ bv1024 32)) (_ bv10 32))) (bvor (bvor (bvor (bvor (bvshl (bvand .cse0 (_ bv128 32)) (_ bv8 32)) (bvshl (bvand .cse1 (_ bv128 32)) (_ bv7 32))) (bvor (bvor (bvor (bvor (bvshl (bvand (_ bv16 32) .cse1) (_ bv4 32)) (bvshl (bvand .cse0 (_ bv16 32)) (_ bv5 32))) (bvor (bvor (bvshl (bvand .cse0 (_ bv8 32)) (_ bv4 32)) (bvshl (bvand .cse1 (_ bv8 32)) (_ bv3 32))) (bvor (bvor (bvshl (bvand .cse0 (_ bv4 32)) (_ bv3 32)) (bvshl (bvand .cse1 (_ bv4 32)) (_ bv2 32))) (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse0 (_ bv1 32)) (_ bv1 32)) (bvshl (bvand .cse1 (_ bv1 32)) (_ bv0 32)))) (bvor (bvshl (bvand .cse1 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse0 (_ bv2 32)) (_ bv2 32))))))) (bvor (bvshl (bvand .cse0 (_ bv32 32)) (_ bv6 32)) (bvshl (bvand .cse1 (_ bv32 32)) (_ bv5 32)))) (bvor (bvshl (bvand .cse0 (_ bv64 32)) (_ bv7 32)) (bvshl (bvand .cse1 (_ bv64 32)) (_ bv6 32))))) (bvor (bvshl (bvand (_ bv256 32) .cse1) (_ bv8 32)) (bvshl (bvand .cse0 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse1 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse0 (_ bv512 32)) (_ bv10 32)))))) (bvor (bvshl (bvand .cse1 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse0 (_ bv4096 32)) (_ bv13 32)))) (bvor (bvshl (bvand .cse0 (_ bv8192 32)) (_ bv14 32)) (bvshl (bvand .cse1 (_ bv8192 32)) (_ bv13 32))))) (bvor (bvshl (bvand .cse0 (_ bv32768 32)) (_ bv16 32)) (bvshl (bvand .cse1 (_ bv32768 32)) (_ bv15 32)))) (let ((.cse31 (bvadd (_ bv15 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse29 (bvadd (_ bv14 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse4 (bvadd (_ bv13 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse3 (bvadd (_ bv12 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse2 (bvshl (_ bv1 32) .cse3))) (bvor (bvshl (bvand .cse1 .cse2) .cse3) (bvshl (bvand .cse0 .cse2) .cse4))) (let ((.cse6 (bvadd (_ bv11 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse5 (bvshl (_ bv1 32) .cse6))) (bvor (bvshl (bvand .cse0 .cse5) .cse3) (bvshl (bvand .cse1 .cse5) .cse6))) (let ((.cse8 (bvadd (_ bv10 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse7 (bvshl (_ bv1 32) .cse8))) (bvor (bvshl (bvand .cse1 .cse7) .cse8) (bvshl (bvand .cse0 .cse7) .cse6))) (let ((.cse26 (bvadd (_ bv9 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse10 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse11 (bvadd (_ bv7 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse9 (bvshl (_ bv1 32) .cse11))) (bvor (bvshl (bvand .cse0 .cse9) .cse10) (bvshl (bvand .cse1 .cse9) .cse11))) (let ((.cse13 (bvadd (_ bv6 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse14 (bvadd (_ bv5 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse12 (bvshl (_ bv1 32) .cse14))) (bvor (bvshl (bvand .cse0 .cse12) .cse13) (bvshl (bvand .cse1 .cse12) .cse14))) (let ((.cse16 (bvadd (_ bv4 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse15 (bvshl (_ bv1 32) .cse16))) (bvor (bvshl (bvand .cse0 .cse15) .cse14) (bvshl (bvand .cse1 .cse15) .cse16))) (let ((.cse18 (bvadd (_ bv3 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse17 (bvshl (_ bv1 32) .cse18))) (bvor (bvshl (bvand .cse0 .cse17) .cse16) (bvshl (bvand .cse1 .cse17) .cse18))) (let ((.cse22 (bvadd (_ bv2 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse20 (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (bvor |c_ULTIMATE.start_main_~z~0#1| (let ((.cse19 (bvshl (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|))) (bvor (bvshl (bvand .cse0 .cse19) .cse20) (bvshl (bvand .cse1 .cse19) |c_ULTIMATE.start_main_~i~0#1|)))) (let ((.cse21 (bvshl (_ bv1 32) .cse20))) (bvor (bvshl (bvand .cse1 .cse21) .cse20) (bvshl (bvand .cse0 .cse21) .cse22))))) (let ((.cse23 (bvshl (_ bv1 32) .cse22))) (bvor (bvshl (bvand .cse1 .cse23) .cse22) (bvshl (bvand .cse0 .cse23) .cse18))))))))))) (let ((.cse24 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse0 .cse24) .cse11) (bvshl (bvand .cse1 .cse24) .cse13))))))) (let ((.cse25 (bvshl (_ bv1 32) .cse10))) (bvor (bvshl (bvand .cse1 .cse25) .cse10) (bvshl (bvand .cse0 .cse25) .cse26))))) (let ((.cse27 (bvshl (_ bv1 32) .cse26))) (bvor (bvshl (bvand .cse1 .cse27) .cse26) (bvshl (bvand .cse0 .cse27) .cse8))))))))))) (let ((.cse28 (bvshl (_ bv1 32) .cse4))) (bvor (bvshl (bvand .cse28 .cse1) .cse4) (bvshl (bvand .cse0 .cse28) .cse29))))) (let ((.cse30 (bvshl (_ bv1 32) .cse29))) (bvor (bvshl (bvand .cse1 .cse30) .cse29) (bvshl (bvand .cse0 .cse30) .cse31))))) (let ((.cse32 (bvshl (_ bv1 32) .cse31))) (bvor (bvshl (bvand .cse32 .cse0) (bvadd (_ bv16 32) |c_ULTIMATE.start_main_~i~0#1|)) (bvshl (bvand .cse32 .cse1) .cse31)))))))) is different from false [2022-11-19 07:34:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2022-11-19 07:34:06,534 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:34:06,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330005398] [2022-11-19 07:34:06,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330005398] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:06,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [178976326] [2022-11-19 07:34:06,535 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:34:06,535 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 07:34:06,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 07:34:06,557 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 07:34:06,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-19 07:34:06,912 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:34:06,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:34:06,915 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-19 07:34:06,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:08,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:34:09,635 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2022-11-19 07:34:09,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [178976326] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:34:09,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202330811] [2022-11-19 07:34:09,636 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-19 07:34:09,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:34:09,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:34:09,638 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:34:09,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-19 07:34:09,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-19 07:34:09,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 07:34:09,765 WARN L261 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 55 conjunts are in the unsatisfiable core [2022-11-19 07:34:09,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:34:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:34:11,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:35:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:35:40,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202330811] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:35:40,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 07:35:40,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20, 20, 20, 20] total 53 [2022-11-19 07:35:40,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320003488] [2022-11-19 07:35:40,515 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 07:35:40,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-19 07:35:40,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:35:40,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-19 07:35:40,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=720, Invalid=1935, Unknown=1, NotChecked=100, Total=2756 [2022-11-19 07:35:40,518 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 53 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:35:44,884 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-11-19 07:35:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 07:35:44,885 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 53 states have internal predecessors, (58), 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 22 [2022-11-19 07:35:44,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:35:44,886 INFO L225 Difference]: With dead ends: 29 [2022-11-19 07:35:44,886 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:35:44,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 57 SyntacticMatches, 19 SemanticMatches, 52 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 157.1s TimeCoverageRelationStatistics Valid=755, Invalid=2004, Unknown=1, NotChecked=102, Total=2862 [2022-11-19 07:35:44,893 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 38 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:35:44,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 25 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 322 Invalid, 0 Unknown, 38 Unchecked, 3.9s Time] [2022-11-19 07:35:44,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:35:44,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:35:44,901 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) [2022-11-19 07:35:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:35:44,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-19 07:35:44,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:35:44,902 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:35:44,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 53 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:35:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:35:44,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:35:44,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:35:44,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-19 07:35:45,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-19 07:35:45,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-19 07:35:45,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:35:45,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:35:47,633 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:35:47,633 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-11-19 07:35:47,633 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 67) no Hoare annotation was computed. [2022-11-19 07:35:47,633 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 07:35:47,633 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:35:47,633 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 07:35:47,634 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2022-11-19 07:35:47,634 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2022-11-19 07:35:47,634 INFO L902 garLoopResultBuilder]: At program point L24-2(lines 23 28) the Hoare annotation is: true [2022-11-19 07:35:47,635 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 52) the Hoare annotation is: (let ((.cse9 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|)) (.cse6 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|))) (let ((.cse2 (bvor (bvor (bvshl (bvand .cse6 (_ bv4 32)) (_ bv3 32)) (bvshl (bvand .cse9 (_ bv4 32)) (_ bv2 32))) (bvor (bvor (_ bv0 32) (bvor (bvshl (bvand .cse6 (_ bv1 32)) (_ bv1 32)) (bvshl (bvand .cse9 (_ bv1 32)) (_ bv0 32)))) (bvor (bvshl (bvand .cse9 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse6 (_ bv2 32)) (_ bv2 32))))))) (let ((.cse1 (bvor (bvor (bvshl (bvand .cse6 (_ bv8 32)) (_ bv4 32)) (bvshl (bvand .cse9 (_ bv8 32)) (_ bv3 32))) .cse2))) (let ((.cse13 (bvadd (_ bv4294967295 32) |ULTIMATE.start_main_~i~0#1|)) (.cse11 (bvor (bvor (bvor (bvor (bvshl (bvand (_ bv16 32) .cse9) (_ bv4 32)) (bvshl (bvand .cse6 (_ bv16 32)) (_ bv5 32))) .cse1) (bvor (bvshl (bvand .cse6 (_ bv32 32)) (_ bv6 32)) (bvshl (bvand .cse9 (_ bv32 32)) (_ bv5 32)))) (bvor (bvshl (bvand .cse6 (_ bv64 32)) (_ bv7 32)) (bvshl (bvand .cse9 (_ bv64 32)) (_ bv6 32))))) (.cse15 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv4294967294 32))) (.cse8 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv4294967293 32)))) (let ((.cse5 (let ((.cse16 (bvshl (_ bv1 32) .cse8))) (bvor (bvshl (bvand .cse9 .cse16) .cse8) (bvshl (bvand .cse6 .cse16) .cse15)))) (.cse4 (bvor (bvor (bvshl (bvand .cse6 (_ bv1024 32)) (_ bv11 32)) (bvshl (bvand .cse9 (_ bv1024 32)) (_ bv10 32))) (bvor (bvor (bvor (bvor (bvshl (bvand .cse6 (_ bv128 32)) (_ bv8 32)) (bvshl (bvand .cse9 (_ bv128 32)) (_ bv7 32))) .cse11) (bvor (bvshl (bvand (_ bv256 32) .cse9) (_ bv8 32)) (bvshl (bvand .cse6 (_ bv256 32)) (_ bv9 32)))) (bvor (bvshl (bvand .cse9 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse6 (_ bv512 32)) (_ bv10 32)))))) (.cse3 (let ((.cse14 (bvshl (_ bv1 32) .cse15))) (bvor (bvshl (bvand .cse6 .cse14) .cse13) (bvshl (bvand .cse9 .cse14) .cse15)))) (.cse0 (let ((.cse12 (bvshl (_ bv1 32) .cse13))) (bvor (bvshl (bvand .cse9 .cse12) .cse13) (bvshl (bvand .cse6 .cse12) |ULTIMATE.start_main_~i~0#1|))))) (or (and (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 .cse1)) (= |ULTIMATE.start_main_~i~0#1| (_ bv5 32))) (and (= |ULTIMATE.start_main_~z~0#1| .cse2) (= |ULTIMATE.start_main_~i~0#1| (_ bv3 32))) (and (= (_ bv14 32) |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 (bvor .cse3 (bvor .cse4 .cse5))))) (and (= |ULTIMATE.start_main_~z~0#1| .cse1) (= (_ bv4 32) |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv12 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 .cse4))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv15 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 (bvor .cse3 (bvor (bvor (let ((.cse10 (bvadd (_ bv4294967292 32) |ULTIMATE.start_main_~i~0#1|))) (let ((.cse7 (bvshl (_ bv1 32) .cse10))) (bvor (bvshl (bvand .cse6 .cse7) .cse8) (bvshl (bvand .cse9 .cse7) .cse10)))) .cse4) .cse5))))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv13 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 (bvor .cse3 .cse4)))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv1 32)) (= (bvor .cse0 (_ bv0 32)) |ULTIMATE.start_main_~z~0#1|)) (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor (bvor (bvshl (bvand .cse6 (_ bv16384 32)) (_ bv15 32)) (bvshl (bvand .cse9 (_ bv16384 32)) (_ bv14 32))) (bvor (bvor (bvor (bvor (bvshl (bvand .cse9 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse6 (_ bv2048 32)) (_ bv12 32))) .cse4) (bvor (bvshl (bvand .cse9 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse6 (_ bv4096 32)) (_ bv13 32)))) (bvor (bvshl (bvand .cse6 (_ bv8192 32)) (_ bv14 32)) (bvshl (bvand .cse9 (_ bv8192 32)) (_ bv13 32))))) (bvor (bvshl (bvand .cse6 (_ bv32768 32)) (_ bv16 32)) (bvshl (bvand .cse9 (_ bv32768 32)) (_ bv15 32))))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv10 32)) (= (bvor .cse0 (bvor .cse3 (bvor .cse11 .cse5))) |ULTIMATE.start_main_~z~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv9 32)) (= (bvor (bvor .cse3 .cse11) .cse0) |ULTIMATE.start_main_~z~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv6 32)) (= |ULTIMATE.start_main_~z~0#1| (bvor (bvor .cse3 .cse1) .cse0))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv7 32)) (= |ULTIMATE.start_main_~z~0#1| .cse11)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv11 32)) (= |ULTIMATE.start_main_~z~0#1| .cse4)) (and (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 (bvor .cse3 (_ bv0 32)))) (= |ULTIMATE.start_main_~i~0#1| (_ bv2 32))) (and (= (bvor .cse0 .cse11) |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv8 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~z~0#1| (_ bv0 32))))))))) [2022-11-19 07:35:47,635 INFO L899 garLoopResultBuilder]: For program point L49-3(lines 49 52) no Hoare annotation was computed. [2022-11-19 07:35:47,641 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1] [2022-11-19 07:35:47,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:35:47,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:35:47 BoogieIcfgContainer [2022-11-19 07:35:47,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:35:47,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:35:47,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:35:47,709 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:35:47,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:32:48" (3/4) ... [2022-11-19 07:35:47,725 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:35:47,735 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 07:35:47,735 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-19 07:35:47,735 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:35:47,735 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:35:47,786 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:35:47,786 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:35:47,787 INFO L158 Benchmark]: Toolchain (without parser) took 179939.89ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 50.9MB in the beginning and 44.5MB in the end (delta: 6.4MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2022-11-19 07:35:47,787 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:35:47,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.37ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 51.7MB in the end (delta: -1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:35:47,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.74ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 50.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:35:47,788 INFO L158 Benchmark]: Boogie Preprocessor took 57.37ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 48.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:35:47,789 INFO L158 Benchmark]: RCFGBuilder took 461.08ms. Allocated memory is still 69.2MB. Free memory was 48.8MB in the beginning and 38.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:35:47,789 INFO L158 Benchmark]: TraceAbstraction took 178838.05ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 37.5MB in the beginning and 47.7MB in the end (delta: -10.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2022-11-19 07:35:47,790 INFO L158 Benchmark]: Witness Printer took 77.48ms. Allocated memory is still 109.1MB. Free memory was 47.7MB in the beginning and 44.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:35:47,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.37ms. Allocated memory is still 69.2MB. Free memory was 50.7MB in the beginning and 51.7MB in the end (delta: -1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.74ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 50.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.37ms. Allocated memory is still 69.2MB. Free memory was 50.0MB in the beginning and 48.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 461.08ms. Allocated memory is still 69.2MB. Free memory was 48.8MB in the beginning and 38.2MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 178838.05ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 37.5MB in the beginning and 47.7MB in the end (delta: -10.2MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Witness Printer took 77.48ms. Allocated memory is still 109.1MB. Free memory was 47.7MB in the beginning and 44.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 25]: 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: 178.6s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 38 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 477 IncrementalHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 30 mSDtfsCounter, 477 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 200 SyntacticMatches, 19 SemanticMatches, 111 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 159.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 25 NumberOfFragments, 2263 HoareAnnotationTreeSize, 2 FomulaSimplifications, 1461 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 165.2s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 311 ConstructedInterpolants, 3 QuantifiedInterpolants, 30976 SizeOfPredicates, 37 NumberOfNonLiveVariables, 565 ConjunctsInSsa, 203 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 360/1212 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: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((((((((((((z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))) && i == 5bv32) || (z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))) && i == 3bv32)) || (14bv32 == i && z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), ~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(256bv32, ~zero_extendFrom16To32(x)), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))))))) || (z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32))))) && 4bv32 == i)) || (i == 12bv32 && z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(256bv32, ~zero_extendFrom16To32(x)), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))))))) || (i == 15bv32 && z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), ~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967292bv32, i))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967292bv32, i))), ~bvadd64(4294967292bv32, i))), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(256bv32, ~zero_extendFrom16To32(x)), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))))))) || (i == 13bv32 && z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(256bv32, ~zero_extendFrom16To32(x)), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32)))))))) || (i == 1bv32 && ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), 0bv32) == z)) || z == ~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16384bv32), 15bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 16384bv32), 14bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2048bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2048bv32), 12bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(256bv32, ~zero_extendFrom16To32(x)), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4096bv32), 12bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4096bv32), 13bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8192bv32), 14bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8192bv32), 13bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32768bv32), 16bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32768bv32), 15bv32)))) || (i == 10bv32 && ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), ~bvor32(~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967293bv32)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967293bv32))), ~bvadd64(i, 4294967294bv32)))))) == z)) || (i == 9bv32 && ~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))) == z)) || (i == 6bv32 && z == ~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i))))) || (i == 7bv32 && z == ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32))))) || (i == 11bv32 && z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1024bv32), 11bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1024bv32), 10bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 128bv32), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 128bv32), 7bv32)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))), ~bvor32(~bvshl32(~bvand32(256bv32, ~zero_extendFrom16To32(x)), 8bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 256bv32), 9bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 512bv32), 9bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 512bv32), 10bv32)))))) || (z == ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(i, 4294967294bv32))), ~bvadd64(i, 4294967294bv32))), 0bv32)) && i == 2bv32)) || (~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), ~bvadd64(4294967295bv32, i)), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), ~bvshl32(1bv32, ~bvadd64(4294967295bv32, i))), i)), ~bvor32(~bvor32(~bvor32(~bvor32(~bvshl32(~bvand32(16bv32, ~zero_extendFrom16To32(x)), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 16bv32), 5bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 8bv32), 4bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 8bv32), 3bv32)), ~bvor32(~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 4bv32), 3bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 4bv32), 2bv32)), ~bvor32(~bvor32(0bv32, ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 1bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 1bv32), 0bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(x), 2bv32), 1bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(y), 2bv32), 2bv32)))))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 32bv32), 6bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 32bv32), 5bv32))), ~bvor32(~bvshl32(~bvand32(~zero_extendFrom16To32(y), 64bv32), 7bv32), ~bvshl32(~bvand32(~zero_extendFrom16To32(x), 64bv32), 6bv32)))) == z && i == 8bv32)) || (i == 0bv32 && z == 0bv32) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:35:47,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef02e595-2530-452c-a203-1ce2fe2c56bb/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE