./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2 --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 4e02c03b322d505b0cc468468d173ed639fc016c75e6d327c68381184cb6fd73 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:39:10,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:39:11,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:39:11,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:39:11,015 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:39:11,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:39:11,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:39:11,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:39:11,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:39:11,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:39:11,050 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:39:11,052 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:39:11,053 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:39:11,054 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:39:11,055 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:39:11,058 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:39:11,058 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:39:11,059 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:39:11,059 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:39:11,059 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:39:11,059 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:39:11,061 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:39:11,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:39:11,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:39:11,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:39:11,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:39:11,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:39:11,063 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:39:11,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:39:11,063 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:39:11,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:39:11,064 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:39:11,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:39:11,064 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:39:11,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:39:11,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:11,067 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:39:11,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:39:11,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:39:11,068 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:39:11,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:39:11,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:39:11,069 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:39:11,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:39:11,070 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_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e02c03b322d505b0cc468468d173ed639fc016c75e6d327c68381184cb6fd73 [2024-11-02 12:39:11,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:39:11,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:39:11,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:39:11,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:39:11,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:39:11,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c Unable to find full path for "g++" [2024-11-02 12:39:13,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:39:13,828 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:39:13,829 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2024-11-02 12:39:13,848 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data/da04601cf/22b3715269194067851311b0e31acf33/FLAGa75576e60 [2024-11-02 12:39:13,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data/da04601cf/22b3715269194067851311b0e31acf33 [2024-11-02 12:39:13,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:39:13,874 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:39:13,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:13,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:39:13,884 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:39:13,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:13" (1/1) ... [2024-11-02 12:39:13,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb406e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:13, skipping insertion in model container [2024-11-02 12:39:13,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:13" (1/1) ... [2024-11-02 12:39:13,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:39:14,187 WARN L251 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_a6e010ca-bcf7-49ce-be6b-10672a232af2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1266,1279] [2024-11-02 12:39:14,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:14,398 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:39:14,410 WARN L251 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_a6e010ca-bcf7-49ce-be6b-10672a232af2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1266,1279] [2024-11-02 12:39:14,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:14,535 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:39:14,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14 WrapperNode [2024-11-02 12:39:14,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:14,537 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:39:14,537 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:39:14,537 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:39:14,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,684 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 747 [2024-11-02 12:39:14,684 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:39:14,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:39:14,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:39:14,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:39:14,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:39:14,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:39:14,815 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:39:14,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:39:14,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (1/1) ... [2024-11-02 12:39:14,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:14,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:39:14,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:39:14,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:39:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:39:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:39:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:39:14,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:39:15,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:39:15,075 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:39:16,196 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-02 12:39:16,196 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:39:17,104 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:39:17,105 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:39:17,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:17 BoogieIcfgContainer [2024-11-02 12:39:17,106 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:39:17,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:39:17,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:39:17,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:39:17,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:39:13" (1/3) ... [2024-11-02 12:39:17,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf539c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:39:17, skipping insertion in model container [2024-11-02 12:39:17,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:14" (2/3) ... [2024-11-02 12:39:17,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf539c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:39:17, skipping insertion in model container [2024-11-02 12:39:17,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:17" (3/3) ... [2024-11-02 12:39:17,117 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2024-11-02 12:39:17,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:39:17,138 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:39:17,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:39:17,255 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;@e020218, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:39:17,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:39:17,260 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) [2024-11-02 12:39:17,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-02 12:39:17,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:17,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-02 12:39:17,267 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:39:17,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:17,273 INFO L85 PathProgramCache]: Analyzing trace with hash 20713484, now seen corresponding path program 1 times [2024-11-02 12:39:17,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:39:17,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231652198] [2024-11-02 12:39:17,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:17,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:39:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:39:17,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:39:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:39:17,933 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:39:17,939 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:39:17,940 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:39:17,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:39:17,948 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:39:17,992 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:39:18,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:39:18 BoogieIcfgContainer [2024-11-02 12:39:18,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:39:18,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:39:18,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:39:18,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:39:18,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:17" (3/4) ... [2024-11-02 12:39:18,005 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:39:18,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:39:18,009 INFO L158 Benchmark]: Toolchain (without parser) took 4134.15ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 123.5MB in the beginning and 121.5MB in the end (delta: 2.0MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-11-02 12:39:18,009 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:18,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 659.06ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 99.8MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-02 12:39:18,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 147.73ms. Allocated memory is still 161.5MB. Free memory was 99.8MB in the beginning and 85.5MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-02 12:39:18,012 INFO L158 Benchmark]: Boogie Preprocessor took 128.58ms. Allocated memory is still 161.5MB. Free memory was 85.5MB in the beginning and 120.9MB in the end (delta: -35.4MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-02 12:39:18,014 INFO L158 Benchmark]: RCFGBuilder took 2291.32ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 120.6MB in the beginning and 93.5MB in the end (delta: 27.1MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2024-11-02 12:39:18,014 INFO L158 Benchmark]: TraceAbstraction took 892.08ms. Allocated memory is still 201.3MB. Free memory was 92.5MB in the beginning and 121.5MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:18,014 INFO L158 Benchmark]: Witness Printer took 6.22ms. Allocated memory is still 201.3MB. Free memory is still 121.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:39:18,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 111.1MB. Free memory is still 57.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 659.06ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 99.8MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 147.73ms. Allocated memory is still 161.5MB. Free memory was 99.8MB in the beginning and 85.5MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 128.58ms. Allocated memory is still 161.5MB. Free memory was 85.5MB in the beginning and 120.9MB in the end (delta: -35.4MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2291.32ms. Allocated memory was 161.5MB in the beginning and 201.3MB in the end (delta: 39.8MB). Free memory was 120.6MB in the beginning and 93.5MB in the end (delta: 27.1MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. * TraceAbstraction took 892.08ms. Allocated memory is still 201.3MB. Free memory was 92.5MB in the beginning and 121.5MB in the end (delta: -29.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.22ms. Allocated memory is still 201.3MB. Free memory is still 121.5MB. 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 165, overapproximation of bitwiseAnd at line 152. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L36] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L38] const SORT_69 mask_SORT_69 = (SORT_69)-1 >> (sizeof(SORT_69) * 8 - 10); [L39] const SORT_69 msb_SORT_69 = (SORT_69)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_21 = 1; [L44] const SORT_69 var_70 = 0; [L45] const SORT_10 var_97 = 104; [L46] const SORT_10 var_151 = 1; [L48] SORT_1 input_2; [L49] SORT_3 input_4; [L50] SORT_1 input_5; [L51] SORT_1 input_6; [L52] SORT_1 input_29; [L53] SORT_31 input_32; [L54] SORT_1 input_34; [L55] SORT_31 input_36; [L56] SORT_1 input_38; [L57] SORT_1 input_44; [L58] SORT_1 input_46; [L59] SORT_1 input_48; [L60] SORT_3 input_52; [L61] SORT_1 input_55; [L62] SORT_1 input_65; [L63] SORT_1 input_73; [L64] SORT_1 input_79; [L65] SORT_1 input_80; [L66] SORT_1 input_91; [L67] SORT_1 input_92; [L68] SORT_1 input_93; [L69] SORT_1 input_107; [L70] SORT_1 input_113; [L71] SORT_1 input_119; [L72] SORT_1 input_125; [L73] SORT_1 input_126; [L74] SORT_1 input_127; [L75] SORT_1 input_141; [L76] SORT_69 input_149; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L78] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L79] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L80] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L81] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L82] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L83] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L84] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L85] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L86] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L87] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L88] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L89] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_ushort() & mask_SORT_69 [L90] SORT_69 state_71 = __VERIFIER_nondet_ushort() & mask_SORT_69; [L92] SORT_1 init_9_arg_1 = var_7; [L93] state_8 = init_9_arg_1 [L94] SORT_1 init_15_arg_1 = var_7; [L95] state_14 = init_15_arg_1 [L96] SORT_1 init_26_arg_1 = var_7; [L97] state_25 = init_26_arg_1 [L98] SORT_1 init_28_arg_1 = var_7; [L99] state_27 = init_28_arg_1 [L100] SORT_1 init_41_arg_1 = var_7; [L101] state_40 = init_41_arg_1 [L102] SORT_1 init_43_arg_1 = var_7; [L103] state_42 = init_43_arg_1 [L104] SORT_1 init_51_arg_1 = var_21; [L105] state_50 = init_51_arg_1 [L106] SORT_1 init_58_arg_1 = var_7; [L107] state_57 = init_58_arg_1 [L108] SORT_1 init_60_arg_1 = var_7; [L109] state_59 = init_60_arg_1 [L110] SORT_1 init_62_arg_1 = var_7; [L111] state_61 = init_62_arg_1 [L112] SORT_1 init_64_arg_1 = var_7; [L113] state_63 = init_64_arg_1 [L114] SORT_1 init_68_arg_1 = var_7; [L115] state_67 = init_68_arg_1 [L116] SORT_69 init_72_arg_1 = var_70; [L117] state_71 = init_72_arg_1 VAL [mask_SORT_1=1, mask_SORT_69=1023, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_63=0, state_67=0, state_71=0, state_8=0, var_12=0, var_151=1, var_21=1, var_70=0, var_7=0, var_97=104] [L120] input_2 = __VERIFIER_nondet_uchar() [L121] input_4 = __VERIFIER_nondet_uchar() [L122] input_5 = __VERIFIER_nondet_uchar() [L123] input_6 = __VERIFIER_nondet_uchar() [L124] input_29 = __VERIFIER_nondet_uchar() [L125] input_32 = __VERIFIER_nondet_uchar() [L126] input_34 = __VERIFIER_nondet_uchar() [L127] input_36 = __VERIFIER_nondet_uchar() [L128] input_38 = __VERIFIER_nondet_uchar() [L129] input_44 = __VERIFIER_nondet_uchar() [L130] input_46 = __VERIFIER_nondet_uchar() [L131] input_48 = __VERIFIER_nondet_uchar() [L132] input_52 = __VERIFIER_nondet_uchar() [L133] input_55 = __VERIFIER_nondet_uchar() [L134] input_65 = __VERIFIER_nondet_uchar() [L135] input_73 = __VERIFIER_nondet_uchar() [L136] input_79 = __VERIFIER_nondet_uchar() [L137] input_80 = __VERIFIER_nondet_uchar() [L138] input_91 = __VERIFIER_nondet_uchar() [L139] input_92 = __VERIFIER_nondet_uchar() [L140] input_93 = __VERIFIER_nondet_uchar() [L141] input_107 = __VERIFIER_nondet_uchar() [L142] input_113 = __VERIFIER_nondet_uchar() [L143] input_119 = __VERIFIER_nondet_uchar() [L144] input_125 = __VERIFIER_nondet_uchar() [L145] input_126 = __VERIFIER_nondet_uchar() [L146] input_127 = __VERIFIER_nondet_uchar() [L147] input_141 = __VERIFIER_nondet_uchar() [L148] input_149 = __VERIFIER_nondet_ushort() [L151] SORT_1 var_11_arg_0 = state_8; [L152] EXPR var_11_arg_0 & mask_SORT_1 [L152] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L153] SORT_10 var_11 = var_11_arg_0; [L154] SORT_10 var_13_arg_0 = var_11; [L155] SORT_10 var_13_arg_1 = var_12; [L156] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L157] SORT_1 var_16_arg_0 = state_14; [L158] EXPR var_16_arg_0 & mask_SORT_1 [L158] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L159] SORT_10 var_16 = var_16_arg_0; [L160] SORT_10 var_17_arg_0 = var_16; [L161] SORT_10 var_17_arg_1 = var_12; [L162] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L163] SORT_1 var_18_arg_0 = var_13; [L164] SORT_1 var_18_arg_1 = var_17; [L165] EXPR var_18_arg_0 | var_18_arg_1 [L165] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L166] SORT_1 var_22_arg_0 = var_18; [L167] SORT_1 var_22 = ~var_22_arg_0; [L168] SORT_1 var_23_arg_0 = var_21; [L169] SORT_1 var_23_arg_1 = var_22; [L170] EXPR var_23_arg_0 & var_23_arg_1 [L170] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L171] EXPR var_23 & mask_SORT_1 [L171] var_23 = var_23 & mask_SORT_1 [L172] SORT_1 bad_24_arg_0 = var_23; [L173] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-02 12:39:18,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2 --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 4e02c03b322d505b0cc468468d173ed639fc016c75e6d327c68381184cb6fd73 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:39:20,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:39:20,904 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-02 12:39:20,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:39:20,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:39:20,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:39:20,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:39:20,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:39:20,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:39:20,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:39:20,965 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:39:20,966 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:39:20,966 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:39:20,967 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:39:20,967 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:39:20,971 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:39:20,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:39:20,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:39:20,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:39:20,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:39:20,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:39:20,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:39:20,977 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:39:20,977 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:39:20,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:39:20,978 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:39:20,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:39:20,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:39:20,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:39:20,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:39:20,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:39:20,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:39:20,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:20,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:39:20,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:39:20,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:39:20,982 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:39:20,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:39:20,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:39:20,985 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:39:20,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:39:20,987 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e02c03b322d505b0cc468468d173ed639fc016c75e6d327c68381184cb6fd73 [2024-11-02 12:39:21,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:39:21,435 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:39:21,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:39:21,439 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:39:21,440 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:39:21,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c Unable to find full path for "g++" [2024-11-02 12:39:23,680 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:39:23,999 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:39:24,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2024-11-02 12:39:24,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data/a1f0b02a5/9912237562d64a4fa01121243e3157e1/FLAGaf0ea7685 [2024-11-02 12:39:24,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/data/a1f0b02a5/9912237562d64a4fa01121243e3157e1 [2024-11-02 12:39:24,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:39:24,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:39:24,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:24,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:39:24,276 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:39:24,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:24,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729b5687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24, skipping insertion in model container [2024-11-02 12:39:24,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:24,331 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:39:24,550 WARN L251 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_a6e010ca-bcf7-49ce-be6b-10672a232af2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1266,1279] [2024-11-02 12:39:24,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:24,727 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:39:24,739 WARN L251 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_a6e010ca-bcf7-49ce-be6b-10672a232af2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c[1266,1279] [2024-11-02 12:39:24,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:39:24,921 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:39:24,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24 WrapperNode [2024-11-02 12:39:24,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:39:24,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:39:24,924 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:39:24,924 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:39:24,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:24,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:24,990 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 483 [2024-11-02 12:39:24,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:39:24,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:39:24,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:39:24,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:39:25,006 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:39:25,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:39:25,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:39:25,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:39:25,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (1/1) ... [2024-11-02 12:39:25,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:39:25,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:39:25,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:39:25,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:39:25,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:39:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:39:25,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:39:25,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:39:25,367 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:39:25,370 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:39:25,921 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-11-02 12:39:25,921 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:39:25,941 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:39:25,941 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:39:25,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:25 BoogieIcfgContainer [2024-11-02 12:39:25,942 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:39:25,944 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:39:25,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:39:25,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:39:25,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:39:24" (1/3) ... [2024-11-02 12:39:25,952 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64596b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:39:25, skipping insertion in model container [2024-11-02 12:39:25,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:39:24" (2/3) ... [2024-11-02 12:39:25,953 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64596b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:39:25, skipping insertion in model container [2024-11-02 12:39:25,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:39:25" (3/3) ... [2024-11-02 12:39:25,956 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p12.c [2024-11-02 12:39:25,978 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:39:25,979 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:39:26,068 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:39:26,077 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;@16cedcae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:39:26,077 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:39:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:26,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-02 12:39:26,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:26,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-02 12:39:26,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:39:26,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-02 12:39:26,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:39:26,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1242712331] [2024-11-02 12:39:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:26,124 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 [2024-11-02 12:39:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:39:26,128 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:39:26,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:39:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:26,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-02 12:39:26,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:39:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:26,628 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:39:26,629 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:39:26,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1242712331] [2024-11-02 12:39:26,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1242712331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:39:26,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:39:26,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:39:26,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947418705] [2024-11-02 12:39:26,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:39:26,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:39:26,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:39:26,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:39:26,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:39:26,666 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 12:39:26,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:39:26,734 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-02 12:39:26,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 12:39:26,739 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 [2024-11-02 12:39:26,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:39:26,749 INFO L225 Difference]: With dead ends: 18 [2024-11-02 12:39:26,749 INFO L226 Difference]: Without dead ends: 10 [2024-11-02 12:39:26,754 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 [2024-11-02 12:39:26,760 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:39:26,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:39:26,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-02 12:39:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-02 12:39:26,795 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) [2024-11-02 12:39:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-02 12:39:26,798 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-02 12:39:26,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:39:26,798 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-02 12:39:26,799 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) [2024-11-02 12:39:26,800 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-02 12:39:26,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-02 12:39:26,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:39:26,801 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-02 12:39:26,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:39:27,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:39:27,002 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:39:27,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:39:27,003 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-02 12:39:27,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:39:27,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715923510] [2024-11-02 12:39:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:39:27,005 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 [2024-11-02 12:39:27,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:39:27,007 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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) [2024-11-02 12:39:27,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e010ca-bcf7-49ce-be6b-10672a232af2/bin/utaipan-verify-DbMuA5NWw2/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 [2024-11-02 12:39:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:39:27,245 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-02 12:39:27,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:39:30,383 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:39:30,384 INFO L311 TraceCheckSpWp]: Computing backward predicates...