./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 0e0057cc 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:05:04,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:05:04,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 15:05:04,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:05:04,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:05:05,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:05:05,012 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:05:05,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:05:05,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:05:05,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:05:05,015 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:05:05,015 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:05:05,016 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:05:05,016 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:05:05,017 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:05:05,017 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:05:05,018 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:05:05,019 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:05:05,019 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:05:05,020 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:05:05,020 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:05:05,021 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:05:05,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:05:05,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:05:05,023 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:05:05,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:05:05,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:05:05,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:05:05,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:05:05,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:05:05,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:05:05,025 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:05:05,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:05:05,026 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:05:05,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:05:05,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:05:05,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:05:05,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:05:05,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:05:05,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:05:05,028 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:05:05,028 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:05:05,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:05:05,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:05:05,029 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:05:05,029 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:05:05,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:05:05,029 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2023-12-02 15:05:05,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:05:05,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:05:05,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:05:05,267 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:05:05,268 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:05:05,269 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/bitvector/interleave_bits.i [2023-12-02 15:05:07,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:05:08,144 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:05:08,145 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/sv-benchmarks/c/bitvector/interleave_bits.i [2023-12-02 15:05:08,151 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data/a625ce84b/eff91bcf338249cb902962cf13792c72/FLAGe56730c36 [2023-12-02 15:05:08,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data/a625ce84b/eff91bcf338249cb902962cf13792c72 [2023-12-02 15:05:08,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:05:08,166 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:05:08,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:05:08,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:05:08,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:05:08,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d067c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08, skipping insertion in model container [2023-12-02 15:05:08,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:05:08,309 WARN L240 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2023-12-02 15:05:08,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:05:08,341 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:05:08,351 WARN L240 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2023-12-02 15:05:08,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:05:08,374 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:05:08,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08 WrapperNode [2023-12-02 15:05:08,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:05:08,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:05:08,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:05:08,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:05:08,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,390 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,417 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 217 [2023-12-02 15:05:08,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:05:08,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:05:08,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:05:08,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:05:08,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,439 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,446 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:05:08,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:05:08,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:05:08,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:05:08,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (1/1) ... [2023-12-02 15:05:08,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:05:08,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:08,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:05:08,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:05:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:05:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:05:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:05:08,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:05:08,611 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:05:08,613 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:05:11,047 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:05:11,571 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:05:11,571 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:05:11,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:11 BoogieIcfgContainer [2023-12-02 15:05:11,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:05:11,576 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:05:11,576 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:05:11,579 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:05:11,580 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:05:08" (1/3) ... [2023-12-02 15:05:11,580 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687edc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:11, skipping insertion in model container [2023-12-02 15:05:11,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:05:08" (2/3) ... [2023-12-02 15:05:11,581 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2687edc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:05:11, skipping insertion in model container [2023-12-02 15:05:11,581 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:11" (3/3) ... [2023-12-02 15:05:11,583 INFO L112 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2023-12-02 15:05:11,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:05:11,603 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:05:11,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:05:11,659 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=LoopHeads, 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;@7913f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:05:11,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:05:11,663 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) [2023-12-02 15:05:11,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 15:05:11,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:11,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 15:05:11,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:11,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash 10165867, now seen corresponding path program 1 times [2023-12-02 15:05:11,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:11,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436862323] [2023-12-02 15:05:11,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:11,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:05:11,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:12,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:12,072 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:05:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436862323] [2023-12-02 15:05:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436862323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:05:12,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:05:12,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:05:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286718580] [2023-12-02 15:05:12,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:05:12,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:05:12,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:05:12,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:05:12,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:05:12,114 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) [2023-12-02 15:05:12,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:12,216 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2023-12-02 15:05:12,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:05:12,218 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 [2023-12-02 15:05:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:12,225 INFO L225 Difference]: With dead ends: 13 [2023-12-02 15:05:12,225 INFO L226 Difference]: Without dead ends: 6 [2023-12-02 15:05:12,228 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 [2023-12-02 15:05:12,231 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:12,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:05:12,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2023-12-02 15:05:12,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-12-02 15:05:12,261 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) [2023-12-02 15:05:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-12-02 15:05:12,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2023-12-02 15:05:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:12,263 INFO L495 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-12-02 15:05:12,263 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) [2023-12-02 15:05:12,264 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-12-02 15:05:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:05:12,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:12,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:05:12,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:05:12,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:12,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:12,265 INFO L85 PathProgramCache]: Analyzing trace with hash 314004276, now seen corresponding path program 1 times [2023-12-02 15:05:12,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:12,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174814639] [2023-12-02 15:05:12,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:12,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:05:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:12,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:12,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:05:12,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174814639] [2023-12-02 15:05:12,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174814639] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:05:12,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133182437] [2023-12-02 15:05:12,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:12,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:12,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:05:12,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:05:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:12,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 15:05:12,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:12,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:12,902 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:05:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:12,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133182437] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:05:12,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [431679291] [2023-12-02 15:05:12,949 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-12-02 15:05:12,949 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:05:12,953 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:05:12,959 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:05:12,960 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:05:18,298 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:05:18,371 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0))' at error location [2023-12-02 15:05:18,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:05:18,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:05:18,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-12-02 15:05:18,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95491183] [2023-12-02 15:05:18,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:05:18,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:05:18,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:05:18,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:05:18,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:05:18,374 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) [2023-12-02 15:05:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:18,649 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2023-12-02 15:05:18,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:05:18,652 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 [2023-12-02 15:05:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:18,652 INFO L225 Difference]: With dead ends: 12 [2023-12-02 15:05:18,652 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 15:05:18,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:05:18,654 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:18,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:05:18,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 15:05:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-12-02 15:05:18,658 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) [2023-12-02 15:05:18,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-12-02 15:05:18,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-12-02 15:05:18,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:18,659 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-12-02 15:05:18,660 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) [2023-12-02 15:05:18,660 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-12-02 15:05:18,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 15:05:18,660 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:18,660 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1] [2023-12-02 15:05:18,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:05:18,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:18,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:18,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:18,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1067022165, now seen corresponding path program 2 times [2023-12-02 15:05:18,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:18,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860560751] [2023-12-02 15:05:18,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:18,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:05:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:19,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:05:19,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860560751] [2023-12-02 15:05:19,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860560751] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:05:19,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908592988] [2023-12-02 15:05:19,245 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:05:19,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:19,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:19,248 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:05:19,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:05:19,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-12-02 15:05:19,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:05:19,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 15:05:19,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:19,734 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:05:19,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:19,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908592988] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:05:19,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [155570043] [2023-12-02 15:05:19,831 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-12-02 15:05:19,831 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:05:19,831 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:05:19,831 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:05:19,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:05:23,578 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:05:23,662 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '158#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0))' at error location [2023-12-02 15:05:23,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:05:23,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:05:23,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-12-02 15:05:23,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628545730] [2023-12-02 15:05:23,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:05:23,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-02 15:05:23,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:05:23,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-02 15:05:23,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2023-12-02 15:05:23,665 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) [2023-12-02 15:05:26,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:28,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:30,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:32,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:34,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:36,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:38,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:40,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:42,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:44,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:44,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:44,336 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2023-12-02 15:05:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 15:05:44,342 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 [2023-12-02 15:05:44,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:44,343 INFO L225 Difference]: With dead ends: 18 [2023-12-02 15:05:44,343 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 15:05:44,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2023-12-02 15:05:44,345 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:44,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 10 Unknown, 0 Unchecked, 20.4s Time] [2023-12-02 15:05:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 15:05:44,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-02 15:05:44,350 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) [2023-12-02 15:05:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 15:05:44,351 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-12-02 15:05:44,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:44,351 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-12-02 15:05:44,351 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) [2023-12-02 15:05:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 15:05:44,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 15:05:44,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:44,352 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1] [2023-12-02 15:05:44,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:05:44,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:44,553 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:44,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1214139403, now seen corresponding path program 3 times [2023-12-02 15:05:44,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:44,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555682574] [2023-12-02 15:05:44,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:44,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:05:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:05:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:45,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:05:45,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555682574] [2023-12-02 15:05:45,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555682574] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:05:45,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189581659] [2023-12-02 15:05:45,499 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:05:45,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:45,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:05:45,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:05:45,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:05:47,221 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:05:47,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:05:47,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 15:05:47,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:05:47,257 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:47,257 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:05:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:05:47,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189581659] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:05:47,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [581096568] [2023-12-02 15:05:47,506 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2023-12-02 15:05:47,506 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:05:47,507 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:05:47,507 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:05:47,507 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:05:50,399 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:05:50,494 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '327#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0))' at error location [2023-12-02 15:05:50,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 15:05:50,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 15:05:50,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-12-02 15:05:50,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616364226] [2023-12-02 15:05:50,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 15:05:50,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-12-02 15:05:50,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:05:50,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-12-02 15:05:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2023-12-02 15:05:50,497 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) [2023-12-02 15:05:53,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:56,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 15:05:57,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:05:57,227 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-12-02 15:05:57,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 15:05:57,229 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 [2023-12-02 15:05:57,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:05:57,229 INFO L225 Difference]: With dead ends: 24 [2023-12-02 15:05:57,229 INFO L226 Difference]: Without dead ends: 21 [2023-12-02 15:05:57,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2023-12-02 15:05:57,231 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:05:57,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2023-12-02 15:05:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-12-02 15:05:57,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-12-02 15:05:57,234 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) [2023-12-02 15:05:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-12-02 15:05:57,235 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2023-12-02 15:05:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:05:57,235 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-12-02 15:05:57,235 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) [2023-12-02 15:05:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-12-02 15:05:57,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 15:05:57,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:05:57,236 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1] [2023-12-02 15:05:57,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 15:05:57,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:05:57,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:05:57,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:05:57,437 INFO L85 PathProgramCache]: Analyzing trace with hash -259127445, now seen corresponding path program 4 times [2023-12-02 15:05:57,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:05:57,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486877105] [2023-12-02 15:05:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:05:57,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:06:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:06:10,432 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:06:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:06:20,938 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:06:20,938 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:06:20,939 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:06:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:06:20,943 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-12-02 15:06:20,946 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:06:20,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:06:20 BoogieIcfgContainer [2023-12-02 15:06:20,989 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:06:20,989 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:06:20,989 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:06:20,990 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:06:20,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:05:11" (3/4) ... [2023-12-02 15:06:20,992 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:06:20,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:06:20,994 INFO L158 Benchmark]: Toolchain (without parser) took 72827.43ms. Allocated memory was 144.7MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 98.8MB in the beginning and 830.1MB in the end (delta: -731.3MB). Peak memory consumption was 477.7MB. Max. memory is 16.1GB. [2023-12-02 15:06:20,994 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:06:20,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.48ms. Allocated memory is still 144.7MB. Free memory was 98.4MB in the beginning and 87.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 15:06:20,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.87ms. Allocated memory is still 144.7MB. Free memory was 87.2MB in the beginning and 84.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:06:20,995 INFO L158 Benchmark]: Boogie Preprocessor took 33.91ms. Allocated memory is still 144.7MB. Free memory was 84.8MB in the beginning and 83.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:06:20,996 INFO L158 Benchmark]: RCFGBuilder took 3120.32ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 83.0MB in the beginning and 129.4MB in the end (delta: -46.3MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2023-12-02 15:06:20,996 INFO L158 Benchmark]: TraceAbstraction took 69413.07ms. Allocated memory was 195.0MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 128.3MB in the beginning and 831.1MB in the end (delta: -702.8MB). Peak memory consumption was 791.4MB. Max. memory is 16.1GB. [2023-12-02 15:06:20,996 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 1.4GB. Free memory was 831.1MB in the beginning and 830.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:06:20,999 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 144.7MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.48ms. Allocated memory is still 144.7MB. Free memory was 98.4MB in the beginning and 87.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.87ms. Allocated memory is still 144.7MB. Free memory was 87.2MB in the beginning and 84.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.91ms. Allocated memory is still 144.7MB. Free memory was 84.8MB in the beginning and 83.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3120.32ms. Allocated memory was 144.7MB in the beginning and 195.0MB in the end (delta: 50.3MB). Free memory was 83.0MB in the beginning and 129.4MB in the end (delta: -46.3MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * TraceAbstraction took 69413.07ms. Allocated memory was 195.0MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 128.3MB in the beginning and 831.1MB in the end (delta: -702.8MB). Peak memory consumption was 791.4MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 1.4GB. Free memory was 831.1MB in the beginning and 830.1MB in the end (delta: 1.0MB). 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 a call to reach_error is unreachable Unable to prove that a 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] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=1, x=65027, y=65281, z=0] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=2, x=65027, y=65281, z=2147483646] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=3, x=65027, y=65281, z=2147483646] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=4, x=65027, y=65281, z=2147483646] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=5, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=6, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=7, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=8, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=9, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=10, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=11, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=12, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=13, x=65027, y=65281, z=2147483647] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=14, x=65027, y=65281, z=4294967295] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=15, x=65027, y=65281, z=4294967295] [L49] COND TRUE i < sizeof(x) * 8 [L50] EXPR 1U << i [L50] EXPR x & (1U << i) [L50] EXPR (x & (1U << i)) << i [L50] EXPR 1U << i [L50] EXPR y & (1U << i) [L50] EXPR (y & (1U << i)) << (i + 1) [L50] EXPR ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L50] z |= ((x & (1U << i)) << i) | ((y & (1U << i)) << (i + 1)) [L51] i += 1U VAL [i=16, x=65027, y=65281, z=4294967295] [L49] COND FALSE !(i < sizeof(x) * 8) [L53] xx = x [L54] yy = y [L55] EXPR xx | (xx << 8u) [L55] EXPR (xx | (xx << 8u)) & 16711935U [L55] xx = (xx | (xx << 8u)) & 16711935U [L56] EXPR xx | (xx << 4u) [L56] EXPR (xx | (xx << 4u)) & 252645135U [L56] xx = (xx | (xx << 4u)) & 252645135U [L57] EXPR xx | (xx << 2u) [L57] EXPR (xx | (xx << 2u)) & 858993459U [L57] xx = (xx | (xx << 2u)) & 858993459U [L58] EXPR xx | (xx << 1u) [L58] EXPR (xx | (xx << 1u)) & 1431655765U [L58] xx = (xx | (xx << 1u)) & 1431655765U [L59] EXPR yy | (yy << 8u) [L59] EXPR (yy | (yy << 8u)) & 16711935U [L59] yy = (yy | (yy << 8u)) & 16711935U [L60] EXPR yy | (yy << 4u) [L60] EXPR (yy | (yy << 4u)) & 252645135U [L60] yy = (yy | (yy << 4u)) & 252645135U [L61] EXPR yy | (yy << 2u) [L61] EXPR (yy | (yy << 2u)) & 858993459U [L61] yy = (yy | (yy << 2u)) & 858993459U [L62] EXPR yy | (yy << 1u) [L62] EXPR (yy | (yy << 1u)) & 1431655765U [L62] yy = (yy | (yy << 1u)) & 1431655765U [L64] EXPR xx | (yy << 1U) [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: 69.3s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 27.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 27.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 27.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.3s 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, 15.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 269 SizeOfPredicates, 0 NumberOfNonLiveVariables, 303 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 [2023-12-02 15:06:21,019 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/interleave_bits.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:06:22,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:06:22,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 15:06:22,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:06:22,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:06:22,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:06:22,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:06:22,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:06:22,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:06:22,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:06:22,991 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:06:22,992 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:06:22,992 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:06:22,993 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:06:22,993 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:06:22,994 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:06:22,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:06:22,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:06:22,996 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:06:22,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:06:22,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:06:22,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:06:22,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:06:22,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:06:22,999 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 15:06:23,000 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 15:06:23,001 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 15:06:23,001 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:06:23,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:06:23,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:06:23,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:06:23,003 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 15:06:23,003 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:06:23,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:06:23,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:06:23,004 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:06:23,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:06:23,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:06:23,004 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 15:06:23,005 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 15:06:23,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:06:23,005 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:06:23,006 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:06:23,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:06:23,006 INFO L153 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41cbcdfa6f09b615c08bb2dbf908be5e0a68dc8c6a10c0ba76a3c4e4c07e69fb [2023-12-02 15:06:23,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:06:23,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:06:23,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:06:23,355 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:06:23,356 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:06:23,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/bitvector/interleave_bits.i [2023-12-02 15:06:26,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:06:26,439 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:06:26,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/sv-benchmarks/c/bitvector/interleave_bits.i [2023-12-02 15:06:26,449 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data/d3089005d/57dbb8cdbc9b45c9b68cbc344d069751/FLAGdcacafd23 [2023-12-02 15:06:26,769 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/data/d3089005d/57dbb8cdbc9b45c9b68cbc344d069751 [2023-12-02 15:06:26,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:06:26,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:06:26,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:06:26,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:06:26,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:06:26,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:06:26" (1/1) ... [2023-12-02 15:06:26,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31348680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:26, skipping insertion in model container [2023-12-02 15:06:26,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:06:26" (1/1) ... [2023-12-02 15:06:26,813 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:06:26,991 WARN L240 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2023-12-02 15:06:27,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:06:27,030 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:06:27,045 WARN L240 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_4558a1fd-27aa-48b2-ba5f-72370dec2ead/sv-benchmarks/c/bitvector/interleave_bits.i[1175,1188] [2023-12-02 15:06:27,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:06:27,075 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:06:27,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27 WrapperNode [2023-12-02 15:06:27,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:06:27,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:06:27,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:06:27,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:06:27,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,117 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 43 [2023-12-02 15:06:27,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:06:27,118 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:06:27,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:06:27,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:06:27,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:06:27,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:06:27,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:06:27,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:06:27,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (1/1) ... [2023-12-02 15:06:27,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:06:27,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:06:27,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:06:27,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:06:27,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:06:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 15:06:27,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:06:27,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:06:27,314 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:06:27,317 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:06:27,454 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:06:27,482 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:06:27,482 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:06:27,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:06:27 BoogieIcfgContainer [2023-12-02 15:06:27,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:06:27,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:06:27,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:06:27,491 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:06:27,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:06:26" (1/3) ... [2023-12-02 15:06:27,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22df987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:06:27, skipping insertion in model container [2023-12-02 15:06:27,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:06:27" (2/3) ... [2023-12-02 15:06:27,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22df987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:06:27, skipping insertion in model container [2023-12-02 15:06:27,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:06:27" (3/3) ... [2023-12-02 15:06:27,495 INFO L112 eAbstractionObserver]: Analyzing ICFG interleave_bits.i [2023-12-02 15:06:27,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:06:27,520 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:06:27,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:06:27,584 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=LoopHeads, 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;@44e5d1c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:06:27,584 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:06:27,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) [2023-12-02 15:06:27,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 15:06:27,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:06:27,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-12-02 15:06:27,595 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:06:27,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:06:27,601 INFO L85 PathProgramCache]: Analyzing trace with hash 57541414, now seen corresponding path program 1 times [2023-12-02 15:06:27,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:06:27,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958621243] [2023-12-02 15:06:27,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:06:27,613 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 [2023-12-02 15:06:27,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:06:27,615 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:06:27,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:06:27,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:06:27,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:27,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:27,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:06:27,720 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:06:27,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958621243] [2023-12-02 15:06:27,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [958621243] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:06:27,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:06:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:06:27,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687930868] [2023-12-02 15:06:27,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:06:27,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:06:27,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:06:27,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:06:27,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:06:27,762 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:06:27,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:06:27,793 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-12-02 15:06:27,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:06:27,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-12-02 15:06:27,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:06:27,803 INFO L225 Difference]: With dead ends: 15 [2023-12-02 15:06:27,804 INFO L226 Difference]: Without dead ends: 7 [2023-12-02 15:06:27,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:06:27,810 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:06:27,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:06:27,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2023-12-02 15:06:27,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-12-02 15:06:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2023-12-02 15:06:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-12-02 15:06:27,840 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2023-12-02 15:06:27,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:06:27,840 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2023-12-02 15:06:27,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 15:06:27,841 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-12-02 15:06:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 15:06:27,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:06:27,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-12-02 15:06:27,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:28,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:28,042 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:06:28,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:06:28,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1785449205, now seen corresponding path program 1 times [2023-12-02 15:06:28,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:06:28,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539795585] [2023-12-02 15:06:28,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:06:28,045 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 [2023-12-02 15:06:28,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:06:28,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:06:28,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:06:28,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:06:28,114 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:28,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:28,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:28,170 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:28,170 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:06:28,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539795585] [2023-12-02 15:06:28,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [539795585] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:28,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [658562608] [2023-12-02 15:06:28,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:06:28,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:06:28,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:06:28,173 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:06:28,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 15:06:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:06:28,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:06:28,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:28,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:28,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:28,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [658562608] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:28,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913166952] [2023-12-02 15:06:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:06:28,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:06:28,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:06:28,280 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:06:28,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:06:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:06:28,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 15:06:28,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:28,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:28,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:28,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:28,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913166952] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:28,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 15:06:28,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3, 3, 3, 3] total 6 [2023-12-02 15:06:28,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953300574] [2023-12-02 15:06:28,378 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 15:06:28,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:06:28,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:06:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:06:28,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:06:28,380 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 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) [2023-12-02 15:06:28,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:06:28,422 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2023-12-02 15:06:28,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 15:06:28,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 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) Word has length 6 [2023-12-02 15:06:28,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:06:28,423 INFO L225 Difference]: With dead ends: 14 [2023-12-02 15:06:28,423 INFO L226 Difference]: Without dead ends: 10 [2023-12-02 15:06:28,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-12-02 15:06:28,426 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:06:28,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:06:28,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-12-02 15:06:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-12-02 15:06:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2023-12-02 15:06:28,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-12-02 15:06:28,431 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2023-12-02 15:06:28,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:06:28,431 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-12-02 15:06:28,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 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) [2023-12-02 15:06:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-12-02 15:06:28,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 15:06:28,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:06:28,433 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2023-12-02 15:06:28,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:28,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 15:06:28,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 15:06:29,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 15:06:29,041 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:06:29,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:06:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1198981402, now seen corresponding path program 2 times [2023-12-02 15:06:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:06:29,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1238355262] [2023-12-02 15:06:29,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 15:06:29,043 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 [2023-12-02 15:06:29,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:06:29,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:06:29,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:29,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 15:06:29,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:29,092 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:06:29,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:29,149 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:29,149 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:29,241 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:29,241 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:06:29,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1238355262] [2023-12-02 15:06:29,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1238355262] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:29,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1790677235] [2023-12-02 15:06:29,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 15:06:29,242 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:06:29,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:06:29,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:06:29,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 15:06:29,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 15:06:29,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:29,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 15:06:29,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:29,356 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:29,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:29,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1790677235] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:29,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958025568] [2023-12-02 15:06:29,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 15:06:29,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:06:29,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:06:29,377 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:06:29,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 15:06:29,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 15:06:29,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:29,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 15:06:29,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:29,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:29,453 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:29,603 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:29,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958025568] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:29,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 15:06:29,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 15 [2023-12-02 15:06:29,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399253203] [2023-12-02 15:06:29,604 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 15:06:29,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 15:06:29,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:06:29,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 15:06:29,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-02 15:06:29,607 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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) [2023-12-02 15:06:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:06:29,829 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2023-12-02 15:06:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 15:06:29,830 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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 9 [2023-12-02 15:06:29,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:06:29,831 INFO L225 Difference]: With dead ends: 20 [2023-12-02 15:06:29,831 INFO L226 Difference]: Without dead ends: 16 [2023-12-02 15:06:29,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=265, Unknown=0, NotChecked=0, Total=420 [2023-12-02 15:06:29,833 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:06:29,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:06:29,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-02 15:06:29,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-02 15:06:29,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2023-12-02 15:06:29,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-12-02 15:06:29,839 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2023-12-02 15:06:29,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:06:29,839 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-12-02 15:06:29,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 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) [2023-12-02 15:06:29,840 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-12-02 15:06:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 15:06:29,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:06:29,841 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1] [2023-12-02 15:06:29,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-02 15:06:30,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 15:06:30,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 15:06:30,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 15:06:30,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:06:30,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:06:30,443 INFO L85 PathProgramCache]: Analyzing trace with hash 533804166, now seen corresponding path program 3 times [2023-12-02 15:06:30,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:06:30,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917931731] [2023-12-02 15:06:30,444 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:06:30,444 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 [2023-12-02 15:06:30,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:06:30,445 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:06:30,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:30,517 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-02 15:06:30,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:30,521 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 15:06:30,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:30,639 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:30,639 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:31,026 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:06:31,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917931731] [2023-12-02 15:06:31,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917931731] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:31,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077880004] [2023-12-02 15:06:31,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:06:31,027 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:06:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:06:31,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:06:31,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 15:06:31,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-02 15:06:31,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:31,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 15:06:31,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:31,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:31,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1077880004] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:31,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713396928] [2023-12-02 15:06:31,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:06:31,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:06:31,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:06:31,235 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:06:31,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 15:06:31,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-12-02 15:06:31,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:31,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 15:06:31,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:31,374 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:06:31,437 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:31,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713396928] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:06:31,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 15:06:31,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12, 12, 12, 12] total 23 [2023-12-02 15:06:31,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344230493] [2023-12-02 15:06:31,438 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 15:06:31,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 15:06:31,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:06:31,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 15:06:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2023-12-02 15:06:31,440 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 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) [2023-12-02 15:06:32,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:06:32,374 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2023-12-02 15:06:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-02 15:06:32,374 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 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 15 [2023-12-02 15:06:32,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:06:32,375 INFO L225 Difference]: With dead ends: 32 [2023-12-02 15:06:32,375 INFO L226 Difference]: Without dead ends: 28 [2023-12-02 15:06:32,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=370, Invalid=820, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 15:06:32,377 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 35 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:06:32,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 33 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:06:32,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-12-02 15:06:32,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-12-02 15:06:32,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 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) [2023-12-02 15:06:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-12-02 15:06:32,386 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 15 [2023-12-02 15:06:32,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:06:32,386 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-12-02 15:06:32,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 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) [2023-12-02 15:06:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-12-02 15:06:32,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 15:06:32,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:06:32,387 INFO L195 NwaCegarLoop]: trace histogram [16, 1, 1, 1, 1, 1] [2023-12-02 15:06:32,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 15:06:32,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-02 15:06:32,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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)] Ended with exit code 0 [2023-12-02 15:06:32,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:32,988 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:06:32,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:06:32,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1421692378, now seen corresponding path program 4 times [2023-12-02 15:06:32,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 15:06:32,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395146941] [2023-12-02 15:06:32,989 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:06:32,989 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 [2023-12-02 15:06:32,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 15:06:32,990 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 15:06:32,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:06:33,087 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:06:33,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:06:33,096 WARN L260 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 15:06:33,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:06:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:06:34,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:07:20,133 WARN L854 $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 [2023-12-02 15:07:20,185 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2023-12-02 15:07:20,185 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 15:07:20,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395146941] [2023-12-02 15:07:20,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395146941] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:07:20,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [146183047] [2023-12-02 15:07:20,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:07:20,186 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 15:07:20,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 [2023-12-02 15:07:20,187 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 15:07:20,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 15:07:20,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:07:20,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:07:20,373 WARN L260 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 15:07:20,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:20,699 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:20,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:07:21,763 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 16 not checked. [2023-12-02 15:07:21,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [146183047] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:07:21,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885776113] [2023-12-02 15:07:21,764 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 15:07:21,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:07:21,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:07:21,765 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:07:21,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 15:07:21,881 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 15:07:21,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:07:21,887 WARN L260 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 55 conjunts are in the unsatisfiable core [2023-12-02 15:07:21,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:07:22,159 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:07:22,159 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:08:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 120 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:08:18,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885776113] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:08:18,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-12-02 15:08:18,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19, 19, 19, 19] total 52 [2023-12-02 15:08:18,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292264335] [2023-12-02 15:08:18,941 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-12-02 15:08:18,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-12-02 15:08:18,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 15:08:18,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-12-02 15:08:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=720, Invalid=1935, Unknown=1, NotChecked=100, Total=2756 [2023-12-02 15:08:18,945 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 53 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 52 states have internal predecessors, (57), 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) [2023-12-02 15:08:25,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:27,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:29,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:32,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:34,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:36,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:39,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:41,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:43,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:45,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:48,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:50,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:52,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:54,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:57,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:08:59,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:09:01,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:09:03,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:09:05,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2023-12-02 15:09:13,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:09:13,149 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-12-02 15:09:13,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 15:09:13,149 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 52 states have internal predecessors, (57), 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 21 [2023-12-02 15:09:13,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:09:13,150 INFO L225 Difference]: With dead ends: 28 [2023-12-02 15:09:13,150 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 15:09:13,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 66 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 110.2s TimeCoverageRelationStatistics Valid=790, Invalid=2073, Unknown=3, NotChecked=104, Total=2970 [2023-12-02 15:09:13,152 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 2 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:09:13,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 299 Invalid, 19 Unknown, 19 Unchecked, 44.7s Time] [2023-12-02 15:09:13,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 15:09:13,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 15:09:13,154 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) [2023-12-02 15:09:13,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 15:09:13,154 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2023-12-02 15:09:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:09:13,154 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 15:09:13,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 52 states have internal predecessors, (57), 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) [2023-12-02 15:09:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 15:09:13,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 15:09:13,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 15:09:13,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-02 15:09:13,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 15:09:13,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 15:09:13,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/cvc4 --incremental --print-success --lang smt [2023-12-02 15:09:13,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 15:12:38,895 WARN L293 SmtUtils]: Spent 3.42m on a formula simplification. DAG size of input: 437 DAG size of output: 418 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-12-02 15:12:38,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 15:12:38,900 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2023-12-02 15:12:38,900 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 15:12:38,901 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2023-12-02 15:12:38,901 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2023-12-02 15:12:38,901 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 23 28) no Hoare annotation was computed. [2023-12-02 15:12:38,904 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 52) the Hoare annotation is: (let ((.cse18 ((_ zero_extend 16) |ULTIMATE.start_main_~y~0#1|)) (.cse19 ((_ zero_extend 16) |ULTIMATE.start_main_~x~0#1|))) (let ((.cse9 (bvor (_ bv0 32) (bvor (bvshl (bvand .cse18 (_ bv1 32)) (_ bv1 32)) (bvshl (bvand .cse19 (_ bv1 32)) (_ bv0 32)))))) (let ((.cse15 (bvor .cse9 (bvor (bvshl (bvand .cse19 (_ bv2 32)) (_ bv1 32)) (bvshl (bvand .cse18 (_ bv2 32)) (_ bv2 32)))))) (let ((.cse3 (bvor (bvor (bvshl (bvand .cse18 (_ bv4 32)) (_ bv3 32)) (bvshl (bvand .cse19 (_ bv4 32)) (_ bv2 32))) .cse15))) (let ((.cse4 (bvor (bvor (bvshl (bvand .cse18 (_ bv8 32)) (_ bv4 32)) (bvshl (bvand .cse19 (_ bv8 32)) (_ bv3 32))) .cse3))) (let ((.cse17 (bvor (bvor (bvshl (bvand (_ bv16 32) .cse19) (_ bv4 32)) (bvshl (bvand .cse18 (_ bv16 32)) (_ bv5 32))) .cse4))) (let ((.cse14 (bvor .cse17 (bvor (bvshl (bvand .cse18 (_ bv32 32)) (_ bv6 32)) (bvshl (bvand .cse19 (_ bv32 32)) (_ bv5 32)))))) (let ((.cse8 (bvor .cse14 (bvor (bvshl (bvand .cse18 (_ bv64 32)) (_ bv7 32)) (bvshl (bvand .cse19 (_ bv64 32)) (_ bv6 32)))))) (let ((.cse13 (bvor (bvor (bvshl (bvand .cse18 (_ bv128 32)) (_ bv8 32)) (bvshl (bvand .cse19 (_ bv128 32)) (_ bv7 32))) .cse8))) (let ((.cse5 (bvor .cse13 (bvor (bvshl (bvand (_ bv256 32) .cse19) (_ bv8 32)) (bvshl (bvand .cse18 (_ bv256 32)) (_ bv9 32)))))) (let ((.cse6 (bvor .cse5 (bvor (bvshl (bvand .cse19 (_ bv512 32)) (_ bv9 32)) (bvshl (bvand .cse18 (_ bv512 32)) (_ bv10 32)))))) (let ((.cse10 (bvor (bvor (bvshl (bvand .cse18 (_ bv1024 32)) (_ bv11 32)) (bvshl (bvand .cse19 (_ bv1024 32)) (_ bv10 32))) .cse6))) (let ((.cse11 (bvor (bvor (bvshl (bvand .cse19 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse18 (_ bv2048 32)) (_ bv12 32))) .cse10))) (let ((.cse16 (bvor .cse11 (bvor (bvshl (bvand .cse19 (_ bv4096 32)) (_ bv12 32)) (bvshl (bvand .cse18 (_ bv4096 32)) (_ bv13 32)))))) (let ((.cse12 (bvor .cse16 (bvor (bvshl (bvand .cse18 (_ bv8192 32)) (_ bv14 32)) (bvshl (bvand .cse19 (_ bv8192 32)) (_ bv13 32)))))) (let ((.cse0 (bvor (bvor (bvshl (bvand .cse18 (_ bv16384 32)) (_ bv15 32)) (bvshl (bvand .cse19 (_ bv16384 32)) (_ bv14 32))) .cse12)) (.cse7 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv15 32)))) (let ((.cse2 (forall ((v_subst_2 (_ BitVec 16)) (v_subst_1 (_ BitVec 16))) (let ((.cse20 ((_ zero_extend 16) v_subst_2)) (.cse21 ((_ zero_extend 16) v_subst_1))) (= (bvor (bvor (bvor (bvor (bvor (bvshl (bvand .cse20 (_ bv4096 32)) (_ bv13 32)) (bvshl (bvand .cse21 (_ bv4096 32)) (_ bv12 32))) (bvor (bvor (bvor (bvshl (bvand .cse21 (_ bv1024 32)) (_ bv10 32)) (bvshl (bvand .cse20 (_ bv1024 32)) (_ bv11 32))) (bvor (bvor (bvor (bvor (bvshl (bvand .cse21 (_ bv128 32)) (_ bv7 32)) (bvshl (bvand (_ bv128 32) .cse20) (_ bv8 32))) (bvor (bvor (bvor (bvor (bvor (bvor (bvshl (bvand (_ bv4 32) .cse20) (_ bv3 32)) (bvshl (bvand (_ bv4 32) .cse21) (_ bv2 32))) (bvor (bvor (bvshl (bvand .cse20 (_ bv2 32)) (_ bv2 32)) (bvshl (bvand .cse21 (_ bv2 32)) (_ bv1 32))) (bvor (bvor (bvshl (bvand .cse21 (_ bv1 32)) (_ bv0 32)) (bvshl (bvand .cse20 (_ bv1 32)) (_ bv1 32))) (_ bv0 32)))) (bvor (bvshl (bvand .cse20 (_ bv8 32)) (_ bv4 32)) (bvshl (bvand .cse21 (_ bv8 32)) (_ bv3 32)))) (bvor (bvshl (bvand (_ bv16 32) .cse20) (_ bv5 32)) (bvshl (bvand (_ bv16 32) .cse21) (_ bv4 32)))) (bvor (bvshl (bvand .cse21 (_ bv32 32)) (_ bv5 32)) (bvshl (bvand .cse20 (_ bv32 32)) (_ bv6 32)))) (bvor (bvshl (bvand .cse21 (_ bv64 32)) (_ bv6 32)) (bvshl (bvand .cse20 (_ bv64 32)) (_ bv7 32))))) (bvor (bvshl (bvand (_ bv256 32) .cse20) (_ bv9 32)) (bvshl (bvand (_ bv256 32) .cse21) (_ bv8 32)))) (bvor (bvshl (bvand .cse20 (_ bv512 32)) (_ bv10 32)) (bvshl (bvand .cse21 (_ bv512 32)) (_ bv9 32))))) (bvor (bvshl (bvand .cse21 (_ bv2048 32)) (_ bv11 32)) (bvshl (bvand .cse20 (_ bv2048 32)) (_ bv12 32))))) (bvor (bvshl (bvand (_ bv8192 32) .cse20) (_ bv14 32)) (bvshl (bvand (_ bv8192 32) .cse21) (_ bv13 32)))) (bvor (bvshl (bvand .cse21 (_ bv16384 32)) (_ bv14 32)) (bvshl (bvand .cse20 (_ bv16384 32)) (_ bv15 32)))) (bvor (bvshl (bvand .cse21 (_ bv32768 32)) (_ bv15 32)) (bvshl (bvand .cse20 (_ bv32768 32)) (_ bv16 32)))) (bvor (let ((.cse22 (bvshl (_ bv1 32) .cse7))) (bvor (bvshl (bvand .cse20 .cse22) (bvadd (_ bv16 32) |ULTIMATE.start_main_~i~0#1|)) (bvshl (bvand .cse21 .cse22) .cse7))) (let ((.cse24 (bvadd (_ bv14 32) |ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse23 (bvshl (_ bv1 32) .cse24))) (bvor (bvshl (bvand .cse21 .cse23) .cse24) (bvshl (bvand .cse20 .cse23) .cse7))) (let ((.cse26 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv13 32)))) (bvor (let ((.cse27 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv12 32)))) (bvor (let ((.cse25 (bvshl (_ bv1 32) .cse27))) (bvor (bvshl (bvand .cse20 .cse25) .cse26) (bvshl (bvand .cse21 .cse25) .cse27))) (let ((.cse29 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv11 32)))) (bvor (let ((.cse28 (bvshl (_ bv1 32) .cse29))) (bvor (bvshl (bvand .cse21 .cse28) .cse29) (bvshl (bvand .cse20 .cse28) .cse27))) (let ((.cse31 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv10 32)))) (bvor (let ((.cse30 (bvshl (_ bv1 32) .cse31))) (bvor (bvshl (bvand .cse21 .cse30) .cse31) (bvshl (bvand .cse20 .cse30) .cse29))) (let ((.cse49 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv9 32)))) (bvor (let ((.cse34 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv8 32)))) (bvor (let ((.cse33 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv7 32)))) (bvor (let ((.cse32 (bvshl (_ bv1 32) .cse33))) (bvor (bvshl (bvand .cse21 .cse32) .cse33) (bvshl (bvand .cse20 .cse32) .cse34))) (let ((.cse36 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv6 32)))) (bvor (let ((.cse35 (bvshl (_ bv1 32) .cse36))) (bvor (bvshl (bvand .cse21 .cse35) .cse36) (bvshl (bvand .cse20 .cse35) .cse33))) (let ((.cse38 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv5 32)))) (bvor (let ((.cse37 (bvshl (_ bv1 32) .cse38))) (bvor (bvshl (bvand .cse37 .cse21) .cse38) (bvshl (bvand .cse37 .cse20) .cse36))) (let ((.cse40 (bvadd (_ bv4 32) |ULTIMATE.start_main_~i~0#1|))) (bvor (let ((.cse39 (bvshl (_ bv1 32) .cse40))) (bvor (bvshl (bvand .cse21 .cse39) .cse40) (bvshl (bvand .cse20 .cse39) .cse38))) (let ((.cse42 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv3 32)))) (bvor (let ((.cse43 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv2 32)))) (bvor (let ((.cse41 (bvshl (_ bv1 32) .cse43))) (bvor (bvshl (bvand .cse20 .cse41) .cse42) (bvshl (bvand .cse21 .cse41) .cse43))) (let ((.cse45 (bvadd |ULTIMATE.start_main_~i~0#1| (_ bv1 32)))) (bvor (bvor |ULTIMATE.start_main_~z~0#1| (let ((.cse44 (bvshl (_ bv1 32) |ULTIMATE.start_main_~i~0#1|))) (bvor (bvshl (bvand .cse44 .cse21) |ULTIMATE.start_main_~i~0#1|) (bvshl (bvand .cse44 .cse20) .cse45)))) (let ((.cse46 (bvshl (_ bv1 32) .cse45))) (bvor (bvshl (bvand .cse21 .cse46) .cse45) (bvshl (bvand .cse20 .cse46) .cse43))))))) (let ((.cse47 (bvshl (_ bv1 32) .cse42))) (bvor (bvshl (bvand .cse20 .cse47) .cse40) (bvshl (bvand .cse21 .cse47) .cse42))))))))))))) (let ((.cse48 (bvshl (_ bv1 32) .cse34))) (bvor (bvshl (bvand .cse21 .cse48) .cse34) (bvshl (bvand .cse20 .cse48) .cse49))))) (let ((.cse50 (bvshl (_ bv1 32) .cse49))) (bvor (bvshl (bvand .cse20 .cse50) .cse31) (bvshl (bvand .cse21 .cse50) .cse49))))))))))) (let ((.cse51 (bvshl (_ bv1 32) .cse26))) (bvor (bvshl (bvand .cse20 .cse51) .cse24) (bvshl (bvand .cse21 .cse51) .cse26)))))))))))) (.cse1 (= |ULTIMATE.start_main_~z~0#1| (bvor .cse0 (bvor (bvshl (bvand .cse18 (_ bv32768 32)) (_ bv16 32)) (bvshl (bvand .cse19 (_ bv32768 32)) (_ bv15 32))))))) (or (and (= |ULTIMATE.start_main_~i~0#1| (_ bv15 32)) (= |ULTIMATE.start_main_~z~0#1| .cse0)) (and .cse1 (or .cse2 (not (bvult |ULTIMATE.start_main_~i~0#1| (_ bv16 32))))) (and (= |ULTIMATE.start_main_~z~0#1| .cse3) (= |ULTIMATE.start_main_~i~0#1| (_ bv3 32))) (and (= |ULTIMATE.start_main_~z~0#1| .cse4) (= (_ bv4 32) |ULTIMATE.start_main_~i~0#1|)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv9 32)) (= |ULTIMATE.start_main_~z~0#1| .cse5)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv10 32)) (= |ULTIMATE.start_main_~z~0#1| .cse6)) (and (or .cse2 (not (bvult .cse7 (_ bv16 32)))) .cse1) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv7 32)) (= |ULTIMATE.start_main_~z~0#1| .cse8)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~z~0#1| .cse9)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv11 32)) (= |ULTIMATE.start_main_~z~0#1| .cse10)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv12 32)) (= |ULTIMATE.start_main_~z~0#1| .cse11)) (and (= (_ bv14 32) |ULTIMATE.start_main_~i~0#1|) (= |ULTIMATE.start_main_~z~0#1| .cse12)) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv8 32)) (= |ULTIMATE.start_main_~z~0#1| .cse13)) (and (= .cse14 |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv6 32))) (and (= |ULTIMATE.start_main_~z~0#1| .cse15) (= |ULTIMATE.start_main_~i~0#1| (_ bv2 32))) (and (= |ULTIMATE.start_main_~i~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~z~0#1| (_ bv0 32))) (and (= .cse16 |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv13 32))) (and (= .cse17 |ULTIMATE.start_main_~z~0#1|) (= |ULTIMATE.start_main_~i~0#1| (_ bv5 32))))))))))))))))))))) [2023-12-02 15:12:38,905 INFO L899 garLoopResultBuilder]: For program point L49-3(lines 49 52) no Hoare annotation was computed. [2023-12-02 15:12:38,908 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1] [2023-12-02 15:12:38,910 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:12:38,943 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_subst_2 : bv16, v_subst_1 : bv16 :: ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 4096bv32), 13bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 4096bv32), 12bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1024bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1024bv32), 11bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 128bv32), 7bv32), ~bvshl~32(~bvand~32(128bv32, ~zero_extend~32~16(v_subst_2)), 8bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_2)), 3bv32), ~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_1)), 2bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2bv32), 2bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2bv32), 1bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1bv32), 0bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1bv32), 1bv32)), 0bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 8bv32), 4bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 8bv32), 3bv32))), ~bvor~32(~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_2)), 5bv32), ~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_1)), 4bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32bv32), 5bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32bv32), 6bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 64bv32), 6bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 64bv32), 7bv32)))), ~bvor~32(~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_2)), 9bv32), ~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_1)), 8bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 512bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 512bv32), 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2048bv32), 11bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2048bv32), 12bv32)))), ~bvor~32(~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_2)), 14bv32), ~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_1)), 13bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 16384bv32), 14bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 16384bv32), 15bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32768bv32), 15bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32768bv32), 16bv32))) == ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(16bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 13bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 11bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 11bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 7bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 8bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 6bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 7bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_1)), ~bvadd~32(~i~0, 5bv32)), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 6bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(~i~0, 5bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 3bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 2bv32))), ~bvor~32(~bvor~32(~z~0, ~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_1)), ~i~0), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 1bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 1bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 2bv32))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(~i~0, 3bv32)))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 8bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 9bv32))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(~i~0, 13bv32))))))) could not be translated [2023-12-02 15:12:38,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (forall v_subst_2 : bv16, v_subst_1 : bv16 :: ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 4096bv32), 13bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 4096bv32), 12bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1024bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1024bv32), 11bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 128bv32), 7bv32), ~bvshl~32(~bvand~32(128bv32, ~zero_extend~32~16(v_subst_2)), 8bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_2)), 3bv32), ~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_1)), 2bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2bv32), 2bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2bv32), 1bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1bv32), 0bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1bv32), 1bv32)), 0bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 8bv32), 4bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 8bv32), 3bv32))), ~bvor~32(~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_2)), 5bv32), ~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_1)), 4bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32bv32), 5bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32bv32), 6bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 64bv32), 6bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 64bv32), 7bv32)))), ~bvor~32(~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_2)), 9bv32), ~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_1)), 8bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 512bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 512bv32), 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2048bv32), 11bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2048bv32), 12bv32)))), ~bvor~32(~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_2)), 14bv32), ~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_1)), 13bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 16384bv32), 14bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 16384bv32), 15bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32768bv32), 15bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32768bv32), 16bv32))) == ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(16bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 13bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 11bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 11bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 7bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 8bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 6bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 7bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_1)), ~bvadd~32(~i~0, 5bv32)), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 6bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(~i~0, 5bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 3bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 2bv32))), ~bvor~32(~bvor~32(~z~0, ~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_1)), ~i~0), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 1bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 1bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 2bv32))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(~i~0, 3bv32)))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 8bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 9bv32))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(~i~0, 13bv32))))))) could not be translated [2023-12-02 15:12:38,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:12:38 BoogieIcfgContainer [2023-12-02 15:12:38,965 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:12:38,966 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:12:38,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:12:38,966 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:12:38,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:06:27" (3/4) ... [2023-12-02 15:12:38,969 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 15:12:38,976 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-12-02 15:12:38,976 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 15:12:38,976 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 15:12:38,977 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 15:12:39,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 15:12:39,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 15:12:39,074 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:12:39,075 INFO L158 Benchmark]: Toolchain (without parser) took 372301.88ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 39.4MB in the end (delta: 60.5MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,075 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory was 54.4MB in the beginning and 54.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:12:39,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.35ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 88.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.92ms. Allocated memory is still 123.7MB. Free memory was 88.7MB in the beginning and 87.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,076 INFO L158 Benchmark]: Boogie Preprocessor took 30.61ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,076 INFO L158 Benchmark]: RCFGBuilder took 333.37ms. Allocated memory is still 123.7MB. Free memory was 85.8MB in the beginning and 74.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,077 INFO L158 Benchmark]: TraceAbstraction took 371478.41ms. Allocated memory is still 123.7MB. Free memory was 73.8MB in the beginning and 44.7MB in the end (delta: 29.2MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,077 INFO L158 Benchmark]: Witness Printer took 108.15ms. Allocated memory is still 123.7MB. Free memory was 44.7MB in the beginning and 39.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 15:12:39,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 77.6MB. Free memory was 54.4MB in the beginning and 54.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.35ms. Allocated memory is still 123.7MB. Free memory was 99.9MB in the beginning and 88.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.92ms. Allocated memory is still 123.7MB. Free memory was 88.7MB in the beginning and 87.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.61ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 85.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.37ms. Allocated memory is still 123.7MB. Free memory was 85.8MB in the beginning and 74.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 371478.41ms. Allocated memory is still 123.7MB. Free memory was 73.8MB in the beginning and 44.7MB in the end (delta: 29.2MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. * Witness Printer took 108.15ms. Allocated memory is still 123.7MB. Free memory was 44.7MB in the beginning and 39.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_subst_2 : bv16, v_subst_1 : bv16 :: ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 4096bv32), 13bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 4096bv32), 12bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1024bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1024bv32), 11bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 128bv32), 7bv32), ~bvshl~32(~bvand~32(128bv32, ~zero_extend~32~16(v_subst_2)), 8bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_2)), 3bv32), ~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_1)), 2bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2bv32), 2bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2bv32), 1bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1bv32), 0bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1bv32), 1bv32)), 0bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 8bv32), 4bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 8bv32), 3bv32))), ~bvor~32(~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_2)), 5bv32), ~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_1)), 4bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32bv32), 5bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32bv32), 6bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 64bv32), 6bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 64bv32), 7bv32)))), ~bvor~32(~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_2)), 9bv32), ~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_1)), 8bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 512bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 512bv32), 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2048bv32), 11bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2048bv32), 12bv32)))), ~bvor~32(~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_2)), 14bv32), ~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_1)), 13bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 16384bv32), 14bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 16384bv32), 15bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32768bv32), 15bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32768bv32), 16bv32))) == ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(16bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 13bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 11bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 11bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 7bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 8bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 6bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 7bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_1)), ~bvadd~32(~i~0, 5bv32)), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 6bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(~i~0, 5bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 3bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 2bv32))), ~bvor~32(~bvor~32(~z~0, ~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_1)), ~i~0), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 1bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 1bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 2bv32))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(~i~0, 3bv32)))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 8bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 9bv32))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(~i~0, 13bv32))))))) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (forall v_subst_2 : bv16, v_subst_1 : bv16 :: ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 4096bv32), 13bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 4096bv32), 12bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1024bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1024bv32), 11bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 128bv32), 7bv32), ~bvshl~32(~bvand~32(128bv32, ~zero_extend~32~16(v_subst_2)), 8bv32)), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_2)), 3bv32), ~bvshl~32(~bvand~32(4bv32, ~zero_extend~32~16(v_subst_1)), 2bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2bv32), 2bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2bv32), 1bv32)), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 1bv32), 0bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 1bv32), 1bv32)), 0bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 8bv32), 4bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 8bv32), 3bv32))), ~bvor~32(~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_2)), 5bv32), ~bvshl~32(~bvand~32(16bv32, ~zero_extend~32~16(v_subst_1)), 4bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32bv32), 5bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32bv32), 6bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 64bv32), 6bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 64bv32), 7bv32)))), ~bvor~32(~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_2)), 9bv32), ~bvshl~32(~bvand~32(256bv32, ~zero_extend~32~16(v_subst_1)), 8bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 512bv32), 10bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 512bv32), 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 2048bv32), 11bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 2048bv32), 12bv32)))), ~bvor~32(~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_2)), 14bv32), ~bvshl~32(~bvand~32(8192bv32, ~zero_extend~32~16(v_subst_1)), 13bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 16384bv32), 14bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 16384bv32), 15bv32))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), 32768bv32), 15bv32), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), 32768bv32), 16bv32))) == ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(16bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 15bv32))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(14bv32, ~i~0))), ~bvadd~32(~i~0, 15bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 13bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 12bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 11bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 11bv32))), ~bvadd~32(~i~0, 12bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 10bv32))), ~bvadd~32(~i~0, 11bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 7bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 7bv32))), ~bvadd~32(~i~0, 8bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 6bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 6bv32))), ~bvadd~32(~i~0, 7bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_1)), ~bvadd~32(~i~0, 5bv32)), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~bvadd~32(~i~0, 5bv32)), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 6bv32))), ~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(4bv32, ~i~0))), ~bvadd~32(~i~0, 5bv32))), ~bvor~32(~bvor~32(~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 3bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 2bv32))), ~bvadd~32(~i~0, 2bv32))), ~bvor~32(~bvor~32(~z~0, ~bvor~32(~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_1)), ~i~0), ~bvshl~32(~bvand~32(~bvshl~32(1bv32, ~i~0), ~zero_extend~32~16(v_subst_2)), ~bvadd~32(~i~0, 1bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 1bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 1bv32))), ~bvadd~32(~i~0, 2bv32))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(4bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 3bv32))), ~bvadd~32(~i~0, 3bv32)))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 8bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 8bv32))), ~bvadd~32(~i~0, 9bv32)))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 10bv32)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 9bv32))), ~bvadd~32(~i~0, 9bv32))))))), ~bvor~32(~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_2), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(14bv32, ~i~0)), ~bvshl~32(~bvand~32(~zero_extend~32~16(v_subst_1), ~bvshl~32(1bv32, ~bvadd~32(~i~0, 13bv32))), ~bvadd~32(~i~0, 13bv32))))))) could not be translated * 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]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 371.3s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 55.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 205.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 56 SdHoareTripleChecker+Valid, 45.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 44.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 495 IncrementalHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 16 mSDtfsCounter, 495 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 190 SyntacticMatches, 4 SemanticMatches, 112 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 111.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 23 NumberOfFragments, 3537 HoareAnnotationTreeSize, 1 FomulaSimplifications, 401 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 4468 FormulaSimplificationTreeSizeReductionInter, 205.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 106.8s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 286 ConstructedInterpolants, 3 QuantifiedInterpolants, 30225 SizeOfPredicates, 27 NumberOfNonLiveVariables, 539 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: 49]: Loop Invariant Derived loop invariant: (((((((((((((((((((i == 15) && (z == ((((y & 16384) << 15) | ((x & 16384) << 14)) | ((((((x & 2048) << 11) | ((y & 2048) << 12)) | ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10))))) | (((x & 4096) << 12) | ((y & 4096) << 13))) | (((y & 8192) << 14) | ((x & 8192) << 13)))))) || (z == (((((y & 16384) << 15) | ((x & 16384) << 14)) | ((((((x & 2048) << 11) | ((y & 2048) << 12)) | ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10))))) | (((x & 4096) << 12) | ((y & 4096) << 13))) | (((y & 8192) << 14) | ((x & 8192) << 13)))) | (((y & 32768) << 16) | ((x & 32768) << 15))))) || ((z == ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2))))) && (i == 3))) || ((z == ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) && (4 == i))) || ((i == 9) && (z == (((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9)))))) || ((i == 10) && (z == ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10)))))) || (z == (((((y & 16384) << 15) | ((x & 16384) << 14)) | ((((((x & 2048) << 11) | ((y & 2048) << 12)) | ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10))))) | (((x & 4096) << 12) | ((y & 4096) << 13))) | (((y & 8192) << 14) | ((x & 8192) << 13)))) | (((y & 32768) << 16) | ((x & 32768) << 15))))) || ((i == 7) && (z == ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))))) || ((i == 1) && (z == (0 | (((y & 1) << 1) | ((x & 1) << 0)))))) || ((i == 11) && (z == ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10))))))) || ((i == 12) && (z == ((((x & 2048) << 11) | ((y & 2048) << 12)) | ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10)))))))) || ((14 == i) && (z == ((((((x & 2048) << 11) | ((y & 2048) << 12)) | ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10))))) | (((x & 4096) << 12) | ((y & 4096) << 13))) | (((y & 8192) << 14) | ((x & 8192) << 13)))))) || ((i == 8) && (z == ((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6))))))) || (((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) == z) && (i == 6))) || ((z == ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))) && (i == 2))) || ((i == 0) && (z == 0))) || (((((((x & 2048) << 11) | ((y & 2048) << 12)) | ((((y & 1024) << 11) | ((x & 1024) << 10)) | ((((((y & 128) << 8) | ((x & 128) << 7)) | ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) | (((y & 32) << 6) | ((x & 32) << 5))) | (((y & 64) << 7) | ((x & 64) << 6)))) | (((256 & x) << 8) | ((y & 256) << 9))) | (((x & 512) << 9) | ((y & 512) << 10))))) | (((x & 4096) << 12) | ((y & 4096) << 13))) == z) && (i == 13))) || ((((((16 & x) << 4) | ((y & 16) << 5)) | ((((y & 8) << 4) | ((x & 8) << 3)) | ((((y & 4) << 3) | ((x & 4) << 2)) | ((0 | (((y & 1) << 1) | ((x & 1) << 0))) | (((x & 2) << 1) | ((y & 2) << 2)))))) == z) && (i == 5))) RESULT: Ultimate proved your program to be correct! [2023-12-02 15:12:39,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4558a1fd-27aa-48b2-ba5f-72370dec2ead/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE