./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ --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 c16393ab70bcd8b9e862c4e4d30225d1c03eae452cc486af13593b1e6eb23940 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:01:19,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:01:20,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 05:01:20,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:01:20,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:01:20,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:01:20,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:01:20,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:01:20,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:01:20,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:01:20,138 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:01:20,138 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:01:20,139 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:01:20,139 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:01:20,140 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:01:20,141 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:01:20,141 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:01:20,142 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:01:20,143 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:01:20,143 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:01:20,144 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:01:20,145 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:01:20,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:01:20,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:01:20,148 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:01:20,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:01:20,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:01:20,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:01:20,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:01:20,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:01:20,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:01:20,151 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:01:20,152 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:01:20,152 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:01:20,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:01:20,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:01:20,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:20,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:01:20,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:01:20,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:01:20,156 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:01:20,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:01:20,157 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:01:20,157 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:01:20,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:01:20,158 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_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16393ab70bcd8b9e862c4e4d30225d1c03eae452cc486af13593b1e6eb23940 [2023-11-19 05:01:20,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:01:20,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:01:20,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:01:20,604 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:01:20,605 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:01:20,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i [2023-11-19 05:01:24,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:01:24,459 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:01:24,460 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i [2023-11-19 05:01:24,472 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data/ab4fe2e40/c319e09c5d4545a89ce404e6cbd52dee/FLAGbda18d8a3 [2023-11-19 05:01:24,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data/ab4fe2e40/c319e09c5d4545a89ce404e6cbd52dee [2023-11-19 05:01:24,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:01:24,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:01:24,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:24,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:01:24,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:01:24,512 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:24" (1/1) ... [2023-11-19 05:01:24,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a713b27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:24, skipping insertion in model container [2023-11-19 05:01:24,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:24" (1/1) ... [2023-11-19 05:01:24,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:01:24,892 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_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i[919,932] [2023-11-19 05:01:24,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:25,011 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:01:25,035 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_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i[919,932] [2023-11-19 05:01:25,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:25,132 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:01:25,132 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25 WrapperNode [2023-11-19 05:01:25,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:25,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:25,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:01:25,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:01:25,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,208 INFO L138 Inliner]: procedures = 26, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 141 [2023-11-19 05:01:25,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:25,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:01:25,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:01:25,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:01:25,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,226 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:01:25,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:01:25,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:01:25,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:01:25,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (1/1) ... [2023-11-19 05:01:25,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:25,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:01:25,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:01:25,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:01:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:01:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:01:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:01:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:01:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:01:25,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:01:25,487 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:01:25,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:01:25,998 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:01:26,334 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:01:26,335 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:01:26,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:26 BoogieIcfgContainer [2023-11-19 05:01:26,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:01:26,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:01:26,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:01:26,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:01:26,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:01:24" (1/3) ... [2023-11-19 05:01:26,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab81a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:26, skipping insertion in model container [2023-11-19 05:01:26,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:25" (2/3) ... [2023-11-19 05:01:26,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab81a1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:26, skipping insertion in model container [2023-11-19 05:01:26,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:26" (3/3) ... [2023-11-19 05:01:26,352 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-95.i [2023-11-19 05:01:26,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:01:26,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:01:26,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:01:26,462 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;@1017428f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:01:26,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:01:26,469 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:01:26,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 05:01:26,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:26,487 INFO L195 NwaCegarLoop]: trace histogram [15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:26,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:26,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:26,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1712149941, now seen corresponding path program 1 times [2023-11-19 05:01:26,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:01:26,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747645622] [2023-11-19 05:01:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:26,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:01:26,809 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 05:01:26,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942203400] [2023-11-19 05:01:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:01:26,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:01:26,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:01:26,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:01:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:01:27,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:01:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:01:27,379 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:01:27,382 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:01:27,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:01:27,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:01:27,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 05:01:27,595 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:01:27,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:01:27,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:01:27 BoogieIcfgContainer [2023-11-19 05:01:27,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:01:27,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:01:27,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:01:27,678 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:01:27,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:26" (3/4) ... [2023-11-19 05:01:27,681 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:01:27,682 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:01:27,684 INFO L158 Benchmark]: Toolchain (without parser) took 3187.90ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 123.2MB in the beginning and 131.0MB in the end (delta: -7.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:27,684 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:01:27,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 635.50ms. Allocated memory is still 163.6MB. Free memory was 123.2MB in the beginning and 124.3MB in the end (delta: -1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:01:27,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.34ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 121.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:01:27,687 INFO L158 Benchmark]: Boogie Preprocessor took 83.83ms. Allocated memory is still 163.6MB. Free memory was 120.6MB in the beginning and 119.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:01:27,687 INFO L158 Benchmark]: RCFGBuilder took 1047.03ms. Allocated memory is still 163.6MB. Free memory was 119.0MB in the beginning and 131.5MB in the end (delta: -12.5MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2023-11-19 05:01:27,688 INFO L158 Benchmark]: TraceAbstraction took 1333.58ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 130.8MB in the beginning and 131.0MB in the end (delta: -210.5kB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-19 05:01:27,689 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 197.1MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:01:27,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 635.50ms. Allocated memory is still 163.6MB. Free memory was 123.2MB in the beginning and 124.3MB in the end (delta: -1.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.34ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 121.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 83.83ms. Allocated memory is still 163.6MB. Free memory was 120.6MB in the beginning and 119.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1047.03ms. Allocated memory is still 163.6MB. Free memory was 119.0MB in the beginning and 131.5MB in the end (delta: -12.5MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1333.58ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 130.8MB in the beginning and 131.0MB in the end (delta: -210.5kB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 197.1MB. Free memory is still 131.0MB. 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 66, overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of bitwiseOr at line 43. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 32; [L23] double var_1_2 = 32.25; [L24] double var_1_3 = 16.5; [L25] unsigned char var_1_4 = 10; [L26] unsigned char var_1_5 = 100; [L27] unsigned char var_1_6 = 1; [L28] signed char var_1_7 = -5; [L29] unsigned char var_1_8 = 0; [L30] signed char var_1_9 = -10; [L31] signed short int var_1_10 = 64; [L32] unsigned short int var_1_11 = 0; [L33] float var_1_12 = 64.75; [L34] double var_1_13 = 5.4; [L35] float var_1_14 = 5.625; [L36] unsigned long int var_1_15 = 32; [L37] unsigned short int last_1_var_1_11 = 0; [L38] float last_1_var_1_12 = 64.75; [L39] unsigned long int last_1_var_1_15 = 32; [L118] isInitial = 1 [L119] FCALL initially() [L120] COND TRUE 1 [L121] CALL updateLastVariables() [L109] last_1_var_1_11 = var_1_11 [L110] last_1_var_1_12 = var_1_12 [L111] last_1_var_1_15 = var_1_15 [L121] RET updateLastVariables() [L122] CALL updateVariables() [L83] var_1_2 = __VERIFIER_nondet_double() [L84] 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, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=33/2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L84] 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, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=33/2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L85] var_1_3 = __VERIFIER_nondet_double() [L86] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=10, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L87] var_1_4 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L89] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=100, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L90] var_1_5 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_5 >= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(var_1_5 >= 63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L92] CALL assume_abort_if_not(var_1_5 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(var_1_5 <= 127) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=1, var_1_7=-5, var_1_8=0, var_1_9=-10] [L93] var_1_6 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=0, var_1_9=-10] [L95] CALL assume_abort_if_not(var_1_6 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=0, var_1_9=-10] [L20] COND FALSE !(!cond) [L95] RET assume_abort_if_not(var_1_6 <= 63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=0, var_1_9=-10] [L96] var_1_8 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-10] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-10] [L98] CALL assume_abort_if_not(var_1_8 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-10] [L20] COND FALSE !(!cond) [L98] RET assume_abort_if_not(var_1_8 <= 1) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-10] [L99] var_1_9 = __VERIFIER_nondet_char() [L100] CALL assume_abort_if_not(var_1_9 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(var_1_9 >= -63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L101] CALL assume_abort_if_not(var_1_9 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L20] COND FALSE !(!cond) [L101] RET assume_abort_if_not(var_1_9 <= 63) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=27/5, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L102] var_1_13 = __VERIFIER_nondet_double() [L103] CALL assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not((var_1_13 >= -922337.2036854776000e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854776000e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L104] CALL assume_abort_if_not(var_1_13 != 0.0F) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L20] COND FALSE !(!cond) [L104] RET assume_abort_if_not(var_1_13 != 0.0F) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=45/8, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L105] var_1_14 = __VERIFIER_nondet_float() [L106] CALL assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=259/4, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not((var_1_14 >= -922337.2036854765600e+13F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=64, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=259/4, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-5, var_1_8=1, var_1_9=-63] [L122] RET updateVariables() [L123] CALL step() [L43] EXPR last_1_var_1_11 ^ last_1_var_1_15 [L43] COND FALSE !((var_1_6 - last_1_var_1_15) < ((last_1_var_1_11 ^ last_1_var_1_15) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) [L48] COND FALSE !((var_1_5 <= var_1_4) && var_1_8) [L55] COND FALSE !((-8 * var_1_11) < var_1_4) [L58] var_1_7 = var_1_9 [L61] COND TRUE 128 >= last_1_var_1_15 [L62] var_1_15 = (var_1_6 + (var_1_4 + var_1_11)) [L66] COND TRUE var_1_2 != (var_1_3 / ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13)))) [L67] var_1_12 = var_1_14 [L69] COND FALSE !((10.8 + var_1_12) <= (- var_1_12)) [L72] COND FALSE !(-4 >= var_1_4) [L79] var_1_10 = var_1_4 [L123] RET step() [L124] CALL, EXPR property() [L114] EXPR (((((10.8 + var_1_12) <= (- var_1_12)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_11) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((signed short int) (var_1_7 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - last_1_var_1_15) < ((last_1_var_1_11 ^ last_1_var_1_15) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((last_1_var_1_12 == last_1_var_1_12) ? (var_1_11 == ((unsigned short int) last_1_var_1_15)) : 1) : 1) [L114-L115] return (((((((10.8 + var_1_12) <= (- var_1_12)) ? (var_1_1 == ((unsigned char) (((((1) < (var_1_4)) ? (1) : (var_1_4))) + (var_1_5 - var_1_6)))) : 1) && (((var_1_5 <= var_1_4) && var_1_8) ? (var_1_8 ? (var_1_7 == ((signed char) (var_1_6 + ((((5) < (var_1_9)) ? (5) : (var_1_9)))))) : (var_1_7 == ((signed char) ((((var_1_6) < (var_1_9)) ? (var_1_6) : (var_1_9)))))) : (((-8 * var_1_11) < var_1_4) ? (var_1_7 == ((signed char) 1)) : (var_1_7 == ((signed char) var_1_9))))) && ((-4 >= var_1_4) ? ((var_1_12 == var_1_12) ? (var_1_10 == ((signed short int) (var_1_7 + var_1_6))) : (var_1_10 == ((signed short int) var_1_5))) : (var_1_10 == ((signed short int) var_1_4)))) && (((var_1_6 - last_1_var_1_15) < ((last_1_var_1_11 ^ last_1_var_1_15) / ((((-8) > (var_1_5)) ? (-8) : (var_1_5))))) ? ((last_1_var_1_12 == last_1_var_1_12) ? (var_1_11 == ((unsigned short int) last_1_var_1_15)) : 1) : 1)) && ((var_1_2 != (var_1_3 / ((((var_1_13) < 0 ) ? -(var_1_13) : (var_1_13))))) ? (var_1_12 == ((float) var_1_14)) : 1)) && ((128 >= last_1_var_1_15) ? (var_1_15 == ((unsigned long int) (var_1_6 + (var_1_4 + var_1_11)))) : (var_1_15 == ((unsigned long int) var_1_7))) ; [L124] RET, EXPR property() [L124] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=0, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=259/4, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-63, var_1_8=1, var_1_9=-63] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_11=0, last_1_var_1_12=259/4, last_1_var_1_15=32, var_1_10=0, var_1_11=0, var_1_12=259/4, var_1_13=3, var_1_14=259/4, var_1_15=32, var_1_1=32, var_1_3=2, var_1_4=0, var_1_5=65, var_1_6=32, var_1_7=-63, var_1_8=1, var_1_9=-63] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 15, 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=33occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 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 [2023-11-19 05:01:27,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ --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 c16393ab70bcd8b9e862c4e4d30225d1c03eae452cc486af13593b1e6eb23940 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:01:30,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:01:30,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-19 05:01:30,855 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:01:30,856 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:01:30,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:01:30,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:01:30,913 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:01:30,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:01:30,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:01:30,921 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:01:30,922 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:01:30,922 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:01:30,924 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:01:30,925 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:01:30,925 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:01:30,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:01:30,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:01:30,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:01:30,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:01:30,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:01:30,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:01:30,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:01:30,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:01:30,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:01:30,932 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:01:30,932 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:01:30,933 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:01:30,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:01:30,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:01:30,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:01:30,936 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:01:30,936 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:01:30,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:30,937 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:01:30,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:01:30,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:01:30,938 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:01:30,938 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:01:30,940 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:01:30,940 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:01:30,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:01:30,941 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_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c16393ab70bcd8b9e862c4e4d30225d1c03eae452cc486af13593b1e6eb23940 [2023-11-19 05:01:31,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:01:31,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:01:31,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:01:31,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:01:31,396 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:01:31,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i [2023-11-19 05:01:34,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:01:34,902 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:01:34,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i [2023-11-19 05:01:34,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data/0e93a52d5/a4c8cc3e9173492ba1a6e1ee21f5b3c1/FLAGa3aa5dfbb [2023-11-19 05:01:34,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/data/0e93a52d5/a4c8cc3e9173492ba1a6e1ee21f5b3c1 [2023-11-19 05:01:34,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:01:34,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:01:34,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:34,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:01:34,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:01:34,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:34" (1/1) ... [2023-11-19 05:01:34,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ebece7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:34, skipping insertion in model container [2023-11-19 05:01:34,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:01:34" (1/1) ... [2023-11-19 05:01:34,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:01:35,185 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_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i[919,932] [2023-11-19 05:01:35,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:35,260 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:01:35,273 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_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-95.i[919,932] [2023-11-19 05:01:35,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:01:35,328 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:01:35,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35 WrapperNode [2023-11-19 05:01:35,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:01:35,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:35,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:01:35,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:01:35,339 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,396 INFO L138 Inliner]: procedures = 27, calls = 28, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-19 05:01:35,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:01:35,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:01:35,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:01:35,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:01:35,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:01:35,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:01:35,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:01:35,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:01:35,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (1/1) ... [2023-11-19 05:01:35,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:01:35,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:01:35,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:01:35,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:01:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:01:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:01:35,549 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:01:35,549 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:01:35,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:01:35,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:01:35,649 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:01:35,652 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:01:42,276 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:01:42,292 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:01:42,292 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:01:42,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:42 BoogieIcfgContainer [2023-11-19 05:01:42,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:01:42,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:01:42,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:01:42,314 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:01:42,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:01:34" (1/3) ... [2023-11-19 05:01:42,315 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abc129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:42, skipping insertion in model container [2023-11-19 05:01:42,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:01:35" (2/3) ... [2023-11-19 05:01:42,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9abc129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:01:42, skipping insertion in model container [2023-11-19 05:01:42,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:01:42" (3/3) ... [2023-11-19 05:01:42,319 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-95.i [2023-11-19 05:01:42,344 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:01:42,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:01:42,425 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:01:42,435 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;@5a2ce2a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:01:42,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:01:42,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:01:42,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 05:01:42,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:42,464 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:42,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:42,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:42,479 INFO L85 PathProgramCache]: Analyzing trace with hash -992709274, now seen corresponding path program 1 times [2023-11-19 05:01:42,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:01:42,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706959438] [2023-11-19 05:01:42,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:42,502 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 [2023-11-19 05:01:42,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:01:42,506 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:01:42,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:43,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 05:01:43,971 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:01:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-11-19 05:01:44,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:01:44,029 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:01:44,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706959438] [2023-11-19 05:01:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706959438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:44,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:44,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:01:44,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426118704] [2023-11-19 05:01:44,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:44,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:01:44,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:01:44,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:01:44,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:01:44,087 INFO L87 Difference]: Start difference. First operand has 53 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 36 states have internal predecessors, (50), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:01:44,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:01:44,115 INFO L93 Difference]: Finished difference Result 98 states and 167 transitions. [2023-11-19 05:01:44,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:01:44,117 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 100 [2023-11-19 05:01:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:01:44,126 INFO L225 Difference]: With dead ends: 98 [2023-11-19 05:01:44,126 INFO L226 Difference]: Without dead ends: 48 [2023-11-19 05:01:44,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:01:44,134 INFO L413 NwaCegarLoop]: 70 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, 70 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 [2023-11-19 05:01:44,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:01:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-19 05:01:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-19 05:01:44,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 31 states have internal predecessors, (40), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 05:01:44,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2023-11-19 05:01:44,179 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 70 transitions. Word has length 100 [2023-11-19 05:01:44,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:01:44,180 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 70 transitions. [2023-11-19 05:01:44,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:01:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-11-19 05:01:44,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 05:01:44,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:01:44,187 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:01:44,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 05:01:44,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:44,394 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:01:44,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:01:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1537232236, now seen corresponding path program 1 times [2023-11-19 05:01:44,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:01:44,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102322986] [2023-11-19 05:01:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:01:44,397 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 [2023-11-19 05:01:44,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:01:44,399 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:01:44,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:01:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:01:45,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:01:45,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:01:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-11-19 05:01:49,297 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:01:49,298 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 05:01:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102322986] [2023-11-19 05:01:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1102322986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:01:49,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:01:49,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:01:49,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061100743] [2023-11-19 05:01:49,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:01:49,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:01:49,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 05:01:49,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:01:49,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:01:49,304 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-19 05:01:51,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:01:53,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:01:55,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:01:59,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:02:01,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:02:03,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:02:06,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 05:02:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:02:06,228 INFO L93 Difference]: Finished difference Result 138 states and 204 transitions. [2023-11-19 05:02:06,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:02:06,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 100 [2023-11-19 05:02:06,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:02:06,310 INFO L225 Difference]: With dead ends: 138 [2023-11-19 05:02:06,311 INFO L226 Difference]: Without dead ends: 93 [2023-11-19 05:02:06,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:02:06,314 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2023-11-19 05:02:06,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 119 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 16.9s Time] [2023-11-19 05:02:06,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-19 05:02:06,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-11-19 05:02:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 58 states have (on average 1.293103448275862) internal successors, (75), 58 states have internal predecessors, (75), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-19 05:02:06,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 135 transitions. [2023-11-19 05:02:06,350 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 135 transitions. Word has length 100 [2023-11-19 05:02:06,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:02:06,351 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 135 transitions. [2023-11-19 05:02:06,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-19 05:02:06,352 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 135 transitions. [2023-11-19 05:02:06,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 05:02:06,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:02:06,357 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:02:06,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-19 05:02:06,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:02:06,579 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:02:06,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:02:06,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1594490538, now seen corresponding path program 1 times [2023-11-19 05:02:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:02:06,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139361199] [2023-11-19 05:02:06,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:02:06,583 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 [2023-11-19 05:02:06,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:02:06,585 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:02:06,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d7e3ef-d4c4-4c4f-8029-c2d0a90cbed3/bin/utaipan-verify-t7M7D8N6sZ/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 (4)] Waiting until timeout for monitored process [2023-11-19 05:02:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:02:07,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 05:02:07,804 INFO L285 TraceCheckSpWp]: Computing forward predicates...