./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f01cee8b759cb4b20fb33f31713dc3cc49c7408acc479c61703421712826a1ee --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:37:18,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:37:18,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:37:18,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:37:18,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:37:18,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:37:18,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:37:18,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:37:18,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:37:18,738 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:37:18,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:37:18,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:37:18,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:37:18,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:37:18,741 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:37:18,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:37:18,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:37:18,743 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:37:18,743 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:37:18,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:37:18,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:37:18,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:37:18,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:37:18,751 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:37:18,751 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:37:18,751 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:37:18,752 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:37:18,752 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:37:18,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:37:18,753 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:37:18,753 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:37:18,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:37:18,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:37:18,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:37:18,754 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:37:18,754 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:37:18,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:37:18,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:37:18,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:37:18,755 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:37:18,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:37:18,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:37:18,756 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f01cee8b759cb4b20fb33f31713dc3cc49c7408acc479c61703421712826a1ee [2023-11-29 01:37:19,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:37:19,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:37:19,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:37:19,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:37:19,032 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:37:19,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i [2023-11-29 01:37:21,832 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:37:22,027 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:37:22,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i [2023-11-29 01:37:22,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data/a720424a0/22353482e4d64c36a980441f298a0ab7/FLAG49686680a [2023-11-29 01:37:22,054 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data/a720424a0/22353482e4d64c36a980441f298a0ab7 [2023-11-29 01:37:22,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:37:22,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:37:22,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:37:22,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:37:22,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:37:22,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@609cb8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22, skipping insertion in model container [2023-11-29 01:37:22,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,098 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:37:22,249 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_59471ce9-57c5-463b-8f60-6a982bdfca98/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i[916,929] [2023-11-29 01:37:22,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:37:22,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:37:22,317 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_59471ce9-57c5-463b-8f60-6a982bdfca98/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i[916,929] [2023-11-29 01:37:22,341 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:37:22,359 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:37:22,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22 WrapperNode [2023-11-29 01:37:22,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:37:22,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:37:22,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:37:22,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:37:22,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,408 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 119 [2023-11-29 01:37:22,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:37:22,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:37:22,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:37:22,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:37:22,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,436 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:37:22,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:37:22,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:37:22,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:37:22,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:37:22,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (1/1) ... [2023-11-29 01:37:22,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:37:22,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:22,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:37:22,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:37:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:37:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:37:22,520 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:37:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:37:22,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:37:22,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:37:22,595 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:37:22,597 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:37:22,826 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:37:22,874 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:37:22,874 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:37:22,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:37:22 BoogieIcfgContainer [2023-11-29 01:37:22,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:37:22,878 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:37:22,879 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:37:22,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:37:22,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:37:22" (1/3) ... [2023-11-29 01:37:22,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3818061a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:37:22, skipping insertion in model container [2023-11-29 01:37:22,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:22" (2/3) ... [2023-11-29 01:37:22,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3818061a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:37:22, skipping insertion in model container [2023-11-29 01:37:22,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:37:22" (3/3) ... [2023-11-29 01:37:22,885 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-57.i [2023-11-29 01:37:22,901 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:37:22,901 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:37:22,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:37:22,954 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=PETRI_NET, 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;@4e2c269c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:37:22,954 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:37:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:37:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:37:22,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:22,974 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:22,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:22,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:22,981 INFO L85 PathProgramCache]: Analyzing trace with hash -669129977, now seen corresponding path program 1 times [2023-11-29 01:37:23,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:23,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420779671] [2023-11-29 01:37:23,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:23,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:37:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:37:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:37:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:37:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 01:37:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:37:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 01:37:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 01:37:23,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:37:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 01:37:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 01:37:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 01:37:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 01:37:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:37:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:37:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:37:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 01:37:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 01:37:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:37:23,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:23,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420779671] [2023-11-29 01:37:23,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420779671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:37:23,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:37:23,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:37:23,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989922498] [2023-11-29 01:37:23,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:37:23,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:37:23,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:23,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:37:23,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:37:23,379 INFO L87 Difference]: Start difference. First operand has 47 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 01:37:23,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:23,420 INFO L93 Difference]: Finished difference Result 91 states and 160 transitions. [2023-11-29 01:37:23,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:37:23,423 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-11-29 01:37:23,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:23,431 INFO L225 Difference]: With dead ends: 91 [2023-11-29 01:37:23,431 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 01:37:23,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:37:23,438 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:23,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:37:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 01:37:23,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 01:37:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:37:23,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2023-11-29 01:37:23,488 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 109 [2023-11-29 01:37:23,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:23,488 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-11-29 01:37:23,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 01:37:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2023-11-29 01:37:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:37:23,492 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:23,493 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:23,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:37:23,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:23,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:23,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1043084857, now seen corresponding path program 1 times [2023-11-29 01:37:23,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:23,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544964843] [2023-11-29 01:37:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:23,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:37:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 01:37:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:37:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:37:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-29 01:37:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 01:37:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 01:37:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-29 01:37:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-29 01:37:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 01:37:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 01:37:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 01:37:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 01:37:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 01:37:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 01:37:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 01:37:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 01:37:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 01:37:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:37:23,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:37:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544964843] [2023-11-29 01:37:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544964843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:37:23,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:37:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:37:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170760498] [2023-11-29 01:37:23,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:37:23,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:37:23,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:37:23,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:37:23,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:37:23,866 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-29 01:37:24,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:24,020 INFO L93 Difference]: Finished difference Result 134 states and 200 transitions. [2023-11-29 01:37:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:37:24,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-11-29 01:37:24,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:24,024 INFO L225 Difference]: With dead ends: 134 [2023-11-29 01:37:24,024 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 01:37:24,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:37:24,027 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:24,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 180 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:37:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 01:37:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2023-11-29 01:37:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 39 states have internal predecessors, (45), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 01:37:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 117 transitions. [2023-11-29 01:37:24,055 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 117 transitions. Word has length 109 [2023-11-29 01:37:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:24,056 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 117 transitions. [2023-11-29 01:37:24,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-29 01:37:24,057 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 117 transitions. [2023-11-29 01:37:24,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:37:24,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:24,059 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:24,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:37:24,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:24,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:24,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1494859976, now seen corresponding path program 1 times [2023-11-29 01:37:24,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:37:24,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095440740] [2023-11-29 01:37:24,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:24,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:37:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:37:24,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:37:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:37:24,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:37:24,217 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:37:24,218 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 01:37:24,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:37:24,222 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 01:37:24,224 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:37:24,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:37:24 BoogieIcfgContainer [2023-11-29 01:37:24,294 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:37:24,294 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:37:24,294 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:37:24,295 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:37:24,295 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:37:22" (3/4) ... [2023-11-29 01:37:24,297 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 01:37:24,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:37:24,298 INFO L158 Benchmark]: Toolchain (without parser) took 2240.85ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 92.4MB in the beginning and 101.6MB in the end (delta: -9.2MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2023-11-29 01:37:24,299 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:37:24,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.32ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 80.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 01:37:24,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.81ms. Allocated memory is still 132.1MB. Free memory was 80.1MB in the beginning and 77.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:37:24,300 INFO L158 Benchmark]: Boogie Preprocessor took 44.64ms. Allocated memory is still 132.1MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:37:24,301 INFO L158 Benchmark]: RCFGBuilder took 421.27ms. Allocated memory is still 132.1MB. Free memory was 75.6MB in the beginning and 57.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:37:24,301 INFO L158 Benchmark]: TraceAbstraction took 1415.38ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 56.7MB in the beginning and 101.6MB in the end (delta: -44.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:37:24,302 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 172.0MB. Free memory is still 101.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:37:24,304 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 132.1MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.32ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 80.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.81ms. Allocated memory is still 132.1MB. Free memory was 80.1MB in the beginning and 77.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.64ms. Allocated memory is still 132.1MB. Free memory was 77.7MB in the beginning and 75.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 421.27ms. Allocated memory is still 132.1MB. Free memory was 75.6MB in the beginning and 57.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1415.38ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 56.7MB in the beginning and 101.6MB in the end (delta: -44.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 172.0MB. Free memory is still 101.6MB. 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 to_int at line 101. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed long int var_1_1 = 1; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 1; [L26] signed char var_1_9 = 64; [L27] signed char var_1_10 = 4; [L28] signed char var_1_11 = -4; [L29] signed char var_1_12 = 32; [L30] signed char var_1_13 = 32; [L31] signed char var_1_14 = -64; [L32] signed char var_1_15 = 50; [L33] signed char var_1_16 = 16; [L34] signed long int var_1_17 = 63; [L35] signed char last_1_var_1_9 = 64; [L36] signed char last_1_var_1_14 = -64; [L105] isInitial = 1 [L106] FCALL initially() [L107] COND TRUE 1 [L108] CALL updateLastVariables() [L97] last_1_var_1_9 = var_1_9 [L98] last_1_var_1_14 = var_1_14 [L108] RET updateLastVariables() [L109] CALL updateVariables() [L68] var_1_4 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_5=0, var_1_6=1, var_1_9=64] [L69] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_5=0, var_1_6=1, var_1_9=64] [L70] CALL assume_abort_if_not(var_1_4 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=1, var_1_9=64] [L70] RET assume_abort_if_not(var_1_4 <= 1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=0, var_1_6=1, var_1_9=64] [L71] var_1_5 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_6=1, var_1_9=64] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_6=1, var_1_9=64] [L73] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L73] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L74] var_1_6 = __VERIFIER_nondet_uchar() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_9=64] [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_9=64] [L76] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L76] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=4, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L77] var_1_10 = __VERIFIER_nondet_char() [L78] CALL assume_abort_if_not(var_1_10 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L78] RET assume_abort_if_not(var_1_10 >= -127) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L79] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L79] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=-4, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L80] var_1_11 = __VERIFIER_nondet_char() [L81] CALL assume_abort_if_not(var_1_11 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L81] RET assume_abort_if_not(var_1_11 >= -127) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L82] CALL assume_abort_if_not(var_1_11 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L82] RET assume_abort_if_not(var_1_11 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=32, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L83] var_1_12 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_12 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L84] RET assume_abort_if_not(var_1_12 >= -1) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L85] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L85] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=32, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L86] var_1_13 = __VERIFIER_nondet_char() [L87] CALL assume_abort_if_not(var_1_13 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L87] RET assume_abort_if_not(var_1_13 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L88] CALL assume_abort_if_not(var_1_13 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L88] RET assume_abort_if_not(var_1_13 <= 126) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=50, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L89] var_1_15 = __VERIFIER_nondet_char() [L90] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L90] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L91] CALL assume_abort_if_not(var_1_15 <= 64) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L91] RET assume_abort_if_not(var_1_15 <= 64) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=16, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L92] var_1_16 = __VERIFIER_nondet_char() [L93] CALL assume_abort_if_not(var_1_16 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L93] RET assume_abort_if_not(var_1_16 >= 0) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L94] CALL assume_abort_if_not(var_1_16 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L94] RET assume_abort_if_not(var_1_16 <= 63) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L109] RET updateVariables() [L110] CALL step() [L40] unsigned char stepLocal_0 = var_1_6; VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L41] COND TRUE ! (last_1_var_1_14 >= last_1_var_1_9) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L42] COND TRUE (var_1_4 || var_1_5) && stepLocal_0 [L43] var_1_1 = ((((last_1_var_1_9) < (last_1_var_1_14)) ? (last_1_var_1_9) : (last_1_var_1_14))) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L50] signed long int stepLocal_3 = (var_1_15 + var_1_16) - ((((64) > (var_1_13)) ? (64) : (var_1_13))); VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_3=63, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-64, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L51] COND TRUE var_1_12 < stepLocal_3 [L52] var_1_14 = ((64 - var_1_16) - var_1_13) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_3=63, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-57, var_1_15=64, var_1_16=63, var_1_17=63, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L56] var_1_17 = 128.91f [L57] unsigned char stepLocal_2 = var_1_14 == var_1_1; [L58] unsigned char stepLocal_1 = var_1_5; VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_1=1, stepLocal_2=0, stepLocal_3=63, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-57, var_1_15=64, var_1_16=63, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=64] [L59] COND FALSE !(stepLocal_1 && var_1_4) [L64] var_1_9 = (var_1_12 - var_1_13) VAL [isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, stepLocal_0=1, stepLocal_1=1, stepLocal_2=0, stepLocal_3=63, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-57, var_1_15=64, var_1_16=63, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=4] [L110] RET step() [L111] CALL, EXPR property() [L101-L102] return ((((! (last_1_var_1_14 >= last_1_var_1_9)) ? (((var_1_4 || var_1_5) && var_1_6) ? (var_1_1 == ((signed long int) ((((last_1_var_1_9) < (last_1_var_1_14)) ? (last_1_var_1_9) : (last_1_var_1_14))))) : (var_1_1 == ((signed long int) last_1_var_1_14))) : (var_1_1 == ((signed long int) last_1_var_1_14))) && ((var_1_5 && var_1_4) ? ((var_1_6 || (var_1_14 == var_1_1)) ? (var_1_9 == ((signed char) ((((var_1_10) < (var_1_11)) ? (var_1_10) : (var_1_11))))) : 1) : (var_1_9 == ((signed char) (var_1_12 - var_1_13))))) && ((var_1_12 < ((var_1_15 + var_1_16) - ((((64) > (var_1_13)) ? (64) : (var_1_13))))) ? (var_1_14 == ((signed char) ((64 - var_1_16) - var_1_13))) : (var_1_14 == ((signed char) ((((var_1_10) < (var_1_11)) ? (var_1_10) : (var_1_11))))))) && (var_1_17 == ((signed long int) 128.91f)) ; [L111] RET, EXPR property() [L111] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-57, var_1_15=64, var_1_16=63, var_1_17=65, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=4] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, last_1_var_1_14=-64, last_1_var_1_9=64, var_1_10=5, var_1_11=5, var_1_12=62, var_1_13=58, var_1_14=-57, var_1_15=64, var_1_16=63, var_1_17=65, var_1_1=-64, var_1_4=0, var_1_5=1, var_1_6=1, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 244 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 125 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1224/1224 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 [2023-11-29 01:37:24,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f01cee8b759cb4b20fb33f31713dc3cc49c7408acc479c61703421712826a1ee --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:37:26,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:37:26,337 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-29 01:37:26,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:37:26,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:37:26,371 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:37:26,372 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:37:26,372 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:37:26,373 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:37:26,373 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:37:26,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:37:26,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:37:26,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:37:26,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:37:26,376 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:37:26,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:37:26,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:37:26,378 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:37:26,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:37:26,379 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:37:26,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:37:26,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:37:26,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:37:26,381 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 01:37:26,381 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 01:37:26,381 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 01:37:26,382 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:37:26,382 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:37:26,383 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:37:26,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:37:26,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:37:26,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:37:26,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:37:26,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:37:26,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:37:26,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:37:26,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:37:26,386 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 01:37:26,386 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 01:37:26,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:37:26,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:37:26,387 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:37:26,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:37:26,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:37:26,387 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 01:37:26,388 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f01cee8b759cb4b20fb33f31713dc3cc49c7408acc479c61703421712826a1ee [2023-11-29 01:37:26,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:37:26,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:37:26,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:37:26,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:37:26,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:37:26,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i [2023-11-29 01:37:29,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:37:29,691 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:37:29,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i [2023-11-29 01:37:29,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data/ce15306eb/686847c1b6cc434b8438a29cdc825065/FLAGeffc7758c [2023-11-29 01:37:29,713 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/data/ce15306eb/686847c1b6cc434b8438a29cdc825065 [2023-11-29 01:37:29,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:37:29,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:37:29,717 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:37:29,717 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:37:29,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:37:29,722 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:37:29" (1/1) ... [2023-11-29 01:37:29,723 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a54552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:29, skipping insertion in model container [2023-11-29 01:37:29,723 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:37:29" (1/1) ... [2023-11-29 01:37:29,751 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:37:29,903 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_59471ce9-57c5-463b-8f60-6a982bdfca98/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i[916,929] [2023-11-29 01:37:29,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:37:29,963 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:37:29,975 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_59471ce9-57c5-463b-8f60-6a982bdfca98/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-57.i[916,929] [2023-11-29 01:37:29,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:37:30,015 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:37:30,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30 WrapperNode [2023-11-29 01:37:30,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:37:30,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:37:30,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:37:30,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:37:30,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,061 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 113 [2023-11-29 01:37:30,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:37:30,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:37:30,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:37:30,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:37:30,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,091 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 01:37:30,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:37:30,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:37:30,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:37:30,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:37:30,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (1/1) ... [2023-11-29 01:37:30,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:37:30,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:37:30,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:37:30,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:37:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:37:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 01:37:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:37:30,185 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:37:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:37:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:37:30,268 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:37:30,270 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:37:30,494 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:37:30,547 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:37:30,547 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:37:30,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:37:30 BoogieIcfgContainer [2023-11-29 01:37:30,548 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:37:30,550 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:37:30,550 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:37:30,553 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:37:30,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:37:29" (1/3) ... [2023-11-29 01:37:30,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b4b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:37:30, skipping insertion in model container [2023-11-29 01:37:30,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:37:30" (2/3) ... [2023-11-29 01:37:30,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@209b4b59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:37:30, skipping insertion in model container [2023-11-29 01:37:30,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:37:30" (3/3) ... [2023-11-29 01:37:30,556 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-57.i [2023-11-29 01:37:30,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:37:30,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:37:30,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:37:30,617 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=PETRI_NET, 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;@5557b44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:37:30,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:37:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:37:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:37:30,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:30,634 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:30,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:30,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:30,639 INFO L85 PathProgramCache]: Analyzing trace with hash -669129977, now seen corresponding path program 1 times [2023-11-29 01:37:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:37:30,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476501079] [2023-11-29 01:37:30,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:30,662 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 [2023-11-29 01:37:30,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:37:30,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:37:30,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:30,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:37:30,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2023-11-29 01:37:30,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:37:30,853 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:37:30,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476501079] [2023-11-29 01:37:30,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [476501079] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:37:30,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:37:30,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:37:30,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981159617] [2023-11-29 01:37:30,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:37:30,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:37:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:37:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:37:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:37:30,888 INFO L87 Difference]: Start difference. First operand has 47 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 27 states have internal predecessors, (36), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 01:37:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:30,932 INFO L93 Difference]: Finished difference Result 91 states and 160 transitions. [2023-11-29 01:37:30,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:37:30,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 109 [2023-11-29 01:37:30,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:30,940 INFO L225 Difference]: With dead ends: 91 [2023-11-29 01:37:30,940 INFO L226 Difference]: Without dead ends: 45 [2023-11-29 01:37:30,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:37:30,946 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:30,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:37:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-11-29 01:37:30,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-11-29 01:37:30,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-29 01:37:30,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2023-11-29 01:37:30,985 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 109 [2023-11-29 01:37:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:30,985 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2023-11-29 01:37:30,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 01:37:30,986 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2023-11-29 01:37:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-29 01:37:30,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:30,989 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:30,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:31,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:31,193 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:31,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:31,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1043084857, now seen corresponding path program 1 times [2023-11-29 01:37:31,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:37:31,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109856593] [2023-11-29 01:37:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:31,195 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 [2023-11-29 01:37:31,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:37:31,196 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:37:31,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:31,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:37:31,327 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:37:32,027 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-29 01:37:32,028 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:37:32,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 01:37:32,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109856593] [2023-11-29 01:37:32,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109856593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:37:32,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:37:32,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:37:32,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255639948] [2023-11-29 01:37:32,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:37:32,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:37:32,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 01:37:32,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:37:32,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:37:32,032 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-29 01:37:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:37:32,206 INFO L93 Difference]: Finished difference Result 134 states and 200 transitions. [2023-11-29 01:37:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:37:32,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 109 [2023-11-29 01:37:32,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:37:32,211 INFO L225 Difference]: With dead ends: 134 [2023-11-29 01:37:32,211 INFO L226 Difference]: Without dead ends: 90 [2023-11-29 01:37:32,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:37:32,213 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 33 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:37:32,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 180 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:37:32,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-11-29 01:37:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 78. [2023-11-29 01:37:32,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 39 states have internal predecessors, (45), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-29 01:37:32,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 117 transitions. [2023-11-29 01:37:32,245 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 117 transitions. Word has length 109 [2023-11-29 01:37:32,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:37:32,246 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 117 transitions. [2023-11-29 01:37:32,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-11-29 01:37:32,247 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 117 transitions. [2023-11-29 01:37:32,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-29 01:37:32,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:37:32,249 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:37:32,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:32,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:32,450 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:37:32,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:37:32,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1494859976, now seen corresponding path program 1 times [2023-11-29 01:37:32,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 01:37:32,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344380861] [2023-11-29 01:37:32,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:32,452 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 [2023-11-29 01:37:32,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 01:37:32,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 01:37:32,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 01:37:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:37:32,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:37:32,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:37:32,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Invalid model [2023-11-29 01:37:32,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1089458279] [2023-11-29 01:37:32,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:37:32,626 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-29 01:37:32,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-29 01:37:32,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-29 01:37:32,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59471ce9-57c5-463b-8f60-6a982bdfca98/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-29 01:37:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:37:32,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 36 conjunts are in the unsatisfiable core [2023-11-29 01:37:32,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:41:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 411 proven. 9 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-29 01:41:21,105 INFO L327 TraceCheckSpWp]: Computing backward predicates...