./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx --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 b88bda8e1a4209131fc4a459b5a961cf1cc3c7f6d9206d86670129fed231a369 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:01,254 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:01,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:18:01,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:01,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:01,431 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:01,431 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:01,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:01,437 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:18:01,442 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:18:01,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:18:01,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:18:01,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:01,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:01,447 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:01,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:01,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:18:01,449 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:18:01,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:01,449 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:18:01,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:01,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:18:01,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:18:01,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:18:01,452 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:18:01,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:01,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:01,453 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:01,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:01,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:18:01,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:18:01,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:01,456 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:01,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:18:01,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:18:01,457 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:01,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:18:01,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:18:01,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:18:01,458 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:18:01,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:18:01,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:18:01,459 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_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b88bda8e1a4209131fc4a459b5a961cf1cc3c7f6d9206d86670129fed231a369 [2023-11-21 22:18:01,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:01,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:01,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:01,840 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:01,841 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:01,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i [2023-11-21 22:18:05,142 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:05,382 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:05,383 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i [2023-11-21 22:18:05,393 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data/c20d397dc/122f26a02e0d480e8b248673b58657f6/FLAGcf0694cbd [2023-11-21 22:18:05,411 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data/c20d397dc/122f26a02e0d480e8b248673b58657f6 [2023-11-21 22:18:05,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:05,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:05,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:05,419 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:05,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:05,437 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bab8b3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05, skipping insertion in model container [2023-11-21 22:18:05,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,469 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:05,626 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_1f57d3cc-481b-46fd-8831-00e33f42dcce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i[915,928] [2023-11-21 22:18:05,673 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:05,686 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:05,696 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_1f57d3cc-481b-46fd-8831-00e33f42dcce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i[915,928] [2023-11-21 22:18:05,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:05,741 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:05,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05 WrapperNode [2023-11-21 22:18:05,741 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:05,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:05,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:05,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:05,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,793 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 116 [2023-11-21 22:18:05,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:05,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:05,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:05,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:05,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,808 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,819 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:18:05,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,829 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:05,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:05,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:05,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:05,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (1/1) ... [2023-11-21 22:18:05,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:05,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:05,892 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:05,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:05,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:18:05,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:18:05,935 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:18:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:18:05,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:05,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:06,016 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:06,019 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:06,313 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:18:06,563 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:18:06,564 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:18:06,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:06 BoogieIcfgContainer [2023-11-21 22:18:06,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:18:06,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:18:06,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:18:06,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:18:06,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:05" (1/3) ... [2023-11-21 22:18:06,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ed1807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:06, skipping insertion in model container [2023-11-21 22:18:06,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:05" (2/3) ... [2023-11-21 22:18:06,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ed1807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:06, skipping insertion in model container [2023-11-21 22:18:06,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:06" (3/3) ... [2023-11-21 22:18:06,579 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-65.i [2023-11-21 22:18:06,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:18:06,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:18:06,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:18:06,657 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;@6ce01323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:18:06,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:18:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-21 22:18:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:18:06,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:18:06,673 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:06,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:18:06,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:06,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1708812054, now seen corresponding path program 1 times [2023-11-21 22:18:06,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:06,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586895630] [2023-11-21 22:18:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:06,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:07,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:07,033 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:07,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:07,298 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:18:07,300 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:18:07,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:18:07,307 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:18:07,313 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:18:07,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:18:07 BoogieIcfgContainer [2023-11-21 22:18:07,406 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:18:07,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:18:07,408 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:18:07,409 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:18:07,409 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:06" (3/4) ... [2023-11-21 22:18:07,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:18:07,413 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:18:07,414 INFO L158 Benchmark]: Toolchain (without parser) took 1997.98ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 135.7MB in the end (delta: -7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:07,415 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 172.0MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:07,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.55ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 115.7MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:18:07,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.41ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 113.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:18:07,419 INFO L158 Benchmark]: Boogie Preprocessor took 46.07ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 111.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:18:07,425 INFO L158 Benchmark]: RCFGBuilder took 724.81ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 85.8MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 22:18:07,427 INFO L158 Benchmark]: TraceAbstraction took 834.32ms. Allocated memory is still 172.0MB. Free memory was 85.0MB in the beginning and 135.7MB in the end (delta: -50.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-11-21 22:18:07,427 INFO L158 Benchmark]: Witness Printer took 6.80ms. Allocated memory is still 172.0MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:07,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 172.0MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.55ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 115.7MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.41ms. Allocated memory is still 172.0MB. Free memory was 115.7MB in the beginning and 113.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.07ms. Allocated memory is still 172.0MB. Free memory was 113.6MB in the beginning and 111.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 724.81ms. Allocated memory is still 172.0MB. Free memory was 111.6MB in the beginning and 85.8MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 834.32ms. Allocated memory is still 172.0MB. Free memory was 85.0MB in the beginning and 135.7MB in the end (delta: -50.6MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 6.80ms. Allocated memory is still 172.0MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of someUnaryFLOAToperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 1000000000.1; [L23] float var_1_2 = 256.75; [L24] unsigned char var_1_3 = 1; [L25] float var_1_4 = 8.2; [L26] signed long int var_1_5 = -32; [L27] signed long int var_1_6 = 4; [L28] signed char var_1_7 = 5; [L29] signed char var_1_8 = 64; [L30] signed char var_1_9 = 16; [L31] signed char var_1_10 = 64; [L32] signed char var_1_11 = -64; [L33] double var_1_12 = 15.9; [L34] double var_1_13 = 1.5; [L35] double var_1_14 = 10000000000.375; [L36] unsigned char var_1_15 = 1; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] FCALL updateLastVariables() [L103] CALL updateVariables() [L63] var_1_2 = __VERIFIER_nondet_float() [L64] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=1, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L64] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=1, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L65] var_1_3 = __VERIFIER_nondet_uchar() [L66] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L66] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L67] CALL assume_abort_if_not(var_1_3 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not(var_1_3 <= 1) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=41/5, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L68] var_1_4 = __VERIFIER_nondet_float() [L69] CALL assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not((var_1_4 >= -922337.2036854765600e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L70] var_1_6 = __VERIFIER_nondet_long() [L71] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L72] CALL assume_abort_if_not(var_1_6 <= 1073741823) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L20] COND FALSE !(!cond) [L72] RET assume_abort_if_not(var_1_6 <= 1073741823) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=64, var_1_9=16] [L73] var_1_8 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_8 >= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=16] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_8 >= 63) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=16] [L75] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=16] [L20] COND FALSE !(!cond) [L75] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=16] [L76] var_1_9 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L78] CALL assume_abort_if_not(var_1_9 <= 63) VAL [\old(cond)=1, isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L78] RET assume_abort_if_not(var_1_9 <= 63) VAL [isInitial=1, var_1_10=64, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L79] var_1_10 = __VERIFIER_nondet_char() [L80] CALL assume_abort_if_not(var_1_10 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 >= -127) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L81] CALL assume_abort_if_not(var_1_10 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not(var_1_10 <= 126) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=159/10, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L82] var_1_12 = __VERIFIER_nondet_double() [L83] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854776000e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=3/2, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L84] var_1_13 = __VERIFIER_nondet_double() [L85] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427387900e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L85] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 4611686.018427387900e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=80000000003/8, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L86] var_1_14 = __VERIFIER_nondet_double() [L87] CALL assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427387900e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not((var_1_14 >= 0.0F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 4611686.018427387900e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=1, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L88] var_1_15 = __VERIFIER_nondet_uchar() [L89] CALL assume_abort_if_not(var_1_15 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=0, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(var_1_15 >= 0) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=0, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L90] CALL assume_abort_if_not(var_1_15 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=0, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L20] COND FALSE !(!cond) [L90] RET assume_abort_if_not(var_1_15 <= 1) VAL [isInitial=1, var_1_10=-1, var_1_11=-64, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=0, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=5, var_1_8=63, var_1_9=28] [L103] RET updateVariables() [L104] CALL step() [L40] COND FALSE !(0.625f > var_1_2) [L45] var_1_1 = ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))) [L47] COND FALSE !(\read(var_1_3)) [L50] signed long int stepLocal_0 = var_1_6; [L51] COND TRUE ((64 - 25) - (var_1_8 - var_1_9)) >= stepLocal_0 [L52] var_1_7 = (((((var_1_9 - 32)) > (var_1_10)) ? ((var_1_9 - 32)) : (var_1_10))) [L54] COND TRUE (var_1_12 - (var_1_13 + var_1_14)) <= var_1_1 [L55] COND FALSE !(var_1_3 && var_1_15) [L58] var_1_11 = var_1_9 [L104] RET step() [L105] CALL, EXPR property() [L95-L96] return ((((0.625f > var_1_2) ? (var_1_3 ? (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4))))) : 1) : (var_1_1 == ((float) ((((var_1_4) < 0 ) ? -(var_1_4) : (var_1_4)))))) && (var_1_3 ? (var_1_5 == ((signed long int) ((10 + var_1_6) - 2))) : 1)) && ((((64 - 25) - (var_1_8 - var_1_9)) >= var_1_6) ? (var_1_7 == ((signed char) (((((var_1_9 - 32)) > (var_1_10)) ? ((var_1_9 - 32)) : (var_1_10))))) : 1)) && (((var_1_12 - (var_1_13 + var_1_14)) <= var_1_1) ? ((var_1_3 && var_1_15) ? (var_1_11 == ((signed char) var_1_10)) : (var_1_11 == ((signed char) var_1_9))) : 1) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-1, var_1_11=28, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=0, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=-1, var_1_8=63, var_1_9=28] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=-1, var_1_11=28, var_1_12=10000000006, var_1_13=10000000005, var_1_14=10000000007, var_1_15=0, var_1_1=10000000001/10, var_1_3=0, var_1_4=10000000001/10, var_1_5=-32, var_1_6=4, var_1_7=-1, var_1_8=63, var_1_9=28] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 22:18:07,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx --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 b88bda8e1a4209131fc4a459b5a961cf1cc3c7f6d9206d86670129fed231a369 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:10,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:10,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:18:10,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:10,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:10,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:10,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:10,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:10,549 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:18:10,550 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:18:10,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:18:10,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:18:10,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:10,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:10,553 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:10,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:10,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:18:10,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:18:10,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:18:10,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:10,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:18:10,558 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:18:10,558 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:18:10,559 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:18:10,559 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:18:10,560 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:18:10,560 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:18:10,561 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:10,561 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:10,562 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:10,562 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:10,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:18:10,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:18:10,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:10,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:10,564 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:18:10,564 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:18:10,565 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:18:10,565 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:18:10,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:18:10,565 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:18:10,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:18:10,566 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:18:10,566 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:18:10,567 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:18:10,567 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_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b88bda8e1a4209131fc4a459b5a961cf1cc3c7f6d9206d86670129fed231a369 [2023-11-21 22:18:10,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:10,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:10,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:10,936 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:10,936 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:10,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i [2023-11-21 22:18:14,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:14,587 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:14,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i [2023-11-21 22:18:14,600 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data/265dd382e/c284dfb8883d431384a4c384efb0dbde/FLAGa4ecf5a0d [2023-11-21 22:18:14,620 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/data/265dd382e/c284dfb8883d431384a4c384efb0dbde [2023-11-21 22:18:14,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:14,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:14,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:14,627 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:14,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:14,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:14" (1/1) ... [2023-11-21 22:18:14,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4edf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:14, skipping insertion in model container [2023-11-21 22:18:14,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:14" (1/1) ... [2023-11-21 22:18:14,695 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:14,913 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_1f57d3cc-481b-46fd-8831-00e33f42dcce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i[915,928] [2023-11-21 22:18:15,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:15,055 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:15,078 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_1f57d3cc-481b-46fd-8831-00e33f42dcce/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-65.i[915,928] [2023-11-21 22:18:15,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:15,174 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:15,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15 WrapperNode [2023-11-21 22:18:15,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:15,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:15,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:15,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:15,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,265 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 112 [2023-11-21 22:18:15,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:15,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:15,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:15,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:15,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,321 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,333 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:18:15,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,375 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:15,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:15,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:15,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:15,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (1/1) ... [2023-11-21 22:18:15,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:15,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:15,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:15,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:15,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:18:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:18:15,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:18:15,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:18:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:15,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:15,676 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:15,687 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:20,597 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:18:20,795 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:18:20,795 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:18:20,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:20 BoogieIcfgContainer [2023-11-21 22:18:20,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:18:20,801 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:18:20,801 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:18:20,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:18:20,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:14" (1/3) ... [2023-11-21 22:18:20,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508324bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:20, skipping insertion in model container [2023-11-21 22:18:20,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:15" (2/3) ... [2023-11-21 22:18:20,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508324bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:20, skipping insertion in model container [2023-11-21 22:18:20,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:20" (3/3) ... [2023-11-21 22:18:20,809 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-65.i [2023-11-21 22:18:20,832 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:18:20,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:18:20,900 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:18:20,909 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;@e677e6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:18:20,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:18:20,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-21 22:18:20,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-21 22:18:20,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:18:20,931 INFO L195 NwaCegarLoop]: trace histogram [17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:18:20,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:18:20,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:20,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1708812054, now seen corresponding path program 1 times [2023-11-21 22:18:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:18:20,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298810708] [2023-11-21 22:18:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:20,961 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 [2023-11-21 22:18:20,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:18:20,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:18:20,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f57d3cc-481b-46fd-8831-00e33f42dcce/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:18:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:18:21,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-21 22:18:21,474 INFO L285 TraceCheckSpWp]: Computing forward predicates...