./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E --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 64bit --witnessprinter.graph.data.programhash 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:16:43,421 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:16:43,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:16:43,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:16:43,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:16:43,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:16:43,542 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:16:43,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:16:43,543 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:16:43,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:16:43,543 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:16:43,543 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:16:43,544 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:16:43,544 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:16:43,544 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:16:43,544 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:16:43,544 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:16:43,544 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:16:43,545 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:16:43,545 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:16:43,545 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:16:43,545 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:16:43,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:16:43,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:16:43,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:16:43,546 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:16:43,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:16:43,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:16:43,547 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:16:43,547 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:16:43,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:16:43,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:16:43,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:16:43,548 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:16:43,548 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:16:43,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:16:43,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:16:43,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:16:43,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:16:43,549 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:16:43,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:16:43,550 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:16:43,550 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:16:43,550 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:16:43,550 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 [2024-11-14 03:16:43,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:16:43,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:16:43,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:16:43,968 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:16:43,969 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:16:43,970 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c Unable to find full path for "g++" [2024-11-14 03:16:46,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:16:46,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:16:46,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-11-14 03:16:46,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data/782136a6b/004a2b11e14740d2a1d90abbd08d5fbf/FLAGbcd61fe09 [2024-11-14 03:16:46,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data/782136a6b/004a2b11e14740d2a1d90abbd08d5fbf [2024-11-14 03:16:46,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:16:46,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:16:46,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:16:46,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:16:46,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:16:46,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:16:46" (1/1) ... [2024-11-14 03:16:46,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b4f3c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:46, skipping insertion in model container [2024-11-14 03:16:46,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:16:46" (1/1) ... [2024-11-14 03:16:46,830 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:16:47,026 WARN L250 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_3f442d8e-e06e-4930-950d-e787db1f58d1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326] [2024-11-14 03:16:47,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:16:47,324 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:16:47,342 WARN L250 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_3f442d8e-e06e-4930-950d-e787db1f58d1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326] [2024-11-14 03:16:47,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:16:47,573 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:16:47,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47 WrapperNode [2024-11-14 03:16:47,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:16:47,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:16:47,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:16:47,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:16:47,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:47,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:47,948 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2365 [2024-11-14 03:16:47,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:16:47,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:16:47,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:16:47,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:16:47,959 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:47,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,178 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:16:48,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:16:48,180 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:16:48,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:16:48,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (1/1) ... [2024-11-14 03:16:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:16:48,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:16:48,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:16:48,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:16:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:16:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:16:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:16:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:16:48,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:16:48,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:16:48,659 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:16:48,661 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:16:53,300 INFO L? ?]: Removed 1210 outVars from TransFormulas that were not future-live. [2024-11-14 03:16:53,301 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:16:59,052 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:16:59,052 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:16:59,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:16:59 BoogieIcfgContainer [2024-11-14 03:16:59,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:16:59,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:16:59,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:16:59,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:16:59,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:16:46" (1/3) ... [2024-11-14 03:16:59,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44538cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:16:59, skipping insertion in model container [2024-11-14 03:16:59,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:16:47" (2/3) ... [2024-11-14 03:16:59,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44538cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:16:59, skipping insertion in model container [2024-11-14 03:16:59,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:16:59" (3/3) ... [2024-11-14 03:16:59,065 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-11-14 03:16:59,087 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:16:59,091 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c that has 2 procedures, 13 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:16:59,160 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:16:59,176 INFO L333 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, 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;@73972eba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:16:59,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:16:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:16:59,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:16:59,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:16:59,190 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:16:59,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:16:59,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:16:59,195 INFO L85 PathProgramCache]: Analyzing trace with hash -634270050, now seen corresponding path program 1 times [2024-11-14 03:16:59,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:16:59,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975603322] [2024-11-14 03:16:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:16:59,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:17:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:17:10,613 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:17:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:17:15,921 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:17:15,924 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:17:15,926 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:17:15,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:17:15,935 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:17:16,017 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:17:16,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:17:16 BoogieIcfgContainer [2024-11-14 03:17:16,022 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:17:16,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:17:16,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:17:16,023 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:17:16,024 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:16:59" (3/4) ... [2024-11-14 03:17:16,028 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:17:16,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:17:16,031 INFO L158 Benchmark]: Toolchain (without parser) took 29289.78ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 117.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 224.5MB. Max. memory is 16.1GB. [2024-11-14 03:17:16,031 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:17:16,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 830.31ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 78.0MB in the end (delta: 38.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-14 03:17:16,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 373.04ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 93.1MB in the end (delta: -15.0MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2024-11-14 03:17:16,033 INFO L158 Benchmark]: Boogie Preprocessor took 228.81ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 77.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:17:16,034 INFO L158 Benchmark]: RCFGBuilder took 10874.06ms. Allocated memory was 142.6MB in the beginning and 494.9MB in the end (delta: 352.3MB). Free memory was 77.6MB in the beginning and 208.1MB in the end (delta: -130.5MB). Peak memory consumption was 315.5MB. Max. memory is 16.1GB. [2024-11-14 03:17:16,034 INFO L158 Benchmark]: TraceAbstraction took 16965.93ms. Allocated memory was 494.9MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 208.1MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 566.7MB. Max. memory is 16.1GB. [2024-11-14 03:17:16,035 INFO L158 Benchmark]: Witness Printer took 6.66ms. Allocated memory is still 1.6GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 110.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:17:16,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 167.8MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 830.31ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 78.0MB in the end (delta: 38.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 373.04ms. Allocated memory is still 142.6MB. Free memory was 78.0MB in the beginning and 93.1MB in the end (delta: -15.0MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 228.81ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 77.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * RCFGBuilder took 10874.06ms. Allocated memory was 142.6MB in the beginning and 494.9MB in the end (delta: 352.3MB). Free memory was 77.6MB in the beginning and 208.1MB in the end (delta: -130.5MB). Peak memory consumption was 315.5MB. Max. memory is 16.1GB. * TraceAbstraction took 16965.93ms. Allocated memory was 494.9MB in the beginning and 1.6GB in the end (delta: 1.1GB). Free memory was 208.1MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 566.7MB. Max. memory is 16.1GB. * Witness Printer took 6.66ms. Allocated memory is still 1.6GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 110.3kB). 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: 21]: 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 bitwiseOr at line 275, overapproximation of bitwiseOr at line 263, overapproximation of bitwiseOr at line 297, overapproximation of bitwiseAnd at line 237, overapproximation of bitwiseAnd at line 268, overapproximation of bitwiseAnd at line 288, overapproximation of bitwiseAnd at line 253. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 31); [L30] const SORT_9 msb_SORT_9 = (SORT_9)1 << (31 - 1); [L32] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L33] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L38] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 4); [L39] const SORT_15 msb_SORT_15 = (SORT_15)1 << (4 - 1); [L41] const SORT_17 mask_SORT_17 = (SORT_17)-1 >> (sizeof(SORT_17) * 8 - 5); [L42] const SORT_17 msb_SORT_17 = (SORT_17)1 << (5 - 1); [L44] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 6); [L45] const SORT_19 msb_SORT_19 = (SORT_19)1 << (6 - 1); [L47] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L48] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L50] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 8); [L51] const SORT_23 msb_SORT_23 = (SORT_23)1 << (8 - 1); [L53] const SORT_25 mask_SORT_25 = (SORT_25)-1 >> (sizeof(SORT_25) * 8 - 9); [L54] const SORT_25 msb_SORT_25 = (SORT_25)1 << (9 - 1); [L56] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 10); [L57] const SORT_27 msb_SORT_27 = (SORT_27)1 << (10 - 1); [L59] const SORT_29 mask_SORT_29 = (SORT_29)-1 >> (sizeof(SORT_29) * 8 - 11); [L60] const SORT_29 msb_SORT_29 = (SORT_29)1 << (11 - 1); [L62] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 12); [L63] const SORT_31 msb_SORT_31 = (SORT_31)1 << (12 - 1); [L65] const SORT_33 mask_SORT_33 = (SORT_33)-1 >> (sizeof(SORT_33) * 8 - 13); [L66] const SORT_33 msb_SORT_33 = (SORT_33)1 << (13 - 1); [L68] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 14); [L69] const SORT_35 msb_SORT_35 = (SORT_35)1 << (14 - 1); [L71] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 15); [L72] const SORT_37 msb_SORT_37 = (SORT_37)1 << (15 - 1); [L74] const SORT_39 mask_SORT_39 = (SORT_39)-1 >> (sizeof(SORT_39) * 8 - 16); [L75] const SORT_39 msb_SORT_39 = (SORT_39)1 << (16 - 1); [L77] const SORT_41 mask_SORT_41 = (SORT_41)-1 >> (sizeof(SORT_41) * 8 - 17); [L78] const SORT_41 msb_SORT_41 = (SORT_41)1 << (17 - 1); [L80] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 18); [L81] const SORT_43 msb_SORT_43 = (SORT_43)1 << (18 - 1); [L83] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 19); [L84] const SORT_45 msb_SORT_45 = (SORT_45)1 << (19 - 1); [L86] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 20); [L87] const SORT_47 msb_SORT_47 = (SORT_47)1 << (20 - 1); [L89] const SORT_49 mask_SORT_49 = (SORT_49)-1 >> (sizeof(SORT_49) * 8 - 21); [L90] const SORT_49 msb_SORT_49 = (SORT_49)1 << (21 - 1); [L92] const SORT_51 mask_SORT_51 = (SORT_51)-1 >> (sizeof(SORT_51) * 8 - 22); [L93] const SORT_51 msb_SORT_51 = (SORT_51)1 << (22 - 1); [L95] const SORT_53 mask_SORT_53 = (SORT_53)-1 >> (sizeof(SORT_53) * 8 - 23); [L96] const SORT_53 msb_SORT_53 = (SORT_53)1 << (23 - 1); [L98] const SORT_55 mask_SORT_55 = (SORT_55)-1 >> (sizeof(SORT_55) * 8 - 24); [L99] const SORT_55 msb_SORT_55 = (SORT_55)1 << (24 - 1); [L101] const SORT_57 mask_SORT_57 = (SORT_57)-1 >> (sizeof(SORT_57) * 8 - 25); [L102] const SORT_57 msb_SORT_57 = (SORT_57)1 << (25 - 1); [L104] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 26); [L105] const SORT_59 msb_SORT_59 = (SORT_59)1 << (26 - 1); [L107] const SORT_61 mask_SORT_61 = (SORT_61)-1 >> (sizeof(SORT_61) * 8 - 27); [L108] const SORT_61 msb_SORT_61 = (SORT_61)1 << (27 - 1); [L110] const SORT_63 mask_SORT_63 = (SORT_63)-1 >> (sizeof(SORT_63) * 8 - 28); [L111] const SORT_63 msb_SORT_63 = (SORT_63)1 << (28 - 1); [L113] const SORT_65 mask_SORT_65 = (SORT_65)-1 >> (sizeof(SORT_65) * 8 - 29); [L114] const SORT_65 msb_SORT_65 = (SORT_65)1 << (29 - 1); [L116] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 30); [L117] const SORT_67 msb_SORT_67 = (SORT_67)1 << (30 - 1); [L119] const SORT_156 mask_SORT_156 = (SORT_156)-1 >> (sizeof(SORT_156) * 8 - 64); [L120] const SORT_156 msb_SORT_156 = (SORT_156)1 << (64 - 1); [L122] const SORT_157 mask_SORT_157 = (SORT_157)-1 >> (sizeof(SORT_157) * 8 - 34); [L123] const SORT_157 msb_SORT_157 = (SORT_157)1 << (34 - 1); [L125] const SORT_158 mask_SORT_158 = (SORT_158)-1 >> (sizeof(SORT_158) * 8 - 2); [L126] const SORT_158 msb_SORT_158 = (SORT_158)1 << (2 - 1); [L128] const SORT_166 mask_SORT_166 = (SORT_166)-1 >> (sizeof(SORT_166) * 8 - 35); [L129] const SORT_166 msb_SORT_166 = (SORT_166)1 << (35 - 1); [L131] const SORT_169 mask_SORT_169 = (SORT_169)-1 >> (sizeof(SORT_169) * 8 - 36); [L132] const SORT_169 msb_SORT_169 = (SORT_169)1 << (36 - 1); [L134] const SORT_172 mask_SORT_172 = (SORT_172)-1 >> (sizeof(SORT_172) * 8 - 37); [L135] const SORT_172 msb_SORT_172 = (SORT_172)1 << (37 - 1); [L137] const SORT_175 mask_SORT_175 = (SORT_175)-1 >> (sizeof(SORT_175) * 8 - 38); [L138] const SORT_175 msb_SORT_175 = (SORT_175)1 << (38 - 1); [L140] const SORT_178 mask_SORT_178 = (SORT_178)-1 >> (sizeof(SORT_178) * 8 - 39); [L141] const SORT_178 msb_SORT_178 = (SORT_178)1 << (39 - 1); [L143] const SORT_181 mask_SORT_181 = (SORT_181)-1 >> (sizeof(SORT_181) * 8 - 40); [L144] const SORT_181 msb_SORT_181 = (SORT_181)1 << (40 - 1); [L146] const SORT_184 mask_SORT_184 = (SORT_184)-1 >> (sizeof(SORT_184) * 8 - 41); [L147] const SORT_184 msb_SORT_184 = (SORT_184)1 << (41 - 1); [L149] const SORT_187 mask_SORT_187 = (SORT_187)-1 >> (sizeof(SORT_187) * 8 - 42); [L150] const SORT_187 msb_SORT_187 = (SORT_187)1 << (42 - 1); [L152] const SORT_190 mask_SORT_190 = (SORT_190)-1 >> (sizeof(SORT_190) * 8 - 43); [L153] const SORT_190 msb_SORT_190 = (SORT_190)1 << (43 - 1); [L155] const SORT_193 mask_SORT_193 = (SORT_193)-1 >> (sizeof(SORT_193) * 8 - 44); [L156] const SORT_193 msb_SORT_193 = (SORT_193)1 << (44 - 1); [L158] const SORT_196 mask_SORT_196 = (SORT_196)-1 >> (sizeof(SORT_196) * 8 - 45); [L159] const SORT_196 msb_SORT_196 = (SORT_196)1 << (45 - 1); [L161] const SORT_199 mask_SORT_199 = (SORT_199)-1 >> (sizeof(SORT_199) * 8 - 46); [L162] const SORT_199 msb_SORT_199 = (SORT_199)1 << (46 - 1); [L164] const SORT_202 mask_SORT_202 = (SORT_202)-1 >> (sizeof(SORT_202) * 8 - 47); [L165] const SORT_202 msb_SORT_202 = (SORT_202)1 << (47 - 1); [L167] const SORT_205 mask_SORT_205 = (SORT_205)-1 >> (sizeof(SORT_205) * 8 - 48); [L168] const SORT_205 msb_SORT_205 = (SORT_205)1 << (48 - 1); [L170] const SORT_208 mask_SORT_208 = (SORT_208)-1 >> (sizeof(SORT_208) * 8 - 49); [L171] const SORT_208 msb_SORT_208 = (SORT_208)1 << (49 - 1); [L173] const SORT_211 mask_SORT_211 = (SORT_211)-1 >> (sizeof(SORT_211) * 8 - 50); [L174] const SORT_211 msb_SORT_211 = (SORT_211)1 << (50 - 1); [L176] const SORT_214 mask_SORT_214 = (SORT_214)-1 >> (sizeof(SORT_214) * 8 - 51); [L177] const SORT_214 msb_SORT_214 = (SORT_214)1 << (51 - 1); [L179] const SORT_217 mask_SORT_217 = (SORT_217)-1 >> (sizeof(SORT_217) * 8 - 52); [L180] const SORT_217 msb_SORT_217 = (SORT_217)1 << (52 - 1); [L182] const SORT_220 mask_SORT_220 = (SORT_220)-1 >> (sizeof(SORT_220) * 8 - 53); [L183] const SORT_220 msb_SORT_220 = (SORT_220)1 << (53 - 1); [L185] const SORT_223 mask_SORT_223 = (SORT_223)-1 >> (sizeof(SORT_223) * 8 - 54); [L186] const SORT_223 msb_SORT_223 = (SORT_223)1 << (54 - 1); [L188] const SORT_226 mask_SORT_226 = (SORT_226)-1 >> (sizeof(SORT_226) * 8 - 55); [L189] const SORT_226 msb_SORT_226 = (SORT_226)1 << (55 - 1); [L191] const SORT_229 mask_SORT_229 = (SORT_229)-1 >> (sizeof(SORT_229) * 8 - 56); [L192] const SORT_229 msb_SORT_229 = (SORT_229)1 << (56 - 1); [L194] const SORT_232 mask_SORT_232 = (SORT_232)-1 >> (sizeof(SORT_232) * 8 - 57); [L195] const SORT_232 msb_SORT_232 = (SORT_232)1 << (57 - 1); [L197] const SORT_235 mask_SORT_235 = (SORT_235)-1 >> (sizeof(SORT_235) * 8 - 58); [L198] const SORT_235 msb_SORT_235 = (SORT_235)1 << (58 - 1); [L200] const SORT_238 mask_SORT_238 = (SORT_238)-1 >> (sizeof(SORT_238) * 8 - 59); [L201] const SORT_238 msb_SORT_238 = (SORT_238)1 << (59 - 1); [L203] const SORT_241 mask_SORT_241 = (SORT_241)-1 >> (sizeof(SORT_241) * 8 - 60); [L204] const SORT_241 msb_SORT_241 = (SORT_241)1 << (60 - 1); [L206] const SORT_244 mask_SORT_244 = (SORT_244)-1 >> (sizeof(SORT_244) * 8 - 61); [L207] const SORT_244 msb_SORT_244 = (SORT_244)1 << (61 - 1); [L209] const SORT_247 mask_SORT_247 = (SORT_247)-1 >> (sizeof(SORT_247) * 8 - 62); [L210] const SORT_247 msb_SORT_247 = (SORT_247)1 << (62 - 1); [L212] const SORT_250 mask_SORT_250 = (SORT_250)-1 >> (sizeof(SORT_250) * 8 - 63); [L213] const SORT_250 msb_SORT_250 = (SORT_250)1 << (63 - 1); [L215] const SORT_1 var_7 = 0; [L216] const SORT_1 var_8 = 1; [L217] const SORT_9 var_10 = 0; [L218] const SORT_12 var_13 = 4; [L219] const SORT_15 var_71 = 8; [L220] const SORT_12 var_117 = 5; [L221] const SORT_39 var_119 = 0; [L222] const SORT_11 var_153 = 64; [L223] const SORT_158 var_159 = 1; [L224] const SORT_23 var_255 = 127; [L225] const SORT_11 var_288 = 1; [L226] const SORT_11 var_290 = 127; [L227] const SORT_12 var_371 = 6; [L228] const SORT_15 var_375 = 9; [L229] const SORT_21 var_393 = 64; [L230] const SORT_12 var_406 = 0; [L231] const SORT_15 var_409 = 0; [L233] SORT_1 input_2; [L234] SORT_1 input_3; [L235] SORT_1 input_4; [L237] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L237] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L238] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L238] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L239] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L239] SORT_11 state_103 = __VERIFIER_nondet_uint() & mask_SORT_11; [L240] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L240] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L241] EXPR __VERIFIER_nondet_ushort() & mask_SORT_39 [L241] SORT_39 state_120 = __VERIFIER_nondet_ushort() & mask_SORT_39; [L242] EXPR __VERIFIER_nondet_uchar() & mask_SORT_15 [L242] SORT_15 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L243] EXPR __VERIFIER_nondet_uchar() & mask_SORT_15 [L243] SORT_15 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_15; [L244] EXPR __VERIFIER_nondet_uint() & mask_SORT_11 [L244] SORT_11 state_147 = __VERIFIER_nondet_uint() & mask_SORT_11; [L245] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L245] SORT_1 state_259 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L247] SORT_39 init_121_arg_1 = var_119; [L248] state_120 = init_121_arg_1 VAL [mask_SORT_11=-1, mask_SORT_12=7, mask_SORT_157=17179869183, mask_SORT_158=3, mask_SORT_15=15, mask_SORT_166=34359738367, mask_SORT_169=68719476735, mask_SORT_172=137438953471, mask_SORT_175=274877906943, mask_SORT_178=549755813887, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_1=1, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=131071, mask_SORT_43=262143, mask_SORT_45=524287, mask_SORT_47=1048575, mask_SORT_49=2097151, mask_SORT_51=4194303, mask_SORT_53=8388607, mask_SORT_55=16777215, mask_SORT_57=33554431, mask_SORT_59=67108863, mask_SORT_61=134217727, mask_SORT_63=268435455, mask_SORT_65=536870911, mask_SORT_67=1073741823, mask_SORT_9=2147483647, msb_SORT_11=2147483648, msb_SORT_158=2, msb_SORT_23=128, state_103=0, state_105=0, state_120=0, state_140=0, state_143=0, state_147=1, state_5=1, state_72=1, var_10=0, var_117=5, var_13=4, var_159=1, var_255=127, var_288=1, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_71=8, var_7=0, var_8=1] [L251] input_2 = __VERIFIER_nondet_uchar() [L252] input_3 = __VERIFIER_nondet_uchar() [L253] EXPR input_3 & mask_SORT_1 [L253] input_3 = input_3 & mask_SORT_1 [L254] input_4 = __VERIFIER_nondet_uchar() [L255] EXPR input_4 & mask_SORT_1 [L255] input_4 = input_4 & mask_SORT_1 [L257] SORT_1 var_128_arg_0 = state_5; [L258] SORT_1 var_128 = ~var_128_arg_0; [L259] SORT_1 var_129_arg_0 = var_128; [L260] SORT_1 var_129 = ~var_129_arg_0; [L261] SORT_1 var_130_arg_0 = state_5; [L262] SORT_1 var_130_arg_1 = var_129; [L263] EXPR var_130_arg_0 | var_130_arg_1 [L263] SORT_1 var_130 = var_130_arg_0 | var_130_arg_1; [L264] EXPR var_130 & mask_SORT_1 [L264] var_130 = var_130 & mask_SORT_1 [L265] SORT_1 constr_131_arg_0 = var_130; VAL [constr_131_arg_0=1, input_3=0, input_4=1, mask_SORT_11=-1, mask_SORT_12=7, mask_SORT_157=17179869183, mask_SORT_158=3, mask_SORT_15=15, mask_SORT_166=34359738367, mask_SORT_169=68719476735, mask_SORT_172=137438953471, mask_SORT_175=274877906943, mask_SORT_178=549755813887, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_1=1, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=131071, mask_SORT_43=262143, mask_SORT_45=524287, mask_SORT_47=1048575, mask_SORT_49=2097151, mask_SORT_51=4194303, mask_SORT_53=8388607, mask_SORT_55=16777215, mask_SORT_57=33554431, mask_SORT_59=67108863, mask_SORT_61=134217727, mask_SORT_63=268435455, mask_SORT_65=536870911, mask_SORT_67=1073741823, mask_SORT_9=2147483647, msb_SORT_11=2147483648, msb_SORT_158=2, msb_SORT_23=128, state_103=0, state_105=0, state_120=0, state_140=0, state_143=0, state_147=1, state_72=1, var_10=0, var_117=5, var_13=4, var_159=1, var_255=127, var_288=1, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_71=8, var_7=0, var_8=1] [L266] CALL assume_abort_if_not(constr_131_arg_0) VAL [\old(cond)=1] [L22] COND FALSE !(!cond) [L266] RET assume_abort_if_not(constr_131_arg_0) VAL [constr_131_arg_0=1, input_3=0, input_4=1, mask_SORT_11=-1, mask_SORT_12=7, mask_SORT_157=17179869183, mask_SORT_158=3, mask_SORT_15=15, mask_SORT_166=34359738367, mask_SORT_169=68719476735, mask_SORT_172=137438953471, mask_SORT_175=274877906943, mask_SORT_178=549755813887, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_1=1, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=131071, mask_SORT_43=262143, mask_SORT_45=524287, mask_SORT_47=1048575, mask_SORT_49=2097151, mask_SORT_51=4194303, mask_SORT_53=8388607, mask_SORT_55=16777215, mask_SORT_57=33554431, mask_SORT_59=67108863, mask_SORT_61=134217727, mask_SORT_63=268435455, mask_SORT_65=536870911, mask_SORT_67=1073741823, mask_SORT_9=2147483647, msb_SORT_11=2147483648, msb_SORT_158=2, msb_SORT_23=128, state_103=0, state_105=0, state_120=0, state_140=0, state_143=0, state_147=1, state_72=1, var_10=0, var_117=5, var_13=4, var_159=1, var_255=127, var_288=1, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_71=8, var_7=0, var_8=1] [L267] SORT_1 var_132_arg_0 = var_8; [L268] EXPR var_132_arg_0 & mask_SORT_1 [L268] var_132_arg_0 = var_132_arg_0 & mask_SORT_1 [L269] SORT_39 var_132 = var_132_arg_0; [L270] SORT_39 var_133_arg_0 = state_120; [L271] SORT_39 var_133_arg_1 = var_132; [L272] SORT_1 var_133 = var_133_arg_0 <= var_133_arg_1; [L273] SORT_1 var_134_arg_0 = input_4; [L274] SORT_1 var_134_arg_1 = var_133; [L275] EXPR var_134_arg_0 ^ var_134_arg_1 [L275] SORT_1 var_134 = var_134_arg_0 ^ var_134_arg_1; [L276] SORT_1 var_135_arg_0 = var_134; [L277] SORT_1 var_135 = ~var_135_arg_0; [L278] SORT_1 var_136_arg_0 = var_134; [L279] SORT_1 var_136 = ~var_136_arg_0; [L280] SORT_1 var_137_arg_0 = var_135; [L281] SORT_1 var_137_arg_1 = var_136; [L282] EXPR var_137_arg_0 | var_137_arg_1 [L282] SORT_1 var_137 = var_137_arg_0 | var_137_arg_1; [L283] EXPR var_137 & mask_SORT_1 [L283] var_137 = var_137 & mask_SORT_1 [L284] SORT_1 constr_138_arg_0 = var_137; VAL [constr_131_arg_0=1, constr_138_arg_0=1, input_3=0, input_4=1, mask_SORT_11=-1, mask_SORT_12=7, mask_SORT_157=17179869183, mask_SORT_158=3, mask_SORT_15=15, mask_SORT_166=34359738367, mask_SORT_169=68719476735, mask_SORT_172=137438953471, mask_SORT_175=274877906943, mask_SORT_178=549755813887, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_1=1, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=131071, mask_SORT_43=262143, mask_SORT_45=524287, mask_SORT_47=1048575, mask_SORT_49=2097151, mask_SORT_51=4194303, mask_SORT_53=8388607, mask_SORT_55=16777215, mask_SORT_57=33554431, mask_SORT_59=67108863, mask_SORT_61=134217727, mask_SORT_63=268435455, mask_SORT_65=536870911, mask_SORT_67=1073741823, mask_SORT_9=2147483647, msb_SORT_11=2147483648, msb_SORT_158=2, msb_SORT_23=128, state_103=0, state_105=0, state_120=0, state_140=0, state_143=0, state_147=1, state_72=1, var_10=0, var_117=5, var_13=4, var_159=1, var_255=127, var_288=1, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_71=8, var_7=0, var_8=1] [L285] CALL assume_abort_if_not(constr_138_arg_0) VAL [\old(cond)=1] [L22] COND FALSE !(!cond) [L285] RET assume_abort_if_not(constr_138_arg_0) VAL [constr_131_arg_0=1, constr_138_arg_0=1, input_3=0, input_4=1, mask_SORT_11=-1, mask_SORT_12=7, mask_SORT_157=17179869183, mask_SORT_158=3, mask_SORT_15=15, mask_SORT_166=34359738367, mask_SORT_169=68719476735, mask_SORT_172=137438953471, mask_SORT_175=274877906943, mask_SORT_178=549755813887, mask_SORT_17=31, mask_SORT_19=63, mask_SORT_1=1, mask_SORT_21=127, mask_SORT_23=255, mask_SORT_25=511, mask_SORT_27=1023, mask_SORT_29=2047, mask_SORT_31=4095, mask_SORT_33=8191, mask_SORT_35=16383, mask_SORT_37=32767, mask_SORT_39=65535, mask_SORT_41=131071, mask_SORT_43=262143, mask_SORT_45=524287, mask_SORT_47=1048575, mask_SORT_49=2097151, mask_SORT_51=4194303, mask_SORT_53=8388607, mask_SORT_55=16777215, mask_SORT_57=33554431, mask_SORT_59=67108863, mask_SORT_61=134217727, mask_SORT_63=268435455, mask_SORT_65=536870911, mask_SORT_67=1073741823, mask_SORT_9=2147483647, msb_SORT_11=2147483648, msb_SORT_158=2, msb_SORT_23=128, state_103=0, state_105=0, state_120=0, state_140=0, state_143=0, state_147=1, state_72=1, var_10=0, var_117=5, var_13=4, var_159=1, var_255=127, var_288=1, var_371=6, var_375=9, var_393=64, var_406=0, var_409=0, var_71=8, var_7=0, var_8=1] [L287] SORT_12 var_118_arg_0 = var_117; [L288] EXPR var_118_arg_0 & mask_SORT_12 [L288] var_118_arg_0 = var_118_arg_0 & mask_SORT_12 [L289] SORT_39 var_118 = var_118_arg_0; [L290] SORT_39 var_122_arg_0 = var_118; [L291] SORT_39 var_122_arg_1 = state_120; [L292] SORT_1 var_122 = var_122_arg_0 < var_122_arg_1; [L293] SORT_1 var_14_arg_0 = input_3; [L294] SORT_1 var_14 = ~var_14_arg_0; [L295] SORT_1 var_16_arg_0 = var_14; [L296] SORT_12 var_16_arg_1 = var_13; [L297] EXPR ((SORT_15)var_16_arg_0 << 3) | var_16_arg_1 [L297] SORT_15 var_16 = ((SORT_15)var_16_arg_0 << 3) | var_16_arg_1; [L298] EXPR var_16 & mask_SORT_15 [L298] var_16 = var_16 & mask_SORT_15 [L299] SORT_1 var_18_arg_0 = input_3; [L300] SORT_15 var_18_arg_1 = var_16; [L301] EXPR ((SORT_17)var_18_arg_0 << 4) | var_18_arg_1 [L301] SORT_17 var_18 = ((SORT_17)var_18_arg_0 << 4) | var_18_arg_1; [L302] EXPR var_18 & mask_SORT_17 [L302] var_18 = var_18 & mask_SORT_17 [L303] SORT_1 var_20_arg_0 = input_3; [L304] SORT_17 var_20_arg_1 = var_18; [L305] EXPR ((SORT_19)var_20_arg_0 << 5) | var_20_arg_1 [L305] SORT_19 var_20 = ((SORT_19)var_20_arg_0 << 5) | var_20_arg_1; [L306] EXPR var_20 & mask_SORT_19 [L306] var_20 = var_20 & mask_SORT_19 [L307] SORT_1 var_22_arg_0 = input_3; [L308] SORT_19 var_22_arg_1 = var_20; [L309] EXPR ((SORT_21)var_22_arg_0 << 6) | var_22_arg_1 [L309] SORT_21 var_22 = ((SORT_21)var_22_arg_0 << 6) | var_22_arg_1; [L310] EXPR var_22 & mask_SORT_21 [L310] var_22 = var_22 & mask_SORT_21 [L311] SORT_1 var_24_arg_0 = input_3; [L312] SORT_21 var_24_arg_1 = var_22; [L313] EXPR ((SORT_23)var_24_arg_0 << 7) | var_24_arg_1 [L313] SORT_23 var_24 = ((SORT_23)var_24_arg_0 << 7) | var_24_arg_1; [L314] EXPR var_24 & mask_SORT_23 [L314] var_24 = var_24 & mask_SORT_23 [L315] SORT_1 var_26_arg_0 = input_3; [L316] SORT_23 var_26_arg_1 = var_24; [L317] EXPR ((SORT_25)var_26_arg_0 << 8) | var_26_arg_1 [L317] SORT_25 var_26 = ((SORT_25)var_26_arg_0 << 8) | var_26_arg_1; [L318] EXPR var_26 & mask_SORT_25 [L318] var_26 = var_26 & mask_SORT_25 [L319] SORT_1 var_28_arg_0 = var_14; [L320] SORT_25 var_28_arg_1 = var_26; [L321] EXPR ((SORT_27)var_28_arg_0 << 9) | var_28_arg_1 [L321] SORT_27 var_28 = ((SORT_27)var_28_arg_0 << 9) | var_28_arg_1; [L322] EXPR var_28 & mask_SORT_27 [L322] var_28 = var_28 & mask_SORT_27 [L323] SORT_1 var_30_arg_0 = var_14; [L324] SORT_27 var_30_arg_1 = var_28; [L325] EXPR ((SORT_29)var_30_arg_0 << 10) | var_30_arg_1 [L325] SORT_29 var_30 = ((SORT_29)var_30_arg_0 << 10) | var_30_arg_1; [L326] EXPR var_30 & mask_SORT_29 [L326] var_30 = var_30 & mask_SORT_29 [L327] SORT_1 var_32_arg_0 = var_14; [L328] SORT_29 var_32_arg_1 = var_30; [L329] EXPR ((SORT_31)var_32_arg_0 << 11) | var_32_arg_1 [L329] SORT_31 var_32 = ((SORT_31)var_32_arg_0 << 11) | var_32_arg_1; [L330] EXPR var_32 & mask_SORT_31 [L330] var_32 = var_32 & mask_SORT_31 [L331] SORT_1 var_34_arg_0 = var_14; [L332] SORT_31 var_34_arg_1 = var_32; [L333] EXPR ((SORT_33)var_34_arg_0 << 12) | var_34_arg_1 [L333] SORT_33 var_34 = ((SORT_33)var_34_arg_0 << 12) | var_34_arg_1; [L334] EXPR var_34 & mask_SORT_33 [L334] var_34 = var_34 & mask_SORT_33 [L335] SORT_1 var_36_arg_0 = var_14; [L336] SORT_33 var_36_arg_1 = var_34; [L337] EXPR ((SORT_35)var_36_arg_0 << 13) | var_36_arg_1 [L337] SORT_35 var_36 = ((SORT_35)var_36_arg_0 << 13) | var_36_arg_1; [L338] EXPR var_36 & mask_SORT_35 [L338] var_36 = var_36 & mask_SORT_35 [L339] SORT_1 var_38_arg_0 = var_14; [L340] SORT_35 var_38_arg_1 = var_36; [L341] EXPR ((SORT_37)var_38_arg_0 << 14) | var_38_arg_1 [L341] SORT_37 var_38 = ((SORT_37)var_38_arg_0 << 14) | var_38_arg_1; [L342] EXPR var_38 & mask_SORT_37 [L342] var_38 = var_38 & mask_SORT_37 [L343] SORT_1 var_40_arg_0 = var_14; [L344] SORT_37 var_40_arg_1 = var_38; [L345] EXPR ((SORT_39)var_40_arg_0 << 15) | var_40_arg_1 [L345] SORT_39 var_40 = ((SORT_39)var_40_arg_0 << 15) | var_40_arg_1; [L346] EXPR var_40 & mask_SORT_39 [L346] var_40 = var_40 & mask_SORT_39 [L347] SORT_1 var_42_arg_0 = var_14; [L348] SORT_39 var_42_arg_1 = var_40; [L349] EXPR ((SORT_41)var_42_arg_0 << 16) | var_42_arg_1 [L349] SORT_41 var_42 = ((SORT_41)var_42_arg_0 << 16) | var_42_arg_1; [L350] EXPR var_42 & mask_SORT_41 [L350] var_42 = var_42 & mask_SORT_41 [L351] SORT_1 var_44_arg_0 = var_14; [L352] SORT_41 var_44_arg_1 = var_42; [L353] EXPR ((SORT_43)var_44_arg_0 << 17) | var_44_arg_1 [L353] SORT_43 var_44 = ((SORT_43)var_44_arg_0 << 17) | var_44_arg_1; [L354] EXPR var_44 & mask_SORT_43 [L354] var_44 = var_44 & mask_SORT_43 [L355] SORT_1 var_46_arg_0 = var_14; [L356] SORT_43 var_46_arg_1 = var_44; [L357] EXPR ((SORT_45)var_46_arg_0 << 18) | var_46_arg_1 [L357] SORT_45 var_46 = ((SORT_45)var_46_arg_0 << 18) | var_46_arg_1; [L358] EXPR var_46 & mask_SORT_45 [L358] var_46 = var_46 & mask_SORT_45 [L359] SORT_1 var_48_arg_0 = var_14; [L360] SORT_45 var_48_arg_1 = var_46; [L361] EXPR ((SORT_47)var_48_arg_0 << 19) | var_48_arg_1 [L361] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 19) | var_48_arg_1; [L362] EXPR var_48 & mask_SORT_47 [L362] var_48 = var_48 & mask_SORT_47 [L363] SORT_1 var_50_arg_0 = var_14; [L364] SORT_47 var_50_arg_1 = var_48; [L365] EXPR ((SORT_49)var_50_arg_0 << 20) | var_50_arg_1 [L365] SORT_49 var_50 = ((SORT_49)var_50_arg_0 << 20) | var_50_arg_1; [L366] EXPR var_50 & mask_SORT_49 [L366] var_50 = var_50 & mask_SORT_49 [L367] SORT_1 var_52_arg_0 = var_14; [L368] SORT_49 var_52_arg_1 = var_50; [L369] EXPR ((SORT_51)var_52_arg_0 << 21) | var_52_arg_1 [L369] SORT_51 var_52 = ((SORT_51)var_52_arg_0 << 21) | var_52_arg_1; [L370] EXPR var_52 & mask_SORT_51 [L370] var_52 = var_52 & mask_SORT_51 [L371] SORT_1 var_54_arg_0 = var_14; [L372] SORT_51 var_54_arg_1 = var_52; [L373] EXPR ((SORT_53)var_54_arg_0 << 22) | var_54_arg_1 [L373] SORT_53 var_54 = ((SORT_53)var_54_arg_0 << 22) | var_54_arg_1; [L374] EXPR var_54 & mask_SORT_53 [L374] var_54 = var_54 & mask_SORT_53 [L375] SORT_1 var_56_arg_0 = var_14; [L376] SORT_53 var_56_arg_1 = var_54; [L377] EXPR ((SORT_55)var_56_arg_0 << 23) | var_56_arg_1 [L377] SORT_55 var_56 = ((SORT_55)var_56_arg_0 << 23) | var_56_arg_1; [L378] EXPR var_56 & mask_SORT_55 [L378] var_56 = var_56 & mask_SORT_55 [L379] SORT_1 var_58_arg_0 = var_14; [L380] SORT_55 var_58_arg_1 = var_56; [L381] EXPR ((SORT_57)var_58_arg_0 << 24) | var_58_arg_1 [L381] SORT_57 var_58 = ((SORT_57)var_58_arg_0 << 24) | var_58_arg_1; [L382] EXPR var_58 & mask_SORT_57 [L382] var_58 = var_58 & mask_SORT_57 [L383] SORT_1 var_60_arg_0 = var_14; [L384] SORT_57 var_60_arg_1 = var_58; [L385] EXPR ((SORT_59)var_60_arg_0 << 25) | var_60_arg_1 [L385] SORT_59 var_60 = ((SORT_59)var_60_arg_0 << 25) | var_60_arg_1; [L386] EXPR var_60 & mask_SORT_59 [L386] var_60 = var_60 & mask_SORT_59 [L387] SORT_1 var_62_arg_0 = var_14; [L388] SORT_59 var_62_arg_1 = var_60; [L389] EXPR ((SORT_61)var_62_arg_0 << 26) | var_62_arg_1 [L389] SORT_61 var_62 = ((SORT_61)var_62_arg_0 << 26) | var_62_arg_1; [L390] EXPR var_62 & mask_SORT_61 [L390] var_62 = var_62 & mask_SORT_61 [L391] SORT_1 var_64_arg_0 = var_14; [L392] SORT_61 var_64_arg_1 = var_62; [L393] EXPR ((SORT_63)var_64_arg_0 << 27) | var_64_arg_1 [L393] SORT_63 var_64 = ((SORT_63)var_64_arg_0 << 27) | var_64_arg_1; [L394] EXPR var_64 & mask_SORT_63 [L394] var_64 = var_64 & mask_SORT_63 [L395] SORT_1 var_66_arg_0 = var_14; [L396] SORT_63 var_66_arg_1 = var_64; [L397] EXPR ((SORT_65)var_66_arg_0 << 28) | var_66_arg_1 [L397] SORT_65 var_66 = ((SORT_65)var_66_arg_0 << 28) | var_66_arg_1; [L398] EXPR var_66 & mask_SORT_65 [L398] var_66 = var_66 & mask_SORT_65 [L399] SORT_1 var_68_arg_0 = var_14; [L400] SORT_65 var_68_arg_1 = var_66; [L401] EXPR ((SORT_67)var_68_arg_0 << 29) | var_68_arg_1 [L401] SORT_67 var_68 = ((SORT_67)var_68_arg_0 << 29) | var_68_arg_1; [L402] EXPR var_68 & mask_SORT_67 [L402] var_68 = var_68 & mask_SORT_67 [L403] SORT_1 var_69_arg_0 = var_14; [L404] SORT_67 var_69_arg_1 = var_68; [L405] EXPR ((SORT_9)var_69_arg_0 << 30) | var_69_arg_1 [L405] SORT_9 var_69 = ((SORT_9)var_69_arg_0 << 30) | var_69_arg_1; [L406] EXPR var_69 & mask_SORT_9 [L406] var_69 = var_69 & mask_SORT_9 [L407] SORT_1 var_70_arg_0 = var_14; [L408] SORT_9 var_70_arg_1 = var_69; [L409] EXPR ((SORT_11)var_70_arg_0 << 31) | var_70_arg_1 [L409] SORT_11 var_70 = ((SORT_11)var_70_arg_0 << 31) | var_70_arg_1; [L410] SORT_1 var_73_arg_0 = state_72; [L411] SORT_1 var_73 = ~var_73_arg_0; [L412] SORT_1 var_74_arg_0 = var_73; [L413] SORT_15 var_74_arg_1 = var_71; [L414] EXPR ((SORT_17)var_74_arg_0 << 4) | var_74_arg_1 [L414] SORT_17 var_74 = ((SORT_17)var_74_arg_0 << 4) | var_74_arg_1; [L415] EXPR var_74 & mask_SORT_17 [L415] var_74 = var_74 & mask_SORT_17 [L416] SORT_1 var_75_arg_0 = var_73; [L417] SORT_17 var_75_arg_1 = var_74; [L418] EXPR ((SORT_19)var_75_arg_0 << 5) | var_75_arg_1 [L418] SORT_19 var_75 = ((SORT_19)var_75_arg_0 << 5) | var_75_arg_1; [L419] EXPR var_75 & mask_SORT_19 [L419] var_75 = var_75 & mask_SORT_19 [L420] SORT_1 var_76_arg_0 = state_72; [L421] SORT_19 var_76_arg_1 = var_75; [L422] EXPR ((SORT_21)var_76_arg_0 << 6) | var_76_arg_1 [L422] SORT_21 var_76 = ((SORT_21)var_76_arg_0 << 6) | var_76_arg_1; [L423] EXPR var_76 & mask_SORT_21 [L423] var_76 = var_76 & mask_SORT_21 [L424] SORT_1 var_77_arg_0 = state_72; [L425] SORT_21 var_77_arg_1 = var_76; [L426] EXPR ((SORT_23)var_77_arg_0 << 7) | var_77_arg_1 [L426] SORT_23 var_77 = ((SORT_23)var_77_arg_0 << 7) | var_77_arg_1; [L427] EXPR var_77 & mask_SORT_23 [L427] var_77 = var_77 & mask_SORT_23 [L428] SORT_1 var_78_arg_0 = var_73; [L429] SORT_23 var_78_arg_1 = var_77; [L430] EXPR ((SORT_25)var_78_arg_0 << 8) | var_78_arg_1 [L430] SORT_25 var_78 = ((SORT_25)var_78_arg_0 << 8) | var_78_arg_1; [L431] EXPR var_78 & mask_SORT_25 [L431] var_78 = var_78 & mask_SORT_25 [L432] SORT_1 var_79_arg_0 = var_73; [L433] SORT_25 var_79_arg_1 = var_78; [L434] EXPR ((SORT_27)var_79_arg_0 << 9) | var_79_arg_1 [L434] SORT_27 var_79 = ((SORT_27)var_79_arg_0 << 9) | var_79_arg_1; [L435] EXPR var_79 & mask_SORT_27 [L435] var_79 = var_79 & mask_SORT_27 [L436] SORT_1 var_80_arg_0 = var_73; [L437] SORT_27 var_80_arg_1 = var_79; [L438] EXPR ((SORT_29)var_80_arg_0 << 10) | var_80_arg_1 [L438] SORT_29 var_80 = ((SORT_29)var_80_arg_0 << 10) | var_80_arg_1; [L439] EXPR var_80 & mask_SORT_29 [L439] var_80 = var_80 & mask_SORT_29 [L440] SORT_1 var_81_arg_0 = var_73; [L441] SORT_29 var_81_arg_1 = var_80; [L442] EXPR ((SORT_31)var_81_arg_0 << 11) | var_81_arg_1 [L442] SORT_31 var_81 = ((SORT_31)var_81_arg_0 << 11) | var_81_arg_1; [L443] EXPR var_81 & mask_SORT_31 [L443] var_81 = var_81 & mask_SORT_31 [L444] SORT_1 var_82_arg_0 = var_73; [L445] SORT_31 var_82_arg_1 = var_81; [L446] EXPR ((SORT_33)var_82_arg_0 << 12) | var_82_arg_1 [L446] SORT_33 var_82 = ((SORT_33)var_82_arg_0 << 12) | var_82_arg_1; [L447] EXPR var_82 & mask_SORT_33 [L447] var_82 = var_82 & mask_SORT_33 [L448] SORT_1 var_83_arg_0 = var_73; [L449] SORT_33 var_83_arg_1 = var_82; [L450] EXPR ((SORT_35)var_83_arg_0 << 13) | var_83_arg_1 [L450] SORT_35 var_83 = ((SORT_35)var_83_arg_0 << 13) | var_83_arg_1; [L451] EXPR var_83 & mask_SORT_35 [L451] var_83 = var_83 & mask_SORT_35 [L452] SORT_1 var_84_arg_0 = var_73; [L453] SORT_35 var_84_arg_1 = var_83; [L454] EXPR ((SORT_37)var_84_arg_0 << 14) | var_84_arg_1 [L454] SORT_37 var_84 = ((SORT_37)var_84_arg_0 << 14) | var_84_arg_1; [L455] EXPR var_84 & mask_SORT_37 [L455] var_84 = var_84 & mask_SORT_37 [L456] SORT_1 var_85_arg_0 = var_73; [L457] SORT_37 var_85_arg_1 = var_84; [L458] EXPR ((SORT_39)var_85_arg_0 << 15) | var_85_arg_1 [L458] SORT_39 var_85 = ((SORT_39)var_85_arg_0 << 15) | var_85_arg_1; [L459] EXPR var_85 & mask_SORT_39 [L459] var_85 = var_85 & mask_SORT_39 [L460] SORT_1 var_86_arg_0 = var_73; [L461] SORT_39 var_86_arg_1 = var_85; [L462] EXPR ((SORT_41)var_86_arg_0 << 16) | var_86_arg_1 [L462] SORT_41 var_86 = ((SORT_41)var_86_arg_0 << 16) | var_86_arg_1; [L463] EXPR var_86 & mask_SORT_41 [L463] var_86 = var_86 & mask_SORT_41 [L464] SORT_1 var_87_arg_0 = var_73; [L465] SORT_41 var_87_arg_1 = var_86; [L466] EXPR ((SORT_43)var_87_arg_0 << 17) | var_87_arg_1 [L466] SORT_43 var_87 = ((SORT_43)var_87_arg_0 << 17) | var_87_arg_1; [L467] EXPR var_87 & mask_SORT_43 [L467] var_87 = var_87 & mask_SORT_43 [L468] SORT_1 var_88_arg_0 = var_73; [L469] SORT_43 var_88_arg_1 = var_87; [L470] EXPR ((SORT_45)var_88_arg_0 << 18) | var_88_arg_1 [L470] SORT_45 var_88 = ((SORT_45)var_88_arg_0 << 18) | var_88_arg_1; [L471] EXPR var_88 & mask_SORT_45 [L471] var_88 = var_88 & mask_SORT_45 [L472] SORT_1 var_89_arg_0 = var_73; [L473] SORT_45 var_89_arg_1 = var_88; [L474] EXPR ((SORT_47)var_89_arg_0 << 19) | var_89_arg_1 [L474] SORT_47 var_89 = ((SORT_47)var_89_arg_0 << 19) | var_89_arg_1; [L475] EXPR var_89 & mask_SORT_47 [L475] var_89 = var_89 & mask_SORT_47 [L476] SORT_1 var_90_arg_0 = var_73; [L477] SORT_47 var_90_arg_1 = var_89; [L478] EXPR ((SORT_49)var_90_arg_0 << 20) | var_90_arg_1 [L478] SORT_49 var_90 = ((SORT_49)var_90_arg_0 << 20) | var_90_arg_1; [L479] EXPR var_90 & mask_SORT_49 [L479] var_90 = var_90 & mask_SORT_49 [L480] SORT_1 var_91_arg_0 = var_73; [L481] SORT_49 var_91_arg_1 = var_90; [L482] EXPR ((SORT_51)var_91_arg_0 << 21) | var_91_arg_1 [L482] SORT_51 var_91 = ((SORT_51)var_91_arg_0 << 21) | var_91_arg_1; [L483] EXPR var_91 & mask_SORT_51 [L483] var_91 = var_91 & mask_SORT_51 [L484] SORT_1 var_92_arg_0 = var_73; [L485] SORT_51 var_92_arg_1 = var_91; [L486] EXPR ((SORT_53)var_92_arg_0 << 22) | var_92_arg_1 [L486] SORT_53 var_92 = ((SORT_53)var_92_arg_0 << 22) | var_92_arg_1; [L487] EXPR var_92 & mask_SORT_53 [L487] var_92 = var_92 & mask_SORT_53 [L488] SORT_1 var_93_arg_0 = var_73; [L489] SORT_53 var_93_arg_1 = var_92; [L490] EXPR ((SORT_55)var_93_arg_0 << 23) | var_93_arg_1 [L490] SORT_55 var_93 = ((SORT_55)var_93_arg_0 << 23) | var_93_arg_1; [L491] EXPR var_93 & mask_SORT_55 [L491] var_93 = var_93 & mask_SORT_55 [L492] SORT_1 var_94_arg_0 = var_73; [L493] SORT_55 var_94_arg_1 = var_93; [L494] EXPR ((SORT_57)var_94_arg_0 << 24) | var_94_arg_1 [L494] SORT_57 var_94 = ((SORT_57)var_94_arg_0 << 24) | var_94_arg_1; [L495] EXPR var_94 & mask_SORT_57 [L495] var_94 = var_94 & mask_SORT_57 [L496] SORT_1 var_95_arg_0 = var_73; [L497] SORT_57 var_95_arg_1 = var_94; [L498] EXPR ((SORT_59)var_95_arg_0 << 25) | var_95_arg_1 [L498] SORT_59 var_95 = ((SORT_59)var_95_arg_0 << 25) | var_95_arg_1; [L499] EXPR var_95 & mask_SORT_59 [L499] var_95 = var_95 & mask_SORT_59 [L500] SORT_1 var_96_arg_0 = var_73; [L501] SORT_59 var_96_arg_1 = var_95; [L502] EXPR ((SORT_61)var_96_arg_0 << 26) | var_96_arg_1 [L502] SORT_61 var_96 = ((SORT_61)var_96_arg_0 << 26) | var_96_arg_1; [L503] EXPR var_96 & mask_SORT_61 [L503] var_96 = var_96 & mask_SORT_61 [L504] SORT_1 var_97_arg_0 = var_73; [L505] SORT_61 var_97_arg_1 = var_96; [L506] EXPR ((SORT_63)var_97_arg_0 << 27) | var_97_arg_1 [L506] SORT_63 var_97 = ((SORT_63)var_97_arg_0 << 27) | var_97_arg_1; [L507] EXPR var_97 & mask_SORT_63 [L507] var_97 = var_97 & mask_SORT_63 [L508] SORT_1 var_98_arg_0 = var_73; [L509] SORT_63 var_98_arg_1 = var_97; [L510] EXPR ((SORT_65)var_98_arg_0 << 28) | var_98_arg_1 [L510] SORT_65 var_98 = ((SORT_65)var_98_arg_0 << 28) | var_98_arg_1; [L511] EXPR var_98 & mask_SORT_65 [L511] var_98 = var_98 & mask_SORT_65 [L512] SORT_1 var_99_arg_0 = var_73; [L513] SORT_65 var_99_arg_1 = var_98; [L514] EXPR ((SORT_67)var_99_arg_0 << 29) | var_99_arg_1 [L514] SORT_67 var_99 = ((SORT_67)var_99_arg_0 << 29) | var_99_arg_1; [L515] EXPR var_99 & mask_SORT_67 [L515] var_99 = var_99 & mask_SORT_67 [L516] SORT_1 var_100_arg_0 = var_73; [L517] SORT_67 var_100_arg_1 = var_99; [L518] EXPR ((SORT_9)var_100_arg_0 << 30) | var_100_arg_1 [L518] SORT_9 var_100 = ((SORT_9)var_100_arg_0 << 30) | var_100_arg_1; [L519] EXPR var_100 & mask_SORT_9 [L519] var_100 = var_100 & mask_SORT_9 [L520] SORT_1 var_101_arg_0 = var_73; [L521] SORT_9 var_101_arg_1 = var_100; [L522] EXPR ((SORT_11)var_101_arg_0 << 31) | var_101_arg_1 [L522] SORT_11 var_101 = ((SORT_11)var_101_arg_0 << 31) | var_101_arg_1; [L523] SORT_11 var_102_arg_0 = var_70; [L524] SORT_11 var_102_arg_1 = var_101; [L525] SORT_11 var_102 = var_102_arg_0 + var_102_arg_1; [L526] SORT_11 var_104_arg_0 = state_103; [L527] SORT_11 var_104 = -var_104_arg_0; [L528] SORT_1 var_106_arg_0 = state_105; [L529] SORT_11 var_106_arg_1 = var_104; [L530] SORT_11 var_106_arg_2 = state_103; [L531] SORT_11 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L532] SORT_11 var_107_arg_0 = var_102; [L533] SORT_11 var_107_arg_1 = var_106; [L534] SORT_11 var_107 = var_107_arg_0 + var_107_arg_1; [L535] SORT_11 var_108_arg_0 = var_107; [L536] SORT_1 var_108 = var_108_arg_0 >> 31; [L537] SORT_1 var_109_arg_0 = var_108; [L538] SORT_9 var_109_arg_1 = var_10; [L539] EXPR ((SORT_11)var_109_arg_0 << 31) | var_109_arg_1 [L539] SORT_11 var_109 = ((SORT_11)var_109_arg_0 << 31) | var_109_arg_1; [L540] EXPR var_109 & mask_SORT_11 [L540] var_109 = var_109 & mask_SORT_11 [L541] SORT_11 var_110_arg_0 = var_107; [L542] SORT_9 var_110 = var_110_arg_0 >> 0; [L543] SORT_9 var_111_arg_0 = var_110; [L544] EXPR var_111_arg_0 & mask_SORT_9 [L544] var_111_arg_0 = var_111_arg_0 & mask_SORT_9 [L545] SORT_11 var_111 = var_111_arg_0; [L546] SORT_11 var_112_arg_0 = var_109; [L547] SORT_11 var_112_arg_1 = var_111; [L548] SORT_1 var_112 = var_112_arg_0 <= var_112_arg_1; [L549] SORT_1 var_113_arg_0 = var_112; [L550] SORT_1 var_113_arg_1 = var_8; [L551] SORT_1 var_113_arg_2 = var_7; [L552] SORT_1 var_113 = var_113_arg_0 ? var_113_arg_1 : var_113_arg_2; [L553] EXPR var_113 & mask_SORT_1 [L553] var_113 = var_113 & mask_SORT_1 [L554] SORT_1 var_114_arg_0 = input_3; [L555] SORT_1 var_114_arg_1 = var_113; [L556] EXPR var_114_arg_0 ^ var_114_arg_1 [L556] SORT_1 var_114 = var_114_arg_0 ^ var_114_arg_1; [L557] SORT_1 var_115_arg_0 = var_114; [L558] SORT_1 var_115 = ~var_115_arg_0; [L559] SORT_1 var_123_arg_0 = var_122; [L560] SORT_1 var_123_arg_1 = var_115; [L561] SORT_1 var_123_arg_2 = var_8; [L562] SORT_1 var_123 = var_123_arg_0 ? var_123_arg_1 : var_123_arg_2; [L563] SORT_1 var_124_arg_0 = var_123; [L564] SORT_1 var_124 = ~var_124_arg_0; [L565] SORT_1 var_125_arg_0 = var_123; [L566] SORT_1 var_125 = ~var_125_arg_0; [L567] SORT_1 var_126_arg_0 = var_124; [L568] SORT_1 var_126_arg_1 = var_125; [L569] EXPR var_126_arg_0 & var_126_arg_1 [L569] SORT_1 var_126 = var_126_arg_0 & var_126_arg_1; [L570] EXPR var_126 & mask_SORT_1 [L570] var_126 = var_126 & mask_SORT_1 [L571] SORT_1 bad_127_arg_0 = var_126; [L572] CALL __VERIFIER_assert(!(bad_127_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.8s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 11.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:17:16,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E --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 64bit --witnessprinter.graph.data.programhash 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:17:19,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:17:19,628 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 03:17:19,644 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:17:19,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:17:19,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:17:19,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:17:19,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:17:19,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:17:19,696 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:17:19,697 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:17:19,697 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:17:19,697 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:17:19,697 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:17:19,697 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:17:19,697 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:17:19,698 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:17:19,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:17:19,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:17:19,698 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:17:19,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:17:19,699 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:17:19,699 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:17:19,699 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:17:19,699 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:17:19,699 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:17:19,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:17:19,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:17:19,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:17:19,702 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:17:19,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:17:19,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:17:19,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:17:19,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:17:19,704 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f2704c4e2c6d7f64d9e04a1e2386cc75b096498be0071ea7fbc37af2938bd44 [2024-11-14 03:17:20,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:17:20,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:17:20,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:17:20,134 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:17:20,135 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:17:20,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c Unable to find full path for "g++" [2024-11-14 03:17:22,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:17:22,552 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:17:22,553 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-11-14 03:17:22,581 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data/e3ccfe123/544686732c7f48c78117b4932abfb576/FLAG572841571 [2024-11-14 03:17:22,709 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/data/e3ccfe123/544686732c7f48c78117b4932abfb576 [2024-11-14 03:17:22,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:17:22,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:17:22,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:17:22,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:17:22,725 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:17:22,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:17:22" (1/1) ... [2024-11-14 03:17:22,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@664d62cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:22, skipping insertion in model container [2024-11-14 03:17:22,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:17:22" (1/1) ... [2024-11-14 03:17:22,803 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:17:23,056 WARN L250 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_3f442d8e-e06e-4930-950d-e787db1f58d1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326] [2024-11-14 03:17:23,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:17:23,491 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:17:23,504 WARN L250 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_3f442d8e-e06e-4930-950d-e787db1f58d1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c[1313,1326] [2024-11-14 03:17:23,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:17:23,800 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:17:23,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23 WrapperNode [2024-11-14 03:17:23,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:17:23,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:17:23,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:17:23,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:17:23,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:23,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:23,938 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 761 [2024-11-14 03:17:23,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:17:23,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:17:23,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:17:23,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:17:23,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:23,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:23,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:23,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:24,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:24,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:24,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:24,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:24,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:17:24,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:17:24,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:17:24,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:17:24,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (1/1) ... [2024-11-14 03:17:24,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:17:24,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:24,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:17:24,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:17:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:17:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:17:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-14 03:17:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-14 03:17:24,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:17:24,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:17:24,503 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:17:24,506 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:17:26,302 INFO L? ?]: Removed 344 outVars from TransFormulas that were not future-live. [2024-11-14 03:17:26,303 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:17:26,318 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:17:26,320 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:17:26,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:17:26 BoogieIcfgContainer [2024-11-14 03:17:26,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:17:26,324 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:17:26,325 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:17:26,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:17:26,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:17:22" (1/3) ... [2024-11-14 03:17:26,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7175bced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:17:26, skipping insertion in model container [2024-11-14 03:17:26,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:17:23" (2/3) ... [2024-11-14 03:17:26,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7175bced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:17:26, skipping insertion in model container [2024-11-14 03:17:26,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:17:26" (3/3) ... [2024-11-14 03:17:26,335 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c [2024-11-14 03:17:26,357 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:17:26,359 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.unsafe_intersymbol_analog_estimation_convergence.c that has 2 procedures, 18 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:17:26,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:17:26,455 INFO L333 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, 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;@909745, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:17:26,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:17:26,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:17:26,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:17:26,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:26,474 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:17:26,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:26,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:26,482 INFO L85 PathProgramCache]: Analyzing trace with hash 584130565, now seen corresponding path program 1 times [2024-11-14 03:17:26,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:26,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878831875] [2024-11-14 03:17:26,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:26,499 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 [2024-11-14 03:17:26,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:26,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:17:26,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:17:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:27,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-14 03:17:27,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:27,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 03:17:27,190 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:17:27,190 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:17:27,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878831875] [2024-11-14 03:17:27,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878831875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:17:27,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:17:27,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:17:27,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343663990] [2024-11-14 03:17:27,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:17:27,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:17:27,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:17:27,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:17:27,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:17:27,228 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:17:27,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:27,250 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2024-11-14 03:17:27,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:17:27,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2024-11-14 03:17:27,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:27,262 INFO L225 Difference]: With dead ends: 31 [2024-11-14 03:17:27,262 INFO L226 Difference]: Without dead ends: 15 [2024-11-14 03:17:27,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:17:27,273 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:27,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:17:27,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-14 03:17:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-14 03:17:27,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:17:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2024-11-14 03:17:27,328 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 17 [2024-11-14 03:17:27,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:27,328 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2024-11-14 03:17:27,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-14 03:17:27,329 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2024-11-14 03:17:27,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-14 03:17:27,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:27,330 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:17:27,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 03:17:27,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:17:27,534 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:27,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash 899554305, now seen corresponding path program 1 times [2024-11-14 03:17:27,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:27,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278623822] [2024-11-14 03:17:27,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:27,537 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 [2024-11-14 03:17:27,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:27,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:17:27,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:17:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:28,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-14 03:17:28,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-14 03:17:28,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:17:28,876 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:17:28,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278623822] [2024-11-14 03:17:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278623822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:17:28,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:17:28,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:17:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920597196] [2024-11-14 03:17:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:17:28,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:17:28,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:17:28,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:17:28,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:17:28,883 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:17:29,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:29,472 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-14 03:17:29,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:17:29,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-11-14 03:17:29,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:29,474 INFO L225 Difference]: With dead ends: 24 [2024-11-14 03:17:29,474 INFO L226 Difference]: Without dead ends: 22 [2024-11-14 03:17:29,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:17:29,475 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:29,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:17:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-14 03:17:29,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-11-14 03:17:29,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 03:17:29,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-14 03:17:29,484 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2024-11-14 03:17:29,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:29,486 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-14 03:17:29,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-14 03:17:29,486 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-14 03:17:29,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 03:17:29,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:29,488 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-14 03:17:29,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:17:29,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:17:29,694 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:29,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:29,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1718916253, now seen corresponding path program 1 times [2024-11-14 03:17:29,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:29,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907293197] [2024-11-14 03:17:29,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:29,702 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 [2024-11-14 03:17:29,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:29,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:17:29,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-14 03:17:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:31,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-14 03:17:31,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:32,075 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:17:32,075 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:32,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:17:32,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907293197] [2024-11-14 03:17:32,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907293197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:32,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [566215327] [2024-11-14 03:17:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:32,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:32,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:17:32,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:17:32,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-14 03:17:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:33,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-14 03:17:33,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:17:34,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:34,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [566215327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:34,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424104324] [2024-11-14 03:17:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:17:34,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:34,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:34,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:34,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:17:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:17:35,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:17:35,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:17:36,385 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:36,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424104324] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:36,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:17:36,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6] total 6 [2024-11-14 03:17:36,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852474615] [2024-11-14 03:17:36,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:17:36,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:17:36,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:17:36,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:17:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:17:36,669 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:17:38,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:38,015 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-11-14 03:17:38,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:17:38,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-14 03:17:38,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:38,016 INFO L225 Difference]: With dead ends: 31 [2024-11-14 03:17:38,016 INFO L226 Difference]: Without dead ends: 29 [2024-11-14 03:17:38,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 97 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:17:38,018 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:38,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-14 03:17:38,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-14 03:17:38,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-11-14 03:17:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-14 03:17:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2024-11-14 03:17:38,027 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 32 [2024-11-14 03:17:38,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:38,028 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2024-11-14 03:17:38,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-14 03:17:38,028 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-14 03:17:38,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 03:17:38,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:38,029 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-11-14 03:17:38,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 03:17:38,237 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:17:38,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-14 03:17:38,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:17:38,631 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:38,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:38,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1689441343, now seen corresponding path program 2 times [2024-11-14 03:17:38,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:38,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1682034146] [2024-11-14 03:17:38,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:17:38,633 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 [2024-11-14 03:17:38,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:38,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:17:38,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-14 03:17:39,999 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:17:40,000 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:40,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:17:40,042 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:41,031 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 03:17:41,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:41,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:17:41,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1682034146] [2024-11-14 03:17:41,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1682034146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:41,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1289668837] [2024-11-14 03:17:41,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:17:41,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:41,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:17:41,330 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:17:41,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-14 03:17:43,447 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:17:43,448 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:43,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:17:43,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:44,289 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 03:17:44,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1289668837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:44,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964834824] [2024-11-14 03:17:44,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:17:44,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:44,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:44,567 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:44,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:17:45,655 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:17:45,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:45,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:17:45,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-14 03:17:46,395 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:46,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964834824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:46,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:17:46,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 6 [2024-11-14 03:17:46,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250072010] [2024-11-14 03:17:46,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:17:46,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:17:46,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:17:46,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:17:46,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-14 03:17:46,636 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:17:48,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:17:48,323 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2024-11-14 03:17:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 03:17:48,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 47 [2024-11-14 03:17:48,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:17:48,325 INFO L225 Difference]: With dead ends: 38 [2024-11-14 03:17:48,325 INFO L226 Difference]: Without dead ends: 36 [2024-11-14 03:17:48,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:17:48,326 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:17:48,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 49 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-14 03:17:48,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-14 03:17:48,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2024-11-14 03:17:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-14 03:17:48,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2024-11-14 03:17:48,340 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 47 [2024-11-14 03:17:48,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:17:48,340 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2024-11-14 03:17:48,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-14 03:17:48,341 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2024-11-14 03:17:48,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 03:17:48,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:17:48,345 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2024-11-14 03:17:48,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:17:48,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-14 03:17:48,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-14 03:17:48,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:48,946 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:17:48,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:17:48,946 INFO L85 PathProgramCache]: Analyzing trace with hash -110959709, now seen corresponding path program 3 times [2024-11-14 03:17:48,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:17:48,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4377435] [2024-11-14 03:17:48,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:17:48,948 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 [2024-11-14 03:17:48,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:17:48,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:17:48,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-14 03:17:51,237 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:17:51,237 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:51,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:17:51,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:52,487 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:17:52,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:52,740 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:17:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4377435] [2024-11-14 03:17:52,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4377435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:52,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2027642526] [2024-11-14 03:17:52,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:17:52,740 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:17:52,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:17:52,742 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:17:52,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-14 03:17:56,136 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:17:56,136 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:17:56,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-14 03:17:56,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:17:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:17:57,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:17:57,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2027642526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:17:57,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13992962] [2024-11-14 03:17:57,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:17:57,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:17:57,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:17:57,588 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:17:57,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:18:02,829 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:18:02,829 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:18:02,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 1239 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-14 03:18:02,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:18:03,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:04,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13992962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:04,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:18:04,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2024-11-14 03:18:04,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339681882] [2024-11-14 03:18:04,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:18:04,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:18:04,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:18:04,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:18:04,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-14 03:18:04,151 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 03:18:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:18:07,240 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-14 03:18:07,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 03:18:07,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2024-11-14 03:18:07,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:18:07,242 INFO L225 Difference]: With dead ends: 45 [2024-11-14 03:18:07,242 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 03:18:07,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:18:07,243 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:18:07,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 101 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-14 03:18:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 03:18:07,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-11-14 03:18:07,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-14 03:18:07,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-14 03:18:07,257 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 62 [2024-11-14 03:18:07,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:18:07,258 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-14 03:18:07,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-14 03:18:07,258 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-14 03:18:07,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:18:07,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:18:07,261 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-11-14 03:18:07,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-14 03:18:07,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-14 03:18:07,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:18:07,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:18:07,862 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:18:07,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:18:07,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1997417345, now seen corresponding path program 4 times [2024-11-14 03:18:07,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:18:07,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1462622503] [2024-11-14 03:18:07,864 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:18:07,864 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 [2024-11-14 03:18:07,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:18:07,868 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:18:07,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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)] Waiting until timeout for monitored process [2024-11-14 03:18:11,067 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:18:11,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:18:11,121 INFO L255 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-14 03:18:11,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-14 03:18:12,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:13,000 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:18:13,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1462622503] [2024-11-14 03:18:13,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1462622503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:13,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1985449217] [2024-11-14 03:18:13,000 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:18:13,000 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:18:13,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:18:13,002 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:18:13,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-14 03:18:16,663 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:18:16,663 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:18:16,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-14 03:18:16,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-14 03:18:18,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:18,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1985449217] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:18,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100161004] [2024-11-14 03:18:18,280 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:18:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:18:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:18:18,282 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:18:18,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:18:20,127 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:18:20,127 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:18:20,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 03:18:20,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-14 03:18:21,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:22,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100161004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:22,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:18:22,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 9 [2024-11-14 03:18:22,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869512168] [2024-11-14 03:18:22,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:18:22,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-14 03:18:22,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:18:22,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-14 03:18:22,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-14 03:18:22,098 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 03:18:25,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:18:25,800 INFO L93 Difference]: Finished difference Result 52 states and 63 transitions. [2024-11-14 03:18:25,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 03:18:25,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 77 [2024-11-14 03:18:25,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:18:25,803 INFO L225 Difference]: With dead ends: 52 [2024-11-14 03:18:25,803 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 03:18:25,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 229 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-14 03:18:25,804 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:18:25,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 133 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-14 03:18:25,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 03:18:25,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2024-11-14 03:18:25,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 03:18:25,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2024-11-14 03:18:25,818 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 77 [2024-11-14 03:18:25,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:18:25,818 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2024-11-14 03:18:25,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-14 03:18:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2024-11-14 03:18:25,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 03:18:25,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:18:25,821 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 1, 1, 1, 1] [2024-11-14 03:18:25,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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)] Ended with exit code 0 [2024-11-14 03:18:26,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-14 03:18:26,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-14 03:18:26,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:18:26,422 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:18:26,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:18:26,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1626706973, now seen corresponding path program 5 times [2024-11-14 03:18:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:18:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109519840] [2024-11-14 03:18:26,423 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-14 03:18:26,423 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 [2024-11-14 03:18:26,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:18:26,425 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:18:26,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 (16)] Waiting until timeout for monitored process [2024-11-14 03:18:29,366 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-14 03:18:29,366 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:18:29,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-14 03:18:29,461 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:31,668 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-14 03:18:31,668 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:31,964 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:18:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109519840] [2024-11-14 03:18:31,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109519840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:31,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [631292467] [2024-11-14 03:18:31,964 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-14 03:18:31,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:18:31,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:18:31,967 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:18:31,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-14 03:18:50,138 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-14 03:18:50,139 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:18:50,243 INFO L255 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-14 03:18:50,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:18:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-14 03:18:51,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:18:52,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [631292467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:18:52,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681930141] [2024-11-14 03:18:52,069 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-14 03:18:52,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:18:52,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:18:52,071 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:18:52,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-14 03:20:56,883 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-14 03:20:56,883 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:20:57,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 1814 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-14 03:20:57,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:20:58,984 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-14 03:20:58,984 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:20:59,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681930141] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:20:59,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:20:59,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 10 [2024-11-14 03:20:59,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053111281] [2024-11-14 03:20:59,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:20:59,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:20:59,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:20:59,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:20:59,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-14 03:20:59,192 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-14 03:21:03,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:21:03,869 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2024-11-14 03:21:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:21:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 92 [2024-11-14 03:21:03,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:21:03,872 INFO L225 Difference]: With dead ends: 59 [2024-11-14 03:21:03,872 INFO L226 Difference]: Without dead ends: 57 [2024-11-14 03:21:03,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 273 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-14 03:21:03,873 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:21:03,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 169 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-14 03:21:03,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-14 03:21:03,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2024-11-14 03:21:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-14 03:21:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2024-11-14 03:21:03,893 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 92 [2024-11-14 03:21:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:21:03,893 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2024-11-14 03:21:03,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-14 03:21:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2024-11-14 03:21:03,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 03:21:03,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:21:03,895 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2024-11-14 03:21:03,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 (16)] Ended with exit code 0 [2024-11-14 03:21:04,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-14 03:21:04,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-14 03:21:04,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:21:04,496 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:21:04,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:21:04,497 INFO L85 PathProgramCache]: Analyzing trace with hash -790815935, now seen corresponding path program 6 times [2024-11-14 03:21:04,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:21:04,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041242983] [2024-11-14 03:21:04,499 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-14 03:21:04,499 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 [2024-11-14 03:21:04,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:21:04,504 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:21:04,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f442d8e-e06e-4930-950d-e787db1f58d1/bin/utaipan-verify-sOmjnqqW8E/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 (19)] Waiting until timeout for monitored process [2024-11-14 03:21:14,817 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-14 03:21:14,817 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:21:14,941 WARN L253 TraceCheckSpWp]: Trace formula consists of 2067 conjuncts, 1177 conjuncts are in the unsatisfiable core [2024-11-14 03:21:15,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:24:07,047 WARN L286 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 1015 DAG size of output: 1014 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:24:17,993 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 1022 DAG size of output: 1021 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:24:32,526 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 1036 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:24:44,789 WARN L286 SmtUtils]: Spent 6.27s on a formula simplification that was a NOOP. DAG size: 1037 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)