./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX --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 8562120c4d964df300b4e0f96d7d546a5e259ab3adfcf7bea482bd3e6f1bd491 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:06,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:06,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:47:06,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:06,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:06,524 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:06,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:06,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:06,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:06,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:06,528 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:06,528 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:06,529 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:06,529 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:47:06,530 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:06,530 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:06,531 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:47:06,534 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:47:06,534 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:06,535 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:47:06,535 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:47:06,536 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:47:06,537 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:06,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:06,538 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:06,539 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:47:06,539 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:06,540 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:06,540 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:06,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:06,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:06,542 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:06,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:06,543 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:06,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:06,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:06,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:06,545 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:06,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:06,545 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:06,546 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:47:06,549 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:47:06,550 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:06,550 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:06,551 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:06,551 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8562120c4d964df300b4e0f96d7d546a5e259ab3adfcf7bea482bd3e6f1bd491 [2023-11-12 00:47:06,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:06,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:06,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:06,863 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:06,864 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:06,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i [2023-11-12 00:47:10,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:10,352 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:10,353 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i [2023-11-12 00:47:10,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data/999b4ffc0/391bea0eced54e1f953a02f816511a7e/FLAG26df70c50 [2023-11-12 00:47:10,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data/999b4ffc0/391bea0eced54e1f953a02f816511a7e [2023-11-12 00:47:10,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:10,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:10,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:10,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:10,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:10,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33baa4a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10, skipping insertion in model container [2023-11-12 00:47:10,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:10,594 WARN L240 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i[913,926] [2023-11-12 00:47:10,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:10,678 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:10,693 WARN L240 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i[913,926] [2023-11-12 00:47:10,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:10,744 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:10,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10 WrapperNode [2023-11-12 00:47:10,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:10,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:10,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:10,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:10,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,787 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,833 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 147 [2023-11-12 00:47:10,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:10,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:10,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:10,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:10,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:10,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:10,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:10,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:10,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (1/1) ... [2023-11-12 00:47:10,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:10,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:10,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:47:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:11,158 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:11,161 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:11,552 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:11,792 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:11,792 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:11,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:11 BoogieIcfgContainer [2023-11-12 00:47:11,796 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:11,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:11,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:11,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:11,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:10" (1/3) ... [2023-11-12 00:47:11,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672eebb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:11, skipping insertion in model container [2023-11-12 00:47:11,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:10" (2/3) ... [2023-11-12 00:47:11,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@672eebb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:11, skipping insertion in model container [2023-11-12 00:47:11,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:11" (3/3) ... [2023-11-12 00:47:11,810 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-20.i [2023-11-12 00:47:11,833 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:11,834 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:11,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:11,949 INFO L357 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, mHoare=true, 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;@7842c35a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:11,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:11,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:47:11,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-12 00:47:11,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:11,988 INFO L195 NwaCegarLoop]: trace histogram [19, 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] [2023-11-12 00:47:11,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:11,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:11,998 INFO L85 PathProgramCache]: Analyzing trace with hash -901802080, now seen corresponding path program 1 times [2023-11-12 00:47:12,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:47:12,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408237494] [2023-11-12 00:47:12,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:12,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:47:12,279 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:47:12,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109878419] [2023-11-12 00:47:12,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:12,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:47:12,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:12,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:47:12,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:47:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:13,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:47:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:47:13,299 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:47:13,303 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:47:13,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:47:13,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:47:13,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:47:13,518 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:47:13,522 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:47:13,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:47:13 BoogieIcfgContainer [2023-11-12 00:47:13,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:47:13,624 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:47:13,624 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:47:13,624 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:47:13,625 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:11" (3/4) ... [2023-11-12 00:47:13,628 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:47:13,629 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:47:13,630 INFO L158 Benchmark]: Toolchain (without parser) took 3240.68ms. Allocated memory is still 155.2MB. Free memory was 122.3MB in the beginning and 90.8MB in the end (delta: 31.6MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-12 00:47:13,631 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:13,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.47ms. Allocated memory is still 155.2MB. Free memory was 122.3MB in the beginning and 108.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:47:13,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.88ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 105.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:13,633 INFO L158 Benchmark]: Boogie Preprocessor took 63.12ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:13,633 INFO L158 Benchmark]: RCFGBuilder took 897.93ms. Allocated memory is still 155.2MB. Free memory was 103.0MB in the beginning and 58.2MB in the end (delta: 44.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-12 00:47:13,634 INFO L158 Benchmark]: TraceAbstraction took 1822.08ms. Allocated memory is still 155.2MB. Free memory was 57.5MB in the beginning and 90.8MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:13,634 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 155.2MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:47:13,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.47ms. Allocated memory is still 155.2MB. Free memory was 122.3MB in the beginning and 108.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.88ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 105.1MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.12ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 103.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 897.93ms. Allocated memory is still 155.2MB. Free memory was 103.0MB in the beginning and 58.2MB in the end (delta: 44.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1822.08ms. Allocated memory is still 155.2MB. Free memory was 57.5MB in the beginning and 90.8MB in the end (delta: -33.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 155.2MB. Free memory is still 90.8MB. 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 someBinaryFLOATComparisonOperation at line 67, overapproximation of shiftLeft at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 116, overapproximation of someBinaryArithmeticFLOAToperation at line 59. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 5; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_3 = 128; [L25] unsigned char var_1_4 = 2; [L26] unsigned char var_1_5 = 2; [L27] unsigned char var_1_6 = 32; [L28] signed long int var_1_7 = 128; [L29] unsigned short int var_1_8 = 100; [L30] float var_1_9 = 255.75; [L31] signed char var_1_10 = 64; [L32] signed char var_1_11 = 32; [L33] signed char var_1_12 = 4; [L34] float var_1_13 = 0.0; [L35] float var_1_14 = 7.25; [L36] float var_1_15 = 8.125; [L37] float var_1_16 = 24.5; [L38] signed short int var_1_17 = -256; [L39] double var_1_18 = 31.5; [L120] isInitial = 1 [L121] FCALL initially() [L122] COND TRUE 1 [L123] FCALL updateLastVariables() [L124] CALL updateVariables() [L82] var_1_2 = __VERIFIER_nondet_uchar() [L83] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L84] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=128, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L85] var_1_3 = __VERIFIER_nondet_uchar() [L86] CALL assume_abort_if_not(var_1_3 >= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_3 >= 127) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L87] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=2, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L88] var_1_4 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L90] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=2, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L91] var_1_5 = __VERIFIER_nondet_uchar() [L92] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L93] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L93] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=128, var_1_8=100, var_1_9=1023/4] [L94] var_1_7 = __VERIFIER_nondet_long() [L95] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L96] CALL assume_abort_if_not(var_1_7 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(var_1_7 <= 1073741823) VAL [isInitial=1, var_1_10=64, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L97] var_1_10 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_10 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_10 >= 63) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L99] CALL assume_abort_if_not(var_1_10 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(var_1_10 <= 127) VAL [isInitial=1, var_1_10=127, var_1_11=32, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L100] var_1_11 = __VERIFIER_nondet_char() [L101] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L102] CALL assume_abort_if_not(var_1_11 <= 64) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(var_1_11 <= 64) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=4, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L103] var_1_12 = __VERIFIER_nondet_char() [L104] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L105] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=0, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L106] var_1_13 = __VERIFIER_nondet_float() [L107] CALL assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L107] RET assume_abort_if_not((var_1_13 >= 4611686.018427382800e+12F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=29/4, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L108] var_1_14 = __VERIFIER_nondet_float() [L109] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=3, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=3, var_1_15=65/8, var_1_16=49/2, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L110] var_1_16 = __VERIFIER_nondet_float() [L111] CALL assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=3, var_1_15=65/8, var_1_16=4, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not((var_1_16 >= -461168.6018427382800e+13F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=3, var_1_15=65/8, var_1_16=4, var_1_17=-256, var_1_18=63/2, var_1_1=5, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=32, var_1_7=63, var_1_8=100, var_1_9=1023/4] [L124] RET updateVariables() [L125] CALL step() [L43] COND FALSE !(\read(var_1_2)) [L46] var_1_1 = (var_1_4 + var_1_5) [L48] COND FALSE !((64 + (var_1_5 / var_1_3)) != (var_1_1 - (var_1_4 + var_1_7))) [L51] var_1_6 = 128 [L53] COND TRUE (var_1_6 + var_1_1) >= (var_1_3 - var_1_5) [L54] var_1_8 = ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))) [L58] COND TRUE ((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5 [L59] var_1_9 = (64.8f - (var_1_13 - var_1_14)) [L63] var_1_15 = (var_1_14 + var_1_16) [L64] COND FALSE !(\read(var_1_2)) [L67] COND FALSE !(var_1_14 == (((((99.8f) < (var_1_16)) ? (99.8f) : (var_1_16))) / ((((255.6f) > (var_1_13)) ? (255.6f) : (var_1_13))))) [L70] var_1_17 = (var_1_5 - var_1_3) [L73] COND TRUE (var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8) [L74] EXPR var_1_11 << var_1_12 [L74] COND TRUE (var_1_11 << var_1_12) > var_1_5 [L75] var_1_18 = var_1_13 [L125] RET step() [L126] CALL, EXPR property() [L116] EXPR ((((((var_1_2 ? (var_1_1 == ((unsigned char) (var_1_3 - var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 + var_1_5)))) && (((64 + (var_1_5 / var_1_3)) != (var_1_1 - (var_1_4 + var_1_7))) ? (var_1_6 == ((unsigned char) var_1_4)) : (var_1_6 == ((unsigned char) 128)))) && (((var_1_6 + var_1_1) >= (var_1_3 - var_1_5)) ? (var_1_8 == ((unsigned short int) ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))))) : (var_1_8 == ((unsigned short int) var_1_1)))) && ((((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5) ? (var_1_9 == ((float) (64.8f - (var_1_13 - var_1_14)))) : (var_1_9 == ((float) var_1_13)))) && (var_1_15 == ((float) (var_1_14 + var_1_16)))) && (var_1_2 ? (var_1_17 == ((signed short int) (var_1_3 + var_1_12))) : ((var_1_14 == (((((99.8f) < (var_1_16)) ? (99.8f) : (var_1_16))) / ((((255.6f) > (var_1_13)) ? (255.6f) : (var_1_13))))) ? (var_1_17 == ((signed short int) var_1_4)) : (var_1_17 == ((signed short int) (var_1_5 - var_1_3)))))) && (((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16))) [L116] EXPR ((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16)) [L116] EXPR var_1_11 << var_1_12 [L116] EXPR ((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16)) [L116] EXPR ((((((var_1_2 ? (var_1_1 == ((unsigned char) (var_1_3 - var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 + var_1_5)))) && (((64 + (var_1_5 / var_1_3)) != (var_1_1 - (var_1_4 + var_1_7))) ? (var_1_6 == ((unsigned char) var_1_4)) : (var_1_6 == ((unsigned char) 128)))) && (((var_1_6 + var_1_1) >= (var_1_3 - var_1_5)) ? (var_1_8 == ((unsigned short int) ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))))) : (var_1_8 == ((unsigned short int) var_1_1)))) && ((((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5) ? (var_1_9 == ((float) (64.8f - (var_1_13 - var_1_14)))) : (var_1_9 == ((float) var_1_13)))) && (var_1_15 == ((float) (var_1_14 + var_1_16)))) && (var_1_2 ? (var_1_17 == ((signed short int) (var_1_3 + var_1_12))) : ((var_1_14 == (((((99.8f) < (var_1_16)) ? (99.8f) : (var_1_16))) / ((((255.6f) > (var_1_13)) ? (255.6f) : (var_1_13))))) ? (var_1_17 == ((signed short int) var_1_4)) : (var_1_17 == ((signed short int) (var_1_5 - var_1_3)))))) && (((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16))) [L116-L117] return ((((((var_1_2 ? (var_1_1 == ((unsigned char) (var_1_3 - var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 + var_1_5)))) && (((64 + (var_1_5 / var_1_3)) != (var_1_1 - (var_1_4 + var_1_7))) ? (var_1_6 == ((unsigned char) var_1_4)) : (var_1_6 == ((unsigned char) 128)))) && (((var_1_6 + var_1_1) >= (var_1_3 - var_1_5)) ? (var_1_8 == ((unsigned short int) ((((var_1_1) > (var_1_3)) ? (var_1_1) : (var_1_3))))) : (var_1_8 == ((unsigned short int) var_1_1)))) && ((((var_1_10 - var_1_11) - (16 + var_1_12)) != var_1_5) ? (var_1_9 == ((float) (64.8f - (var_1_13 - var_1_14)))) : (var_1_9 == ((float) var_1_13)))) && (var_1_15 == ((float) (var_1_14 + var_1_16)))) && (var_1_2 ? (var_1_17 == ((signed short int) (var_1_3 + var_1_12))) : ((var_1_14 == (((((99.8f) < (var_1_16)) ? (99.8f) : (var_1_16))) / ((((255.6f) > (var_1_13)) ? (255.6f) : (var_1_13))))) ? (var_1_17 == ((signed short int) var_1_4)) : (var_1_17 == ((signed short int) (var_1_5 - var_1_3)))))) && (((var_1_2 || (var_1_16 > var_1_13)) && (var_1_3 < var_1_8)) ? (((var_1_11 << var_1_12) > var_1_5) ? (var_1_18 == ((double) var_1_13)) : 1) : (var_1_18 == ((double) var_1_16))) ; [L126] RET, EXPR property() [L126] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=3, var_1_16=4, var_1_17=-126, var_1_18=2, var_1_1=254, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=128, var_1_7=63, var_1_8=254, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=64, var_1_12=1, var_1_13=2, var_1_14=3, var_1_16=4, var_1_17=-126, var_1_18=2, var_1_1=254, var_1_2=0, var_1_3=253, var_1_4=127, var_1_5=127, var_1_6=128, var_1_7=63, var_1_8=254, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 19, 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=39occurred 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, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 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 [2023-11-12 00:47:13,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX --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 8562120c4d964df300b4e0f96d7d546a5e259ab3adfcf7bea482bd3e6f1bd491 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:47:16,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:47:16,479 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:47:16,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:47:16,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:47:16,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:47:16,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:47:16,518 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:47:16,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:47:16,520 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:47:16,521 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:47:16,521 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:47:16,522 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:47:16,522 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:47:16,523 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:47:16,524 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:47:16,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:47:16,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:47:16,526 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:47:16,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:47:16,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:47:16,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:47:16,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:47:16,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:47:16,530 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:47:16,531 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:47:16,532 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:47:16,532 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:47:16,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:47:16,533 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:47:16,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:47:16,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:47:16,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:47:16,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:16,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:47:16,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:47:16,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:47:16,538 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:47:16,538 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:47:16,539 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:47:16,539 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:47:16,540 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:47:16,540 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8562120c4d964df300b4e0f96d7d546a5e259ab3adfcf7bea482bd3e6f1bd491 [2023-11-12 00:47:16,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:47:16,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:47:16,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:47:16,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:47:16,978 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:47:16,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i [2023-11-12 00:47:20,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:47:20,614 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:47:20,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i [2023-11-12 00:47:20,626 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data/79d133697/9a8e772f9ec04bb682b1d1b36cfda605/FLAG1a5d04a07 [2023-11-12 00:47:20,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/data/79d133697/9a8e772f9ec04bb682b1d1b36cfda605 [2023-11-12 00:47:20,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:47:20,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:47:20,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:20,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:47:20,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:47:20,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:20" (1/1) ... [2023-11-12 00:47:20,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28662ad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:20, skipping insertion in model container [2023-11-12 00:47:20,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:47:20" (1/1) ... [2023-11-12 00:47:20,715 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:47:20,886 WARN L240 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i[913,926] [2023-11-12 00:47:20,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:20,961 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:47:20,993 WARN L240 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_307a89ee-7db4-46bb-a0bd-b22298e578e2/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-20.i[913,926] [2023-11-12 00:47:21,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:47:21,073 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:47:21,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21 WrapperNode [2023-11-12 00:47:21,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:47:21,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:21,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:47:21,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:47:21,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,181 INFO L138 Inliner]: procedures = 27, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2023-11-12 00:47:21,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:47:21,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:47:21,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:47:21,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:47:21,194 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,222 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:47:21,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:47:21,228 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:47:21,228 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:47:21,229 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (1/1) ... [2023-11-12 00:47:21,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:47:21,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:47:21,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:47:21,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:47:21,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:47:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:47:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:47:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:47:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:47:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:47:21,402 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:47:21,404 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:47:25,483 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:47:25,491 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:47:25,492 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:47:25,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:25 BoogieIcfgContainer [2023-11-12 00:47:25,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:47:25,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:47:25,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:47:25,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:47:25,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:47:20" (1/3) ... [2023-11-12 00:47:25,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2a1fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:25, skipping insertion in model container [2023-11-12 00:47:25,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:47:21" (2/3) ... [2023-11-12 00:47:25,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2a1fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:47:25, skipping insertion in model container [2023-11-12 00:47:25,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:47:25" (3/3) ... [2023-11-12 00:47:25,506 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-20.i [2023-11-12 00:47:25,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:47:25,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:47:25,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:47:25,578 INFO L357 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, mHoare=true, 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;@676f427d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:47:25,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:47:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:47:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-12 00:47:25,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:25,599 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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] [2023-11-12 00:47:25,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:25,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:25,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1442975280, now seen corresponding path program 1 times [2023-11-12 00:47:25,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:25,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1538625097] [2023-11-12 00:47:25,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:25,622 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 [2023-11-12 00:47:25,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:25,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:47:25,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:26,141 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:47:26,157 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:47:26,206 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2023-11-12 00:47:26,206 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:47:26,207 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:47:26,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1538625097] [2023-11-12 00:47:26,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1538625097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:47:26,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:47:26,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:47:26,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20743832] [2023-11-12 00:47:26,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:47:26,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:47:26,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:47:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:47:26,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:47:26,263 INFO L87 Difference]: Start difference. First operand has 58 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:47:26,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:47:26,295 INFO L93 Difference]: Finished difference Result 109 states and 187 transitions. [2023-11-12 00:47:26,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:47:26,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 122 [2023-11-12 00:47:26,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:47:26,306 INFO L225 Difference]: With dead ends: 109 [2023-11-12 00:47:26,306 INFO L226 Difference]: Without dead ends: 54 [2023-11-12 00:47:26,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:47:26,314 INFO L413 NwaCegarLoop]: 80 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, 80 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 [2023-11-12 00:47:26,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:47:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-12 00:47:26,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-12 00:47:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 33 states have internal predecessors, (42), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-12 00:47:26,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 80 transitions. [2023-11-12 00:47:26,365 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 80 transitions. Word has length 122 [2023-11-12 00:47:26,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:47:26,365 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 80 transitions. [2023-11-12 00:47:26,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-12 00:47:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 80 transitions. [2023-11-12 00:47:26,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-12 00:47:26,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:47:26,371 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 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] [2023-11-12 00:47:26,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:26,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:26,585 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:47:26,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:47:26,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1165217590, now seen corresponding path program 1 times [2023-11-12 00:47:26,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:47:26,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2127129511] [2023-11-12 00:47:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:47:26,587 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 [2023-11-12 00:47:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:47:26,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:47:26,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_307a89ee-7db4-46bb-a0bd-b22298e578e2/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:47:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:47:27,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-12 00:47:27,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:48:06,095 WARN L293 SmtUtils]: Spent 9.74s on a formula simplification that was a NOOP. DAG size: 87 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)