./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.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_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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_8d765317-e570-4fee-871c-a3d21dc128e8/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 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:39:10,712 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:39:10,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 03:39:10,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:39:10,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:39:10,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:39:10,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:39:10,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:39:10,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:39:10,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:39:10,810 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:39:10,810 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:39:10,810 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:39:10,810 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:39:10,810 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:39:10,810 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:39:10,811 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:39:10,811 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:39:10,811 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:39:10,811 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:39:10,811 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:39:10,811 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:39:10,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:39:10,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:39:10,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:39:10,812 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:39:10,812 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:39:10,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:39:10,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:39:10,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:39:10,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:39:10,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:39:10,814 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:39:10,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:39:10,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:39:10,814 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:39:10,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:39:10,814 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_8d765317-e570-4fee-871c-a3d21dc128e8/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 -> 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b [2024-11-14 03:39:11,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:39:11,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:39:11,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:39:11,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:39:11,088 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:39:11,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c Unable to find full path for "g++" [2024-11-14 03:39:13,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:39:13,547 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:39:13,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c [2024-11-14 03:39:13,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data/2eb038fa1/20e2703bb2884eadb9a4becb3e75e201/FLAG280532662 [2024-11-14 03:39:13,613 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data/2eb038fa1/20e2703bb2884eadb9a4becb3e75e201 [2024-11-14 03:39:13,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:39:13,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:39:13,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:39:13,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:39:13,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:39:13,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:39:13" (1/1) ... [2024-11-14 03:39:13,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442701ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:13, skipping insertion in model container [2024-11-14 03:39:13,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:39:13" (1/1) ... [2024-11-14 03:39:13,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:39:14,034 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_8d765317-e570-4fee-871c-a3d21dc128e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2024-11-14 03:39:14,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:39:14,787 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:39:14,797 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_8d765317-e570-4fee-871c-a3d21dc128e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2024-11-14 03:39:15,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:39:15,122 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:39:15,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15 WrapperNode [2024-11-14 03:39:15,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:39:15,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:39:15,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:39:15,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:39:15,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:15,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,071 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5985 [2024-11-14 03:39:16,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:39:16,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:39:16,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:39:16,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:39:16,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,185 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,881 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:39:16,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:39:16,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:39:16,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:39:16,886 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (1/1) ... [2024-11-14 03:39:16,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:39:16,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:39:16,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:39:16,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:39:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:39:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:39:17,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:39:17,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:39:18,032 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:39:18,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:39:26,065 INFO L? ?]: Removed 3957 outVars from TransFormulas that were not future-live. [2024-11-14 03:39:26,065 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:39:33,906 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:39:33,907 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:39:33,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:39:33 BoogieIcfgContainer [2024-11-14 03:39:33,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:39:33,911 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:39:33,911 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:39:33,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:39:33,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:39:13" (1/3) ... [2024-11-14 03:39:33,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c77fd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:39:33, skipping insertion in model container [2024-11-14 03:39:33,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:15" (2/3) ... [2024-11-14 03:39:33,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c77fd84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:39:33, skipping insertion in model container [2024-11-14 03:39:33,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:39:33" (3/3) ... [2024-11-14 03:39:33,922 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal186.c [2024-11-14 03:39:33,945 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:39:33,946 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal186.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:39:34,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:39:34,044 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;@6cdbe8d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:39:34,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:39:34,051 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 03:39:34,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 03:39:34,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:39:34,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 03:39:34,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:39:34,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:39:34,069 INFO L85 PathProgramCache]: Analyzing trace with hash 175700052, now seen corresponding path program 1 times [2024-11-14 03:39:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:39:34,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577368364] [2024-11-14 03:39:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:34,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:39:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:39:35,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:39:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:39:36,577 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:39:36,580 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:39:36,582 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 03:39:36,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:39:36,591 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:39:36,679 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:39:36,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:39:36 BoogieIcfgContainer [2024-11-14 03:39:36,691 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:39:36,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:39:36,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:39:36,692 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:39:36,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:39:33" (3/4) ... [2024-11-14 03:39:36,698 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:39:36,699 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:39:36,702 INFO L158 Benchmark]: Toolchain (without parser) took 23078.08ms. Allocated memory was 117.4MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 87.5MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 484.4MB. Max. memory is 16.1GB. [2024-11-14 03:39:36,702 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:39:36,703 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1500.76ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 52.5MB in the end (delta: 35.0MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. [2024-11-14 03:39:36,704 INFO L158 Benchmark]: Boogie Procedure Inliner took 945.54ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 52.5MB in the beginning and 135.7MB in the end (delta: -83.2MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. [2024-11-14 03:39:36,705 INFO L158 Benchmark]: Boogie Preprocessor took 808.31ms. Allocated memory is still 251.7MB. Free memory was 135.7MB in the beginning and 108.2MB in the end (delta: 27.5MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2024-11-14 03:39:36,705 INFO L158 Benchmark]: RCFGBuilder took 17024.97ms. Allocated memory was 251.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 108.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 789.5MB. Max. memory is 16.1GB. [2024-11-14 03:39:36,707 INFO L158 Benchmark]: TraceAbstraction took 2780.35ms. Allocated memory is still 2.2GB. Free memory was 1.9GB in the beginning and 1.7GB in the end (delta: 211.7MB). Peak memory consumption was 218.1MB. Max. memory is 16.1GB. [2024-11-14 03:39:36,708 INFO L158 Benchmark]: Witness Printer took 6.83ms. Allocated memory is still 2.2GB. Free memory is still 1.7GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:39:36,710 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1500.76ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 52.5MB in the end (delta: 35.0MB). Peak memory consumption was 83.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 945.54ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 52.5MB in the beginning and 135.7MB in the end (delta: -83.2MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 808.31ms. Allocated memory is still 251.7MB. Free memory was 135.7MB in the beginning and 108.2MB in the end (delta: 27.5MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * RCFGBuilder took 17024.97ms. Allocated memory was 251.7MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 108.2MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 789.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2780.35ms. Allocated memory is still 2.2GB. Free memory was 1.9GB in the beginning and 1.7GB in the end (delta: 211.7MB). Peak memory consumption was 218.1MB. Max. memory is 16.1GB. * Witness Printer took 6.83ms. Allocated memory is still 2.2GB. Free memory is still 1.7GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 403, overapproximation of bitwiseAnd at line 146, overapproximation of bitwiseAnd at line 294. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L35] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 3); [L36] const SORT_20 msb_SORT_20 = (SORT_20)1 << (3 - 1); [L38] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 31); [L39] const SORT_165 msb_SORT_165 = (SORT_165)1 << (31 - 1); [L41] const SORT_1 var_90 = 0; [L42] const SORT_7 var_94 = 0; [L43] const SORT_1 var_115 = 1; [L44] const SORT_7 var_122 = 1618477080; [L45] const SORT_9 var_139 = 0; [L46] const SORT_9 var_148 = 2; [L47] const SORT_9 var_152 = 3; [L48] const SORT_9 var_163 = 1; [L49] const SORT_165 var_166 = 1618477056; [L50] const SORT_165 var_169 = 1618478076; [L51] const SORT_20 var_214 = 0; [L52] const SORT_20 var_218 = 2; [L53] const SORT_20 var_220 = 4; [L54] const SORT_20 var_233 = 3; [L55] const SORT_20 var_318 = 5; [L56] const SORT_20 var_320 = 7; [L57] const SORT_20 var_333 = 6; [L58] const SORT_20 var_367 = 1; [L60] SORT_1 input_2; [L61] SORT_1 input_3; [L62] SORT_1 input_4; [L63] SORT_1 input_5; [L64] SORT_1 input_6; [L65] SORT_7 input_8; [L66] SORT_9 input_10; [L67] SORT_1 input_11; [L68] SORT_7 input_12; [L69] SORT_7 input_13; [L70] SORT_1 input_14; [L71] SORT_7 input_15; [L72] SORT_1 input_16; [L73] SORT_1 input_17; [L74] SORT_1 input_18; [L75] SORT_7 input_19; [L76] SORT_20 input_21; [L77] SORT_7 input_22; [L78] SORT_1 input_23; [L79] SORT_1 input_24; [L80] SORT_7 input_25; [L81] SORT_1 input_26; [L82] SORT_1 input_27; [L83] SORT_1 input_28; [L84] SORT_1 input_29; [L85] SORT_1 input_30; [L86] SORT_1 input_31; [L87] SORT_9 input_32; [L88] SORT_9 input_33; [L89] SORT_7 input_34; [L90] SORT_7 input_35; [L91] SORT_1 input_36; [L92] SORT_9 input_37; [L93] SORT_9 input_38; [L94] SORT_7 input_39; [L95] SORT_7 input_40; [L96] SORT_1 input_41; [L97] SORT_1 input_42; [L98] SORT_1 input_43; [L99] SORT_7 input_44; [L100] SORT_7 input_45; [L101] SORT_1 input_46; [L102] SORT_1 input_47; [L103] SORT_1 input_48; [L104] SORT_1 input_49; [L105] SORT_9 input_50; [L106] SORT_9 input_51; [L107] SORT_1 input_52; [L108] SORT_1 input_53; [L109] SORT_1 input_54; [L110] SORT_1 input_55; [L111] SORT_1 input_56; [L112] SORT_1 input_57; [L113] SORT_1 input_58; [L114] SORT_1 input_59; [L115] SORT_1 input_60; [L116] SORT_1 input_61; [L117] SORT_9 input_62; [L118] SORT_9 input_63; [L119] SORT_1 input_64; [L120] SORT_1 input_65; [L121] SORT_1 input_66; [L122] SORT_1 input_67; [L123] SORT_9 input_68; [L124] SORT_9 input_69; [L125] SORT_7 input_70; [L126] SORT_7 input_71; [L127] SORT_7 input_72; [L128] SORT_7 input_73; [L129] SORT_9 input_74; [L130] SORT_9 input_75; [L131] SORT_7 input_76; [L132] SORT_7 input_77; [L133] SORT_7 input_78; [L134] SORT_7 input_79; [L135] SORT_20 input_80; [L136] SORT_20 input_81; [L137] SORT_1 input_82; [L138] SORT_1 input_83; [L139] SORT_7 input_84; [L140] SORT_7 input_85; [L141] SORT_7 input_86; [L142] SORT_7 input_87; [L143] SORT_1 input_88; [L144] SORT_1 input_89; [L146] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L146] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L147] SORT_7 state_95 = __VERIFIER_nondet_uint() & mask_SORT_7; [L148] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L148] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L149] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L149] SORT_7 state_104 = __VERIFIER_nondet_uint() & mask_SORT_7; [L150] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L150] SORT_7 state_119 = __VERIFIER_nondet_uint() & mask_SORT_7; [L151] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L151] SORT_1 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L152] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L152] SORT_1 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L153] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L153] SORT_7 state_134 = __VERIFIER_nondet_uint() & mask_SORT_7; [L154] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L154] SORT_9 state_140 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L155] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L155] SORT_1 state_143 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L156] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L156] SORT_9 state_149 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L157] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L157] SORT_1 state_157 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L158] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L158] SORT_1 state_201 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L159] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L159] SORT_1 state_204 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L160] EXPR __VERIFIER_nondet_uchar() & mask_SORT_20 [L160] SORT_20 state_215 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L161] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L161] SORT_9 state_246 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L162] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L162] SORT_9 state_251 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L163] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L163] SORT_1 state_255 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L164] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L164] SORT_1 state_262 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L165] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L165] SORT_1 state_305 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L166] SORT_1 state_308 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L167] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L167] SORT_7 state_345 = __VERIFIER_nondet_uint() & mask_SORT_7; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L168] SORT_1 state_348 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L169] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L169] SORT_7 state_356 = __VERIFIER_nondet_uint() & mask_SORT_7; [L170] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L170] SORT_7 state_445 = __VERIFIER_nondet_uint() & mask_SORT_7; [L171] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L171] SORT_7 state_452 = __VERIFIER_nondet_uint() & mask_SORT_7; [L172] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L172] SORT_7 state_604 = __VERIFIER_nondet_uint() & mask_SORT_7; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L173] SORT_1 state_608 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L174] SORT_1 state_613 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L175] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L175] SORT_7 state_618 = __VERIFIER_nondet_uint() & mask_SORT_7; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L176] SORT_9 state_623 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L177] SORT_1 state_626 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L178] SORT_9 state_631 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L179] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L179] SORT_1 state_638 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L180] SORT_1 state_669 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L181] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L181] SORT_1 state_672 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] EXPR __VERIFIER_nondet_uchar() & mask_SORT_20 [L182] SORT_20 state_682 = __VERIFIER_nondet_uchar() & mask_SORT_20; [L183] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L183] SORT_9 state_710 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L184] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L184] SORT_9 state_715 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L185] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L185] SORT_1 state_719 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L186] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L186] SORT_1 state_726 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L187] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L187] SORT_1 state_761 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L188] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L188] SORT_1 state_764 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L189] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L189] SORT_7 state_798 = __VERIFIER_nondet_uint() & mask_SORT_7; [L190] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L190] SORT_1 state_801 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L191] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L191] SORT_7 state_809 = __VERIFIER_nondet_uint() & mask_SORT_7; [L192] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L192] SORT_7 state_897 = __VERIFIER_nondet_uint() & mask_SORT_7; [L193] EXPR __VERIFIER_nondet_uint() & mask_SORT_7 [L193] SORT_7 state_904 = __VERIFIER_nondet_uint() & mask_SORT_7; [L195] SORT_1 init_92_arg_1 = var_90; [L196] state_91 = init_92_arg_1 [L197] SORT_7 init_96_arg_1 = var_94; [L198] state_95 = init_96_arg_1 [L199] SORT_1 init_98_arg_1 = var_90; [L200] state_97 = init_98_arg_1 [L201] SORT_7 init_105_arg_1 = var_94; [L202] state_104 = init_105_arg_1 [L203] SORT_7 init_120_arg_1 = var_94; [L204] state_119 = init_120_arg_1 [L205] SORT_1 init_125_arg_1 = var_90; [L206] state_124 = init_125_arg_1 [L207] SORT_1 init_130_arg_1 = var_90; [L208] state_129 = init_130_arg_1 [L209] SORT_7 init_135_arg_1 = var_94; [L210] state_134 = init_135_arg_1 [L211] SORT_9 init_141_arg_1 = var_139; [L212] state_140 = init_141_arg_1 [L213] SORT_1 init_144_arg_1 = var_90; [L214] state_143 = init_144_arg_1 [L215] SORT_9 init_150_arg_1 = var_139; [L216] state_149 = init_150_arg_1 [L217] SORT_1 init_158_arg_1 = var_90; [L218] state_157 = init_158_arg_1 [L219] SORT_1 init_202_arg_1 = var_90; [L220] state_201 = init_202_arg_1 [L221] SORT_1 init_205_arg_1 = var_90; [L222] state_204 = init_205_arg_1 [L223] SORT_20 init_216_arg_1 = var_214; [L224] state_215 = init_216_arg_1 [L225] SORT_9 init_247_arg_1 = var_139; [L226] state_246 = init_247_arg_1 [L227] SORT_9 init_252_arg_1 = var_139; [L228] state_251 = init_252_arg_1 [L229] SORT_1 init_256_arg_1 = var_90; [L230] state_255 = init_256_arg_1 [L231] SORT_1 init_263_arg_1 = var_90; [L232] state_262 = init_263_arg_1 [L233] SORT_1 init_306_arg_1 = var_90; [L234] state_305 = init_306_arg_1 [L235] SORT_1 init_309_arg_1 = var_90; [L236] state_308 = init_309_arg_1 [L237] SORT_7 init_346_arg_1 = var_94; [L238] state_345 = init_346_arg_1 [L239] SORT_1 init_349_arg_1 = var_90; [L240] state_348 = init_349_arg_1 [L241] SORT_7 init_357_arg_1 = var_94; [L242] state_356 = init_357_arg_1 [L243] SORT_7 init_446_arg_1 = var_94; [L244] state_445 = init_446_arg_1 [L245] SORT_7 init_453_arg_1 = var_94; [L246] state_452 = init_453_arg_1 [L247] SORT_7 init_605_arg_1 = var_94; [L248] state_604 = init_605_arg_1 [L249] SORT_1 init_609_arg_1 = var_90; [L250] state_608 = init_609_arg_1 [L251] SORT_1 init_614_arg_1 = var_90; [L252] state_613 = init_614_arg_1 [L253] SORT_7 init_619_arg_1 = var_94; [L254] state_618 = init_619_arg_1 [L255] SORT_9 init_624_arg_1 = var_139; [L256] state_623 = init_624_arg_1 [L257] SORT_1 init_627_arg_1 = var_90; [L258] state_626 = init_627_arg_1 [L259] SORT_9 init_632_arg_1 = var_139; [L260] state_631 = init_632_arg_1 [L261] SORT_1 init_639_arg_1 = var_90; [L262] state_638 = init_639_arg_1 [L263] SORT_1 init_670_arg_1 = var_90; [L264] state_669 = init_670_arg_1 [L265] SORT_1 init_673_arg_1 = var_90; [L266] state_672 = init_673_arg_1 [L267] SORT_20 init_683_arg_1 = var_214; [L268] state_682 = init_683_arg_1 [L269] SORT_9 init_711_arg_1 = var_139; [L270] state_710 = init_711_arg_1 [L271] SORT_9 init_716_arg_1 = var_139; [L272] state_715 = init_716_arg_1 [L273] SORT_1 init_720_arg_1 = var_90; [L274] state_719 = init_720_arg_1 [L275] SORT_1 init_727_arg_1 = var_90; [L276] state_726 = init_727_arg_1 [L277] SORT_1 init_762_arg_1 = var_90; [L278] state_761 = init_762_arg_1 [L279] SORT_1 init_765_arg_1 = var_90; [L280] state_764 = init_765_arg_1 [L281] SORT_7 init_799_arg_1 = var_94; [L282] state_798 = init_799_arg_1 [L283] SORT_1 init_802_arg_1 = var_90; [L284] state_801 = init_802_arg_1 [L285] SORT_7 init_810_arg_1 = var_94; [L286] state_809 = init_810_arg_1 [L287] SORT_7 init_898_arg_1 = var_94; [L288] state_897 = init_898_arg_1 [L289] SORT_7 init_905_arg_1 = var_94; [L290] state_904 = init_905_arg_1 VAL [mask_SORT_165=2147483647, mask_SORT_1=1, mask_SORT_20=7, mask_SORT_7=-1, mask_SORT_9=3, state_104=0, state_119=0, state_124=0, state_129=0, state_134=0, state_140=0, state_143=0, state_149=0, state_157=0, state_201=0, state_204=0, state_215=0, state_246=0, state_251=0, state_255=0, state_262=0, state_305=0, state_308=0, state_345=0, state_348=0, state_356=0, state_445=0, state_452=0, state_604=0, state_608=0, state_613=0, state_618=0, state_623=0, state_626=0, state_631=0, state_638=0, state_669=0, state_672=0, state_682=0, state_710=0, state_715=0, state_719=0, state_726=0, state_761=0, state_764=0, state_798=0, state_801=0, state_809=0, state_897=0, state_904=0, state_91=0, state_95=0, state_97=0, var_115=1, var_122=1618477080, var_139=0, var_148=2, var_152=3, var_163=1, var_166=1618477056, var_169=1618478076, var_214=0, var_218=2, var_220=4, var_233=3, var_318=5, var_320=7, var_333=6, var_367=1, var_90=0, var_94=0] [L293] input_2 = __VERIFIER_nondet_uchar() [L294] EXPR input_2 & mask_SORT_1 [L294] input_2 = input_2 & mask_SORT_1 [L295] input_3 = __VERIFIER_nondet_uchar() [L296] EXPR input_3 & mask_SORT_1 [L296] input_3 = input_3 & mask_SORT_1 [L297] input_4 = __VERIFIER_nondet_uchar() [L298] EXPR input_4 & mask_SORT_1 [L298] input_4 = input_4 & mask_SORT_1 [L299] input_5 = __VERIFIER_nondet_uchar() [L300] input_6 = __VERIFIER_nondet_uchar() [L301] input_8 = __VERIFIER_nondet_uint() [L302] EXPR input_8 & mask_SORT_7 [L302] input_8 = input_8 & mask_SORT_7 [L303] input_10 = __VERIFIER_nondet_uchar() [L304] input_11 = __VERIFIER_nondet_uchar() [L305] input_12 = __VERIFIER_nondet_uint() [L306] EXPR input_12 & mask_SORT_7 [L306] input_12 = input_12 & mask_SORT_7 [L307] input_13 = __VERIFIER_nondet_uint() [L308] input_14 = __VERIFIER_nondet_uchar() [L309] EXPR input_14 & mask_SORT_1 [L309] input_14 = input_14 & mask_SORT_1 [L310] input_15 = __VERIFIER_nondet_uint() [L311] input_16 = __VERIFIER_nondet_uchar() [L312] EXPR input_16 & mask_SORT_1 [L312] input_16 = input_16 & mask_SORT_1 [L313] input_17 = __VERIFIER_nondet_uchar() [L314] input_18 = __VERIFIER_nondet_uchar() [L315] EXPR input_18 & mask_SORT_1 [L315] input_18 = input_18 & mask_SORT_1 [L316] input_19 = __VERIFIER_nondet_uint() [L317] input_21 = __VERIFIER_nondet_uchar() [L318] input_22 = __VERIFIER_nondet_uint() [L319] input_23 = __VERIFIER_nondet_uchar() [L320] input_24 = __VERIFIER_nondet_uchar() [L321] input_25 = __VERIFIER_nondet_uint() [L322] input_26 = __VERIFIER_nondet_uchar() [L323] input_27 = __VERIFIER_nondet_uchar() [L324] input_28 = __VERIFIER_nondet_uchar() [L325] input_29 = __VERIFIER_nondet_uchar() [L326] input_30 = __VERIFIER_nondet_uchar() [L327] input_31 = __VERIFIER_nondet_uchar() [L328] input_32 = __VERIFIER_nondet_uchar() [L329] input_33 = __VERIFIER_nondet_uchar() [L330] input_34 = __VERIFIER_nondet_uint() [L331] input_35 = __VERIFIER_nondet_uint() [L332] input_36 = __VERIFIER_nondet_uchar() [L333] input_37 = __VERIFIER_nondet_uchar() [L334] input_38 = __VERIFIER_nondet_uchar() [L335] input_39 = __VERIFIER_nondet_uint() [L336] input_40 = __VERIFIER_nondet_uint() [L337] input_41 = __VERIFIER_nondet_uchar() [L338] input_42 = __VERIFIER_nondet_uchar() [L339] input_43 = __VERIFIER_nondet_uchar() [L340] input_44 = __VERIFIER_nondet_uint() [L341] input_45 = __VERIFIER_nondet_uint() [L342] input_46 = __VERIFIER_nondet_uchar() [L343] input_47 = __VERIFIER_nondet_uchar() [L344] input_48 = __VERIFIER_nondet_uchar() [L345] input_49 = __VERIFIER_nondet_uchar() [L346] input_50 = __VERIFIER_nondet_uchar() [L347] input_51 = __VERIFIER_nondet_uchar() [L348] input_52 = __VERIFIER_nondet_uchar() [L349] input_53 = __VERIFIER_nondet_uchar() [L350] input_54 = __VERIFIER_nondet_uchar() [L351] input_55 = __VERIFIER_nondet_uchar() [L352] input_56 = __VERIFIER_nondet_uchar() [L353] input_57 = __VERIFIER_nondet_uchar() [L354] input_58 = __VERIFIER_nondet_uchar() [L355] input_59 = __VERIFIER_nondet_uchar() [L356] input_60 = __VERIFIER_nondet_uchar() [L357] input_61 = __VERIFIER_nondet_uchar() [L358] input_62 = __VERIFIER_nondet_uchar() [L359] input_63 = __VERIFIER_nondet_uchar() [L360] input_64 = __VERIFIER_nondet_uchar() [L361] input_65 = __VERIFIER_nondet_uchar() [L362] input_66 = __VERIFIER_nondet_uchar() [L363] input_67 = __VERIFIER_nondet_uchar() [L364] input_68 = __VERIFIER_nondet_uchar() [L365] input_69 = __VERIFIER_nondet_uchar() [L366] input_70 = __VERIFIER_nondet_uint() [L367] input_71 = __VERIFIER_nondet_uint() [L368] input_72 = __VERIFIER_nondet_uint() [L369] input_73 = __VERIFIER_nondet_uint() [L370] input_74 = __VERIFIER_nondet_uchar() [L371] input_75 = __VERIFIER_nondet_uchar() [L372] input_76 = __VERIFIER_nondet_uint() [L373] input_77 = __VERIFIER_nondet_uint() [L374] input_78 = __VERIFIER_nondet_uint() [L375] input_79 = __VERIFIER_nondet_uint() [L376] input_80 = __VERIFIER_nondet_uchar() [L377] input_81 = __VERIFIER_nondet_uchar() [L378] input_82 = __VERIFIER_nondet_uchar() [L379] input_83 = __VERIFIER_nondet_uchar() [L380] input_84 = __VERIFIER_nondet_uint() [L381] input_85 = __VERIFIER_nondet_uint() [L382] input_86 = __VERIFIER_nondet_uint() [L383] input_87 = __VERIFIER_nondet_uint() [L384] input_88 = __VERIFIER_nondet_uchar() [L385] input_89 = __VERIFIER_nondet_uchar() [L388] SORT_1 var_93_arg_0 = state_91; [L389] SORT_1 var_93 = ~var_93_arg_0; [L390] SORT_1 var_99_arg_0 = state_97; [L391] SORT_7 var_99_arg_1 = state_95; [L392] SORT_7 var_99_arg_2 = input_19; [L393] SORT_7 var_99 = var_99_arg_0 ? var_99_arg_1 : var_99_arg_2; [L394] SORT_7 var_100_arg_0 = var_99; [L395] SORT_1 var_100 = var_100_arg_0 >> 20; [L396] SORT_7 var_101_arg_0 = var_99; [L397] SORT_1 var_101 = var_101_arg_0 >> 22; [L398] SORT_1 var_102_arg_0 = var_100; [L399] SORT_1 var_102_arg_1 = var_101; [L400] EXPR var_102_arg_0 & var_102_arg_1 [L400] SORT_1 var_102 = var_102_arg_0 & var_102_arg_1; [L401] SORT_1 var_103_arg_0 = var_102; [L402] SORT_1 var_103_arg_1 = input_17; [L403] EXPR var_103_arg_0 | var_103_arg_1 [L403] SORT_1 var_103 = var_103_arg_0 | var_103_arg_1; [L404] EXPR var_103 & mask_SORT_1 [L404] var_103 = var_103 & mask_SORT_1 [L405] SORT_1 var_106_arg_0 = state_97; [L406] SORT_7 var_106_arg_1 = state_104; [L407] SORT_7 var_106_arg_2 = input_19; [L408] SORT_7 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L409] SORT_7 var_107_arg_0 = var_106; [L410] SORT_1 var_107 = var_107_arg_0 >> 20; [L411] SORT_7 var_108_arg_0 = var_106; [L412] SORT_1 var_108 = var_108_arg_0 >> 22; [L413] SORT_1 var_109_arg_0 = var_107; [L414] SORT_1 var_109_arg_1 = var_108; [L415] EXPR var_109_arg_0 & var_109_arg_1 [L415] SORT_1 var_109 = var_109_arg_0 & var_109_arg_1; [L416] SORT_1 var_110_arg_0 = var_109; [L417] SORT_1 var_110_arg_1 = input_17; [L418] EXPR var_110_arg_0 | var_110_arg_1 [L418] SORT_1 var_110 = var_110_arg_0 | var_110_arg_1; [L419] EXPR var_110 & mask_SORT_1 [L419] var_110 = var_110 & mask_SORT_1 [L420] SORT_1 var_111_arg_0 = var_103; [L421] SORT_1 var_111_arg_1 = var_110; [L422] SORT_1 var_111 = var_111_arg_0 == var_111_arg_1; [L423] SORT_1 var_112_arg_0 = var_93; [L424] SORT_1 var_112_arg_1 = var_111; [L425] EXPR var_112_arg_0 | var_112_arg_1 [L425] SORT_1 var_112 = var_112_arg_0 | var_112_arg_1; [L426] SORT_1 var_116_arg_0 = var_112; [L427] SORT_1 var_116 = ~var_116_arg_0; [L428] SORT_1 var_117_arg_0 = var_115; [L429] SORT_1 var_117_arg_1 = var_116; [L430] EXPR var_117_arg_0 & var_117_arg_1 [L430] SORT_1 var_117 = var_117_arg_0 & var_117_arg_1; [L431] EXPR var_117 & mask_SORT_1 [L431] var_117 = var_117 & mask_SORT_1 [L432] SORT_1 bad_118_arg_0 = var_117; [L433] CALL __VERIFIER_assert(!(bad_118_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: 2.6s, 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: 0.1s SsaConstructionTime, 1.2s 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 03:39:36,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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_8d765317-e570-4fee-871c-a3d21dc128e8/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 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:39:40,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:39:40,210 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 03:39:40,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:39:40,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:39:40,288 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:39:40,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:39:40,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:39:40,295 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:39:40,295 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:39:40,295 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:39:40,295 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:39:40,296 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:39:40,296 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:39:40,296 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:39:40,296 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:39:40,296 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:39:40,296 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:39:40,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:39:40,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:39:40,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:39:40,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:39:40,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:39:40,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:39:40,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:39:40,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:39:40,300 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:39:40,300 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:39:40,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:39:40,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:39:40,301 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:39:40,301 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_8d765317-e570-4fee-871c-a3d21dc128e8/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 -> 94ead1e7d3641eb61da31a458a2dce2c0c42c337e01e01459bac05a57a856d5b [2024-11-14 03:39:40,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:39:40,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:39:40,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:39:40,712 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:39:40,712 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:39:40,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c Unable to find full path for "g++" [2024-11-14 03:39:42,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:39:43,614 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:39:43,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c [2024-11-14 03:39:43,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data/c865ce381/eed575aa9ab54b21a7518962d9d88a63/FLAGf2ddf9efd [2024-11-14 03:39:43,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/data/c865ce381/eed575aa9ab54b21a7518962d9d88a63 [2024-11-14 03:39:43,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:39:43,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:39:43,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:39:43,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:39:43,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:39:43,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:39:43" (1/1) ... [2024-11-14 03:39:43,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425f748c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:43, skipping insertion in model container [2024-11-14 03:39:43,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:39:43" (1/1) ... [2024-11-14 03:39:43,852 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:39:44,167 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_8d765317-e570-4fee-871c-a3d21dc128e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2024-11-14 03:39:44,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:39:44,966 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:39:44,977 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_8d765317-e570-4fee-871c-a3d21dc128e8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal186.c[1246,1259] [2024-11-14 03:39:45,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:39:45,350 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:39:45,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45 WrapperNode [2024-11-14 03:39:45,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:39:45,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:39:45,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:39:45,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:39:45,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,599 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3601 [2024-11-14 03:39:45,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:39:45,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:39:45,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:39:45,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:39:45,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,699 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,700 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:39:45,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:39:45,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:39:45,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:39:45,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (1/1) ... [2024-11-14 03:39:45,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:39:45,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:39:45,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:39:45,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:39:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:39:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:39:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:39:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:39:46,902 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:39:46,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:39:50,757 INFO L? ?]: Removed 184 outVars from TransFormulas that were not future-live. [2024-11-14 03:39:50,758 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:39:50,772 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:39:50,772 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:39:50,773 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:39:50 BoogieIcfgContainer [2024-11-14 03:39:50,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:39:50,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:39:50,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:39:50,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:39:50,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:39:43" (1/3) ... [2024-11-14 03:39:50,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f8601e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:39:50, skipping insertion in model container [2024-11-14 03:39:50,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:39:45" (2/3) ... [2024-11-14 03:39:50,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f8601e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:39:50, skipping insertion in model container [2024-11-14 03:39:50,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:39:50" (3/3) ... [2024-11-14 03:39:50,788 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal186.c [2024-11-14 03:39:50,809 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:39:50,812 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal186.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:39:50,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:39:50,911 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;@3cebca68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:39:50,911 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:39:50,917 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 03:39:50,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 03:39:50,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:39:50,927 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 03:39:50,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:39:50,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:39:50,935 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 03:39:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:39:50,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797935744] [2024-11-14 03:39:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:39:50,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:39:50,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:39:50,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 03:39:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:39:52,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-14 03:39:52,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:39:52,334 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 03:39:52,335 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 03:39:52,336 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:39:52,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797935744] [2024-11-14 03:39:52,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797935744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:39:52,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:39:52,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 03:39:52,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681119248] [2024-11-14 03:39:52,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:39:52,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 03:39:52,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:39:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 03:39:52,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 03:39:52,378 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 03:39:52,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:39:52,678 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 03:39:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 03:39:52,683 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 03:39:52,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:39:52,693 INFO L225 Difference]: With dead ends: 18 [2024-11-14 03:39:52,694 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 03:39:52,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:39:52,703 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:39:52,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:39:52,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 03:39:52,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 03:39:52,738 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 03:39:52,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 03:39:52,748 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 03:39:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:39:52,750 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 03:39:52,751 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 03:39:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 03:39:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:39:52,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:39:52,752 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 03:39:52,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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)] Forceful destruction successful, exit code 0 [2024-11-14 03:39:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:39:52,953 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:39:52,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:39:52,953 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 03:39:52,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:39:52,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2024287243] [2024-11-14 03:39:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:52,956 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:39:52,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:39:52,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:39:52,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 03:39:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:39:54,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 03:39:54,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:39:54,848 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 03:39:54,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:39:56,454 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 03:39:56,455 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:39:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2024287243] [2024-11-14 03:39:56,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2024287243] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:39:56,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [932496904] [2024-11-14 03:39:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:56,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:39:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:39:56,467 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:39:56,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 03:39:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:39:59,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-14 03:39:59,822 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:00,004 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 03:40:00,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:40:01,003 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 03:40:01,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [932496904] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:40:01,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448024953] [2024-11-14 03:40:01,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:40:01,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:40:01,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:40:01,007 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:40:01,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:40:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:40:02,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-14 03:40:02,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:02,538 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 03:40:02,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:40:03,581 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 03:40:03,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448024953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:40:03,582 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 03:40:03,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2024-11-14 03:40:03,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279236314] [2024-11-14 03:40:03,583 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 03:40:03,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-14 03:40:03,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 03:40:03,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-14 03:40:03,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-14 03:40:03,585 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:40:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:40:04,022 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-14 03:40:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:40:04,023 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 03:40:04,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:40:04,024 INFO L225 Difference]: With dead ends: 15 [2024-11-14 03:40:04,024 INFO L226 Difference]: Without dead ends: 13 [2024-11-14 03:40:04,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:40:04,027 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:40:04,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 13 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-14 03:40:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-14 03:40:04,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-14 03:40:04,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:40:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-14 03:40:04,032 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-14 03:40:04,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:40:04,032 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-14 03:40:04,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 03:40:04,033 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-14 03:40:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:40:04,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:40:04,033 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-14 03:40:04,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 03:40:04,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:40:04,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:40:04,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt [2024-11-14 03:40:04,635 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:40:04,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:40:04,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-14 03:40:04,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:40:04,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624426022] [2024-11-14 03:40:04,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:40:04,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 03:40:04,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:40:04,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 03:40:04,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/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 03:40:06,534 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:40:06,535 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:40:06,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-14 03:40:06,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:40:08,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:40:08,604 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:41:25,101 WARN L286 SmtUtils]: Spent 32.80s on a formula simplification that was a NOOP. DAG size: 481 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:44:20,676 WARN L286 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 557 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:47:14,587 WARN L286 SmtUtils]: Spent 1.41m on a formula simplification. DAG size of input: 547 DAG size of output: 546 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:49:21,667 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 03:49:21,668 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 03:49:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624426022] [2024-11-14 03:49:21,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624426022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:49:21,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1196023678] [2024-11-14 03:49:21,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 03:49:21,668 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 03:49:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 03:49:21,671 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 03:49:21,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d765317-e570-4fee-871c-a3d21dc128e8/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-14 03:49:25,611 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 03:49:25,611 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:49:25,759 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-14 03:49:25,796 INFO L278 TraceCheckSpWp]: Computing forward predicates...