./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:28:50,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:50,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:28:50,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:50,727 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:50,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:50,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:50,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:50,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:28:50,768 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:28:50,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:50,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:50,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:50,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:50,771 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:50,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:50,773 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:28:50,773 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:28:50,774 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:28:50,775 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:28:50,775 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:50,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:28:50,777 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:50,777 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:28:50,778 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:28:50,779 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:28:50,779 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:50,780 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:50,781 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:50,781 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:28:50,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:50,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:50,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:50,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:50,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:28:50,803 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:28:50,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:28:50,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:50,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:50,804 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:28:50,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:50,805 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:50,805 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 [2023-11-21 22:28:51,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:51,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:51,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:51,118 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:51,120 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:51,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-21 22:28:54,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:54,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:54,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-21 22:28:54,505 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data/9d950085e/fd36ca084ea74f8a8b05f6e95680928b/FLAGdb61a232c [2023-11-21 22:28:54,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data/9d950085e/fd36ca084ea74f8a8b05f6e95680928b [2023-11-21 22:28:54,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:54,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:54,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:54,525 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:54,530 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:54,531 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,532 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f97ffb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54, skipping insertion in model container [2023-11-21 22:28:54,532 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:54,706 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-21 22:28:54,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:54,740 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:54,752 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-21 22:28:54,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:54,781 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:54,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54 WrapperNode [2023-11-21 22:28:54,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:54,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:54,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:54,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:54,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,820 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 71 [2023-11-21 22:28:54,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:54,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:54,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:54,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:54,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,834 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,844 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:28:54,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:54,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:54,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:54,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:54,861 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (1/1) ... [2023-11-21 22:28:54,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:54,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:54,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:54,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:54,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:28:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:28:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:28:54,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:55,009 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:55,011 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:55,181 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:28:55,276 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:28:55,277 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:28:55,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:55 BoogieIcfgContainer [2023-11-21 22:28:55,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:28:55,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:28:55,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:28:55,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:28:55,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:28:54" (1/3) ... [2023-11-21 22:28:55,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662952b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:55, skipping insertion in model container [2023-11-21 22:28:55,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:54" (2/3) ... [2023-11-21 22:28:55,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662952b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:55, skipping insertion in model container [2023-11-21 22:28:55,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:55" (3/3) ... [2023-11-21 22:28:55,307 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-81.i [2023-11-21 22:28:55,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:28:55,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:28:55,401 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:28:55,408 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;@4ce9ccbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:28:55,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:28:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 22:28:55,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 22:28:55,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:55,423 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 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 22:28:55,423 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:28:55,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash 5883824, now seen corresponding path program 1 times [2023-11-21 22:28:55,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:55,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175821213] [2023-11-21 22:28:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:55,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:55,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:55,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:28:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:28:55,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:28:55,789 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:28:55,790 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:28:55,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:28:55,797 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:28:55,801 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:28:55,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:28:55 BoogieIcfgContainer [2023-11-21 22:28:55,836 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:28:55,837 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:28:55,837 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:28:55,837 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:28:55,838 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:55" (3/4) ... [2023-11-21 22:28:55,840 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:28:55,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:28:55,842 INFO L158 Benchmark]: Toolchain (without parser) took 1317.74ms. Allocated memory is still 180.4MB. Free memory was 150.9MB in the beginning and 128.1MB in the end (delta: 22.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2023-11-21 22:28:55,842 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory was 103.8MB in the beginning and 103.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:28:55,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 180.4MB. Free memory was 150.7MB in the beginning and 143.5MB in the end (delta: 7.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-21 22:28:55,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.90ms. Allocated memory is still 180.4MB. Free memory was 143.5MB in the beginning and 141.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:28:55,844 INFO L158 Benchmark]: Boogie Preprocessor took 37.72ms. Allocated memory is still 180.4MB. Free memory was 141.2MB in the beginning and 139.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:28:55,845 INFO L158 Benchmark]: RCFGBuilder took 419.31ms. Allocated memory is still 180.4MB. Free memory was 139.3MB in the beginning and 123.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:28:55,845 INFO L158 Benchmark]: TraceAbstraction took 554.26ms. Allocated memory is still 180.4MB. Free memory was 122.6MB in the beginning and 129.0MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:28:55,846 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 180.4MB. Free memory was 129.0MB in the beginning and 128.1MB in the end (delta: 899.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:28:55,850 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory was 103.8MB in the beginning and 103.7MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.63ms. Allocated memory is still 180.4MB. Free memory was 150.7MB in the beginning and 143.5MB in the end (delta: 7.2MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.90ms. Allocated memory is still 180.4MB. Free memory was 143.5MB in the beginning and 141.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.72ms. Allocated memory is still 180.4MB. Free memory was 141.2MB in the beginning and 139.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 419.31ms. Allocated memory is still 180.4MB. Free memory was 139.3MB in the beginning and 123.3MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 554.26ms. Allocated memory is still 180.4MB. Free memory was 122.6MB in the beginning and 129.0MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 180.4MB. Free memory was 129.0MB in the beginning and 128.1MB in the end (delta: 899.3kB). Peak memory consumption was 2.1MB. 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 32. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 0; [L23] float var_1_2 = 16.875; [L24] float var_1_3 = 49.5; [L25] signed short int var_1_4 = 25; [L26] signed short int var_1_5 = 256; [L27] signed char var_1_6 = 10; [L28] signed char var_1_7 = 64; [L61] isInitial = 1 [L62] FCALL initially() [L63] COND TRUE 1 [L64] FCALL updateLastVariables() [L65] CALL updateVariables() [L40] var_1_2 = __VERIFIER_nondet_float() [L41] 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_1=0, var_1_3=99/2, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L41] 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_1=0, var_1_3=99/2, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L42] var_1_3 = __VERIFIER_nondet_float() [L43] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L43] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=25, var_1_5=256, var_1_6=10, var_1_7=64] [L44] var_1_4 = __VERIFIER_nondet_short() [L45] CALL assume_abort_if_not(var_1_4 >= -1) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L45] RET assume_abort_if_not(var_1_4 >= -1) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=256, var_1_6=10, var_1_7=64] [L46] CALL assume_abort_if_not(var_1_4 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=256, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L46] RET assume_abort_if_not(var_1_4 <= 32766) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=256, var_1_6=10, var_1_7=64] [L47] var_1_5 = __VERIFIER_nondet_short() [L48] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L48] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=64] [L49] CALL assume_abort_if_not(var_1_5 <= 32766) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=64] [L20] COND FALSE !(!cond) [L49] RET assume_abort_if_not(var_1_5 <= 32766) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=64] [L50] var_1_7 = __VERIFIER_nondet_char() [L51] CALL assume_abort_if_not(var_1_7 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) [L51] RET assume_abort_if_not(var_1_7 >= -127) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=0] [L52] CALL assume_abort_if_not(var_1_7 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=0] [L20] COND FALSE !(!cond) [L52] RET assume_abort_if_not(var_1_7 <= 126) VAL [isInitial=1, var_1_1=0, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=10, var_1_7=0] [L65] RET updateVariables() [L66] CALL step() [L32] COND FALSE !((- var_1_2) <= var_1_3) [L35] var_1_1 = ((100 + 4) - ((((16) < (var_1_5)) ? (16) : (var_1_5)))) [L37] var_1_6 = var_1_7 [L66] RET step() [L67] CALL, EXPR property() [L57-L58] return (((- var_1_2) <= var_1_3) ? (var_1_1 == ((signed short int) (var_1_4 - var_1_5))) : (var_1_1 == ((signed short int) ((100 + 4) - ((((16) < (var_1_5)) ? (16) : (var_1_5))))))) && (var_1_6 == ((signed char) var_1_7)) ; [L67] RET, EXPR property() [L67] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=88, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=0, var_1_7=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=88, var_1_3=261, var_1_4=0, var_1_5=16, var_1_6=0, var_1_7=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 8, 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=22occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 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 22:28:55,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:28:58,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:58,557 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:28:58,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:58,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:58,608 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:58,609 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:58,610 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:58,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:28:58,616 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:28:58,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:58,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:58,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:58,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:58,621 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:58,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:58,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:28:58,623 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:28:58,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:28:58,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:58,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:28:58,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:58,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:28:58,627 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:28:58,627 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:28:58,628 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:28:58,628 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:28:58,628 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:28:58,629 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:58,629 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:58,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:58,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:28:58,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:58,632 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:58,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:58,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:58,634 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:28:58,634 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:28:58,634 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:28:58,635 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:58,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:58,635 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:28:58,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:58,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:58,637 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:28:58,637 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dc86f6ccc49efa466c40ecfaf02fc621e42a3eb275044534af963c5345cf993 [2023-11-21 22:28:59,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:59,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:59,069 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:59,071 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:59,073 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:59,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-21 22:29:02,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:29:02,480 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:29:02,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i [2023-11-21 22:29:02,489 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data/d59ec904b/256306273e134f6392c614ccae8d09d1/FLAG0a880e2b9 [2023-11-21 22:29:02,504 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/data/d59ec904b/256306273e134f6392c614ccae8d09d1 [2023-11-21 22:29:02,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:29:02,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:29:02,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:29:02,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:29:02,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:29:02,521 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8cf68f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02, skipping insertion in model container [2023-11-21 22:29:02,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:29:02,706 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-21 22:29:02,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:29:02,757 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:29:02,776 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_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-81.i[915,928] [2023-11-21 22:29:02,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:29:02,830 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:29:02,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02 WrapperNode [2023-11-21 22:29:02,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:29:02,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:29:02,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:29:02,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:29:02,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,898 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 68 [2023-11-21 22:29:02,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:29:02,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:29:02,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:29:02,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:29:02,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,915 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,925 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:29:02,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,943 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:29:02,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:29:02,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:29:02,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:29:02,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (1/1) ... [2023-11-21 22:29:02,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:29:02,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:29:02,990 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:29:03,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:29:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:29:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:29:03,033 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:29:03,033 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:29:03,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:29:03,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:29:03,127 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:29:03,129 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:29:03,345 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:29:03,438 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:29:03,439 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:29:03,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:29:03 BoogieIcfgContainer [2023-11-21 22:29:03,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:29:03,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:29:03,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:29:03,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:29:03,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:29:02" (1/3) ... [2023-11-21 22:29:03,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b653566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:29:03, skipping insertion in model container [2023-11-21 22:29:03,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:29:02" (2/3) ... [2023-11-21 22:29:03,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b653566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:29:03, skipping insertion in model container [2023-11-21 22:29:03,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:29:03" (3/3) ... [2023-11-21 22:29:03,452 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-81.i [2023-11-21 22:29:03,472 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:29:03,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:29:03,575 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:29:03,584 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;@d767421, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:29:03,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:29:03,590 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 22:29:03,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-21 22:29:03,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:29:03,601 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 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 22:29:03,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:29:03,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:29:03,606 INFO L85 PathProgramCache]: Analyzing trace with hash 5883824, now seen corresponding path program 1 times [2023-11-21 22:29:03,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:29:03,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556451352] [2023-11-21 22:29:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:29:03,625 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 22:29:03,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:29:03,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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 22:29:03,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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 22:29:03,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:29:03,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:29:03,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:29:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-21 22:29:06,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:29:06,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:29:06,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556451352] [2023-11-21 22:29:06,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556451352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:29:06,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:29:06,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:29:06,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013783177] [2023-11-21 22:29:06,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:29:06,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:29:06,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:29:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:29:06,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:29:06,562 INFO L87 Difference]: Start difference. First operand has 22 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-21 22:29:06,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:29:06,623 INFO L93 Difference]: Finished difference Result 40 states and 57 transitions. [2023-11-21 22:29:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:29:06,625 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 33 [2023-11-21 22:29:06,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:29:06,631 INFO L225 Difference]: With dead ends: 40 [2023-11-21 22:29:06,632 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:29:06,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:29:06,643 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:29:06,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:29:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:29:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:29:06,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:29:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:29:06,671 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2023-11-21 22:29:06,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:29:06,671 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:29:06,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-21 22:29:06,672 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:29:06,672 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:29:06,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:29:06,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:29:06,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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 [2023-11-21 22:29:06,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:29:06,899 INFO L899 garLoopResultBuilder]: For program point L52(lines 39 53) no Hoare annotation was computed. [2023-11-21 22:29:06,900 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-21 22:29:06,900 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-21 22:29:06,901 INFO L902 garLoopResultBuilder]: At program point L48(line 48) the Hoare annotation is: true [2023-11-21 22:29:06,902 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-21 22:29:06,902 INFO L902 garLoopResultBuilder]: At program point L48-1(line 48) the Hoare annotation is: true [2023-11-21 22:29:06,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-21 22:29:06,903 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-11-21 22:29:06,904 INFO L902 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: true [2023-11-21 22:29:06,904 INFO L902 garLoopResultBuilder]: At program point L45-1(line 45) the Hoare annotation is: true [2023-11-21 22:29:06,904 INFO L902 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: true [2023-11-21 22:29:06,904 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-21 22:29:06,905 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:29:06,905 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-11-21 22:29:06,905 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:29:06,906 INFO L902 garLoopResultBuilder]: At program point L63-2(lines 63 69) the Hoare annotation is: true [2023-11-21 22:29:06,906 INFO L902 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: true [2023-11-21 22:29:06,907 INFO L902 garLoopResultBuilder]: At program point L51-1(line 51) the Hoare annotation is: true [2023-11-21 22:29:06,911 INFO L902 garLoopResultBuilder]: At program point L43(line 43) the Hoare annotation is: true [2023-11-21 22:29:06,911 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2023-11-21 22:29:06,912 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-21 22:29:06,912 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-21 22:29:06,915 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:29:06,919 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:29:06,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:29:06 BoogieIcfgContainer [2023-11-21 22:29:06,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:29:06,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:29:06,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:29:06,928 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:29:06,929 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:29:03" (3/4) ... [2023-11-21 22:29:06,931 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:29:06,935 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-21 22:29:06,943 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-21 22:29:06,943 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-21 22:29:06,944 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:29:06,944 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:29:07,066 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:29:07,067 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:29:07,067 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:29:07,068 INFO L158 Benchmark]: Toolchain (without parser) took 4559.26ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 47.2MB in the beginning and 63.0MB in the end (delta: -15.9MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,069 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:29:07,069 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.45ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 35.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.71ms. Allocated memory is still 75.5MB. Free memory was 35.0MB in the beginning and 55.1MB in the end (delta: -20.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,070 INFO L158 Benchmark]: Boogie Preprocessor took 47.04ms. Allocated memory is still 75.5MB. Free memory was 55.1MB in the beginning and 53.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,071 INFO L158 Benchmark]: RCFGBuilder took 493.22ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 36.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,071 INFO L158 Benchmark]: TraceAbstraction took 3484.34ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 35.4MB in the beginning and 67.2MB in the end (delta: -31.8MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,072 INFO L158 Benchmark]: Witness Printer took 139.74ms. Allocated memory is still 172.0MB. Free memory was 67.2MB in the beginning and 63.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:29:07,075 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.45ms. Allocated memory is still 75.5MB. Free memory was 47.0MB in the beginning and 35.2MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.71ms. Allocated memory is still 75.5MB. Free memory was 35.0MB in the beginning and 55.1MB in the end (delta: -20.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.04ms. Allocated memory is still 75.5MB. Free memory was 55.1MB in the beginning and 53.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.22ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 36.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3484.34ms. Allocated memory was 75.5MB in the beginning and 172.0MB in the end (delta: 96.5MB). Free memory was 35.4MB in the beginning and 67.2MB in the end (delta: -31.8MB). Peak memory consumption was 64.8MB. Max. memory is 16.1GB. * Witness Printer took 139.74ms. Allocated memory is still 172.0MB. Free memory was 67.2MB in the beginning and 63.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 1, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 25 PreInvPairs, 34 NumberOfFragments, 10 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 10 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 56/56 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-21 22:29:07,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bfd1119-194d-49ba-ab5d-cd05ab686cbd/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 Writing output log to file Ultimate.log Result: TRUE