./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB --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 4d6f9f8754fd5e74a79795681184ddd0bb5014968bab7230012cd8a3c9285d31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:32:43,422 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:32:43,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 03:32:43,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:32:43,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:32:43,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:32:43,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:32:43,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:32:43,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:32:43,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:32:43,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:32:43,548 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:32:43,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:32:43,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:32:43,549 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:32:43,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:32:43,549 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:32:43,549 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:32:43,549 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:32:43,550 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:32:43,551 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:32:43,551 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:32:43,551 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:32:43,551 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:43,551 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:43,551 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:43,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:43,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:32:43,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:43,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:43,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:43,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:43,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:32:43,553 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:32:43,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:32:43,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:32:43,554 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 4d6f9f8754fd5e74a79795681184ddd0bb5014968bab7230012cd8a3c9285d31 [2024-11-28 03:32:43,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:32:43,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:32:43,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:32:43,885 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:32:43,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:32:43,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i [2024-11-28 03:32:46,923 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/d6f52fccd/caa0e25410824f6683fae5b677b99aa5/FLAGe68ef036e [2024-11-28 03:32:47,211 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:32:47,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i [2024-11-28 03:32:47,223 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/d6f52fccd/caa0e25410824f6683fae5b677b99aa5/FLAGe68ef036e [2024-11-28 03:32:47,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/d6f52fccd/caa0e25410824f6683fae5b677b99aa5 [2024-11-28 03:32:47,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:32:47,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:32:47,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:47,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:32:47,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:32:47,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599cd0c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47, skipping insertion in model container [2024-11-28 03:32:47,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:32:47,405 WARN L250 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_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i[915,928] [2024-11-28 03:32:47,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:47,455 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:32:47,466 WARN L250 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_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i[915,928] [2024-11-28 03:32:47,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:47,543 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:32:47,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47 WrapperNode [2024-11-28 03:32:47,545 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:47,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:47,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:32:47,547 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:32:47,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,570 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,610 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-28 03:32:47,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:47,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:32:47,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:32:47,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:32:47,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,634 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,652 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:32:47,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,662 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:32:47,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:32:47,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:32:47,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:32:47,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (1/1) ... [2024-11-28 03:32:47,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:47,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:47,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:47,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:32:47,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:32:47,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:32:47,770 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:32:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:32:47,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:32:47,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:32:47,874 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:32:47,876 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:32:48,204 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:32:48,205 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:32:48,215 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:32:48,215 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:32:48,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:48 BoogieIcfgContainer [2024-11-28 03:32:48,216 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:32:48,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:32:48,219 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:32:48,224 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:32:48,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:32:47" (1/3) ... [2024-11-28 03:32:48,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da9c69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:48, skipping insertion in model container [2024-11-28 03:32:48,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:47" (2/3) ... [2024-11-28 03:32:48,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7da9c69f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:32:48, skipping insertion in model container [2024-11-28 03:32:48,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:48" (3/3) ... [2024-11-28 03:32:48,227 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-55.i [2024-11-28 03:32:48,243 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:32:48,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-55.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:32:48,306 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:32:48,317 INFO L333 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, 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;@1fbf743f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:32:48,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:32:48,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 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) [2024-11-28 03:32:48,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:32:48,333 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:48,333 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:48,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:48,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:48,341 INFO L85 PathProgramCache]: Analyzing trace with hash 670286164, now seen corresponding path program 1 times [2024-11-28 03:32:48,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:48,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607698182] [2024-11-28 03:32:48,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:48,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:48,718 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:32:48,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:32:48,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607698182] [2024-11-28 03:32:48,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607698182] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:32:48,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110597386] [2024-11-28 03:32:48,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:48,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:48,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:48,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:48,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:32:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:32:48,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:32:48,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:32:49,033 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-28 03:32:49,033 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:32:49,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110597386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:32:49,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:32:49,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:32:49,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131190996] [2024-11-28 03:32:49,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:32:49,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:32:49,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:32:49,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:32:49,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:32:49,068 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 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) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:32:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:32:49,102 INFO L93 Difference]: Finished difference Result 101 states and 166 transitions. [2024-11-28 03:32:49,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:32:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2024-11-28 03:32:49,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:32:49,111 INFO L225 Difference]: With dead ends: 101 [2024-11-28 03:32:49,111 INFO L226 Difference]: Without dead ends: 48 [2024-11-28 03:32:49,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:32:49,118 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:32:49,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:32:49,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-28 03:32:49,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-28 03:32:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2024-11-28 03:32:49,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-28 03:32:49,163 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 107 [2024-11-28 03:32:49,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:32:49,163 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-28 03:32:49,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:32:49,164 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-28 03:32:49,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:32:49,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:32:49,168 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:32:49,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:32:49,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:32:49,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:32:49,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:32:49,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1571827542, now seen corresponding path program 1 times [2024-11-28 03:32:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:32:49,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198532452] [2024-11-28 03:32:49,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:49,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:32:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:32:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [369169802] [2024-11-28 03:32:49,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:32:49,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:49,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:49,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:32:49,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:32:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:49,763 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 03:32:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 03:32:49,993 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 03:32:49,994 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 03:32:49,996 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:32:50,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:32:50,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:32:50,206 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 03:32:50,296 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:32:50,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:32:50 BoogieIcfgContainer [2024-11-28 03:32:50,307 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:32:50,308 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:32:50,308 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:32:50,308 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:32:50,309 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:32:48" (3/4) ... [2024-11-28 03:32:50,316 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 03:32:50,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:32:50,320 INFO L158 Benchmark]: Toolchain (without parser) took 3078.53ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 49.4MB in the end (delta: 44.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:50,320 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:50,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.53ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 81.0MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:50,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.28ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:32:50,321 INFO L158 Benchmark]: Boogie Preprocessor took 71.25ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:50,324 INFO L158 Benchmark]: RCFGBuilder took 529.82ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 61.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:32:50,325 INFO L158 Benchmark]: TraceAbstraction took 2088.59ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 50.0MB in the end (delta: 10.9MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-11-28 03:32:50,325 INFO L158 Benchmark]: Witness Printer took 10.92ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:32:50,327 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.53ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 81.0MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.28ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.25ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 529.82ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 61.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2088.59ms. Allocated memory is still 117.4MB. Free memory was 61.0MB in the beginning and 50.0MB in the end (delta: 10.9MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Witness Printer took 10.92ms. Allocated memory is still 117.4MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 21.0kB). 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 91, overapproximation of someBinaryFLOATComparisonOperation at line 98, overapproximation of someBinaryFLOATComparisonOperation at line 93, overapproximation of someBinaryFLOATComparisonOperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 10; [L23] unsigned char var_1_2 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned short int var_1_6 = 16; [L26] signed char var_1_7 = 25; [L27] unsigned short int var_1_8 = 5; [L28] unsigned short int var_1_9 = 1; [L29] signed char var_1_12 = 1; [L30] float var_1_13 = 127.75; [L31] float var_1_14 = 0.0; [L32] float var_1_15 = 255.7; [L33] float var_1_16 = 7.6; [L34] unsigned long int var_1_17 = 64; [L35] signed long int var_1_18 = 0; VAL [isInitial=0, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L102] isInitial = 1 [L103] FCALL initially() [L104] int k_loop; [L105] k_loop = 0 VAL [isInitial=1, k_loop=0, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L105] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L106] FCALL updateLastVariables() [L107] CALL updateVariables() [L68] var_1_2 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L69] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L70] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L71] var_1_5 = __VERIFIER_nondet_uchar() [L72] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L72] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L73] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=16, var_1_7=25, var_1_8=5, var_1_9=1] [L74] var_1_6 = __VERIFIER_nondet_ushort() [L75] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L75] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_7=25, var_1_8=5, var_1_9=1] [L76] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=5, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=5, var_1_9=1] [L76] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=5, var_1_9=1] [L77] var_1_8 = __VERIFIER_nondet_ushort() [L78] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_9=1] [L78] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_9=1] [L79] CALL assume_abort_if_not(var_1_8 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_9=1] [L79] RET assume_abort_if_not(var_1_8 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_9=1] [L80] CALL assume_abort_if_not(var_1_8 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=1] [L80] RET assume_abort_if_not(var_1_8 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=1] [L81] var_1_9 = __VERIFIER_nondet_ushort() [L82] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1] [L82] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1] [L83] CALL assume_abort_if_not(var_1_9 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1] [L83] RET assume_abort_if_not(var_1_9 <= 65535) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1] [L84] CALL assume_abort_if_not(var_1_9 != 0) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L84] RET assume_abort_if_not(var_1_9 != 0) VAL [isInitial=1, var_1_12=1, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L85] var_1_12 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_12 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L86] RET assume_abort_if_not(var_1_12 >= -127) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L87] CALL assume_abort_if_not(var_1_12 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L87] RET assume_abort_if_not(var_1_12 <= 126) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_14=0, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L88] var_1_14 = __VERIFIER_nondet_float() [L89] CALL assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L89] RET assume_abort_if_not((var_1_14 >= 4611686.018427382800e+12F && var_1_14 <= -1.0e-20F) || (var_1_14 <= 9223372.036854765600e+12F && var_1_14 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_15=2557/10, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L90] var_1_15 = __VERIFIER_nondet_float() [L91] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L91] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 4611686.018427382800e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_16=38/5, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L92] var_1_16 = __VERIFIER_nondet_float() [L93] CALL assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L93] RET assume_abort_if_not((var_1_16 >= 0.0F && var_1_16 <= -1.0e-20F) || (var_1_16 <= 9223372.036854765600e+12F && var_1_16 >= 1.0e-20F )) VAL [isInitial=1, var_1_12=-127, var_1_13=511/4, var_1_17=64, var_1_18=0, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L107] RET updateVariables() [L108] CALL step() [L39] var_1_13 = ((var_1_14 - var_1_15) - var_1_16) [L40] var_1_17 = var_1_6 [L41] var_1_18 = var_1_9 [L42] unsigned short int stepLocal_3 = var_1_9; [L43] unsigned long int stepLocal_2 = var_1_17; VAL [isInitial=1, stepLocal_2=4, stepLocal_3=4, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=25, var_1_8=1, var_1_9=4] [L44] COND FALSE !(stepLocal_2 <= ((var_1_17 / var_1_8) / var_1_9)) [L51] var_1_7 = var_1_12 VAL [isInitial=1, stepLocal_3=4, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=-127, var_1_8=1, var_1_9=4] [L53] signed char stepLocal_1 = var_1_7; [L54] unsigned char stepLocal_0 = var_1_7 >= var_1_7; VAL [isInitial=1, stepLocal_0=1, stepLocal_1=-127, stepLocal_3=4, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=10, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=-127, var_1_8=1, var_1_9=4] [L55] COND FALSE !(\read(var_1_2)) [L64] var_1_1 = var_1_6 VAL [isInitial=1, stepLocal_0=1, stepLocal_1=-127, stepLocal_3=4, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=4, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=-127, var_1_8=1, var_1_9=4] [L108] RET step() [L109] CALL, EXPR property() [L98-L99] return ((((var_1_2 ? (((var_1_7 >= var_1_7) && var_1_5) ? ((var_1_7 >= var_1_7) ? (var_1_1 == ((unsigned short int) 5)) : (var_1_1 == ((unsigned short int) var_1_6))) : 1) : (var_1_1 == ((unsigned short int) var_1_6))) && ((var_1_17 <= ((var_1_17 / var_1_8) / var_1_9)) ? ((var_1_9 == (var_1_18 * (~ var_1_18))) ? (var_1_7 == ((signed char) var_1_12)) : (var_1_7 == ((signed char) var_1_12))) : (var_1_7 == ((signed char) var_1_12)))) && (var_1_13 == ((float) ((var_1_14 - var_1_15) - var_1_16)))) && (var_1_17 == ((unsigned long int) var_1_6))) && (var_1_18 == ((signed long int) var_1_9)) ; VAL [\result=0, isInitial=1, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=4, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=-127, var_1_8=1, var_1_9=4] [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=4, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=-127, var_1_8=1, var_1_9=4] [L19] reach_error() VAL [isInitial=1, var_1_12=-127, var_1_17=4, var_1_18=4, var_1_1=4, var_1_2=0, var_1_5=1, var_1_6=4, var_1_7=-127, var_1_8=1, var_1_9=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 73 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, InterpolantAutomatonStates: 2, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 212 ConstructedInterpolants, 0 QuantifiedInterpolants, 212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1056/1088 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 03:32:50,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB --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 4d6f9f8754fd5e74a79795681184ddd0bb5014968bab7230012cd8a3c9285d31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:32:53,625 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:32:53,809 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 03:32:53,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:32:53,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:32:53,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:32:53,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:32:53,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:32:53,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:32:53,872 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:32:53,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:32:53,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:32:53,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:32:53,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:32:53,873 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:32:53,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:32:53,873 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:32:53,873 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:32:53,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:32:53,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:32:53,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:32:53,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:32:53,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:32:53,877 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 03:32:53,878 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 03:32:53,878 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 03:32:53,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:32:53,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:32:53,878 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:32:53,878 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:32:53,879 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:32:53,880 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:53,880 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:53,880 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:53,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:53,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:32:53,881 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:32:53,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:32:53,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:32:53,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:53,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:32:53,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:32:53,882 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:32:53,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:32:53,883 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 03:32:53,883 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 03:32:53,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:32:53,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:32:53,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:32:53,884 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:32:53,884 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 4d6f9f8754fd5e74a79795681184ddd0bb5014968bab7230012cd8a3c9285d31 [2024-11-28 03:32:54,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:32:54,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:32:54,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:32:54,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:32:54,342 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:32:54,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i [2024-11-28 03:32:57,825 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/4f24bdd89/fd94c4821a724ac9adae57ab7fce7a4f/FLAGd97c30c7e [2024-11-28 03:32:58,162 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:32:58,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i [2024-11-28 03:32:58,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/4f24bdd89/fd94c4821a724ac9adae57ab7fce7a4f/FLAGd97c30c7e [2024-11-28 03:32:58,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/data/4f24bdd89/fd94c4821a724ac9adae57ab7fce7a4f [2024-11-28 03:32:58,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:32:58,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:32:58,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:58,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:32:58,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:32:58,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a4736db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58, skipping insertion in model container [2024-11-28 03:32:58,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:32:58,471 WARN L250 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_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i[915,928] [2024-11-28 03:32:58,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:58,577 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:32:58,595 WARN L250 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_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-55.i[915,928] [2024-11-28 03:32:58,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:32:58,667 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:32:58,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58 WrapperNode [2024-11-28 03:32:58,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:32:58,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:58,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:32:58,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:32:58,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,751 INFO L138 Inliner]: procedures = 27, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 114 [2024-11-28 03:32:58,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:32:58,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:32:58,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:32:58,756 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:32:58,769 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,775 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,799 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:32:58,802 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,818 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,837 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,842 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:32:58,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:32:58,851 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:32:58,851 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:32:58,852 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (1/1) ... [2024-11-28 03:32:58,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:32:58,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:32:58,908 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:32:58,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:32:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:32:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 03:32:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:32:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:32:58,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:32:58,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:32:59,082 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:32:59,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:33:00,656 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-28 03:33:00,656 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:33:00,670 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:33:00,670 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:33:00,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:00 BoogieIcfgContainer [2024-11-28 03:33:00,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:33:00,674 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:33:00,675 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:33:00,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:33:00,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:32:58" (1/3) ... [2024-11-28 03:33:00,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6d9948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:00, skipping insertion in model container [2024-11-28 03:33:00,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:32:58" (2/3) ... [2024-11-28 03:33:00,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a6d9948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:33:00, skipping insertion in model container [2024-11-28 03:33:00,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:00" (3/3) ... [2024-11-28 03:33:00,686 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-55.i [2024-11-28 03:33:00,708 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:33:00,710 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-55.i that has 2 procedures, 52 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:33:00,789 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:33:00,807 INFO L333 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, 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;@64fe8ac5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:33:00,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:33:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 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) [2024-11-28 03:33:00,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:33:00,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:00,847 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:00,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:00,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:00,856 INFO L85 PathProgramCache]: Analyzing trace with hash 670286164, now seen corresponding path program 1 times [2024-11-28 03:33:00,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:00,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649523984] [2024-11-28 03:33:00,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:00,869 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 [2024-11-28 03:33:00,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:33:00,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:33:00,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:33:01,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:01,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:33:01,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:01,339 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-28 03:33:01,340 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:33:01,340 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:33:01,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649523984] [2024-11-28 03:33:01,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649523984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:33:01,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:33:01,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:33:01,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358806078] [2024-11-28 03:33:01,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:33:01,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:33:01,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:33:01,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:33:01,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:33:01,376 INFO L87 Difference]: Start difference. First operand has 52 states, 32 states have (on average 1.3125) internal successors, (42), 33 states have internal predecessors, (42), 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) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:33:01,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:33:01,409 INFO L93 Difference]: Finished difference Result 101 states and 166 transitions. [2024-11-28 03:33:01,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:33:01,413 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2024-11-28 03:33:01,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:33:01,420 INFO L225 Difference]: With dead ends: 101 [2024-11-28 03:33:01,420 INFO L226 Difference]: Without dead ends: 48 [2024-11-28 03:33:01,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:33:01,427 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:33:01,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:33:01,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-11-28 03:33:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-11-28 03:33:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2024-11-28 03:33:01,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 69 transitions. [2024-11-28 03:33:01,477 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 69 transitions. Word has length 107 [2024-11-28 03:33:01,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:33:01,477 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 69 transitions. [2024-11-28 03:33:01,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 03:33:01,478 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-28 03:33:01,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 03:33:01,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:33:01,484 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:33:01,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:33:01,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:33:01,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:33:01,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:33:01,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1571827542, now seen corresponding path program 1 times [2024-11-28 03:33:01,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:33:01,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896679162] [2024-11-28 03:33:01,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:33:01,688 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 [2024-11-28 03:33:01,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:33:01,691 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:33:01,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 03:33:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:33:02,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:33:02,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:33:19,508 WARN L286 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:33:35,459 WARN L286 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:34:00,278 WARN L286 SmtUtils]: Spent 7.43s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:34:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 03:34:13,311 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:34:13,312 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:34:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896679162] [2024-11-28 03:34:13,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896679162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:34:13,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:34:13,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-28 03:34:13,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230545115] [2024-11-28 03:34:13,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:34:13,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:34:13,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:34:13,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:34:13,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:34:13,316 INFO L87 Difference]: Start difference. First operand 48 states and 69 transitions. Second operand has 17 states, 17 states have (on average 2.0) internal successors, (34), 15 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:34:23,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:34:33,694 WARN L286 SmtUtils]: Spent 8.42s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:34:44,781 WARN L286 SmtUtils]: Spent 9.01s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:34:46,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:34:59,361 WARN L286 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:35:09,311 WARN L286 SmtUtils]: Spent 7.31s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:35:18,793 WARN L286 SmtUtils]: Spent 5.93s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:35:26,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:35:26,237 INFO L93 Difference]: Finished difference Result 102 states and 133 transitions. [2024-11-28 03:35:26,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:35:26,238 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 15 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 107 [2024-11-28 03:35:26,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:35:26,240 INFO L225 Difference]: With dead ends: 102 [2024-11-28 03:35:26,241 INFO L226 Difference]: Without dead ends: 100 [2024-11-28 03:35:26,241 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 79.9s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-11-28 03:35:26,243 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 78 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:35:26,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 333 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 25.1s Time] [2024-11-28 03:35:26,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-28 03:35:26,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 89. [2024-11-28 03:35:26,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:35:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 120 transitions. [2024-11-28 03:35:26,275 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 120 transitions. Word has length 107 [2024-11-28 03:35:26,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:35:26,278 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 120 transitions. [2024-11-28 03:35:26,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.0) internal successors, (34), 15 states have internal predecessors, (34), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:35:26,279 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2024-11-28 03:35:26,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 03:35:26,281 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:35:26,284 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:35:26,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-28 03:35:26,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:35:26,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:35:26,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:35:26,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1076525382, now seen corresponding path program 1 times [2024-11-28 03:35:26,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:35:26,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [732829552] [2024-11-28 03:35:26,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:35:26,486 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 [2024-11-28 03:35:26,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:35:26,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:35:26,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 03:35:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:35:26,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 03:35:26,869 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:35:43,771 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:35:59,952 WARN L286 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:36:17,477 WARN L286 SmtUtils]: Spent 7.21s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:36:35,177 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:36:53,141 WARN L286 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:37:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 03:37:11,071 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:37:11,071 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:37:11,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [732829552] [2024-11-28 03:37:11,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [732829552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:37:11,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:37:11,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-28 03:37:11,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107438795] [2024-11-28 03:37:11,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:37:11,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:37:11,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:37:11,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:37:11,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:37:11,074 INFO L87 Difference]: Start difference. First operand 89 states and 120 transitions. Second operand has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:37:16,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:37:17,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:37:26,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:37:36,102 WARN L286 SmtUtils]: Spent 7.74s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:37:48,695 WARN L286 SmtUtils]: Spent 7.98s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:38:01,182 WARN L286 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:38:12,875 WARN L286 SmtUtils]: Spent 7.99s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:38:24,504 WARN L286 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:38:36,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:38:36,514 INFO L93 Difference]: Finished difference Result 105 states and 136 transitions. [2024-11-28 03:38:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 03:38:36,515 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 108 [2024-11-28 03:38:36,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:38:36,517 INFO L225 Difference]: With dead ends: 105 [2024-11-28 03:38:36,517 INFO L226 Difference]: Without dead ends: 103 [2024-11-28 03:38:36,518 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 105.2s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:38:36,519 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 98 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:38:36,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 400 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 35.1s Time] [2024-11-28 03:38:36,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-28 03:38:36,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 89. [2024-11-28 03:38:36,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:38:36,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 120 transitions. [2024-11-28 03:38:36,538 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 120 transitions. Word has length 108 [2024-11-28 03:38:36,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:38:36,538 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 120 transitions. [2024-11-28 03:38:36,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 17 states have internal predecessors, (35), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:38:36,539 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2024-11-28 03:38:36,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:38:36,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:38:36,541 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:38:36,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 03:38:36,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:38:36,741 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:38:36,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:38:36,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1225782389, now seen corresponding path program 1 times [2024-11-28 03:38:36,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:38:36,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3611734] [2024-11-28 03:38:36,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:38:36,743 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 [2024-11-28 03:38:36,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:38:36,747 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:38:36,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 (5)] Waiting until timeout for monitored process [2024-11-28 03:38:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:38:37,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 03:38:37,124 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:38:54,113 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:39:08,840 WARN L286 SmtUtils]: Spent 5.75s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:39:32,984 WARN L286 SmtUtils]: Spent 6.54s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:39:58,389 WARN L286 SmtUtils]: Spent 6.86s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:40:09,358 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-28 03:40:09,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:40:09,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:40:09,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3611734] [2024-11-28 03:40:09,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3611734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:40:09,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:40:09,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-28 03:40:09,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543843207] [2024-11-28 03:40:09,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:40:09,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:40:09,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:40:09,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:40:09,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=227, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:40:09,362 INFO L87 Difference]: Start difference. First operand 89 states and 120 transitions. Second operand has 18 states, 18 states have (on average 2.0) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:40:12,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:40:13,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:40:19,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:40:22,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:40:25,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-28 03:40:34,752 WARN L286 SmtUtils]: Spent 7.39s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:40:46,439 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 44 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:40:59,762 WARN L286 SmtUtils]: Spent 7.67s on a formula simplification that was a NOOP. DAG size: 38 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:41:10,049 WARN L286 SmtUtils]: Spent 7.42s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:41:23,105 WARN L286 SmtUtils]: Spent 7.79s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 03:41:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:29,246 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2024-11-28 03:41:29,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 03:41:29,247 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 109 [2024-11-28 03:41:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:29,249 INFO L225 Difference]: With dead ends: 112 [2024-11-28 03:41:29,249 INFO L226 Difference]: Without dead ends: 110 [2024-11-28 03:41:29,250 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 92.3s TimeCoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:41:29,250 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 87 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:29,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 380 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 30.2s Time] [2024-11-28 03:41:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-28 03:41:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 89. [2024-11-28 03:41:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 53 states have internal predecessors, (58), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:41:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 120 transitions. [2024-11-28 03:41:29,268 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 120 transitions. Word has length 109 [2024-11-28 03:41:29,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:29,269 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 120 transitions. [2024-11-28 03:41:29,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.0) internal successors, (36), 16 states have internal predecessors, (36), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-28 03:41:29,269 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2024-11-28 03:41:29,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 03:41:29,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:41:29,271 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:41:29,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 (5)] Ended with exit code 0 [2024-11-28 03:41:29,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:41:29,472 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:41:29,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:41:29,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1223935347, now seen corresponding path program 1 times [2024-11-28 03:41:29,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 03:41:29,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338363079] [2024-11-28 03:41:29,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:41:29,473 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 [2024-11-28 03:41:29,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 03:41:29,477 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 03:41:29,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 (6)] Waiting until timeout for monitored process [2024-11-28 03:41:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:41:29,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:41:29,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:41:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-28 03:41:29,724 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:41:29,725 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 03:41:29,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338363079] [2024-11-28 03:41:29,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338363079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:41:29,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:41:29,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:41:29,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490225989] [2024-11-28 03:41:29,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:41:29,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:41:29,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 03:41:29,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:41:29,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:29,726 INFO L87 Difference]: Start difference. First operand 89 states and 120 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:41:30,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:41:30,690 INFO L93 Difference]: Finished difference Result 149 states and 197 transitions. [2024-11-28 03:41:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:41:30,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-28 03:41:30,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:41:30,692 INFO L225 Difference]: With dead ends: 149 [2024-11-28 03:41:30,692 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:41:30,693 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:41:30,693 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 2 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:41:30,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 118 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:41:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:41:30,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:41:30,695 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) [2024-11-28 03:41:30,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:41:30,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 109 [2024-11-28 03:41:30,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:41:30,696 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:41:30,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-28 03:41:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:41:30,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:41:30,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 03:41:30,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 (6)] Ended with exit code 0 [2024-11-28 03:41:30,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 03:41:30,903 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 03:41:30,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:41:51,328 WARN L286 SmtUtils]: Spent 20.32s on a formula simplification. DAG size of input: 108 DAG size of output: 8 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 03:42:10,040 WARN L286 SmtUtils]: Spent 18.61s on a formula simplification. DAG size of input: 106 DAG size of output: 3 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-28 03:42:10,044 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:42:10,054 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 03:42:10,054 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 03:42:10,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:42:10 BoogieIcfgContainer [2024-11-28 03:42:10,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:42:10,056 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:42:10,056 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:42:10,056 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:42:10,057 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:33:00" (3/4) ... [2024-11-28 03:42:10,060 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:42:10,065 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 03:42:10,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-28 03:42:10,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:42:10,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:42:10,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:42:10,157 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:42:10,157 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:42:10,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:42:10,158 INFO L158 Benchmark]: Toolchain (without parser) took 551948.05ms. Allocated memory was 83.9MB in the beginning and 218.1MB in the end (delta: 134.2MB). Free memory was 60.0MB in the beginning and 157.4MB in the end (delta: -97.3MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-28 03:42:10,159 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:10,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.71ms. Allocated memory is still 83.9MB. Free memory was 59.7MB in the beginning and 46.5MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:42:10,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.54ms. Allocated memory is still 83.9MB. Free memory was 46.5MB in the beginning and 45.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:10,160 INFO L158 Benchmark]: Boogie Preprocessor took 93.36ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 42.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:42:10,160 INFO L158 Benchmark]: RCFGBuilder took 1821.05ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 27.9MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:42:10,160 INFO L158 Benchmark]: TraceAbstraction took 549381.03ms. Allocated memory was 83.9MB in the beginning and 218.1MB in the end (delta: 134.2MB). Free memory was 27.3MB in the beginning and 163.4MB in the end (delta: -136.1MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. [2024-11-28 03:42:10,161 INFO L158 Benchmark]: Witness Printer took 101.57ms. Allocated memory is still 218.1MB. Free memory was 163.4MB in the beginning and 157.4MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:42:10,162 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 454.71ms. Allocated memory is still 83.9MB. Free memory was 59.7MB in the beginning and 46.5MB in the end (delta: 13.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.54ms. Allocated memory is still 83.9MB. Free memory was 46.5MB in the beginning and 45.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 93.36ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 42.7MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1821.05ms. Allocated memory is still 83.9MB. Free memory was 42.7MB in the beginning and 27.9MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 549381.03ms. Allocated memory was 83.9MB in the beginning and 218.1MB in the end (delta: 134.2MB). Free memory was 27.3MB in the beginning and 163.4MB in the end (delta: -136.1MB). Peak memory consumption was 88.7MB. Max. memory is 16.1GB. * Witness Printer took 101.57ms. Allocated memory is still 218.1MB. Free memory was 163.4MB in the beginning and 157.4MB in the end (delta: 6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 510.1s, OverallIterations: 5, TraceHistogramMax: 17, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 239.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 307 SdHoareTripleChecker+Valid, 91.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 265 mSDsluCounter, 1304 SdHoareTripleChecker+Invalid, 89.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 953 mSDsCounter, 167 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1871 IncrementalHoareTripleChecker+Invalid, 2038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 167 mSolverCounterUnsat, 351 mSDtfsCounter, 1871 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 562 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 277.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=2, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 46 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 267.8s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 535 ConstructedInterpolants, 0 QuantifiedInterpolants, 2748 SizeOfPredicates, 43 NumberOfNonLiveVariables, 891 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2720/2720 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:42:10,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb62c02d-7742-4c3c-9f4c-8a972aa396ad/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE