./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 32bit --witnessprinter.graph.data.programhash bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:15,564 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:15,653 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:24:15,658 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:15,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:15,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:15,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:15,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:15,702 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:15,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:15,705 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:15,705 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:15,706 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:15,706 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:15,707 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:15,707 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:15,711 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:15,711 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:15,711 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:15,712 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:15,712 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:15,712 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:15,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:15,713 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:15,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:15,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:15,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:15,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:15,715 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:15,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:15,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:15,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:15,716 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:15,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:15,716 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:15,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:15,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:15,719 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:15,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:15,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:15,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:15,720 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:15,720 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:15,721 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:15,721 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:15,721 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:15,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:15,721 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 [2024-11-02 12:24:16,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:16,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:16,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:16,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:16,066 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:16,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i Unable to find full path for "g++" [2024-11-02 12:24:18,124 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:18,329 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:18,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-02 12:24:18,340 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data/413045d2a/0b5d5cfe37cf435baae96512c56f26bc/FLAG8dc38c5e5 [2024-11-02 12:24:18,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data/413045d2a/0b5d5cfe37cf435baae96512c56f26bc [2024-11-02 12:24:18,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:18,358 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:18,360 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:18,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:18,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:18,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,369 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a71200a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18, skipping insertion in model container [2024-11-02 12:24:18,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,405 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:18,681 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2024-11-02 12:24:18,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:18,786 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:18,801 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2024-11-02 12:24:18,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:18,879 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:18,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18 WrapperNode [2024-11-02 12:24:18,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:18,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:18,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:18,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:18,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,950 INFO L138 Inliner]: procedures = 26, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2024-11-02 12:24:18,950 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:18,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:18,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:18,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:18,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:18,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:18,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:18,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:18,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:18,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (1/1) ... [2024-11-02 12:24:19,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:19,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:19,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:19,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:19,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:24:19,080 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:24:19,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:19,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:19,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:19,192 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:19,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:19,730 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:19,730 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:19,974 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:19,974 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:24:19,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:19 BoogieIcfgContainer [2024-11-02 12:24:19,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:19,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:19,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:19,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:19,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:18" (1/3) ... [2024-11-02 12:24:19,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d89956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:19, skipping insertion in model container [2024-11-02 12:24:19,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:18" (2/3) ... [2024-11-02 12:24:19,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d89956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:19, skipping insertion in model container [2024-11-02 12:24:19,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:19" (3/3) ... [2024-11-02 12:24:19,988 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-02 12:24:20,012 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:20,012 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:20,089 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:20,097 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;@a27581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:20,098 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-02 12:24:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-02 12:24:20,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:20,118 INFO L215 NwaCegarLoop]: trace histogram [21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:20,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:20,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:20,129 INFO L85 PathProgramCache]: Analyzing trace with hash -346205601, now seen corresponding path program 1 times [2024-11-02 12:24:20,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:20,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348017421] [2024-11-02 12:24:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:20,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-02 12:24:20,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955498413] [2024-11-02 12:24:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:20,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:24:20,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:20,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:24:20,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:24:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:21,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:24:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:24:21,678 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:24:21,681 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:24:21,682 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:24:21,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:24:21,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:24:21,895 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:24:22,006 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:24:22,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:24:22 BoogieIcfgContainer [2024-11-02 12:24:22,011 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:24:22,012 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:24:22,012 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:24:22,013 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:24:22,013 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:19" (3/4) ... [2024-11-02 12:24:22,017 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:24:22,018 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:24:22,020 INFO L158 Benchmark]: Toolchain (without parser) took 3661.40ms. Allocated memory is still 151.0MB. Free memory was 113.8MB in the beginning and 107.1MB in the end (delta: 6.7MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2024-11-02 12:24:22,021 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:22,022 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.03ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 114.6MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-02 12:24:22,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.97ms. Allocated memory is still 151.0MB. Free memory was 114.6MB in the beginning and 111.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:24:22,023 INFO L158 Benchmark]: Boogie Preprocessor took 41.77ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:22,025 INFO L158 Benchmark]: RCFGBuilder took 979.14ms. Allocated memory is still 151.0MB. Free memory was 109.0MB in the beginning and 73.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-02 12:24:22,025 INFO L158 Benchmark]: TraceAbstraction took 2033.60ms. Allocated memory is still 151.0MB. Free memory was 72.7MB in the beginning and 107.9MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:22,026 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 107.1MB in the end (delta: 856.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:24:22,031 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 111.1MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 520.03ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 114.6MB in the end (delta: -1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.97ms. Allocated memory is still 151.0MB. Free memory was 114.6MB in the beginning and 111.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.77ms. Allocated memory is still 151.0MB. Free memory was 111.1MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 979.14ms. Allocated memory is still 151.0MB. Free memory was 109.0MB in the beginning and 73.3MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2033.60ms. Allocated memory is still 151.0MB. Free memory was 72.7MB in the beginning and 107.9MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 151.0MB. Free memory was 107.9MB in the beginning and 107.1MB in the end (delta: 856.3kB). 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: 19]: 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 shiftRight at line 54. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 32; [L23] signed char var_1_5 = -1; [L24] signed char var_1_6 = 50; [L25] unsigned char var_1_7 = 50; [L26] unsigned char var_1_8 = 10; [L27] unsigned char var_1_9 = 128; [L28] unsigned char var_1_10 = 32; [L29] unsigned char var_1_11 = 0; [L30] signed char var_1_12 = 8; [L31] unsigned char var_1_13 = 1; [L32] signed char var_1_14 = 64; [L33] signed char var_1_15 = 16; [L34] signed char var_1_16 = 16; [L35] unsigned long int var_1_17 = 4; [L101] isInitial = 1 [L102] FCALL initially() [L103] int k_loop; [L104] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=-1, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L104] COND TRUE k_loop < 1 [L105] FCALL updateLastVariables() [L106] CALL updateVariables() [L62] var_1_5 = __VERIFIER_nondet_char() [L63] CALL assume_abort_if_not(var_1_5 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_5 >= -1) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L64] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=50, var_1_7=50, var_1_8=10, var_1_9=128] [L65] var_1_6 = __VERIFIER_nondet_char() [L66] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L67] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=50, var_1_8=10, var_1_9=128] [L68] var_1_7 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_8=10, var_1_9=128] [L70] CALL assume_abort_if_not(var_1_7 <= 255) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_7 <= 255) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_8=10, var_1_9=128] [L71] CALL assume_abort_if_not(var_1_7 != 0) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=128] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_7 != 0) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=128] [L72] var_1_9 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_9 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_9 >= 127) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L74] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, var_1_10=32, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L75] var_1_10 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L77] CALL assume_abort_if_not(var_1_10 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_10 <= 64) VAL [isInitial=1, var_1_10=-193, var_1_11=0, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=-193, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L80] CALL assume_abort_if_not(var_1_11 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_11 <= 63) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=1, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L81] var_1_13 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L83] CALL assume_abort_if_not(var_1_13 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_13 <= 1) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=64, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L84] var_1_14 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_14 >= 62) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not(var_1_14 >= 62) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L86] CALL assume_abort_if_not(var_1_14 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_14 <= 126) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=16, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L87] var_1_15 = __VERIFIER_nondet_char() [L88] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L89] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=16, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L90] var_1_16 = __VERIFIER_nondet_char() [L91] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=0, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=0, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L92] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=0, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=8, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=0, var_1_17=4, var_1_1=32, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=10, var_1_9=639] [L106] RET updateVariables() [L107] CALL step() [L39] var_1_8 = (var_1_9 - (var_1_10 + var_1_11)) [L40] COND TRUE ! var_1_13 [L41] var_1_12 = ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))) [L45] signed long int stepLocal_1 = var_1_5 - var_1_6; [L46] signed char stepLocal_0 = var_1_5; [L47] COND FALSE !(var_1_12 > stepLocal_1) [L52] var_1_1 = var_1_7 [L54] EXPR var_1_1 >> var_1_11 [L54] signed long int stepLocal_2 = var_1_1 >> var_1_11; [L55] COND TRUE stepLocal_2 != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14)))) [L56] var_1_17 = var_1_11 [L107] RET step() [L108] CALL, EXPR property() [L97] EXPR ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) [L97] EXPR var_1_1 >> var_1_11 [L97] EXPR ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) [L97-L98] return ((((var_1_12 > (var_1_5 - var_1_6)) ? (((var_1_8 / var_1_7) <= var_1_5) ? (var_1_1 == ((signed long int) var_1_12)) : 1) : (var_1_1 == ((signed long int) var_1_7))) && (var_1_8 == ((unsigned char) (var_1_9 - (var_1_10 + var_1_11))))) && ((! var_1_13) ? (var_1_12 == ((signed char) ((((((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) > (var_1_16)) ? (((var_1_14 - var_1_11) - ((((var_1_10) > (var_1_15)) ? (var_1_10) : (var_1_15))))) : (var_1_16))))) : (var_1_12 == ((signed char) 2)))) && (((var_1_1 >> var_1_11) != ((var_1_1 * var_1_8) / ((((var_1_14) < 0 ) ? -(var_1_14) : (var_1_14))))) ? (var_1_17 == ((unsigned long int) var_1_11)) : (var_1_17 == ((unsigned long int) var_1_7))) ; [L108] RET, EXPR property() [L108] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=0, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=0, var_1_17=63, var_1_1=2, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=1, var_1_9=639] [L19] reach_error() VAL [isInitial=1, var_1_10=-193, var_1_11=575, var_1_12=0, var_1_13=0, var_1_14=62, var_1_15=62, var_1_16=0, var_1_17=63, var_1_1=2, var_1_5=0, var_1_6=0, var_1_7=2, var_1_8=1, var_1_9=639] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 21, 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=40occurred 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, 1.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 2 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 12:24:22,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 32bit --witnessprinter.graph.data.programhash bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:24,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:24,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:24:24,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:24,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:24,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:24,969 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:24,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:24,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:24,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:24,973 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:24,974 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:24,974 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:24,974 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:24,975 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:24,975 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:24,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:24,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:24,977 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:24:24,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:24:24,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:24,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:24,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:24,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:24,980 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:24:24,980 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:24:24,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:24,981 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:24:24,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:24:24,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:24,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:24,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:24,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:24:24,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:24,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:24,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:24,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:24,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:24,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:24,986 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:24:24,986 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:24:24,987 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:24,987 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:24,987 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:24,988 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd18df5335c166ad57722e76e66445ba6bc9802d8c865b1ba91e68124487e889 [2024-11-02 12:24:25,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:25,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:25,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:25,594 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:25,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:25,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i Unable to find full path for "g++" [2024-11-02 12:24:27,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:28,299 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:28,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-02 12:24:28,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data/1c9850c32/8b20d74fe7d1456e9eeda2589d4b35af/FLAG4eaef80aa [2024-11-02 12:24:28,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/data/1c9850c32/8b20d74fe7d1456e9eeda2589d4b35af [2024-11-02 12:24:28,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:28,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:28,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:28,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:28,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:28,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:28" (1/1) ... [2024-11-02 12:24:28,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df42f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:28, skipping insertion in model container [2024-11-02 12:24:28,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:28" (1/1) ... [2024-11-02 12:24:28,663 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:28,927 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2024-11-02 12:24:28,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:29,026 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:29,043 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_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-44.i[915,928] [2024-11-02 12:24:29,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:29,184 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:29,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29 WrapperNode [2024-11-02 12:24:29,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:29,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:29,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:29,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:29,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,285 INFO L138 Inliner]: procedures = 27, calls = 34, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 118 [2024-11-02 12:24:29,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:29,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:29,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:29,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:29,308 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,344 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:29,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:29,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:29,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:29,353 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (1/1) ... [2024-11-02 12:24:29,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:29,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:29,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:29,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:24:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:24:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:24:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:29,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:29,639 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:29,643 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:30,190 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:30,190 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:30,216 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:30,219 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:24:30,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:30 BoogieIcfgContainer [2024-11-02 12:24:30,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:30,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:30,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:30,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:30,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:28" (1/3) ... [2024-11-02 12:24:30,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb33116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:30, skipping insertion in model container [2024-11-02 12:24:30,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:29" (2/3) ... [2024-11-02 12:24:30,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb33116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:30, skipping insertion in model container [2024-11-02 12:24:30,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:30" (3/3) ... [2024-11-02 12:24:30,231 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-44.i [2024-11-02 12:24:30,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:30,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:30,331 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:30,339 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;@533fb5da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:30,339 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:30,344 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-02 12:24:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-02 12:24:30,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:30,359 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:30,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:30,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1885700001, now seen corresponding path program 1 times [2024-11-02 12:24:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:24:30,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846254861] [2024-11-02 12:24:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:30,382 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 12:24:30,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:24:30,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 12:24:30,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 12:24:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:30,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 12:24:30,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:24:30,780 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-02 12:24:30,781 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:24:30,781 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:24:30,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846254861] [2024-11-02 12:24:30,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1846254861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:30,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:30,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-02 12:24:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684266637] [2024-11-02 12:24:30,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:30,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 12:24:30,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:24:30,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 12:24:30,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:24:30,827 INFO L87 Difference]: Start difference. First operand has 57 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 34 states have internal predecessors, (42), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-02 12:24:30,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:30,871 INFO L93 Difference]: Finished difference Result 111 states and 186 transitions. [2024-11-02 12:24:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 12:24:30,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 129 [2024-11-02 12:24:30,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:30,882 INFO L225 Difference]: With dead ends: 111 [2024-11-02 12:24:30,882 INFO L226 Difference]: Without dead ends: 53 [2024-11-02 12:24:30,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 12:24:30,889 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:30,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:24:30,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-02 12:24:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-02 12:24:30,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 30 states have internal predecessors, (35), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-02 12:24:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 77 transitions. [2024-11-02 12:24:30,940 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 77 transitions. Word has length 129 [2024-11-02 12:24:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:30,940 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 77 transitions. [2024-11-02 12:24:30,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-02 12:24:30,941 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2024-11-02 12:24:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-02 12:24:30,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:30,946 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:30,954 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 12:24:31,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 12:24:31,148 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:31,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:31,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1486432541, now seen corresponding path program 1 times [2024-11-02 12:24:31,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:24:31,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612094229] [2024-11-02 12:24:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:31,150 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 12:24:31,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:24:31,153 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 12:24:31,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2258f3c-97a5-449f-bbdf-c30e651ec9ef/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 12:24:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:32,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-02 12:24:32,870 INFO L278 TraceCheckSpWp]: Computing forward predicates...