./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.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_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:30:44,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:30:44,928 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:30:44,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:30:44,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:30:44,969 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:30:44,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:30:44,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:30:44,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:30:44,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:30:44,973 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:30:44,973 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:30:44,974 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:30:44,974 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:30:44,974 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:30:44,974 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:30:44,979 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:30:44,979 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:30:44,980 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:30:44,980 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:30:44,984 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:30:44,984 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:30:44,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:30:44,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:30:44,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:30:44,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:30:44,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:30:44,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:30:44,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:30:44,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:30:44,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:30:44,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:30:45,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:30:45,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:30:45,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:30:45,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:30:45,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:30:45,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:30:45,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:45,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:30:45,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:30:45,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:30:45,009 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:30:45,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:30:45,010 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:30:45,010 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:30:45,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:30:45,010 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_7e0a97cc-bdf9-4173-8c47-7f879709e115/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b [2024-11-02 12:30:45,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:30:45,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:30:45,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:30:45,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:30:45,302 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:30:45,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i Unable to find full path for "g++" [2024-11-02 12:30:47,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:30:47,894 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:30:47,895 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-11-02 12:30:47,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data/e9cc4bc96/8f63e7a916e44824a562db5beb115c7f/FLAGe778c3204 [2024-11-02 12:30:48,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data/e9cc4bc96/8f63e7a916e44824a562db5beb115c7f [2024-11-02 12:30:48,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:30:48,115 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:30:48,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:48,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:30:48,123 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:30:48,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbce212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48, skipping insertion in model container [2024-11-02 12:30:48,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,152 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:30:48,324 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_7e0a97cc-bdf9-4173-8c47-7f879709e115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-11-02 12:30:48,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:48,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:30:48,401 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_7e0a97cc-bdf9-4173-8c47-7f879709e115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-11-02 12:30:48,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:48,450 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:30:48,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48 WrapperNode [2024-11-02 12:30:48,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:48,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:48,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:30:48,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:30:48,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,475 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,516 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-02 12:30:48,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:48,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:30:48,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:30:48,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:30:48,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,540 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,544 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:30:48,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:30:48,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:30:48,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:30:48,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (1/1) ... [2024-11-02 12:30:48,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:48,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:30:48,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:30:48,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:30:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:30:48,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:30:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:30:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:30:48,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:30:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:30:48,737 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:30:48,740 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:30:49,097 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-02 12:30:49,098 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:30:49,324 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:30:49,324 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:30:49,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:49 BoogieIcfgContainer [2024-11-02 12:30:49,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:30:49,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:30:49,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:30:49,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:30:49,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:30:48" (1/3) ... [2024-11-02 12:30:49,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197e341d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:49, skipping insertion in model container [2024-11-02 12:30:49,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:48" (2/3) ... [2024-11-02 12:30:49,336 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197e341d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:49, skipping insertion in model container [2024-11-02 12:30:49,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:49" (3/3) ... [2024-11-02 12:30:49,338 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-11-02 12:30:49,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:30:49,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:30:49,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:30:49,488 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;@690b0eda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:30:49,488 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:30:49,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 12:30:49,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-02 12:30:49,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:30:49,506 INFO L215 NwaCegarLoop]: trace histogram [18, 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 12:30:49,507 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:30:49,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:30:49,515 INFO L85 PathProgramCache]: Analyzing trace with hash -2076706769, now seen corresponding path program 1 times [2024-11-02 12:30:49,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:30:49,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574643589] [2024-11-02 12:30:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:49,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:30:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:30:49,938 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-02 12:30:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-02 12:30:50,158 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-02 12:30:50,160 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-02 12:30:50,161 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 12:30:50,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:30:50,168 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-02 12:30:50,243 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 12:30:50,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:30:50 BoogieIcfgContainer [2024-11-02 12:30:50,249 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:30:50,249 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:30:50,249 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:30:50,250 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:30:50,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:49" (3/4) ... [2024-11-02 12:30:50,253 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-02 12:30:50,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:30:50,256 INFO L158 Benchmark]: Toolchain (without parser) took 2140.29ms. Allocated memory was 130.0MB in the beginning and 192.9MB in the end (delta: 62.9MB). Free memory was 95.6MB in the beginning and 125.0MB in the end (delta: -29.4MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2024-11-02 12:30:50,257 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:30:50,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.94ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 80.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-02 12:30:50,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.53ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 77.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:30:50,261 INFO L158 Benchmark]: Boogie Preprocessor took 34.35ms. Allocated memory is still 130.0MB. Free memory was 77.7MB in the beginning and 76.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:30:50,261 INFO L158 Benchmark]: RCFGBuilder took 772.70ms. Allocated memory is still 130.0MB. Free memory was 76.0MB in the beginning and 98.4MB in the end (delta: -22.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2024-11-02 12:30:50,262 INFO L158 Benchmark]: TraceAbstraction took 921.32ms. Allocated memory was 130.0MB in the beginning and 192.9MB in the end (delta: 62.9MB). Free memory was 97.7MB in the beginning and 126.0MB in the end (delta: -28.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2024-11-02 12:30:50,262 INFO L158 Benchmark]: Witness Printer took 5.54ms. Allocated memory is still 192.9MB. Free memory is still 125.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:30:50,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 130.0MB. Free memory is still 98.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.94ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 80.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.53ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 77.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.35ms. Allocated memory is still 130.0MB. Free memory was 77.7MB in the beginning and 76.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.70ms. Allocated memory is still 130.0MB. Free memory was 76.0MB in the beginning and 98.4MB in the end (delta: -22.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * TraceAbstraction took 921.32ms. Allocated memory was 130.0MB in the beginning and 192.9MB in the end (delta: 62.9MB). Free memory was 97.7MB in the beginning and 126.0MB in the end (delta: -28.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Witness Printer took 5.54ms. Allocated memory is still 192.9MB. Free memory is still 125.0MB. 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 someBinaryDOUBLEComparisonOperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -4; [L23] double var_1_2 = 255.6; [L24] unsigned char var_1_5 = 1; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] unsigned char var_1_8 = 0; [L28] unsigned char var_1_9 = 8; [L29] double var_1_10 = 255.2; [L30] unsigned char var_1_11 = 64; [L31] unsigned char var_1_12 = 100; [L32] unsigned char var_1_13 = 32; [L33] unsigned char var_1_14 = 64; [L34] unsigned char var_1_15 = 0; [L96] isInitial = 1 [L97] FCALL initially() [L98] int k_loop; [L99] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_2=1278/5, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L99] COND TRUE k_loop < 1 [L100] FCALL updateLastVariables() [L101] CALL updateVariables() [L60] var_1_2 = __VERIFIER_nondet_double() [L61] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=0, var_1_7=0, var_1_8=0, var_1_9=8] [L62] var_1_6 = __VERIFIER_nondet_uchar() [L63] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_7=0, var_1_8=0, var_1_9=8] [L64] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=0, var_1_8=0, var_1_9=8] [L65] var_1_7 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L67] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L68] var_1_8 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_9=8] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_9=8] [L70] CALL assume_abort_if_not(var_1_8 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_8 <= 0) VAL [isInitial=1, var_1_10=1276/5, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L71] var_1_10 = __VERIFIER_nondet_double() [L72] CALL assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not((var_1_10 >= -922337.2036854776000e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 9223372.036854776000e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, var_1_11=64, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L73] var_1_11 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_11 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_11 >= 63) VAL [isInitial=1, var_1_11=67, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L75] CALL assume_abort_if_not(var_1_11 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_11 <= 127) VAL [isInitial=1, var_1_11=67, var_1_12=100, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L76] var_1_12 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_12 >= 64) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_12 >= 64) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L78] CALL assume_abort_if_not(var_1_12 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_12 <= 127) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=32, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L79] var_1_13 = __VERIFIER_nondet_uchar() [L80] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L81] CALL assume_abort_if_not(var_1_13 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_13 <= 127) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=64, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L82] var_1_14 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L84] CALL assume_abort_if_not(var_1_14 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_14 <= 127) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L85] var_1_15 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L87] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_15=0, var_1_1=-4, var_1_5=1, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=8] [L101] RET updateVariables() [L102] CALL step() [L38] COND TRUE (- var_1_2) <= var_1_10 [L39] var_1_9 = ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))) [L43] COND FALSE !(var_1_2 < 63.75) [L46] var_1_1 = (4 + var_1_9) [L48] signed long int stepLocal_0 = (var_1_9 / -256) * 32; [L49] COND TRUE var_1_9 > stepLocal_0 [L50] COND TRUE \read(var_1_6) [L51] var_1_5 = (! (var_1_7 && (! var_1_8))) [L102] RET step() [L103] CALL, EXPR property() [L92-L93] return (((var_1_2 < 63.75) ? (var_1_1 == ((signed short int) (10 - var_1_9))) : (var_1_1 == ((signed short int) (4 + var_1_9)))) && ((var_1_9 > ((var_1_9 / -256) * 32)) ? (var_1_6 ? (var_1_5 == ((unsigned char) (! (var_1_7 && (! var_1_8))))) : (var_1_5 == ((unsigned char) var_1_7))) : (var_1_5 == ((unsigned char) var_1_7)))) && (((- var_1_2) <= var_1_10) ? (var_1_9 == ((unsigned char) ((((((var_1_11 + var_1_12) - var_1_13)) < ((var_1_14 + var_1_15))) ? (((var_1_11 + var_1_12) - var_1_13)) : ((var_1_14 + var_1_15)))))) : (var_1_9 == ((unsigned char) var_1_12))) ; [L103] RET, EXPR property() [L103] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_15=0, var_1_1=8, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=4] [L19] reach_error() VAL [isInitial=1, var_1_11=67, var_1_12=-192, var_1_13=127, var_1_14=4, var_1_15=0, var_1_1=8, var_1_5=0, var_1_6=1, var_1_7=1, var_1_8=0, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 18, 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=37occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 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 12:30:50,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:30:52,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:30:53,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-02 12:30:53,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:30:53,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:30:53,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:30:53,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:30:53,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:30:53,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:30:53,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:30:53,067 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:30:53,068 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:30:53,071 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:30:53,071 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:30:53,072 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:30:53,074 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:30:53,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:30:53,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:30:53,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:30:53,079 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:30:53,079 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:30:53,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:30:53,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:30:53,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:30:53,080 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:30:53,081 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 12:30:53,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:30:53,081 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 12:30:53,081 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:30:53,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:30:53,082 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:30:53,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:30:53,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 12:30:53,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:30:53,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:30:53,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:53,086 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:30:53,086 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:30:53,086 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:30:53,087 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-02 12:30:53,088 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 12:30:53,088 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:30:53,088 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:30:53,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:30:53,090 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_7e0a97cc-bdf9-4173-8c47-7f879709e115/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb070cbac56f4132adf0ae0dc3c895d175df689a74443e8769847a39a55ce89b [2024-11-02 12:30:53,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:30:53,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:30:53,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:30:53,500 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:30:53,501 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:30:53,502 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i Unable to find full path for "g++" [2024-11-02 12:30:55,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:30:56,185 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:30:56,186 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-11-02 12:30:56,200 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data/7c5613f37/e59d4659f12a42c1acdceeeb93ae4dcc/FLAG276e3cabd [2024-11-02 12:30:56,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/data/7c5613f37/e59d4659f12a42c1acdceeeb93ae4dcc [2024-11-02 12:30:56,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:30:56,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:30:56,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:56,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:30:56,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:30:56,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:56" (1/1) ... [2024-11-02 12:30:56,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d44ec30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:56, skipping insertion in model container [2024-11-02 12:30:56,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:30:56" (1/1) ... [2024-11-02 12:30:56,451 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:30:56,854 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_7e0a97cc-bdf9-4173-8c47-7f879709e115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-11-02 12:30:56,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:56,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:30:56,988 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_7e0a97cc-bdf9-4173-8c47-7f879709e115/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-52.i[915,928] [2024-11-02 12:30:57,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:30:57,057 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:30:57,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57 WrapperNode [2024-11-02 12:30:57,059 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:30:57,060 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:57,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:30:57,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:30:57,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,152 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2024-11-02 12:30:57,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:30:57,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:30:57,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:30:57,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:30:57,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,197 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,211 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:30:57,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:30:57,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:30:57,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:30:57,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (1/1) ... [2024-11-02 12:30:57,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:30:57,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:30:57,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:30:57,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:30:57,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:30:57,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-02 12:30:57,335 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:30:57,335 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:30:57,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:30:57,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:30:57,479 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:30:57,483 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:30:57,800 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-02 12:30:57,801 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:30:57,823 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:30:57,824 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:30:57,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:57 BoogieIcfgContainer [2024-11-02 12:30:57,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:30:57,827 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:30:57,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:30:57,830 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:30:57,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:30:56" (1/3) ... [2024-11-02 12:30:57,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17df1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:57, skipping insertion in model container [2024-11-02 12:30:57,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:30:57" (2/3) ... [2024-11-02 12:30:57,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17df1d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:30:57, skipping insertion in model container [2024-11-02 12:30:57,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:30:57" (3/3) ... [2024-11-02 12:30:57,834 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-52.i [2024-11-02 12:30:57,849 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:30:57,849 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:30:57,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:30:57,932 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;@5eab5178, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:30:57,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:30:57,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 12:30:57,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-02 12:30:57,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:30:57,963 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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 12:30:57,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:30:57,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:30:57,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1649595466, now seen corresponding path program 1 times [2024-11-02 12:30:57,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:30:57,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717622678] [2024-11-02 12:30:57,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:57,989 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 12:30:57,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:30:57,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 12:30:57,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 12:30:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:30:58,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:30:58,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:30:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-02 12:30:59,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:30:59,525 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-02 12:30:59,528 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-02 12:30:59,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717622678] [2024-11-02 12:30:59,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717622678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:30:59,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1306138677] [2024-11-02 12:30:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:30:59,531 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-02 12:30:59,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/cvc4 [2024-11-02 12:30:59,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-02 12:30:59,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-02 12:31:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:00,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-02 12:31:00,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-02 12:31:00,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:31:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-02 12:31:00,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1306138677] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:31:00,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957470092] [2024-11-02 12:31:00,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:00,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:31:00,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:31:00,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:31:00,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:31:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:00,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-02 12:31:00,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:31:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 326 proven. 36 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-02 12:31:01,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:31:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-02 12:31:01,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957470092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:31:01,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-02 12:31:01,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7, 7, 10, 7] total 17 [2024-11-02 12:31:01,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356870796] [2024-11-02 12:31:01,287 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-02 12:31:01,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-02 12:31:01,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-02 12:31:01,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-02 12:31:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-11-02 12:31:01,329 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-02 12:31:03,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:31:03,009 INFO L93 Difference]: Finished difference Result 222 states and 371 transitions. [2024-11-02 12:31:03,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-02 12:31:03,016 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) Word has length 113 [2024-11-02 12:31:03,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:31:03,026 INFO L225 Difference]: With dead ends: 222 [2024-11-02 12:31:03,026 INFO L226 Difference]: Without dead ends: 160 [2024-11-02 12:31:03,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 661 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=365, Invalid=1117, Unknown=0, NotChecked=0, Total=1482 [2024-11-02 12:31:03,034 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 154 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:31:03,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 370 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-02 12:31:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-02 12:31:03,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 60. [2024-11-02 12:31:03,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 12:31:03,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 80 transitions. [2024-11-02 12:31:03,174 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 80 transitions. Word has length 113 [2024-11-02 12:31:03,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:31:03,177 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 80 transitions. [2024-11-02 12:31:03,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 17 states have internal predecessors, (57), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (33), 4 states have call predecessors, (33), 4 states have call successors, (33) [2024-11-02 12:31:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 80 transitions. [2024-11-02 12:31:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-02 12:31:03,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:31:03,182 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 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 12:31:03,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:03,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-02 12:31:03,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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)] Forceful destruction successful, exit code 0 [2024-11-02 12:31:03,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/cvc4 --incremental --print-success --lang smt,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 12:31:03,784 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:31:03,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:31:03,785 INFO L85 PathProgramCache]: Analyzing trace with hash -840248840, now seen corresponding path program 1 times [2024-11-02 12:31:03,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-02 12:31:03,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410099822] [2024-11-02 12:31:03,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:31:03,787 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 12:31:03,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/bin/utaipan-verify-DbMuA5NWw2/mathsat [2024-11-02 12:31:03,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 12:31:03,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e0a97cc-bdf9-4173-8c47-7f879709e115/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 (5)] Waiting until timeout for monitored process [2024-11-02 12:31:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:31:03,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 12:31:03,930 INFO L278 TraceCheckSpWp]: Computing forward predicates...