./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 f849895f3b33bb52cfb29e0d9e7838b143b412485c8add4ec69cb2104446783f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:55:28,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:55:28,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:55:28,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:55:28,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:55:28,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:55:28,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:55:28,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:55:28,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:55:28,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:55:28,961 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:55:28,961 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:55:28,961 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:55:28,961 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:55:28,962 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:55:28,962 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:55:28,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:55:28,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:55:28,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:55:28,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:55:28,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:55:28,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:55:28,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:55:28,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:55:28,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:55:28,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:55:28,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:55:28,967 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:55:28,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:55:28,967 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:55:28,967 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:55:28,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:55:28,968 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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 -> f849895f3b33bb52cfb29e0d9e7838b143b412485c8add4ec69cb2104446783f [2024-11-14 04:55:29,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:55:29,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:55:29,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:55:29,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:55:29,346 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:55:29,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c Unable to find full path for "g++" [2024-11-14 04:55:31,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:55:31,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:55:31,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2024-11-14 04:55:31,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data/0eef24da9/81c322c87b4c4b70819e3acdc1d85f3a/FLAG34b5b14f7 [2024-11-14 04:55:31,896 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data/0eef24da9/81c322c87b4c4b70819e3acdc1d85f3a [2024-11-14 04:55:31,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:55:31,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:55:31,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:55:31,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:55:31,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:55:31,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:55:31" (1/1) ... [2024-11-14 04:55:31,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405cec77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:31, skipping insertion in model container [2024-11-14 04:55:31,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:55:31" (1/1) ... [2024-11-14 04:55:31,959 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:55:32,174 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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1245,1258] [2024-11-14 04:55:32,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:55:32,361 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:55:32,374 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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1245,1258] [2024-11-14 04:55:32,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:55:32,482 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:55:32,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32 WrapperNode [2024-11-14 04:55:32,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:55:32,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:55:32,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:55:32,484 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:55:32,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,516 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,581 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 485 [2024-11-14 04:55:32,582 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:55:32,582 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:55:32,583 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:55:32,583 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:55:32,595 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,595 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,605 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,639 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:55:32,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:55:32,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:55:32,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:55:32,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (1/1) ... [2024-11-14 04:55:32,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:55:32,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:55:32,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:55:32,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:55:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:55:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:55:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:55:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:55:32,934 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:55:32,937 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:55:33,648 INFO L? ?]: Removed 266 outVars from TransFormulas that were not future-live. [2024-11-14 04:55:33,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:55:34,209 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:55:34,209 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:55:34,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:34 BoogieIcfgContainer [2024-11-14 04:55:34,210 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:55:34,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:55:34,212 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:55:34,217 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:55:34,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:55:31" (1/3) ... [2024-11-14 04:55:34,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f6b072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:55:34, skipping insertion in model container [2024-11-14 04:55:34,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:32" (2/3) ... [2024-11-14 04:55:34,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f6b072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:55:34, skipping insertion in model container [2024-11-14 04:55:34,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:34" (3/3) ... [2024-11-14 04:55:34,220 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b08.c [2024-11-14 04:55:34,237 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:55:34,238 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b08.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:55:34,301 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:55:34,317 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;@1d2b1ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:55:34,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:55:34,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:34,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:55:34,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:55:34,332 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:55:34,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:55:34,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:55:34,340 INFO L85 PathProgramCache]: Analyzing trace with hash 9072733, now seen corresponding path program 1 times [2024-11-14 04:55:34,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:55:34,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814731468] [2024-11-14 04:55:34,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:34,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:55:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:55:34,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:55:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:55:35,059 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:55:35,061 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:55:35,062 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:55:35,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:55:35,072 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:55:35,122 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:55:35,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:55:35 BoogieIcfgContainer [2024-11-14 04:55:35,132 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:55:35,132 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:55:35,132 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:55:35,132 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:55:35,133 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:34" (3/4) ... [2024-11-14 04:55:35,138 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:55:35,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:55:35,140 INFO L158 Benchmark]: Toolchain (without parser) took 3238.46ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 54.4MB in the end (delta: 37.9MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-14 04:55:35,141 INFO L158 Benchmark]: CDTParser took 1.42ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:55:35,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.80ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 74.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:55:35,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.05ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 67.4MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:55:35,142 INFO L158 Benchmark]: Boogie Preprocessor took 98.44ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 64.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:55:35,142 INFO L158 Benchmark]: RCFGBuilder took 1528.33ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 53.5MB in the end (delta: 10.9MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-11-14 04:55:35,143 INFO L158 Benchmark]: TraceAbstraction took 919.28ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 54.5MB in the end (delta: -941.0kB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-11-14 04:55:35,143 INFO L158 Benchmark]: Witness Printer took 7.03ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 11.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:55:35,148 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.80ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 74.5MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.05ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 67.4MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.44ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 64.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1528.33ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 53.5MB in the end (delta: 10.9MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * TraceAbstraction took 919.28ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 54.5MB in the end (delta: -941.0kB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 7.03ms. Allocated memory is still 117.4MB. Free memory was 54.5MB in the beginning and 54.4MB in the end (delta: 11.8kB). 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 bitwiseAnd at line 92, overapproximation of bitwiseAnd at line 104. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 20); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (20 - 1); [L35] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 3); [L36] const SORT_9 msb_SORT_9 = (SORT_9)1 << (3 - 1); [L38] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L39] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L41] const SORT_90 mask_SORT_90 = (SORT_90)-1 >> (sizeof(SORT_90) * 8 - 4); [L42] const SORT_90 msb_SORT_90 = (SORT_90)1 << (4 - 1); [L44] const SORT_6 var_7 = 196596; [L45] const SORT_6 var_8 = 829275; [L46] const SORT_9 var_10 = 0; [L47] const SORT_13 var_15 = 6; [L48] const SORT_13 var_20 = 5; [L49] const SORT_13 var_25 = 4; [L50] const SORT_13 var_30 = 3; [L51] const SORT_13 var_35 = 2; [L52] const SORT_13 var_40 = 1; [L53] const SORT_13 var_45 = 0; [L54] const SORT_6 var_48 = 1047464; [L55] const SORT_6 var_60 = 1048430; [L56] const SORT_6 var_70 = 1046202; [L57] const SORT_6 var_78 = 692223; [L58] const SORT_6 var_84 = 236898; [L59] const SORT_6 var_88 = 522618; [L60] const SORT_1 var_96 = 1; [L61] const SORT_1 var_107 = 0; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_1 input_5; [L66] SORT_6 input_18; [L67] SORT_6 input_23; [L68] SORT_6 input_28; [L69] SORT_6 input_33; [L70] SORT_6 input_38; [L71] SORT_6 input_43; [L72] SORT_6 input_50; [L73] SORT_6 input_52; [L74] SORT_6 input_54; [L75] SORT_6 input_56; [L76] SORT_6 input_58; [L77] SORT_6 input_62; [L78] SORT_6 input_64; [L79] SORT_6 input_66; [L80] SORT_6 input_68; [L81] SORT_6 input_72; [L82] SORT_6 input_74; [L83] SORT_6 input_76; [L84] SORT_6 input_80; [L85] SORT_6 input_82; [L86] SORT_6 input_86; [L87] SORT_3 input_100; [L88] SORT_90 input_102; [L89] SORT_90 input_104; [L90] SORT_1 input_113; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L92] SORT_9 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L93] SORT_1 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] SORT_9 init_12_arg_1 = var_10; [L96] state_11 = init_12_arg_1 [L97] SORT_1 init_109_arg_1 = var_107; [L98] state_108 = init_109_arg_1 VAL [mask_SORT_1=1, mask_SORT_90=15, mask_SORT_9=7, state_108=0, state_11=0, var_107=0, var_10=0, var_15=6, var_20=5, var_25=4, var_30=3, var_35=2, var_40=1, var_45=0, var_48=1047464, var_60=1048430, var_70=1046202, var_78=692223, var_7=196596, var_84=236898, var_88=522618, var_8=829275, var_96=1] [L101] input_2 = __VERIFIER_nondet_uchar() [L102] input_4 = __VERIFIER_nondet_uchar() [L103] input_5 = __VERIFIER_nondet_uchar() [L104] EXPR input_5 & mask_SORT_1 [L104] input_5 = input_5 & mask_SORT_1 [L105] input_18 = __VERIFIER_nondet_uint() [L106] input_23 = __VERIFIER_nondet_uint() [L107] input_28 = __VERIFIER_nondet_uint() [L108] input_33 = __VERIFIER_nondet_uint() [L109] input_38 = __VERIFIER_nondet_uint() [L110] input_43 = __VERIFIER_nondet_uint() [L111] input_50 = __VERIFIER_nondet_uint() [L112] input_52 = __VERIFIER_nondet_uint() [L113] input_54 = __VERIFIER_nondet_uint() [L114] input_56 = __VERIFIER_nondet_uint() [L115] input_58 = __VERIFIER_nondet_uint() [L116] input_62 = __VERIFIER_nondet_uint() [L117] input_64 = __VERIFIER_nondet_uint() [L118] input_66 = __VERIFIER_nondet_uint() [L119] input_68 = __VERIFIER_nondet_uint() [L120] input_72 = __VERIFIER_nondet_uint() [L121] input_74 = __VERIFIER_nondet_uint() [L122] input_76 = __VERIFIER_nondet_uint() [L123] input_80 = __VERIFIER_nondet_uint() [L124] input_82 = __VERIFIER_nondet_uint() [L125] input_86 = __VERIFIER_nondet_uint() [L126] input_100 = __VERIFIER_nondet_uchar() [L127] input_102 = __VERIFIER_nondet_uchar() [L128] input_104 = __VERIFIER_nondet_uchar() [L129] input_113 = __VERIFIER_nondet_uchar() [L132] SORT_9 var_44_arg_0 = state_11; [L133] EXPR var_44_arg_0 & mask_SORT_9 [L133] var_44_arg_0 = var_44_arg_0 & mask_SORT_9 [L134] SORT_13 var_44 = var_44_arg_0; [L135] SORT_13 var_46_arg_0 = var_44; [L136] SORT_13 var_46_arg_1 = var_45; [L137] SORT_1 var_46 = var_46_arg_0 == var_46_arg_1; [L138] SORT_9 var_39_arg_0 = state_11; [L139] EXPR var_39_arg_0 & mask_SORT_9 [L139] var_39_arg_0 = var_39_arg_0 & mask_SORT_9 [L140] SORT_13 var_39 = var_39_arg_0; [L141] SORT_13 var_41_arg_0 = var_39; [L142] SORT_13 var_41_arg_1 = var_40; [L143] SORT_1 var_41 = var_41_arg_0 == var_41_arg_1; [L144] SORT_9 var_34_arg_0 = state_11; [L145] EXPR var_34_arg_0 & mask_SORT_9 [L145] var_34_arg_0 = var_34_arg_0 & mask_SORT_9 [L146] SORT_13 var_34 = var_34_arg_0; [L147] SORT_13 var_36_arg_0 = var_34; [L148] SORT_13 var_36_arg_1 = var_35; [L149] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L150] SORT_9 var_29_arg_0 = state_11; [L151] EXPR var_29_arg_0 & mask_SORT_9 [L151] var_29_arg_0 = var_29_arg_0 & mask_SORT_9 [L152] SORT_13 var_29 = var_29_arg_0; [L153] SORT_13 var_31_arg_0 = var_29; [L154] SORT_13 var_31_arg_1 = var_30; [L155] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L156] SORT_9 var_24_arg_0 = state_11; [L157] EXPR var_24_arg_0 & mask_SORT_9 [L157] var_24_arg_0 = var_24_arg_0 & mask_SORT_9 [L158] SORT_13 var_24 = var_24_arg_0; [L159] SORT_13 var_26_arg_0 = var_24; [L160] SORT_13 var_26_arg_1 = var_25; [L161] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L162] SORT_9 var_19_arg_0 = state_11; [L163] EXPR var_19_arg_0 & mask_SORT_9 [L163] var_19_arg_0 = var_19_arg_0 & mask_SORT_9 [L164] SORT_13 var_19 = var_19_arg_0; [L165] SORT_13 var_21_arg_0 = var_19; [L166] SORT_13 var_21_arg_1 = var_20; [L167] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L168] SORT_9 var_14_arg_0 = state_11; [L169] EXPR var_14_arg_0 & mask_SORT_9 [L169] var_14_arg_0 = var_14_arg_0 & mask_SORT_9 [L170] SORT_13 var_14 = var_14_arg_0; [L171] SORT_13 var_16_arg_0 = var_14; [L172] SORT_13 var_16_arg_1 = var_15; [L173] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L174] SORT_1 var_17_arg_0 = var_16; [L175] SORT_6 var_17_arg_1 = var_8; [L176] SORT_6 var_17_arg_2 = var_7; [L177] SORT_6 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L178] SORT_1 var_22_arg_0 = var_21; [L179] SORT_6 var_22_arg_1 = input_18; [L180] SORT_6 var_22_arg_2 = var_17; [L181] SORT_6 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; [L182] SORT_1 var_27_arg_0 = var_26; [L183] SORT_6 var_27_arg_1 = input_23; [L184] SORT_6 var_27_arg_2 = var_22; [L185] SORT_6 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L186] SORT_1 var_32_arg_0 = var_31; [L187] SORT_6 var_32_arg_1 = input_28; [L188] SORT_6 var_32_arg_2 = var_27; [L189] SORT_6 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L190] SORT_1 var_37_arg_0 = var_36; [L191] SORT_6 var_37_arg_1 = input_33; [L192] SORT_6 var_37_arg_2 = var_32; [L193] SORT_6 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L194] SORT_1 var_42_arg_0 = var_41; [L195] SORT_6 var_42_arg_1 = input_38; [L196] SORT_6 var_42_arg_2 = var_37; [L197] SORT_6 var_42 = var_42_arg_0 ? var_42_arg_1 : var_42_arg_2; [L198] SORT_1 var_47_arg_0 = var_46; [L199] SORT_6 var_47_arg_1 = input_43; [L200] SORT_6 var_47_arg_2 = var_42; [L201] SORT_6 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L202] SORT_1 var_49_arg_0 = var_21; [L203] SORT_6 var_49_arg_1 = var_48; [L204] SORT_6 var_49_arg_2 = var_47; [L205] SORT_6 var_49 = var_49_arg_0 ? var_49_arg_1 : var_49_arg_2; [L206] SORT_1 var_51_arg_0 = var_26; [L207] SORT_6 var_51_arg_1 = input_50; [L208] SORT_6 var_51_arg_2 = var_49; [L209] SORT_6 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L210] SORT_1 var_53_arg_0 = var_31; [L211] SORT_6 var_53_arg_1 = input_52; [L212] SORT_6 var_53_arg_2 = var_51; [L213] SORT_6 var_53 = var_53_arg_0 ? var_53_arg_1 : var_53_arg_2; [L214] SORT_1 var_55_arg_0 = var_36; [L215] SORT_6 var_55_arg_1 = input_54; [L216] SORT_6 var_55_arg_2 = var_53; [L217] SORT_6 var_55 = var_55_arg_0 ? var_55_arg_1 : var_55_arg_2; [L218] SORT_1 var_57_arg_0 = var_41; [L219] SORT_6 var_57_arg_1 = input_56; [L220] SORT_6 var_57_arg_2 = var_55; [L221] SORT_6 var_57 = var_57_arg_0 ? var_57_arg_1 : var_57_arg_2; [L222] SORT_1 var_59_arg_0 = var_46; [L223] SORT_6 var_59_arg_1 = input_58; [L224] SORT_6 var_59_arg_2 = var_57; [L225] SORT_6 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L226] SORT_1 var_61_arg_0 = var_26; [L227] SORT_6 var_61_arg_1 = var_60; [L228] SORT_6 var_61_arg_2 = var_59; [L229] SORT_6 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L230] SORT_1 var_63_arg_0 = var_31; [L231] SORT_6 var_63_arg_1 = input_62; [L232] SORT_6 var_63_arg_2 = var_61; [L233] SORT_6 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L234] SORT_1 var_65_arg_0 = var_36; [L235] SORT_6 var_65_arg_1 = input_64; [L236] SORT_6 var_65_arg_2 = var_63; [L237] SORT_6 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L238] SORT_1 var_67_arg_0 = var_41; [L239] SORT_6 var_67_arg_1 = input_66; [L240] SORT_6 var_67_arg_2 = var_65; [L241] SORT_6 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L242] SORT_1 var_69_arg_0 = var_46; [L243] SORT_6 var_69_arg_1 = input_68; [L244] SORT_6 var_69_arg_2 = var_67; [L245] SORT_6 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L246] SORT_1 var_71_arg_0 = var_31; [L247] SORT_6 var_71_arg_1 = var_70; [L248] SORT_6 var_71_arg_2 = var_69; [L249] SORT_6 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L250] SORT_1 var_73_arg_0 = var_36; [L251] SORT_6 var_73_arg_1 = input_72; [L252] SORT_6 var_73_arg_2 = var_71; [L253] SORT_6 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L254] SORT_1 var_75_arg_0 = var_41; [L255] SORT_6 var_75_arg_1 = input_74; [L256] SORT_6 var_75_arg_2 = var_73; [L257] SORT_6 var_75 = var_75_arg_0 ? var_75_arg_1 : var_75_arg_2; [L258] SORT_1 var_77_arg_0 = var_46; [L259] SORT_6 var_77_arg_1 = input_76; [L260] SORT_6 var_77_arg_2 = var_75; [L261] SORT_6 var_77 = var_77_arg_0 ? var_77_arg_1 : var_77_arg_2; [L262] SORT_1 var_79_arg_0 = var_36; [L263] SORT_6 var_79_arg_1 = var_78; [L264] SORT_6 var_79_arg_2 = var_77; [L265] SORT_6 var_79 = var_79_arg_0 ? var_79_arg_1 : var_79_arg_2; [L266] SORT_1 var_81_arg_0 = var_41; [L267] SORT_6 var_81_arg_1 = input_80; [L268] SORT_6 var_81_arg_2 = var_79; [L269] SORT_6 var_81 = var_81_arg_0 ? var_81_arg_1 : var_81_arg_2; [L270] SORT_1 var_83_arg_0 = var_46; [L271] SORT_6 var_83_arg_1 = input_82; [L272] SORT_6 var_83_arg_2 = var_81; [L273] SORT_6 var_83 = var_83_arg_0 ? var_83_arg_1 : var_83_arg_2; [L274] SORT_1 var_85_arg_0 = var_41; [L275] SORT_6 var_85_arg_1 = var_84; [L276] SORT_6 var_85_arg_2 = var_83; [L277] SORT_6 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L278] SORT_1 var_87_arg_0 = var_46; [L279] SORT_6 var_87_arg_1 = input_86; [L280] SORT_6 var_87_arg_2 = var_85; [L281] SORT_6 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L282] SORT_1 var_89_arg_0 = var_46; [L283] SORT_6 var_89_arg_1 = var_88; [L284] SORT_6 var_89_arg_2 = var_87; [L285] SORT_6 var_89 = var_89_arg_0 ? var_89_arg_1 : var_89_arg_2; [L286] SORT_6 var_91_arg_0 = var_89; [L287] SORT_90 var_91 = var_91_arg_0 >> 0; [L288] SORT_90 var_92_arg_0 = var_91; [L289] EXPR var_92_arg_0 & mask_SORT_90 [L289] var_92_arg_0 = var_92_arg_0 & mask_SORT_90 [L290] SORT_13 var_92 = var_92_arg_0; [L291] SORT_13 var_93_arg_0 = var_92; [L292] SORT_13 var_93_arg_1 = var_45; [L293] SORT_1 var_93 = var_93_arg_0 != var_93_arg_1; [L294] SORT_1 var_97_arg_0 = var_93; [L295] SORT_1 var_97 = ~var_97_arg_0; [L296] SORT_1 var_98_arg_0 = var_96; [L297] SORT_1 var_98_arg_1 = var_97; [L298] EXPR var_98_arg_0 & var_98_arg_1 [L298] SORT_1 var_98 = var_98_arg_0 & var_98_arg_1; [L299] EXPR var_98 & mask_SORT_1 [L299] var_98 = var_98 & mask_SORT_1 [L300] SORT_1 bad_99_arg_0 = var_98; [L301] CALL __VERIFIER_assert(!(bad_99_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 04:55:35,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 f849895f3b33bb52cfb29e0d9e7838b143b412485c8add4ec69cb2104446783f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:55:37,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:55:38,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 04:55:38,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:55:38,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:55:38,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:55:38,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:55:38,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:55:38,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:55:38,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:55:38,175 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:55:38,176 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:55:38,176 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:55:38,176 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:55:38,176 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:55:38,176 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:55:38,177 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:55:38,177 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:55:38,177 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:55:38,177 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:55:38,177 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:55:38,178 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:55:38,178 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:55:38,178 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:55:38,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:55:38,178 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:55:38,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:55:38,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:55:38,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:55:38,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:55:38,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:55:38,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:55:38,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:55:38,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:55:38,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:55:38,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:55:38,180 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:55:38,180 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:55:38,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:55:38,181 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:55:38,181 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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 -> f849895f3b33bb52cfb29e0d9e7838b143b412485c8add4ec69cb2104446783f [2024-11-14 04:55:38,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:55:38,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:55:38,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:55:38,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:55:38,571 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:55:38,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c Unable to find full path for "g++" [2024-11-14 04:55:40,621 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:55:40,936 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:55:40,937 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c [2024-11-14 04:55:40,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data/137802485/29b15eea888d4aaeb368bba82a3b79b2/FLAG0ae369acd [2024-11-14 04:55:40,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/data/137802485/29b15eea888d4aaeb368bba82a3b79b2 [2024-11-14 04:55:40,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:55:40,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:55:40,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:55:40,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:55:40,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:55:40,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:55:40" (1/1) ... [2024-11-14 04:55:40,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df160b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:40, skipping insertion in model container [2024-11-14 04:55:40,988 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:55:40" (1/1) ... [2024-11-14 04:55:41,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:55:41,222 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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1245,1258] [2024-11-14 04:55:41,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:55:41,391 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:55:41,403 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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b08.c[1245,1258] [2024-11-14 04:55:41,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:55:41,488 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:55:41,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41 WrapperNode [2024-11-14 04:55:41,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:55:41,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:55:41,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:55:41,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:55:41,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,560 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 373 [2024-11-14 04:55:41,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:55:41,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:55:41,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:55:41,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:55:41,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,595 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:55:41,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:55:41,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:55:41,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:55:41,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (1/1) ... [2024-11-14 04:55:41,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:55:41,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:55:41,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:55:41,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:55:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:55:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:55:41,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:55:41,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:55:41,852 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:55:41,854 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:55:42,348 INFO L? ?]: Removed 199 outVars from TransFormulas that were not future-live. [2024-11-14 04:55:42,348 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:55:42,359 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:55:42,360 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:55:42,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:42 BoogieIcfgContainer [2024-11-14 04:55:42,360 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:55:42,363 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:55:42,363 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:55:42,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:55:42,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:55:40" (1/3) ... [2024-11-14 04:55:42,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef51476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:55:42, skipping insertion in model container [2024-11-14 04:55:42,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:55:41" (2/3) ... [2024-11-14 04:55:42,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef51476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:55:42, skipping insertion in model container [2024-11-14 04:55:42,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:42" (3/3) ... [2024-11-14 04:55:42,372 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b08.c [2024-11-14 04:55:42,390 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:55:42,392 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.h_b08.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:55:42,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:55:42,475 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;@543d07d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:55:42,475 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:55:42,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:42,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:55:42,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:55:42,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:55:42,489 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:55:42,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:55:42,495 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 04:55:42,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:55:42,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400210349] [2024-11-14 04:55:42,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:42,513 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 04:55:42,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:55:42,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:42,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:42,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-14 04:55:42,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:55:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:43,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:55:43,480 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:55:43,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400210349] [2024-11-14 04:55:43,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400210349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:55:43,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:55:43,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:55:43,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884388263] [2024-11-14 04:55:43,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:55:43,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:55:43,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:55:43,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:55:43,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:55:43,511 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:55:43,641 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:55:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:55:43,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 04:55:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:55:43,653 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:55:43,653 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 04:55:43,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 04:55:43,661 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:55:43,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:55:43,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 04:55:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 04:55:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:55:43,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:55:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:55:43,701 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:55:43,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:43,702 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:55:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:55:43,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:55:43,703 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:55:43,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:43,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:43,904 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:55:43,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:55:43,904 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 04:55:43,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:55:43,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055291963] [2024-11-14 04:55:43,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:43,905 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 04:55:43,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:55:43,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:43,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:44,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-14 04:55:44,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:55:44,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:44,961 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:55:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:46,225 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:55:46,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055291963] [2024-11-14 04:55:46,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055291963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:55:46,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1928325739] [2024-11-14 04:55:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:46,226 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:55:46,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:55:46,231 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:55:46,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:55:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:46,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 04:55:46,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:55:47,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:47,390 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:55:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:48,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1928325739] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:55:48,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018922514] [2024-11-14 04:55:48,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:55:48,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:55:48,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:55:48,151 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:55:48,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:55:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:55:48,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 04:55:48,510 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:55:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:48,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:55:49,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:55:49,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018922514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:55:49,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:55:49,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 7, 6] total 12 [2024-11-14 04:55:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520494658] [2024-11-14 04:55:49,621 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:55:49,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-14 04:55:49,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:55:49,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-14 04:55:49,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-14 04:55:49,623 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:50,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:55:50,152 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-14 04:55:50,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-14 04:55:50,153 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 04:55:50,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:55:50,153 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:55:50,154 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 04:55:50,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-11-14 04:55:50,155 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:55:50,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:55:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 04:55:50,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-14 04:55:50,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:50,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-14 04:55:50,164 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-14 04:55:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:55:50,164 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-14 04:55:50,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:55:50,164 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-14 04:55:50,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 04:55:50,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:55:50,166 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-14 04:55:50,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:55:50,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:50,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-14 04:55:50,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 04:55:50,771 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:55:50,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:55:50,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-14 04:55:50,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:55:50,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1557378521] [2024-11-14 04:55:50,773 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:55:50,773 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 04:55:50,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:55:50,776 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 04:55:50,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 (6)] Waiting until timeout for monitored process [2024-11-14 04:55:51,213 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-14 04:55:51,214 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:55:51,225 WARN L253 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-14 04:55:51,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:55:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:55:55,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:55:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:55:59,846 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:55:59,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1557378521] [2024-11-14 04:55:59,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1557378521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:55:59,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [447153821] [2024-11-14 04:55:59,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:55:59,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:55:59,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:55:59,848 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:55:59,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 04:56:00,521 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-14 04:56:00,521 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:56:00,528 WARN L253 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-14 04:56:00,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:56:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:56:03,726 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:56:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:56:07,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [447153821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:56:07,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711157401] [2024-11-14 04:56:07,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:56:07,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:56:07,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:56:07,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:56:07,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 04:56:08,172 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-14 04:56:08,172 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:56:08,176 WARN L253 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 135 conjuncts are in the unsatisfiable core [2024-11-14 04:56:08,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:56:11,650 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:56:11,650 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:56:19,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-14 04:56:19,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711157401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:56:19,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:56:19,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 4, 4] total 8 [2024-11-14 04:56:19,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061369976] [2024-11-14 04:56:19,636 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:56:19,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-14 04:56:19,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:56:19,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-14 04:56:19,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:56:19,639 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:56:19,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:56:19,789 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-14 04:56:19,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:56:19,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-14 04:56:19,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:56:19,790 INFO L225 Difference]: With dead ends: 15 [2024-11-14 04:56:19,790 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:56:19,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-14 04:56:19,791 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:56:19,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:56:19,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:56:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:56:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:56:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:56:19,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-14 04:56:19,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:56:19,792 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:56:19,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:56:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:56:19,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:56:19,799 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:56:19,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-14 04:56:20,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 (6)] Ended with exit code 0 [2024-11-14 04:56:20,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 04:56:20,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:56:20,403 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1] [2024-11-14 04:56:20,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-14 04:56:20,654 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:56:20,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:56:20 BoogieIcfgContainer [2024-11-14 04:56:20,675 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:56:20,675 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:56:20,676 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:56:20,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:56:20,677 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:55:42" (3/4) ... [2024-11-14 04:56:20,680 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:56:20,694 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-14 04:56:20,694 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-14 04:56:20,695 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-14 04:56:20,699 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:56:20,700 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:56:20,748 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-14 04:56:20,752 INFO L158 Benchmark]: Toolchain (without parser) took 39775.02ms. Allocated memory was 83.9MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 60.2MB in the beginning and 761.1MB in the end (delta: -700.9MB). Peak memory consumption was 254.6MB. Max. memory is 16.1GB. [2024-11-14 04:56:20,755 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:56:20,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 510.34ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 42.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:56:20,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.23ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 39.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:56:20,756 INFO L158 Benchmark]: Boogie Preprocessor took 34.52ms. Allocated memory is still 83.9MB. Free memory was 39.2MB in the beginning and 37.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:56:20,757 INFO L158 Benchmark]: RCFGBuilder took 763.92ms. Allocated memory is still 83.9MB. Free memory was 37.5MB in the beginning and 39.5MB in the end (delta: -1.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-11-14 04:56:20,757 INFO L158 Benchmark]: TraceAbstraction took 38311.55ms. Allocated memory was 83.9MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 38.9MB in the beginning and 765.5MB in the end (delta: -726.5MB). Peak memory consumption was 232.9MB. Max. memory is 16.1GB. [2024-11-14 04:56:20,757 INFO L158 Benchmark]: Witness Printer took 75.57ms. Allocated memory is still 1.0GB. Free memory was 765.5MB in the beginning and 761.1MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:56:20,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 510.34ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 42.3MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.23ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 39.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.52ms. Allocated memory is still 83.9MB. Free memory was 39.2MB in the beginning and 37.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 763.92ms. Allocated memory is still 83.9MB. Free memory was 37.5MB in the beginning and 39.5MB in the end (delta: -1.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * TraceAbstraction took 38311.55ms. Allocated memory was 83.9MB in the beginning and 1.0GB in the end (delta: 956.3MB). Free memory was 38.9MB in the beginning and 765.5MB in the end (delta: -726.5MB). Peak memory consumption was 232.9MB. Max. memory is 16.1GB. * Witness Printer took 75.57ms. Allocated memory is still 1.0GB. Free memory was 765.5MB in the beginning and 761.1MB in the end (delta: 4.4MB). 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.0s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 103 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 31.9s InterpolantComputationTime, 71 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 124 ConstructedInterpolants, 42 QuantifiedInterpolants, 17993 SizeOfPredicates, 72 NumberOfNonLiveVariables, 2031 ConjunctsInSsa, 520 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 72/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((((((((((((7 == mask_SORT_9) && (1046202 == var_70)) && (196596 == var_7)) && (522618 == var_88)) && (2 == var_35)) && (1047464 == var_48)) && (0 == var_45)) && (692223 == var_78)) && (15 == mask_SORT_90)) && (1048430 == var_60)) && (1 == mask_SORT_1)) && (4 == var_25)) && (829275 == var_8)) && (236898 == var_84)) * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-14 04:56:20,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60b194c5-78d3-4aca-a35f-3f58eb3e0c19/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null