./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje --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 41f47466632cef79c6428d332b083f6bab28594818001ff9f9c3e4bbd8dd136a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:37:52,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:37:52,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 04:37:52,535 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:37:52,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:37:52,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:37:52,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:37:52,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:37:52,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:37:52,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:37:52,582 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:37:52,582 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:37:52,583 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:37:52,583 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:37:52,583 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:37:52,584 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:37:52,584 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:37:52,584 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:37:52,585 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:37:52,585 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:37:52,586 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:37:52,589 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:37:52,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:37:52,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:37:52,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:37:52,591 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:37:52,591 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:37:52,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:37:52,592 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:37:52,595 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:37:52,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:37:52,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:37:52,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:37:52,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:37:52,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:37:52,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:37:52,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:37:52,607 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:37:52,607 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:37:52,607 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:37:52,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:37:52,608 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:37:52,608 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:37:52,609 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:37:52,609 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f47466632cef79c6428d332b083f6bab28594818001ff9f9c3e4bbd8dd136a [2024-11-09 04:37:52,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:37:52,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:37:52,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:37:52,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:37:52,988 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:37:52,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c Unable to find full path for "g++" [2024-11-09 04:37:55,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:37:55,774 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:37:55,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c [2024-11-09 04:37:55,792 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data/5718ab245/419b0d1c810c4b7d8c87b2e9503fdf82/FLAG4a86b5071 [2024-11-09 04:37:55,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data/5718ab245/419b0d1c810c4b7d8c87b2e9503fdf82 [2024-11-09 04:37:55,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:37:55,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:37:55,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:37:55,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:37:55,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:37:55,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:37:55" (1/1) ... [2024-11-09 04:37:55,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf0002b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:55, skipping insertion in model container [2024-11-09 04:37:55,835 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:37:55" (1/1) ... [2024-11-09 04:37:55,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:37:56,174 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1244,1257] [2024-11-09 04:37:56,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:37:56,561 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:37:56,577 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_881d12da-ce5e-4446-8645-bb385735545f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1244,1257] [2024-11-09 04:37:56,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:37:56,783 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:37:56,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56 WrapperNode [2024-11-09 04:37:56,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:37:56,786 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:37:56,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:37:56,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:37:56,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:56,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,179 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1799 [2024-11-09 04:37:57,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:37:57,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:37:57,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:37:57,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:37:57,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,441 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:37:57,442 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:37:57,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:37:57,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:37:57,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (1/1) ... [2024-11-09 04:37:57,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:37:57,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:37:57,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:37:57,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:37:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:37:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:37:57,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:37:57,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:37:57,872 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:37:57,875 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:38:00,392 INFO L? ?]: Removed 1027 outVars from TransFormulas that were not future-live. [2024-11-09 04:38:00,392 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:38:02,944 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:38:02,944 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:38:02,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:02 BoogieIcfgContainer [2024-11-09 04:38:02,945 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:38:02,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:38:02,949 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:38:02,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:38:02,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:37:55" (1/3) ... [2024-11-09 04:38:02,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b72a5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:02, skipping insertion in model container [2024-11-09 04:38:02,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:37:56" (2/3) ... [2024-11-09 04:38:02,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b72a5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:02, skipping insertion in model container [2024-11-09 04:38:02,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:02" (3/3) ... [2024-11-09 04:38:02,956 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal1.c [2024-11-09 04:38:02,984 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:38:02,984 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:38:03,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:38:03,082 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;@7f5678e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:38:03,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:38:03,089 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) [2024-11-09 04:38:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:38:03,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:03,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:38:03,098 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:03,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash 48577062, now seen corresponding path program 1 times [2024-11-09 04:38:03,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:03,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197936842] [2024-11-09 04:38:03,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:03,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:38:03,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:38:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:38:04,255 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:38:04,258 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:38:04,260 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:38:04,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:38:04,268 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:38:04,358 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 04:38:04,378 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:38:04,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:38:04 BoogieIcfgContainer [2024-11-09 04:38:04,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:38:04,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:38:04,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:38:04,387 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:38:04,388 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:02" (3/4) ... [2024-11-09 04:38:04,391 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:38:04,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:38:04,394 INFO L158 Benchmark]: Toolchain (without parser) took 8576.99ms. Allocated memory was 134.2MB in the beginning and 287.3MB in the end (delta: 153.1MB). Free memory was 99.6MB in the beginning and 200.1MB in the end (delta: -100.6MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2024-11-09 04:38:04,395 INFO L158 Benchmark]: CDTParser took 1.57ms. Allocated memory is still 134.2MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:38:04,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 966.31ms. Allocated memory is still 134.2MB. Free memory was 99.2MB in the beginning and 58.1MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 04:38:04,397 INFO L158 Benchmark]: Boogie Procedure Inliner took 395.25ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 58.1MB in the beginning and 116.2MB in the end (delta: -58.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-11-09 04:38:04,398 INFO L158 Benchmark]: Boogie Preprocessor took 260.04ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 104.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 04:38:04,400 INFO L158 Benchmark]: RCFGBuilder took 5502.63ms. Allocated memory was 172.0MB in the beginning and 287.3MB in the end (delta: 115.3MB). Free memory was 104.5MB in the beginning and 156.9MB in the end (delta: -52.5MB). Peak memory consumption was 137.2MB. Max. memory is 16.1GB. [2024-11-09 04:38:04,400 INFO L158 Benchmark]: TraceAbstraction took 1436.63ms. Allocated memory is still 287.3MB. Free memory was 155.9MB in the beginning and 200.1MB in the end (delta: -44.3MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2024-11-09 04:38:04,401 INFO L158 Benchmark]: Witness Printer took 5.81ms. Allocated memory is still 287.3MB. Free memory is still 200.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:38:04,405 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.57ms. Allocated memory is still 134.2MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 966.31ms. Allocated memory is still 134.2MB. Free memory was 99.2MB in the beginning and 58.1MB in the end (delta: 41.1MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 395.25ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 58.1MB in the beginning and 116.2MB in the end (delta: -58.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 260.04ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 104.5MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 5502.63ms. Allocated memory was 172.0MB in the beginning and 287.3MB in the end (delta: 115.3MB). Free memory was 104.5MB in the beginning and 156.9MB in the end (delta: -52.5MB). Peak memory consumption was 137.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1436.63ms. Allocated memory is still 287.3MB. Free memory was 155.9MB in the beginning and 200.1MB in the end (delta: -44.3MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Witness Printer took 5.81ms. Allocated memory is still 287.3MB. Free memory is still 200.1MB. 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 261, overapproximation of bitwiseAnd at line 190. 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_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 32); [L30] const SORT_6 msb_SORT_6 = (SORT_6)1 << (32 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 4); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (4 - 1); [L35] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 64); [L36] const SORT_14 msb_SORT_14 = (SORT_14)1 << (64 - 1); [L38] const SORT_1 var_56 = 0; [L39] const SORT_6 var_60 = 0; [L40] const SORT_1 var_73 = 1; [L41] const SORT_14 var_77 = 0; [L42] const SORT_10 var_98 = 0; [L44] SORT_1 input_2; [L45] SORT_1 input_3; [L46] SORT_1 input_4; [L47] SORT_1 input_5; [L48] SORT_6 input_7; [L49] SORT_6 input_8; [L50] SORT_1 input_9; [L51] SORT_10 input_11; [L52] SORT_1 input_12; [L53] SORT_1 input_13; [L54] SORT_14 input_15; [L55] SORT_10 input_16; [L56] SORT_1 input_17; [L57] SORT_6 input_18; [L58] SORT_1 input_19; [L59] SORT_10 input_20; [L60] SORT_10 input_21; [L61] SORT_6 input_22; [L62] SORT_6 input_23; [L63] SORT_1 input_24; [L64] SORT_14 input_25; [L65] SORT_10 input_26; [L66] SORT_1 input_27; [L67] SORT_6 input_28; [L68] SORT_6 input_29; [L69] SORT_6 input_30; [L70] SORT_6 input_31; [L71] SORT_10 input_32; [L72] SORT_10 input_33; [L73] SORT_10 input_34; [L74] SORT_10 input_35; [L75] SORT_10 input_36; [L76] SORT_10 input_37; [L77] SORT_10 input_38; [L78] SORT_10 input_39; [L79] SORT_1 input_40; [L80] SORT_1 input_41; [L81] SORT_1 input_42; [L82] SORT_1 input_43; [L83] SORT_1 input_44; [L84] SORT_1 input_45; [L85] SORT_14 input_46; [L86] SORT_14 input_47; [L87] SORT_14 input_48; [L88] SORT_14 input_49; [L89] SORT_6 input_50; [L90] SORT_6 input_51; [L91] SORT_1 input_52; [L92] SORT_1 input_53; [L93] SORT_1 input_54; [L94] SORT_1 input_55; [L96] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L96] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L97] EXPR __VERIFIER_nondet_uint() & mask_SORT_6 [L97] SORT_6 state_61 = __VERIFIER_nondet_uint() & mask_SORT_6; [L98] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L98] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L99] EXPR __VERIFIER_nondet_uint() & mask_SORT_6 [L99] SORT_6 state_66 = __VERIFIER_nondet_uint() & mask_SORT_6; [L100] EXPR __VERIFIER_nondet_ulong() & mask_SORT_14 [L100] SORT_14 state_78 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L101] EXPR __VERIFIER_nondet_ulong() & mask_SORT_14 [L101] SORT_14 state_81 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L102] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L102] SORT_1 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L103] SORT_1 state_90 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L104] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L105] SORT_10 state_99 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L106] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L106] SORT_10 state_102 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L107] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L107] SORT_1 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L108] SORT_1 state_123 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L109] SORT_10 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L110] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L110] SORT_10 state_138 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L111] EXPR __VERIFIER_nondet_uint() & mask_SORT_6 [L111] SORT_6 state_148 = __VERIFIER_nondet_uint() & mask_SORT_6; [L112] EXPR __VERIFIER_nondet_uint() & mask_SORT_6 [L112] SORT_6 state_156 = __VERIFIER_nondet_uint() & mask_SORT_6; [L113] EXPR __VERIFIER_nondet_ulong() & mask_SORT_14 [L113] SORT_14 state_170 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L114] EXPR __VERIFIER_nondet_ulong() & mask_SORT_14 [L114] SORT_14 state_173 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L115] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L115] SORT_1 state_176 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L116] SORT_10 state_179 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L117] SORT_1 state_184 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L118] SORT_1 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L119] SORT_10 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L120] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L120] SORT_1 state_212 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L121] SORT_10 state_217 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L122] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L122] SORT_1 state_223 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] EXPR __VERIFIER_nondet_uchar() & mask_SORT_10 [L123] SORT_10 state_238 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L124] EXPR __VERIFIER_nondet_uint() & mask_SORT_6 [L124] SORT_6 state_249 = __VERIFIER_nondet_uint() & mask_SORT_6; [L125] EXPR __VERIFIER_nondet_uint() & mask_SORT_6 [L125] SORT_6 state_282 = __VERIFIER_nondet_uint() & mask_SORT_6; [L127] SORT_1 init_58_arg_1 = var_56; [L128] state_57 = init_58_arg_1 [L129] SORT_6 init_62_arg_1 = var_60; [L130] state_61 = init_62_arg_1 [L131] SORT_1 init_64_arg_1 = var_56; [L132] state_63 = init_64_arg_1 [L133] SORT_6 init_67_arg_1 = var_60; [L134] state_66 = init_67_arg_1 [L135] SORT_14 init_79_arg_1 = var_77; [L136] state_78 = init_79_arg_1 [L137] SORT_14 init_82_arg_1 = var_77; [L138] state_81 = init_82_arg_1 [L139] SORT_1 init_85_arg_1 = var_56; [L140] state_84 = init_85_arg_1 [L141] SORT_1 init_91_arg_1 = var_56; [L142] state_90 = init_91_arg_1 [L143] SORT_1 init_94_arg_1 = var_56; [L144] state_93 = init_94_arg_1 [L145] SORT_10 init_100_arg_1 = var_98; [L146] state_99 = init_100_arg_1 [L147] SORT_10 init_103_arg_1 = var_98; [L148] state_102 = init_103_arg_1 [L149] SORT_1 init_117_arg_1 = var_56; [L150] state_116 = init_117_arg_1 [L151] SORT_1 init_124_arg_1 = var_56; [L152] state_123 = init_124_arg_1 [L153] SORT_10 init_136_arg_1 = var_98; [L154] state_135 = init_136_arg_1 [L155] SORT_10 init_139_arg_1 = var_98; [L156] state_138 = init_139_arg_1 [L157] SORT_6 init_149_arg_1 = var_60; [L158] state_148 = init_149_arg_1 [L159] SORT_6 init_157_arg_1 = var_60; [L160] state_156 = init_157_arg_1 [L161] SORT_14 init_171_arg_1 = var_77; [L162] state_170 = init_171_arg_1 [L163] SORT_14 init_174_arg_1 = var_77; [L164] state_173 = init_174_arg_1 [L165] SORT_1 init_177_arg_1 = var_56; [L166] state_176 = init_177_arg_1 [L167] SORT_10 init_180_arg_1 = var_98; [L168] state_179 = init_180_arg_1 [L169] SORT_1 init_185_arg_1 = var_56; [L170] state_184 = init_185_arg_1 [L171] SORT_1 init_192_arg_1 = var_56; [L172] state_191 = init_192_arg_1 [L173] SORT_10 init_197_arg_1 = var_98; [L174] state_196 = init_197_arg_1 [L175] SORT_1 init_213_arg_1 = var_56; [L176] state_212 = init_213_arg_1 [L177] SORT_10 init_218_arg_1 = var_98; [L178] state_217 = init_218_arg_1 [L179] SORT_1 init_224_arg_1 = var_56; [L180] state_223 = init_224_arg_1 [L181] SORT_10 init_239_arg_1 = var_98; [L182] state_238 = init_239_arg_1 [L183] SORT_6 init_250_arg_1 = var_60; [L184] state_249 = init_250_arg_1 [L185] SORT_6 init_283_arg_1 = var_60; [L186] state_282 = init_283_arg_1 VAL [mask_SORT_1=1, mask_SORT_6=-1, state_102=0, state_116=0, state_123=0, state_135=0, state_138=0, state_148=0, state_156=0, state_170=0, state_173=0, state_176=0, state_179=0, state_184=0, state_191=0, state_196=0, state_212=0, state_217=0, state_223=0, state_238=0, state_249=0, state_282=0, state_57=0, state_61=0, state_63=0, state_66=0, state_78=0, state_81=0, state_84=0, state_90=0, state_93=0, state_99=0, var_56=0, var_60=0, var_73=1, var_77=0, var_98=0] [L189] input_2 = __VERIFIER_nondet_uchar() [L190] EXPR input_2 & mask_SORT_1 [L190] input_2 = input_2 & mask_SORT_1 [L191] input_3 = __VERIFIER_nondet_uchar() [L192] input_4 = __VERIFIER_nondet_uchar() [L193] input_5 = __VERIFIER_nondet_uchar() [L194] input_7 = __VERIFIER_nondet_uint() [L195] input_8 = __VERIFIER_nondet_uint() [L196] input_9 = __VERIFIER_nondet_uchar() [L197] EXPR input_9 & mask_SORT_1 [L197] input_9 = input_9 & mask_SORT_1 [L198] input_11 = __VERIFIER_nondet_uchar() [L199] input_12 = __VERIFIER_nondet_uchar() [L200] input_13 = __VERIFIER_nondet_uchar() [L201] input_15 = __VERIFIER_nondet_ulong() [L202] input_16 = __VERIFIER_nondet_uchar() [L203] input_17 = __VERIFIER_nondet_uchar() [L204] input_18 = __VERIFIER_nondet_uint() [L205] input_19 = __VERIFIER_nondet_uchar() [L206] input_20 = __VERIFIER_nondet_uchar() [L207] input_21 = __VERIFIER_nondet_uchar() [L208] input_22 = __VERIFIER_nondet_uint() [L209] input_23 = __VERIFIER_nondet_uint() [L210] input_24 = __VERIFIER_nondet_uchar() [L211] input_25 = __VERIFIER_nondet_ulong() [L212] input_26 = __VERIFIER_nondet_uchar() [L213] input_27 = __VERIFIER_nondet_uchar() [L214] input_28 = __VERIFIER_nondet_uint() [L215] input_29 = __VERIFIER_nondet_uint() [L216] input_30 = __VERIFIER_nondet_uint() [L217] input_31 = __VERIFIER_nondet_uint() [L218] input_32 = __VERIFIER_nondet_uchar() [L219] input_33 = __VERIFIER_nondet_uchar() [L220] input_34 = __VERIFIER_nondet_uchar() [L221] input_35 = __VERIFIER_nondet_uchar() [L222] input_36 = __VERIFIER_nondet_uchar() [L223] input_37 = __VERIFIER_nondet_uchar() [L224] input_38 = __VERIFIER_nondet_uchar() [L225] input_39 = __VERIFIER_nondet_uchar() [L226] input_40 = __VERIFIER_nondet_uchar() [L227] input_41 = __VERIFIER_nondet_uchar() [L228] input_42 = __VERIFIER_nondet_uchar() [L229] input_43 = __VERIFIER_nondet_uchar() [L230] input_44 = __VERIFIER_nondet_uchar() [L231] input_45 = __VERIFIER_nondet_uchar() [L232] input_46 = __VERIFIER_nondet_ulong() [L233] input_47 = __VERIFIER_nondet_ulong() [L234] input_48 = __VERIFIER_nondet_ulong() [L235] input_49 = __VERIFIER_nondet_ulong() [L236] input_50 = __VERIFIER_nondet_uint() [L237] input_51 = __VERIFIER_nondet_uint() [L238] input_52 = __VERIFIER_nondet_uchar() [L239] input_53 = __VERIFIER_nondet_uchar() [L240] input_54 = __VERIFIER_nondet_uchar() [L241] input_55 = __VERIFIER_nondet_uchar() [L244] SORT_1 var_59_arg_0 = state_57; [L245] SORT_1 var_59 = ~var_59_arg_0; [L246] SORT_1 var_65_arg_0 = state_63; [L247] SORT_6 var_65_arg_1 = state_61; [L248] SORT_6 var_65_arg_2 = input_18; [L249] SORT_6 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L250] EXPR var_65 & mask_SORT_6 [L250] var_65 = var_65 & mask_SORT_6 [L251] SORT_1 var_68_arg_0 = state_63; [L252] SORT_6 var_68_arg_1 = state_66; [L253] SORT_6 var_68_arg_2 = input_18; [L254] SORT_6 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L255] EXPR var_68 & mask_SORT_6 [L255] var_68 = var_68 & mask_SORT_6 [L256] SORT_6 var_69_arg_0 = var_65; [L257] SORT_6 var_69_arg_1 = var_68; [L258] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L259] SORT_1 var_70_arg_0 = var_59; [L260] SORT_1 var_70_arg_1 = var_69; [L261] EXPR var_70_arg_0 | var_70_arg_1 [L261] SORT_1 var_70 = var_70_arg_0 | var_70_arg_1; [L262] SORT_1 var_74_arg_0 = var_70; [L263] SORT_1 var_74 = ~var_74_arg_0; [L264] SORT_1 var_75_arg_0 = var_73; [L265] SORT_1 var_75_arg_1 = var_74; [L266] EXPR var_75_arg_0 & var_75_arg_1 [L266] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L267] EXPR var_75 & mask_SORT_1 [L267] var_75 = var_75 & mask_SORT_1 [L268] SORT_1 bad_76_arg_0 = var_75; [L269] CALL __VERIFIER_assert(!(bad_76_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: 1.2s, 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, 0.6s 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 [2024-11-09 04:38:04,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje --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 41f47466632cef79c6428d332b083f6bab28594818001ff9f9c3e4bbd8dd136a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:38:07,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:38:07,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-09 04:38:07,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:38:07,419 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:38:07,466 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:38:07,467 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:38:07,468 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:38:07,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:38:07,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:38:07,471 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:38:07,471 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:38:07,472 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:38:07,472 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:38:07,475 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:38:07,476 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:38:07,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:38:07,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:38:07,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:38:07,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:38:07,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:38:07,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:38:07,483 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:38:07,483 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:38:07,484 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:38:07,484 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:38:07,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:38:07,485 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:38:07,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:38:07,488 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:38:07,489 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:38:07,490 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:38:07,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:38:07,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:38:07,492 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:38:07,492 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:38:07,492 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:38:07,493 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:38:07,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:38:07,493 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:38:07,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41f47466632cef79c6428d332b083f6bab28594818001ff9f9c3e4bbd8dd136a [2024-11-09 04:38:08,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:38:08,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:38:08,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:38:08,050 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:38:08,050 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:38:08,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c Unable to find full path for "g++" [2024-11-09 04:38:10,730 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:38:11,172 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:38:11,173 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c [2024-11-09 04:38:11,188 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data/17f893b13/fe4b16d739d848c68d43047594afb33c/FLAG0c070351b [2024-11-09 04:38:11,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/data/17f893b13/fe4b16d739d848c68d43047594afb33c [2024-11-09 04:38:11,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:38:11,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:38:11,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:38:11,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:38:11,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:38:11,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:38:11" (1/1) ... [2024-11-09 04:38:11,226 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4557820a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:11, skipping insertion in model container [2024-11-09 04:38:11,226 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:38:11" (1/1) ... [2024-11-09 04:38:11,298 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:38:11,618 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_881d12da-ce5e-4446-8645-bb385735545f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1244,1257] [2024-11-09 04:38:12,059 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:38:12,074 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:38:12,095 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_881d12da-ce5e-4446-8645-bb385735545f/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal1.c[1244,1257] [2024-11-09 04:38:12,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:38:12,297 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:38:12,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12 WrapperNode [2024-11-09 04:38:12,302 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:38:12,303 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:38:12,304 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:38:12,304 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:38:12,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,443 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2024-11-09 04:38:12,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:38:12,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:38:12,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:38:12,449 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:38:12,469 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,573 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,601 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:38:12,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:38:12,625 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:38:12,625 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:38:12,626 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (1/1) ... [2024-11-09 04:38:12,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:38:12,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:12,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:38:12,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:38:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:38:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:38:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:38:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:38:13,081 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:38:13,084 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:38:14,427 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-09 04:38:14,427 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:38:14,440 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:38:14,440 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:38:14,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:14 BoogieIcfgContainer [2024-11-09 04:38:14,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:38:14,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:38:14,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:38:14,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:38:14,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:38:11" (1/3) ... [2024-11-09 04:38:14,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58328907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:14, skipping insertion in model container [2024-11-09 04:38:14,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:12" (2/3) ... [2024-11-09 04:38:14,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58328907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:14, skipping insertion in model container [2024-11-09 04:38:14,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:14" (3/3) ... [2024-11-09 04:38:14,454 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal1.c [2024-11-09 04:38:14,480 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:38:14,481 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:38:14,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:38:14,586 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;@4575a86e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:38:14,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:38:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-09 04:38:14,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 04:38:14,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:14,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 04:38:14,603 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:14,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:14,616 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-09 04:38:14,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:38:14,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600045535] [2024-11-09 04:38:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:14,634 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 [2024-11-09 04:38:14,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:38:14,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:38:14,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:38:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:15,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 04:38:15,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:15,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:38:15,471 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:38:15,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600045535] [2024-11-09 04:38:15,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600045535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:15,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:15,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:38:15,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82743342] [2024-11-09 04:38:15,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:15,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:38:15,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:38:15,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:38:15,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:38:15,526 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2024-11-09 04:38:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:15,886 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2024-11-09 04:38:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:38:15,890 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 [2024-11-09 04:38:15,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:15,899 INFO L225 Difference]: With dead ends: 19 [2024-11-09 04:38:15,900 INFO L226 Difference]: Without dead ends: 10 [2024-11-09 04:38:15,903 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 [2024-11-09 04:38:15,910 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:15,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 04:38:15,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-09 04:38:15,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-09 04:38:15,951 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) [2024-11-09 04:38:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-09 04:38:15,954 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-09 04:38:15,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:15,955 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-09 04:38:15,956 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) [2024-11-09 04:38:15,956 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-09 04:38:15,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:38:15,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:15,958 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:15,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:38:16,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:38:16,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:16,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-09 04:38:16,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:38:16,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279130181] [2024-11-09 04:38:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:16,162 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 [2024-11-09 04:38:16,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:38:16,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:38:16,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:38:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:16,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 04:38:16,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:17,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:17,080 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:18,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 04:38:18,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [279130181] [2024-11-09 04:38:18,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [279130181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:18,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [581544444] [2024-11-09 04:38:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:18,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 04:38:18,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 04:38:18,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 04:38:18,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 04:38:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:19,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 04:38:19,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:19,761 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:21,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:21,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [581544444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:21,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543801900] [2024-11-09 04:38:21,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:21,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:38:21,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:21,288 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:38:21,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:38:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:21,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 04:38:21,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:38:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:22,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:38:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:23,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543801900] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:38:23,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 04:38:23,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2024-11-09 04:38:23,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309919007] [2024-11-09 04:38:23,549 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 04:38:23,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 04:38:23,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 04:38:23,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 04:38:23,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:38:23,552 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:24,022 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-09 04:38:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:38:24,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 04:38:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:24,024 INFO L225 Difference]: With dead ends: 15 [2024-11-09 04:38:24,024 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 04:38:24,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-09 04:38:24,027 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:24,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 04:38:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 04:38:24,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-09 04:38:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-09 04:38:24,033 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-09 04:38:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:24,033 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-09 04:38:24,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:38:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-09 04:38:24,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:38:24,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:24,035 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-09 04:38:24,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:38:24,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 04:38:24,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-09 04:38:24,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 04:38:24,640 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:24,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2024-11-09 04:38:24,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:38:24,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234609817] [2024-11-09 04:38:24,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 04:38:24,644 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 [2024-11-09 04:38:24,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:38:24,647 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 04:38:24,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_881d12da-ce5e-4446-8645-bb385735545f/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 04:38:25,483 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 04:38:25,484 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:38:25,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 04:38:25,531 INFO L278 TraceCheckSpWp]: Computing forward predicates...