./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire --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 d71ae82dd186f34587e5c658cb62f85254bcdaf9e3f74492a6d8986ef7340c33 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:45,146 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:45,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:33:45,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:45,280 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:45,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:45,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:45,322 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:45,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:45,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:45,329 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:45,331 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:45,331 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:45,333 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:33:45,334 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:45,334 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:45,335 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:33:45,335 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:33:45,336 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:45,337 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:33:45,337 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:33:45,338 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:33:45,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:45,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:45,340 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:45,341 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:33:45,341 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:45,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:45,342 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:45,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:45,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:45,344 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:45,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:45,345 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:45,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:45,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:45,346 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:45,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:45,347 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:45,347 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:45,347 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:45,348 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:33:45,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:33:45,348 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:45,349 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:45,349 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:45,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:45,350 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_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d71ae82dd186f34587e5c658cb62f85254bcdaf9e3f74492a6d8986ef7340c33 [2023-11-23 20:33:45,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:45,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:45,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:45,687 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:45,688 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:45,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i [2023-11-23 20:33:49,005 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:49,264 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:49,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i [2023-11-23 20:33:49,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data/82fd5ec5a/e11d4bc86f1c4c6084c25c9f83738ce8/FLAG7c83b61f3 [2023-11-23 20:33:49,294 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data/82fd5ec5a/e11d4bc86f1c4c6084c25c9f83738ce8 [2023-11-23 20:33:49,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:49,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:49,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:49,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:49,307 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:49,308 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14804708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49, skipping insertion in model container [2023-11-23 20:33:49,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:49,565 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_1e39336d-26ae-41b0-ae45-f5f06e8b6985/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i[916,929] [2023-11-23 20:33:49,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:49,674 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:49,688 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_1e39336d-26ae-41b0-ae45-f5f06e8b6985/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i[916,929] [2023-11-23 20:33:49,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:49,729 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:49,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49 WrapperNode [2023-11-23 20:33:49,730 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:49,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:49,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:49,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:49,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,809 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-23 20:33:49,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:49,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:49,811 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:49,811 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:49,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,839 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,841 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,844 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:49,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:49,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:49,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:49,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (1/1) ... [2023-11-23 20:33:49,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:49,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:49,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:49,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:33:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:50,041 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:50,044 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:33:50,439 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:33:50,593 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:33:50,593 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:33:50,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:50 BoogieIcfgContainer [2023-11-23 20:33:50,599 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:33:50,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:33:50,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:33:50,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:33:50,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:49" (1/3) ... [2023-11-23 20:33:50,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0bcbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:50, skipping insertion in model container [2023-11-23 20:33:50,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:49" (2/3) ... [2023-11-23 20:33:50,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0bcbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:33:50, skipping insertion in model container [2023-11-23 20:33:50,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:50" (3/3) ... [2023-11-23 20:33:50,637 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-8.i [2023-11-23 20:33:50,661 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:33:50,661 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:33:50,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:33:50,743 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;@7c77cf98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:33:50,744 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:33:50,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:33:50,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 20:33:50,762 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:33:50,764 INFO L195 NwaCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:33:50,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:33:50,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:33:50,775 INFO L85 PathProgramCache]: Analyzing trace with hash 110545832, now seen corresponding path program 1 times [2023-11-23 20:33:50,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:33:50,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975306652] [2023-11-23 20:33:50,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:33:50,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:33:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:51,284 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:33:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:33:51,545 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:33:51,547 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:33:51,549 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:33:51,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:33:51,558 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:33:51,567 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:33:51,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:33:51 BoogieIcfgContainer [2023-11-23 20:33:51,641 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:33:51,642 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:33:51,642 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:33:51,643 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:33:51,643 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:33:50" (3/4) ... [2023-11-23 20:33:51,646 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:33:51,647 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:33:51,648 INFO L158 Benchmark]: Toolchain (without parser) took 2349.15ms. Allocated memory is still 176.2MB. Free memory was 128.8MB in the beginning and 115.5MB in the end (delta: 13.4MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-23 20:33:51,649 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:51,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 429.37ms. Allocated memory is still 176.2MB. Free memory was 128.8MB in the beginning and 116.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 20:33:51,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.41ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 114.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:51,651 INFO L158 Benchmark]: Boogie Preprocessor took 33.30ms. Allocated memory is still 176.2MB. Free memory was 114.2MB in the beginning and 112.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:33:51,652 INFO L158 Benchmark]: RCFGBuilder took 753.71ms. Allocated memory is still 176.2MB. Free memory was 112.6MB in the beginning and 143.6MB in the end (delta: -30.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-11-23 20:33:51,652 INFO L158 Benchmark]: TraceAbstraction took 1011.40ms. Allocated memory is still 176.2MB. Free memory was 145.8MB in the beginning and 116.5MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 20:33:51,653 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 176.2MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:33:51,657 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 132.1MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 429.37ms. Allocated memory is still 176.2MB. Free memory was 128.8MB in the beginning and 116.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.41ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 114.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.30ms. Allocated memory is still 176.2MB. Free memory was 114.2MB in the beginning and 112.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 753.71ms. Allocated memory is still 176.2MB. Free memory was 112.6MB in the beginning and 143.6MB in the end (delta: -30.9MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1011.40ms. Allocated memory is still 176.2MB. Free memory was 145.8MB in the beginning and 116.5MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 176.2MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 94, overapproximation of someBinaryArithmeticFLOAToperation at line 56. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] signed long int var_1_8 = 64; [L28] float var_1_12 = 2.4; [L29] float var_1_13 = 127.75; [L30] float var_1_14 = 0.0; [L31] float var_1_15 = 31.4; [L32] float var_1_16 = 256.75; [L33] float var_1_17 = 256.6; [L34] signed long int var_1_18 = 0; [L35] unsigned char var_1_19 = 32; [L36] unsigned char var_1_20 = 100; [L98] isInitial = 1 [L99] FCALL initially() [L100] COND TRUE 1 [L101] FCALL updateLastVariables() [L102] CALL updateVariables() [L67] var_1_4 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L68] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L70] var_1_5 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L72] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L73] var_1_6 = __VERIFIER_nondet_uchar() [L74] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L75] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L76] var_1_7 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, var_1_12=12/5, var_1_13=511/4, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L79] var_1_13 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not((var_1_13 >= -461168.6018427382800e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427382800e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_14=0, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L81] var_1_14 = __VERIFIER_nondet_float() [L82] CALL assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_14 >= 2305843.009213691390e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427382800e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_15=157/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L83] var_1_15 = __VERIFIER_nondet_float() [L84] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 2305843.009213691390e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_16=1027/4, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L85] var_1_16 = __VERIFIER_nondet_float() [L86] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 4611686.018427382800e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=100, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L87] var_1_20 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L89] CALL assume_abort_if_not(var_1_20 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_20 <= 254) VAL [isInitial=1, var_1_12=12/5, var_1_17=1283/5, var_1_18=0, var_1_19=32, var_1_1=0, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=64] [L102] RET updateVariables() [L103] CALL step() [L40] var_1_17 = var_1_14 [L41] var_1_19 = var_1_20 [L42] var_1_18 = var_1_19 [L43] unsigned char stepLocal_1 = var_1_19; [L44] signed long int stepLocal_0 = (var_1_18 * var_1_18) * (var_1_19 - var_1_19); [L45] COND FALSE !(stepLocal_0 >= 1u) [L52] var_1_8 = var_1_19 [L54] signed long int stepLocal_2 = var_1_8; [L55] COND FALSE !(var_1_19 > stepLocal_2) [L58] var_1_12 = (var_1_16 - (var_1_14 + var_1_15)) [L60] COND TRUE var_1_18 >= (8u * var_1_8) [L61] var_1_1 = (! (var_1_4 || (var_1_5 || var_1_6))) [L103] RET step() [L104] CALL, EXPR property() [L94-L95] return ((((((var_1_18 >= (8u * var_1_8)) ? (var_1_1 == ((unsigned char) (! (var_1_4 || (var_1_5 || var_1_6))))) : (var_1_1 == ((unsigned char) var_1_7))) && ((((var_1_18 * var_1_18) * (var_1_19 - var_1_19)) >= 1u) ? ((var_1_18 <= var_1_19) ? (var_1_8 == ((signed long int) var_1_19)) : (var_1_8 == ((signed long int) var_1_19))) : (var_1_8 == ((signed long int) var_1_19)))) && ((var_1_19 > var_1_8) ? (var_1_12 == ((float) (var_1_13 + ((var_1_14 - var_1_15) - var_1_16)))) : (var_1_12 == ((float) (var_1_16 - (var_1_14 + var_1_15)))))) && (var_1_17 == ((float) var_1_14))) && (var_1_18 == ((signed long int) var_1_19))) && (var_1_19 == ((unsigned char) var_1_20)) ; [L104] RET, EXPR property() [L104] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_14=261, var_1_17=261, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_14=261, var_1_17=261, var_1_18=0, var_1_19=0, var_1_1=1, var_1_20=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=1, var_1_8=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 14, 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=32occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 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 [2023-11-23 20:33:51,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire --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 d71ae82dd186f34587e5c658cb62f85254bcdaf9e3f74492a6d8986ef7340c33 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:33:54,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:33:54,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:33:54,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:33:54,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:33:54,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:33:54,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:33:54,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:33:54,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:33:54,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:33:54,613 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:33:54,613 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:33:54,614 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:33:54,616 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:33:54,616 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:33:54,616 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:33:54,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:33:54,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:33:54,619 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:33:54,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:33:54,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:33:54,621 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:33:54,621 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:33:54,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:33:54,622 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:33:54,622 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:33:54,623 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:33:54,623 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:33:54,624 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:33:54,624 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:33:54,626 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:33:54,626 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:33:54,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:33:54,627 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:33:54,627 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:54,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:33:54,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:33:54,628 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:33:54,628 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:33:54,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:33:54,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:33:54,630 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:33:54,630 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:33:54,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:33:54,631 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_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d71ae82dd186f34587e5c658cb62f85254bcdaf9e3f74492a6d8986ef7340c33 [2023-11-23 20:33:55,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:33:55,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:33:55,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:33:55,082 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:33:55,083 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:33:55,084 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i [2023-11-23 20:33:58,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:33:58,611 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:33:58,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i [2023-11-23 20:33:58,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data/1031fb369/66e5e6844a8d4974a5d03a72b0bca3a0/FLAG2e60e6a32 [2023-11-23 20:33:58,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/data/1031fb369/66e5e6844a8d4974a5d03a72b0bca3a0 [2023-11-23 20:33:58,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:33:58,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:33:58,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:58,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:33:58,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:33:58,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:58" (1/1) ... [2023-11-23 20:33:58,670 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18bfde9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:58, skipping insertion in model container [2023-11-23 20:33:58,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:33:58" (1/1) ... [2023-11-23 20:33:58,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:33:58,918 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_1e39336d-26ae-41b0-ae45-f5f06e8b6985/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i[916,929] [2023-11-23 20:33:58,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:59,025 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:33:59,042 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_1e39336d-26ae-41b0-ae45-f5f06e8b6985/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_has-floats_file-8.i[916,929] [2023-11-23 20:33:59,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:33:59,110 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:33:59,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59 WrapperNode [2023-11-23 20:33:59,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:33:59,112 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:59,112 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:33:59,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:33:59,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,193 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2023-11-23 20:33:59,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:33:59,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:33:59,196 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:33:59,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:33:59,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,249 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:33:59,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:33:59,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:33:59,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:33:59,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (1/1) ... [2023-11-23 20:33:59,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:33:59,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:33:59,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:33:59,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:33:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:33:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:33:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:33:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:33:59,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:33:59,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:33:59,480 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:33:59,494 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:34:00,714 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:34:00,790 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:34:00,797 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:34:00,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:00 BoogieIcfgContainer [2023-11-23 20:34:00,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:34:00,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:34:00,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:34:00,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:34:00,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:33:58" (1/3) ... [2023-11-23 20:34:00,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e36d6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:00, skipping insertion in model container [2023-11-23 20:34:00,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:33:59" (2/3) ... [2023-11-23 20:34:00,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e36d6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:34:00, skipping insertion in model container [2023-11-23 20:34:00,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:34:00" (3/3) ... [2023-11-23 20:34:00,811 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_has-floats_file-8.i [2023-11-23 20:34:00,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:34:00,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:34:00,897 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:34:00,905 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;@6d451e10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:34:00,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:34:00,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:34:00,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 20:34:00,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:00,923 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:00,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:00,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:00,930 INFO L85 PathProgramCache]: Analyzing trace with hash -899899240, now seen corresponding path program 1 times [2023-11-23 20:34:00,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:00,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401937497] [2023-11-23 20:34:00,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:00,946 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 [2023-11-23 20:34:00,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:00,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:34:00,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:34:01,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:01,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:34:01,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2023-11-23 20:34:01,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:01,470 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:01,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401937497] [2023-11-23 20:34:01,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401937497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:01,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:01,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:34:01,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888447602] [2023-11-23 20:34:01,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:01,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:34:01,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:34:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:34:01,514 INFO L87 Difference]: Start difference. First operand has 41 states, 24 states have (on average 1.375) internal successors, (33), 25 states have internal predecessors, (33), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:34:02,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:02,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:02,796 INFO L93 Difference]: Finished difference Result 79 states and 134 transitions. [2023-11-23 20:34:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:34:02,813 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-11-23 20:34:02,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:02,820 INFO L225 Difference]: With dead ends: 79 [2023-11-23 20:34:02,820 INFO L226 Difference]: Without dead ends: 39 [2023-11-23 20:34:02,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:34:02,828 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:02,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-23 20:34:02,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-23 20:34:02,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-23 20:34:02,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:34:02,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 56 transitions. [2023-11-23 20:34:02,876 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 56 transitions. Word has length 88 [2023-11-23 20:34:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:02,877 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 56 transitions. [2023-11-23 20:34:02,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-23 20:34:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2023-11-23 20:34:02,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 20:34:02,882 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:02,882 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:02,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:03,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:34:03,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:03,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:03,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1587462192, now seen corresponding path program 1 times [2023-11-23 20:34:03,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:03,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034731769] [2023-11-23 20:34:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:03,095 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 [2023-11-23 20:34:03,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:03,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:34:03,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:34:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:03,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 20:34:03,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:03,702 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-23 20:34:03,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:34:03,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:34:03,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034731769] [2023-11-23 20:34:03,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034731769] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:34:03,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:34:03,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:34:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59416521] [2023-11-23 20:34:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:34:03,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:34:03,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:34:03,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:34:03,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:03,719 INFO L87 Difference]: Start difference. First operand 39 states and 56 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 20:34:05,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:34:05,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:34:05,596 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2023-11-23 20:34:05,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 20:34:05,597 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 88 [2023-11-23 20:34:05,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:34:05,599 INFO L225 Difference]: With dead ends: 105 [2023-11-23 20:34:05,599 INFO L226 Difference]: Without dead ends: 67 [2023-11-23 20:34:05,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:34:05,602 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 52 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:34:05,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 179 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-23 20:34:05,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-23 20:34:05,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 39. [2023-11-23 20:34:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-23 20:34:05,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2023-11-23 20:34:05,632 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 88 [2023-11-23 20:34:05,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:34:05,637 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2023-11-23 20:34:05,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 20:34:05,637 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2023-11-23 20:34:05,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-23 20:34:05,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:34:05,641 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:34:05,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 20:34:05,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:34:05,853 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:34:05,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:34:05,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1585615150, now seen corresponding path program 1 times [2023-11-23 20:34:05,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:34:05,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711269290] [2023-11-23 20:34:05,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:34:05,858 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 [2023-11-23 20:34:05,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:34:05,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 20:34:05,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e39336d-26ae-41b0-ae45-f5f06e8b6985/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 20:34:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:34:06,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-23 20:34:06,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:34:28,201 WARN L293 SmtUtils]: Spent 6.23s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 20:34:47,004 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 49 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)