./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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 a57e2087ba2fb5712da688a78c58574dc68561b7154ad7e0d790d643e6e13ba4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:23:03,754 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:23:03,842 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:23:03,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:23:03,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:23:03,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:23:03,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:23:03,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:23:03,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:23:03,897 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:23:03,898 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:23:03,898 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:23:03,898 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:23:03,898 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:23:03,898 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:23:03,899 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:23:03,899 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:23:03,899 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:23:03,899 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:23:03,899 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:23:03,899 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:23:03,899 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:23:03,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:23:03,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:23:03,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:23:03,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:23:03,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:23:03,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:23:03,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:23:03,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:23:03,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:23:03,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:23:03,902 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:23:03,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:23:03,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:23:03,903 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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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 -> a57e2087ba2fb5712da688a78c58574dc68561b7154ad7e0d790d643e6e13ba4 [2024-11-14 04:23:04,202 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:23:04,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:23:04,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:23:04,214 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:23:04,214 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:23:04,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c Unable to find full path for "g++" [2024-11-14 04:23:06,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:23:06,554 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:23:06,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c [2024-11-14 04:23:06,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data/89f349b51/be8544522fd4421abd6a18be2a191f09/FLAGd3f61dd42 [2024-11-14 04:23:06,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data/89f349b51/be8544522fd4421abd6a18be2a191f09 [2024-11-14 04:23:06,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:23:06,597 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:23:06,598 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:23:06,598 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:23:06,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:23:06,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:23:06" (1/1) ... [2024-11-14 04:23:06,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559d3ce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:06, skipping insertion in model container [2024-11-14 04:23:06,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:23:06" (1/1) ... [2024-11-14 04:23:06,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:23:06,857 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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1172,1185] [2024-11-14 04:23:07,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:23:07,373 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:23:07,384 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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1172,1185] [2024-11-14 04:23:07,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:23:07,696 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:23:07,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07 WrapperNode [2024-11-14 04:23:07,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:23:07,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:23:07,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:23:07,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:23:07,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:07,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:08,655 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 6061 [2024-11-14 04:23:08,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:23:08,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:23:08,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:23:08,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:23:08,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:08,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:08,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:08,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:09,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:09,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:09,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:09,274 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:09,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:23:09,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:23:09,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:23:09,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:23:09,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (1/1) ... [2024-11-14 04:23:09,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:23:09,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:23:09,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:23:09,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:23:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:23:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:23:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:23:09,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:23:10,042 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:23:10,044 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:23:18,563 INFO L? ?]: Removed 3477 outVars from TransFormulas that were not future-live. [2024-11-14 04:23:18,563 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:23:28,624 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:23:28,625 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:23:28,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:28 BoogieIcfgContainer [2024-11-14 04:23:28,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:23:28,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:23:28,629 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:23:28,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:23:28,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:23:06" (1/3) ... [2024-11-14 04:23:28,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9c46fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:28, skipping insertion in model container [2024-11-14 04:23:28,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:07" (2/3) ... [2024-11-14 04:23:28,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9c46fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:28, skipping insertion in model container [2024-11-14 04:23:28,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:28" (3/3) ... [2024-11-14 04:23:28,641 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.krebs.4.prop1-func-interl.c [2024-11-14 04:23:28,660 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:23:28,662 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.krebs.4.prop1-func-interl.c that has 1 procedures, 7 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:23:28,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:23:28,743 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;@43b64d87, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:23:28,744 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:23:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:23:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 04:23:28,754 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:28,756 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 04:23:28,756 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:28,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash 302088721, now seen corresponding path program 1 times [2024-11-14 04:23:28,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:23:28,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313935792] [2024-11-14 04:23:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:28,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:23:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:23:29,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:23:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:23:30,109 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:23:30,111 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:23:30,112 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:23:30,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:23:30,121 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:23:30,177 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:23:30,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:23:30 BoogieIcfgContainer [2024-11-14 04:23:30,185 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:23:30,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:23:30,186 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:23:30,186 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:23:30,187 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:28" (3/4) ... [2024-11-14 04:23:30,189 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:23:30,193 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:23:30,194 INFO L158 Benchmark]: Toolchain (without parser) took 23597.24ms. Allocated memory was 142.6MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 116.7MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 788.2MB. Max. memory is 16.1GB. [2024-11-14 04:23:30,194 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:23:30,195 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1100.53ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 90.3MB in the end (delta: 26.5MB). Peak memory consumption was 100.0MB. Max. memory is 16.1GB. [2024-11-14 04:23:30,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 956.14ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 90.3MB in the beginning and 199.2MB in the end (delta: -108.9MB). Peak memory consumption was 126.3MB. Max. memory is 16.1GB. [2024-11-14 04:23:30,196 INFO L158 Benchmark]: Boogie Preprocessor took 733.08ms. Allocated memory is still 360.7MB. Free memory was 199.2MB in the beginning and 170.6MB in the end (delta: 28.6MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-11-14 04:23:30,198 INFO L158 Benchmark]: RCFGBuilder took 19230.82ms. Allocated memory was 360.7MB in the beginning and 2.7GB in the end (delta: 2.3GB). Free memory was 170.6MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 931.0MB. Max. memory is 16.1GB. [2024-11-14 04:23:30,199 INFO L158 Benchmark]: TraceAbstraction took 1556.29ms. Allocated memory is still 2.7GB. Free memory was 2.0GB in the beginning and 1.8GB in the end (delta: 113.2MB). Peak memory consumption was 117.4MB. Max. memory is 16.1GB. [2024-11-14 04:23:30,199 INFO L158 Benchmark]: Witness Printer took 6.79ms. Allocated memory is still 2.7GB. Free memory is still 1.8GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:23:30,202 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1100.53ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 90.3MB in the end (delta: 26.5MB). Peak memory consumption was 100.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 956.14ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 90.3MB in the beginning and 199.2MB in the end (delta: -108.9MB). Peak memory consumption was 126.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 733.08ms. Allocated memory is still 360.7MB. Free memory was 199.2MB in the beginning and 170.6MB in the end (delta: 28.6MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * RCFGBuilder took 19230.82ms. Allocated memory was 360.7MB in the beginning and 2.7GB in the end (delta: 2.3GB). Free memory was 170.6MB in the beginning and 2.0GB in the end (delta: -1.8GB). Peak memory consumption was 931.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1556.29ms. Allocated memory is still 2.7GB. Free memory was 2.0GB in the beginning and 1.8GB in the end (delta: 113.2MB). Peak memory consumption was 117.4MB. Max. memory is 16.1GB. * Witness Printer took 6.79ms. Allocated memory is still 2.7GB. Free memory is still 1.8GB. 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 247, overapproximation of bitwiseAnd at line 203, overapproximation of bitwiseAnd at line 73. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L30] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L32] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L33] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L35] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L36] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L38] const SORT_2 var_5 = 0; [L39] const SORT_1 var_30 = 0; [L40] const SORT_3 var_91 = 0; [L41] const SORT_4 var_93 = 80; [L42] const SORT_2 var_97 = 15; [L43] const SORT_4 var_101 = 1; [L44] const SORT_2 var_107 = 4; [L45] const SORT_4 var_109 = 2; [L46] const SORT_2 var_133 = 12; [L47] const SORT_2 var_160 = 2; [L48] const SORT_2 var_225 = 10; [L50] SORT_1 input_98; [L51] SORT_1 input_108; [L52] SORT_1 input_114; [L53] SORT_1 input_138; [L54] SORT_1 input_141; [L55] SORT_1 input_142; [L56] SORT_1 input_143; [L57] SORT_1 input_144; [L58] SORT_1 input_145; [L59] SORT_1 input_146; [L60] SORT_1 input_167; [L61] SORT_1 input_168; [L62] SORT_1 input_169; [L63] SORT_1 input_194; [L64] SORT_1 input_198; [L65] SORT_1 input_199; [L66] SORT_1 input_245; [L67] SORT_1 input_248; [L68] SORT_1 input_249; [L69] SORT_1 input_272; [L70] SORT_1 input_293; [L71] SORT_1 input_314; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L73] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L74] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L75] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L76] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L77] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L78] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L79] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L80] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L81] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L82] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L83] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_2 [L84] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L85] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L86] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L87] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L89] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L90] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L91] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L92] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L92] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L93] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L94] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L94] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L95] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L95] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L96] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L97] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L98] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L99] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L100] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L101] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L102] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L103] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L104] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L105] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L106] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L107] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L108] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L109] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L110] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L111] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L112] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L113] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L114] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_2 init_7_arg_1 = var_5; [L117] state_6 = init_7_arg_1 [L118] SORT_2 init_9_arg_1 = var_5; [L119] state_8 = init_9_arg_1 [L120] SORT_2 init_11_arg_1 = var_5; [L121] state_10 = init_11_arg_1 [L122] SORT_2 init_13_arg_1 = var_5; [L123] state_12 = init_13_arg_1 [L124] SORT_2 init_15_arg_1 = var_5; [L125] state_14 = init_15_arg_1 [L126] SORT_2 init_17_arg_1 = var_5; [L127] state_16 = init_17_arg_1 [L128] SORT_2 init_19_arg_1 = var_5; [L129] state_18 = init_19_arg_1 [L130] SORT_2 init_21_arg_1 = var_5; [L131] state_20 = init_21_arg_1 [L132] SORT_2 init_23_arg_1 = var_5; [L133] state_22 = init_23_arg_1 [L134] SORT_2 init_25_arg_1 = var_5; [L135] state_24 = init_25_arg_1 [L136] SORT_2 init_27_arg_1 = var_5; [L137] state_26 = init_27_arg_1 [L138] SORT_2 init_29_arg_1 = var_5; [L139] state_28 = init_29_arg_1 [L140] SORT_1 init_32_arg_1 = var_30; [L141] state_31 = init_32_arg_1 [L142] SORT_1 init_34_arg_1 = var_30; [L143] state_33 = init_34_arg_1 [L144] SORT_1 init_36_arg_1 = var_30; [L145] state_35 = init_36_arg_1 [L146] SORT_1 init_38_arg_1 = var_30; [L147] state_37 = init_38_arg_1 [L148] SORT_1 init_40_arg_1 = var_30; [L149] state_39 = init_40_arg_1 [L150] SORT_1 init_42_arg_1 = var_30; [L151] state_41 = init_42_arg_1 [L152] SORT_1 init_44_arg_1 = var_30; [L153] state_43 = init_44_arg_1 [L154] SORT_1 init_46_arg_1 = var_30; [L155] state_45 = init_46_arg_1 [L156] SORT_1 init_48_arg_1 = var_30; [L157] state_47 = init_48_arg_1 [L158] SORT_1 init_50_arg_1 = var_30; [L159] state_49 = init_50_arg_1 [L160] SORT_1 init_52_arg_1 = var_30; [L161] state_51 = init_52_arg_1 [L162] SORT_1 init_54_arg_1 = var_30; [L163] state_53 = init_54_arg_1 [L164] SORT_1 init_56_arg_1 = var_30; [L165] state_55 = init_56_arg_1 [L166] SORT_1 init_58_arg_1 = var_30; [L167] state_57 = init_58_arg_1 [L168] SORT_1 init_60_arg_1 = var_30; [L169] state_59 = init_60_arg_1 [L170] SORT_1 init_62_arg_1 = var_30; [L171] state_61 = init_62_arg_1 [L172] SORT_1 init_64_arg_1 = var_30; [L173] state_63 = init_64_arg_1 [L174] SORT_1 init_66_arg_1 = var_30; [L175] state_65 = init_66_arg_1 [L176] SORT_1 init_68_arg_1 = var_30; [L177] state_67 = init_68_arg_1 [L178] SORT_1 init_70_arg_1 = var_30; [L179] state_69 = init_70_arg_1 [L180] SORT_1 init_72_arg_1 = var_30; [L181] state_71 = init_72_arg_1 [L182] SORT_1 init_74_arg_1 = var_30; [L183] state_73 = init_74_arg_1 [L184] SORT_1 init_76_arg_1 = var_30; [L185] state_75 = init_76_arg_1 [L186] SORT_1 init_78_arg_1 = var_30; [L187] state_77 = init_78_arg_1 [L188] SORT_1 init_80_arg_1 = var_30; [L189] state_79 = init_80_arg_1 [L190] SORT_1 init_82_arg_1 = var_30; [L191] state_81 = init_82_arg_1 [L192] SORT_1 init_84_arg_1 = var_30; [L193] state_83 = init_84_arg_1 [L194] SORT_1 init_86_arg_1 = var_30; [L195] state_85 = init_86_arg_1 [L196] SORT_1 init_88_arg_1 = var_30; [L197] state_87 = init_88_arg_1 [L198] SORT_1 init_90_arg_1 = var_30; [L199] state_89 = init_90_arg_1 VAL [mask_SORT_1=1, mask_SORT_2=255, mask_SORT_4=-1, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_6=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_8=0, var_101=1, var_107=4, var_109=2, var_133=12, var_160=2, var_225=10, var_91=0, var_93=80, var_97=15] [L202] input_98 = __VERIFIER_nondet_uchar() [L203] EXPR input_98 & mask_SORT_1 [L203] input_98 = input_98 & mask_SORT_1 [L204] input_108 = __VERIFIER_nondet_uchar() [L205] EXPR input_108 & mask_SORT_1 [L205] input_108 = input_108 & mask_SORT_1 [L206] input_114 = __VERIFIER_nondet_uchar() [L207] EXPR input_114 & mask_SORT_1 [L207] input_114 = input_114 & mask_SORT_1 [L208] input_138 = __VERIFIER_nondet_uchar() [L209] EXPR input_138 & mask_SORT_1 [L209] input_138 = input_138 & mask_SORT_1 [L210] input_141 = __VERIFIER_nondet_uchar() [L211] EXPR input_141 & mask_SORT_1 [L211] input_141 = input_141 & mask_SORT_1 [L212] input_142 = __VERIFIER_nondet_uchar() [L213] EXPR input_142 & mask_SORT_1 [L213] input_142 = input_142 & mask_SORT_1 [L214] input_143 = __VERIFIER_nondet_uchar() [L215] EXPR input_143 & mask_SORT_1 [L215] input_143 = input_143 & mask_SORT_1 [L216] input_144 = __VERIFIER_nondet_uchar() [L217] EXPR input_144 & mask_SORT_1 [L217] input_144 = input_144 & mask_SORT_1 [L218] input_145 = __VERIFIER_nondet_uchar() [L219] EXPR input_145 & mask_SORT_1 [L219] input_145 = input_145 & mask_SORT_1 [L220] input_146 = __VERIFIER_nondet_uchar() [L221] EXPR input_146 & mask_SORT_1 [L221] input_146 = input_146 & mask_SORT_1 [L222] input_167 = __VERIFIER_nondet_uchar() [L223] EXPR input_167 & mask_SORT_1 [L223] input_167 = input_167 & mask_SORT_1 [L224] input_168 = __VERIFIER_nondet_uchar() [L225] EXPR input_168 & mask_SORT_1 [L225] input_168 = input_168 & mask_SORT_1 [L226] input_169 = __VERIFIER_nondet_uchar() [L227] EXPR input_169 & mask_SORT_1 [L227] input_169 = input_169 & mask_SORT_1 [L228] input_194 = __VERIFIER_nondet_uchar() [L229] EXPR input_194 & mask_SORT_1 [L229] input_194 = input_194 & mask_SORT_1 [L230] input_198 = __VERIFIER_nondet_uchar() [L231] EXPR input_198 & mask_SORT_1 [L231] input_198 = input_198 & mask_SORT_1 [L232] input_199 = __VERIFIER_nondet_uchar() [L233] EXPR input_199 & mask_SORT_1 [L233] input_199 = input_199 & mask_SORT_1 [L234] input_245 = __VERIFIER_nondet_uchar() [L235] EXPR input_245 & mask_SORT_1 [L235] input_245 = input_245 & mask_SORT_1 [L236] input_248 = __VERIFIER_nondet_uchar() [L237] EXPR input_248 & mask_SORT_1 [L237] input_248 = input_248 & mask_SORT_1 [L238] input_249 = __VERIFIER_nondet_uchar() [L239] EXPR input_249 & mask_SORT_1 [L239] input_249 = input_249 & mask_SORT_1 [L240] input_272 = __VERIFIER_nondet_uchar() [L241] input_293 = __VERIFIER_nondet_uchar() [L242] input_314 = __VERIFIER_nondet_uchar() [L245] SORT_3 var_92_arg_0 = var_91; [L246] SORT_2 var_92_arg_1 = state_28; [L247] EXPR ((SORT_4)var_92_arg_0 << 8) | var_92_arg_1 [L247] SORT_4 var_92 = ((SORT_4)var_92_arg_0 << 8) | var_92_arg_1; [L248] EXPR var_92 & mask_SORT_4 [L248] var_92 = var_92 & mask_SORT_4 [L249] SORT_4 var_94_arg_0 = var_92; [L250] SORT_4 var_94_arg_1 = var_93; [L251] SORT_1 var_94 = var_94_arg_0 <= var_94_arg_1; [L252] SORT_1 var_95_arg_0 = ~state_89; [L253] EXPR var_95_arg_0 & mask_SORT_1 [L253] var_95_arg_0 = var_95_arg_0 & mask_SORT_1 [L254] SORT_1 var_95_arg_1 = ~var_94; [L255] EXPR var_95_arg_1 & mask_SORT_1 [L255] var_95_arg_1 = var_95_arg_1 & mask_SORT_1 [L256] EXPR var_95_arg_0 & var_95_arg_1 [L256] SORT_1 var_95 = var_95_arg_0 & var_95_arg_1; [L257] EXPR var_95 & mask_SORT_1 [L257] var_95 = var_95 & mask_SORT_1 [L258] SORT_1 bad_96_arg_0 = var_95; [L259] CALL __VERIFIER_assert(!(bad_96_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: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 04:23:30,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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 a57e2087ba2fb5712da688a78c58574dc68561b7154ad7e0d790d643e6e13ba4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:23:32,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:23:33,013 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-14 04:23:33,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:23:33,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:23:33,076 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:23:33,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:23:33,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:23:33,077 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:23:33,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:23:33,077 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:23:33,077 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:23:33,078 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:23:33,078 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:23:33,078 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:23:33,078 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:23:33,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:23:33,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:23:33,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:23:33,079 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:23:33,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:23:33,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:23:33,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:23:33,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:23:33,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:23:33,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:23:33,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:23:33,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:23:33,088 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:23:33,089 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:23:33,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:23:33,089 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:23:33,089 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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/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 -> a57e2087ba2fb5712da688a78c58574dc68561b7154ad7e0d790d643e6e13ba4 [2024-11-14 04:23:33,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:23:33,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:23:33,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:23:33,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:23:33,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:23:33,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c Unable to find full path for "g++" [2024-11-14 04:23:35,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:23:35,661 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:23:35,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c [2024-11-14 04:23:35,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data/bb3587ab7/2d9d07dba14e47f6950d404c63de0a76/FLAGd0bc746d3 [2024-11-14 04:23:35,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/data/bb3587ab7/2d9d07dba14e47f6950d404c63de0a76 [2024-11-14 04:23:35,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:23:35,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:23:35,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:23:35,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:23:35,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:23:35,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:23:35" (1/1) ... [2024-11-14 04:23:35,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40757d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:35, skipping insertion in model container [2024-11-14 04:23:35,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:23:35" (1/1) ... [2024-11-14 04:23:35,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:23:35,950 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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1172,1185] [2024-11-14 04:23:36,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:23:36,315 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:23:36,329 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_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.krebs.4.prop1-func-interl.c[1172,1185] [2024-11-14 04:23:36,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:23:36,622 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:23:36,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36 WrapperNode [2024-11-14 04:23:36,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:23:36,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:23:36,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:23:36,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:23:36,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,789 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1957 [2024-11-14 04:23:36,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:23:36,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:23:36,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:23:36,792 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:23:36,801 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:23:36,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:23:36,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:23:36,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:23:36,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (1/1) ... [2024-11-14 04:23:36,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:23:36,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:23:36,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:23:36,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:23:37,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:23:37,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:23:37,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:23:37,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:23:37,577 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:23:37,579 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:23:39,884 INFO L? ?]: Removed 85 outVars from TransFormulas that were not future-live. [2024-11-14 04:23:39,884 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:23:39,895 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:23:39,896 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:23:39,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:39 BoogieIcfgContainer [2024-11-14 04:23:39,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:23:39,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:23:39,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:23:39,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:23:39,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:23:35" (1/3) ... [2024-11-14 04:23:39,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4debd95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:39, skipping insertion in model container [2024-11-14 04:23:39,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:23:36" (2/3) ... [2024-11-14 04:23:39,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4debd95e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:39, skipping insertion in model container [2024-11-14 04:23:39,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:39" (3/3) ... [2024-11-14 04:23:39,914 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.krebs.4.prop1-func-interl.c [2024-11-14 04:23:39,930 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:23:39,933 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.krebs.4.prop1-func-interl.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:23:39,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:23:40,004 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;@24e4c9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:23:40,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:23:40,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:23:40,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-14 04:23:40,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:40,016 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-14 04:23:40,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:40,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:40,023 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-14 04:23:40,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:23:40,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066145615] [2024-11-14 04:23:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:40,037 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:23:40,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:23:40,041 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:23:40,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 04:23:40,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:40,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-14 04:23:40,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:40,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:23:40,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 04:23:40,882 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:23:40,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066145615] [2024-11-14 04:23:40,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2066145615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:23:40,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:23:40,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:23:40,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819502122] [2024-11-14 04:23:40,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:23:40,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:23:40,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:23:40,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:23:40,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:23:40,916 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:23:41,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:23:41,106 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-14 04:23:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:23:41,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-14 04:23:41,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:23:41,120 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:23:41,120 INFO L226 Difference]: Without dead ends: 10 [2024-11-14 04:23:41,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:23:41,127 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:23:41,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:23:41,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-14 04:23:41,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-14 04:23:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:23:41,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-14 04:23:41,166 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-14 04:23:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:23:41,166 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-14 04:23:41,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:23:41,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-14 04:23:41,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:23:41,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:41,168 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-14 04:23:41,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 04:23:41,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:23:41,369 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:41,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:41,370 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-14 04:23:41,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:23:41,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672635175] [2024-11-14 04:23:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:41,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:23:41,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:23:41,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:23:41,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-14 04:23:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:42,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 04:23:42,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:23:42,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:23:42,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:23:58,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:23:58,689 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-14 04:23:58,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672635175] [2024-11-14 04:23:58,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672635175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:23:58,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [315224794] [2024-11-14 04:23:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:58,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-14 04:23:58,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/cvc4 [2024-11-14 04:23:58,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-14 04:23:58,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-14 04:23:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:23:59,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-14 04:23:59,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:00,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:24:00,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:24:27,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:24:27,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [315224794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:24:27,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842901853] [2024-11-14 04:24:27,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:24:27,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:24:27,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:24:27,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:24:27,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:24:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:24:27,984 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 04:24:27,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:24:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:24:29,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:24:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:24:58,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842901853] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:24:58,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-14 04:24:58,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 15 [2024-11-14 04:24:58,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441418625] [2024-11-14 04:24:58,417 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-14 04:24:58,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-14 04:24:58,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-14 04:24:58,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-14 04:24:58,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=130, Unknown=26, NotChecked=0, Total=210 [2024-11-14 04:24:58,422 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:25:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:25:04,972 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-14 04:25:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-14 04:25:04,973 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-14 04:25:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:25:04,973 INFO L225 Difference]: With dead ends: 18 [2024-11-14 04:25:04,973 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 04:25:04,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 74.0s TimeCoverageRelationStatistics Valid=116, Invalid=238, Unknown=26, NotChecked=0, Total=380 [2024-11-14 04:25:04,975 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:25:04,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 31 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-14 04:25:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 04:25:04,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-14 04:25:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:25:04,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-14 04:25:04,983 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-14 04:25:04,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:25:04,983 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-14 04:25:04,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:25:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-14 04:25:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-14 04:25:04,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:25:04,984 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-14 04:25:04,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-14 04:25:05,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:05,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 04:25:05,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:25:05,585 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:25:05,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:25:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 2 times [2024-11-14 04:25:05,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:25:05,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683840801] [2024-11-14 04:25:05,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-14 04:25:05,589 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 04:25:05,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:25:05,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 04:25:05,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_811d041f-6d05-4e53-ab82-ea53cb7fbb1f/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-14 04:25:06,701 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-14 04:25:06,701 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 04:25:06,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-14 04:25:06,750 INFO L278 TraceCheckSpWp]: Computing forward predicates...