./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC --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 cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:34:58,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:34:58,155 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:34:58,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:34:58,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:34:58,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:34:58,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:34:58,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:34:58,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:34:58,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:34:58,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:34:58,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:34:58,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:34:58,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:34:58,197 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:34:58,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:34:58,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:34:58,198 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:34:58,198 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:34:58,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:34:58,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:34:58,199 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:34:58,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:34:58,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:34:58,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:34:58,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:34:58,200 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:34:58,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:34:58,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:34:58,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:34:58,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:34:58,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:34:58,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:34:58,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:34:58,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:34:58,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:34:58,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:34:58,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:34:58,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:34:58,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:34:58,202 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:34:58,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:34:58,203 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:34:58,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:34:58,203 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:34:58,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:34:58,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:34:58,204 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:34:58,204 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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC 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 -> cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 [2024-11-24 00:34:58,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:34:58,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:34:58,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:34:58,616 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:34:58,617 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:34:58,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2024-11-24 00:35:02,486 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/7ceef7446/d2749feb2fef4c0ca5f38d249af0cb35/FLAGce33d2b3d [2024-11-24 00:35:02,876 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:35:02,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2024-11-24 00:35:02,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/7ceef7446/d2749feb2fef4c0ca5f38d249af0cb35/FLAGce33d2b3d [2024-11-24 00:35:02,905 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/7ceef7446/d2749feb2fef4c0ca5f38d249af0cb35 [2024-11-24 00:35:02,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:35:02,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:35:02,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:35:02,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:35:02,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:35:02,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:35:02" (1/1) ... [2024-11-24 00:35:02,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b353fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:02, skipping insertion in model container [2024-11-24 00:35:02,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:35:02" (1/1) ... [2024-11-24 00:35:02,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:35:03,123 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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2024-11-24 00:35:03,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:35:03,191 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:35:03,203 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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2024-11-24 00:35:03,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:35:03,253 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:35:03,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03 WrapperNode [2024-11-24 00:35:03,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:35:03,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:35:03,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:35:03,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:35:03,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,305 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 117 [2024-11-24 00:35:03,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:35:03,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:35:03,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:35:03,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:35:03,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,322 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,349 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]. [2024-11-24 00:35:03,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,365 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,385 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:35:03,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:35:03,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:35:03,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:35:03,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (1/1) ... [2024-11-24 00:35:03,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:35:03,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:03,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:35:03,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:35:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:35:03,489 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:35:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:35:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:35:03,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:35:03,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:35:03,612 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:35:03,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:35:03,981 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:35:03,982 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:35:03,998 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:35:03,999 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:35:03,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:35:03 BoogieIcfgContainer [2024-11-24 00:35:03,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:35:04,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:35:04,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:35:04,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:35:04,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:35:02" (1/3) ... [2024-11-24 00:35:04,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7e221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:35:04, skipping insertion in model container [2024-11-24 00:35:04,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:03" (2/3) ... [2024-11-24 00:35:04,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7e221d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:35:04, skipping insertion in model container [2024-11-24 00:35:04,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:35:03" (3/3) ... [2024-11-24 00:35:04,012 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-8.i [2024-11-24 00:35:04,032 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:35:04,034 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-8.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:35:04,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:35:04,120 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;@77993063, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:35:04,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:35:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:04,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:04,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:04,138 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:04,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:04,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:04,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1472964719, now seen corresponding path program 1 times [2024-11-24 00:35:04,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:04,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463723544] [2024-11-24 00:35:04,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:04,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:04,586 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 00:35:04,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:35:04,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463723544] [2024-11-24 00:35:04,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463723544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:35:04,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890329732] [2024-11-24 00:35:04,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:04,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:04,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:04,603 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:35:04,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:35:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:04,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:35:04,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 00:35:04,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:35:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890329732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:35:04,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:35:04,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:35:04,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276730431] [2024-11-24 00:35:04,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:35:04,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:35:04,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:35:04,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:35:04,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:35:04,948 INFO L87 Difference]: Start difference. First operand has 55 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 00:35:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:04,981 INFO L93 Difference]: Finished difference Result 103 states and 176 transitions. [2024-11-24 00:35:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:35:04,987 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2024-11-24 00:35:04,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:04,999 INFO L225 Difference]: With dead ends: 103 [2024-11-24 00:35:04,999 INFO L226 Difference]: Without dead ends: 51 [2024-11-24 00:35:05,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:35:05,011 INFO L435 NwaCegarLoop]: 74 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, 74 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 [2024-11-24 00:35:05,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:35:05,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-24 00:35:05,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-24 00:35:05,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2024-11-24 00:35:05,098 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 125 [2024-11-24 00:35:05,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:05,099 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2024-11-24 00:35:05,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 00:35:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2024-11-24 00:35:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:05,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:05,103 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:05,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:35:05,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:35:05,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:05,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash -286332501, now seen corresponding path program 1 times [2024-11-24 00:35:05,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:05,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162343711] [2024-11-24 00:35:05,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:05,914 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 00:35:05,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:35:05,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162343711] [2024-11-24 00:35:05,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162343711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:35:05,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:35:05,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:35:05,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363820885] [2024-11-24 00:35:05,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:35:05,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:35:05,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:35:05,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:35:05,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:35:05,923 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 00:35:06,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:06,164 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2024-11-24 00:35:06,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:35:06,165 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-24 00:35:06,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:06,167 INFO L225 Difference]: With dead ends: 99 [2024-11-24 00:35:06,168 INFO L226 Difference]: Without dead ends: 51 [2024-11-24 00:35:06,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:35:06,173 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 49 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:06,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 69 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:35:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-24 00:35:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-24 00:35:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-11-24 00:35:06,205 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 125 [2024-11-24 00:35:06,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:06,208 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-11-24 00:35:06,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 00:35:06,210 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-11-24 00:35:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:06,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:06,215 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:06,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:35:06,215 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:06,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 393725869, now seen corresponding path program 1 times [2024-11-24 00:35:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238733025] [2024-11-24 00:35:06,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:06,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:06,798 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 00:35:06,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:35:06,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238733025] [2024-11-24 00:35:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238733025] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:35:06,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892121228] [2024-11-24 00:35:06,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:06,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:06,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:35:06,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:35:06,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:07,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 00:35:07,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-24 00:35:07,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:35:08,009 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 00:35:08,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892121228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:35:08,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:35:08,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-24 00:35:08,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665306789] [2024-11-24 00:35:08,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:35:08,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:35:08,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:35:08,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:35:08,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:35:08,017 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 00:35:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:08,371 INFO L93 Difference]: Finished difference Result 107 states and 150 transitions. [2024-11-24 00:35:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:35:08,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 125 [2024-11-24 00:35:08,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:08,377 INFO L225 Difference]: With dead ends: 107 [2024-11-24 00:35:08,377 INFO L226 Difference]: Without dead ends: 59 [2024-11-24 00:35:08,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:35:08,381 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 31 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:08,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 100 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:35:08,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-24 00:35:08,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2024-11-24 00:35:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:08,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2024-11-24 00:35:08,415 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 125 [2024-11-24 00:35:08,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:08,416 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-24 00:35:08,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 00:35:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2024-11-24 00:35:08,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:08,422 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:08,423 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:08,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:35:08,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:35:08,624 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:08,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:08,625 INFO L85 PathProgramCache]: Analyzing trace with hash 395572911, now seen corresponding path program 1 times [2024-11-24 00:35:08,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:35:08,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091632180] [2024-11-24 00:35:08,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:08,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:35:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:35:08,735 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:35:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:35:08,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:35:08,952 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:35:08,953 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:35:08,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:35:08,961 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 00:35:09,128 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:35:09,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:35:09 BoogieIcfgContainer [2024-11-24 00:35:09,138 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:35:09,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:35:09,140 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:35:09,140 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:35:09,141 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:35:03" (3/4) ... [2024-11-24 00:35:09,145 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:35:09,146 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:35:09,147 INFO L158 Benchmark]: Toolchain (without parser) took 6236.57ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 101.5MB in the beginning and 264.1MB in the end (delta: -162.6MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-11-24 00:35:09,148 INFO L158 Benchmark]: CDTParser took 2.05ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:35:09,149 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.64ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 88.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:35:09,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.83ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 86.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:35:09,149 INFO L158 Benchmark]: Boogie Preprocessor took 81.82ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 83.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:35:09,150 INFO L158 Benchmark]: RCFGBuilder took 610.71ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 68.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:35:09,150 INFO L158 Benchmark]: TraceAbstraction took 5135.53ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 67.5MB in the beginning and 264.1MB in the end (delta: -196.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-24 00:35:09,153 INFO L158 Benchmark]: Witness Printer took 7.37ms. Allocated memory is still 360.7MB. Free memory was 264.1MB in the beginning and 264.1MB in the end (delta: 41.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:35:09,155 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.05ms. Allocated memory is still 167.8MB. Free memory is still 105.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.64ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 88.7MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.83ms. Allocated memory is still 142.6MB. Free memory was 88.7MB in the beginning and 86.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.82ms. Allocated memory is still 142.6MB. Free memory was 86.5MB in the beginning and 83.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 610.71ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 68.1MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5135.53ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 67.5MB in the beginning and 264.1MB in the end (delta: -196.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 7.37ms. Allocated memory is still 360.7MB. Free memory was 264.1MB in the beginning and 264.1MB in the end (delta: 41.5kB). 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 82, overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someBinaryFLOATComparisonOperation at line 97, overapproximation of someBinaryFLOATComparisonOperation at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 0; [L23] unsigned char var_1_4 = 0; [L24] unsigned char var_1_5 = 0; [L25] unsigned char var_1_6 = 0; [L26] unsigned char var_1_7 = 0; [L27] signed long int var_1_8 = 64; [L28] signed char var_1_11 = 2; [L29] signed char var_1_12 = 32; [L30] signed char var_1_13 = 2; [L31] float var_1_14 = 31.325; [L32] float var_1_15 = 7.4; [L33] float var_1_16 = 7.375; [L34] unsigned short int var_1_17 = 256; [L35] unsigned short int var_1_19 = 24509; [L36] unsigned short int var_1_20 = 32; [L37] unsigned short int var_1_21 = 4; [L38] signed char last_1_var_1_11 = 2; VAL [isInitial=0, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L101] isInitial = 1 [L102] FCALL initially() [L104] CALL updateLastVariables() [L94] last_1_var_1_11 = var_1_11 VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L104] RET updateLastVariables() [L105] CALL updateVariables() [L61] var_1_4 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L62] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L63] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L63] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L64] var_1_5 = __VERIFIER_nondet_uchar() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_6=0, var_1_7=0, var_1_8=64] [L66] CALL assume_abort_if_not(var_1_5 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L66] RET assume_abort_if_not(var_1_5 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L67] var_1_6 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L68] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_7=0, var_1_8=64] [L69] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L69] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=0, var_1_8=64] [L70] var_1_7 = __VERIFIER_nondet_uchar() [L71] CALL assume_abort_if_not(var_1_7 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L71] RET assume_abort_if_not(var_1_7 >= 1) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L72] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L72] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=32, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L73] var_1_12 = __VERIFIER_nondet_char() [L74] CALL assume_abort_if_not(var_1_12 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L74] RET assume_abort_if_not(var_1_12 >= -63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L75] CALL assume_abort_if_not(var_1_12 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L75] RET assume_abort_if_not(var_1_12 <= 63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=2, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L76] var_1_13 = __VERIFIER_nondet_char() [L77] CALL assume_abort_if_not(var_1_13 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L77] RET assume_abort_if_not(var_1_13 >= -63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L78] CALL assume_abort_if_not(var_1_13 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L78] RET assume_abort_if_not(var_1_13 <= 63) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_15=37/5, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L79] var_1_15 = __VERIFIER_nondet_float() [L80] CALL assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L80] RET assume_abort_if_not((var_1_15 >= 0.0F && var_1_15 <= -1.0e-20F) || (var_1_15 <= 9223372.036854765600e+12F && var_1_15 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_16=59/8, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L81] var_1_16 = __VERIFIER_nondet_float() [L82] 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, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L82] 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, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=24509, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L83] var_1_19 = __VERIFIER_nondet_ushort() [L84] CALL assume_abort_if_not(var_1_19 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L84] RET assume_abort_if_not(var_1_19 >= 16383) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L85] CALL assume_abort_if_not(var_1_19 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L85] RET assume_abort_if_not(var_1_19 <= 32767) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=32, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L86] var_1_20 = __VERIFIER_nondet_ushort() [L87] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L87] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L88] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L88] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=4, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L89] var_1_21 = __VERIFIER_nondet_ushort() [L90] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L90] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L91] CALL assume_abort_if_not(var_1_21 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L91] RET assume_abort_if_not(var_1_21 <= 32767) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L105] RET updateVariables() [L106] CALL step() [L42] COND FALSE !(((((16) < 0 ) ? -(16) : (16))) < last_1_var_1_11) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_14=1253/40, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L45] var_1_14 = (var_1_15 - var_1_16) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=256, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L46] COND TRUE var_1_14 <= ((var_1_15 - var_1_16) * var_1_14) [L47] var_1_17 = ((var_1_19 - var_1_20) + var_1_21) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=16383, var_1_19=-1073643522, var_1_1=0, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L51] COND FALSE !(var_1_17 >= (8u * var_1_17)) [L54] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=16383, var_1_19=-1073643522, var_1_1=-255, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L56] COND FALSE !(\read(var_1_5)) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=16383, var_1_19=-1073643522, var_1_1=-255, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L106] RET step() [L107] CALL, EXPR property() [L97-L98] return (((((var_1_17 >= (8u * var_1_17)) ? (var_1_1 == ((unsigned char) (! (var_1_4 || (var_1_5 || var_1_6))))) : (var_1_1 == ((unsigned char) var_1_7))) && (var_1_5 ? (var_1_8 == ((signed long int) (var_1_17 + var_1_11))) : 1)) && ((((((16) < 0 ) ? -(16) : (16))) < last_1_var_1_11) ? (var_1_11 == ((signed char) (var_1_12 + var_1_13))) : 1)) && (var_1_14 == ((float) (var_1_15 - var_1_16)))) && ((var_1_14 <= ((var_1_15 - var_1_16) * var_1_14)) ? (var_1_17 == ((unsigned short int) ((var_1_19 - var_1_20) + var_1_21))) : (var_1_17 == ((unsigned short int) var_1_20))) ; VAL [\result=0, isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=16383, var_1_19=-1073643522, var_1_1=-255, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L107] RET, EXPR property() [L107] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=16383, var_1_19=-1073643522, var_1_1=-255, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] [L19] reach_error() VAL [isInitial=1, last_1_var_1_11=2, var_1_11=2, var_1_12=63, var_1_13=63, var_1_17=16383, var_1_19=-1073643522, var_1_1=-255, var_1_20=16383, var_1_21=0, var_1_4=0, var_1_5=0, var_1_6=0, var_1_7=-255, var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 4, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 190 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 390 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 750 NumberOfCodeBlocks, 750 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 744 ConstructedInterpolants, 0 QuantifiedInterpolants, 1490 SizeOfPredicates, 1 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4378/4560 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 [2024-11-24 00:35:09,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC --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 cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:35:12,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:35:12,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:35:12,690 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:35:12,690 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:35:12,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:35:12,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:35:12,755 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:35:12,755 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:35:12,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:35:12,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:35:12,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:35:12,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:35:12,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:35:12,758 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:35:12,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:35:12,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:35:12,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:35:12,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:35:12,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:35:12,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:35:12,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:35:12,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:35:12,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:35:12,761 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:35:12,761 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:35:12,762 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:35:12,762 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:35:12,762 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:35:12,762 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:35:12,762 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:35:12,763 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:35:12,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:35:12,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:35:12,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:35:12,765 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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC 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 -> cf8b375ecaf5e7f492500087304bb604d88ab477e5c68263b7ad030500238492 [2024-11-24 00:35:13,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:35:13,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:35:13,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:35:13,172 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:35:13,172 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:35:13,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2024-11-24 00:35:16,993 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/1a75d546b/3a15072181894f619ce152f8fa56fe45/FLAG5bf6ec976 [2024-11-24 00:35:17,356 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:35:17,358 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i [2024-11-24 00:35:17,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/1a75d546b/3a15072181894f619ce152f8fa56fe45/FLAG5bf6ec976 [2024-11-24 00:35:17,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/data/1a75d546b/3a15072181894f619ce152f8fa56fe45 [2024-11-24 00:35:17,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:35:17,593 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:35:17,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:35:17,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:35:17,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:35:17,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:17,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a891f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17, skipping insertion in model container [2024-11-24 00:35:17,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:17,638 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:35:17,844 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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2024-11-24 00:35:17,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:35:17,917 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:35:17,932 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_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-8.i[914,927] [2024-11-24 00:35:17,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:35:17,994 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:35:17,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17 WrapperNode [2024-11-24 00:35:17,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:35:17,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:35:17,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:35:17,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:35:18,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,072 INFO L138 Inliner]: procedures = 27, calls = 33, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2024-11-24 00:35:18,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:35:18,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:35:18,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:35:18,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:35:18,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,122 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]. [2024-11-24 00:35:18,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:35:18,163 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:35:18,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:35:18,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:35:18,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (1/1) ... [2024-11-24 00:35:18,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:35:18,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:35:18,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:35:18,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:35:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:35:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:35:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:35:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:35:18,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:35:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:35:18,350 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:35:18,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:35:21,132 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:35:21,132 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:35:21,145 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:35:21,148 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:35:21,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:35:21 BoogieIcfgContainer [2024-11-24 00:35:21,149 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:35:21,152 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:35:21,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:35:21,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:35:21,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:35:17" (1/3) ... [2024-11-24 00:35:21,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9be7681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:35:21, skipping insertion in model container [2024-11-24 00:35:21,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:35:17" (2/3) ... [2024-11-24 00:35:21,161 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9be7681 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:35:21, skipping insertion in model container [2024-11-24 00:35:21,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:35:21" (3/3) ... [2024-11-24 00:35:21,164 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-8.i [2024-11-24 00:35:21,183 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:35:21,185 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-8.i that has 2 procedures, 55 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:35:21,248 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:35:21,264 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;@30efa164, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:35:21,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:35:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:21,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:21,284 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:21,285 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:21,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:21,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1472964719, now seen corresponding path program 1 times [2024-11-24 00:35:21,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:35:21,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862405377] [2024-11-24 00:35:21,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:21,304 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 [2024-11-24 00:35:21,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:35:21,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 00:35:21,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:21,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:35:21,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:21,833 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-24 00:35:21,833 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:35:21,834 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:35:21,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862405377] [2024-11-24 00:35:21,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862405377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:35:21,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:35:21,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:35:21,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920056028] [2024-11-24 00:35:21,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:35:21,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:35:21,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:35:21,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:35:21,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:35:21,871 INFO L87 Difference]: Start difference. First operand has 55 states, 32 states have (on average 1.28125) internal successors, (41), 33 states have internal predecessors, (41), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 00:35:21,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:21,904 INFO L93 Difference]: Finished difference Result 103 states and 176 transitions. [2024-11-24 00:35:21,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:35:21,907 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 125 [2024-11-24 00:35:21,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:21,915 INFO L225 Difference]: With dead ends: 103 [2024-11-24 00:35:21,915 INFO L226 Difference]: Without dead ends: 51 [2024-11-24 00:35:21,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:35:21,923 INFO L435 NwaCegarLoop]: 74 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, 74 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 [2024-11-24 00:35:21,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:35:21,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-24 00:35:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-24 00:35:21,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:21,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2024-11-24 00:35:21,983 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 125 [2024-11-24 00:35:21,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:21,984 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2024-11-24 00:35:21,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 00:35:21,985 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2024-11-24 00:35:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:21,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:21,991 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:21,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-24 00:35:22,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:22,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:22,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:22,193 INFO L85 PathProgramCache]: Analyzing trace with hash -286332501, now seen corresponding path program 1 times [2024-11-24 00:35:22,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:35:22,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870870457] [2024-11-24 00:35:22,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:22,194 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 [2024-11-24 00:35:22,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:35:22,197 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 00:35:22,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:22,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:35:22,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 00:35:23,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:35:23,336 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:35:23,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870870457] [2024-11-24 00:35:23,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870870457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:35:23,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:35:23,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:35:23,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093700538] [2024-11-24 00:35:23,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:35:23,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:35:23,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:35:23,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:35:23,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:35:23,342 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 00:35:24,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:35:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:24,898 INFO L93 Difference]: Finished difference Result 99 states and 145 transitions. [2024-11-24 00:35:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:35:24,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 125 [2024-11-24 00:35:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:24,911 INFO L225 Difference]: With dead ends: 99 [2024-11-24 00:35:24,912 INFO L226 Difference]: Without dead ends: 51 [2024-11-24 00:35:24,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:35:24,913 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:24,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 69 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 00:35:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-24 00:35:24,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-24 00:35:24,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:24,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 73 transitions. [2024-11-24 00:35:24,933 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 73 transitions. Word has length 125 [2024-11-24 00:35:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:24,935 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 73 transitions. [2024-11-24 00:35:24,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 00:35:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 73 transitions. [2024-11-24 00:35:24,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:24,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:24,942 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:24,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:25,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:25,143 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:25,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:25,143 INFO L85 PathProgramCache]: Analyzing trace with hash 393725869, now seen corresponding path program 1 times [2024-11-24 00:35:25,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:35:25,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202389913] [2024-11-24 00:35:25,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:25,144 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 [2024-11-24 00:35:25,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:35:25,147 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 00:35:25,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:25,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:35:25,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:35:26,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 217 proven. 48 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-11-24 00:35:26,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:35:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 48 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 00:35:26,600 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:35:26,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202389913] [2024-11-24 00:35:26,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202389913] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:35:26,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:35:26,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-24 00:35:26,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868949071] [2024-11-24 00:35:26,601 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:35:26,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:35:26,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:35:26,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:35:26,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:35:26,604 INFO L87 Difference]: Start difference. First operand 51 states and 73 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 00:35:28,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 00:35:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:35:29,018 INFO L93 Difference]: Finished difference Result 107 states and 150 transitions. [2024-11-24 00:35:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:35:29,028 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 125 [2024-11-24 00:35:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:35:29,030 INFO L225 Difference]: With dead ends: 107 [2024-11-24 00:35:29,030 INFO L226 Difference]: Without dead ends: 59 [2024-11-24 00:35:29,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 242 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:35:29,032 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 31 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:35:29,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 99 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:35:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-24 00:35:29,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2024-11-24 00:35:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:35:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2024-11-24 00:35:29,056 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 125 [2024-11-24 00:35:29,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:35:29,057 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-24 00:35:29,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-24 00:35:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2024-11-24 00:35:29,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:35:29,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:35:29,061 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:35:29,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:29,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:29,262 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:35:29,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:35:29,263 INFO L85 PathProgramCache]: Analyzing trace with hash 395572911, now seen corresponding path program 1 times [2024-11-24 00:35:29,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:35:29,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485560291] [2024-11-24 00:35:29,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:35:29,264 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 [2024-11-24 00:35:29,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:35:29,269 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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) [2024-11-24 00:35:29,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce7d6b0f-79ca-4aca-8e09-6a0926cacfe0/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-24 00:35:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:35:29,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-24 00:35:29,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:36:41,292 WARN L286 SmtUtils]: Spent 13.66s on a formula simplification that was a NOOP. DAG size: 48 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:37:36,396 WARN L286 SmtUtils]: Spent 14.85s on a formula simplification that was a NOOP. DAG size: 50 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 00:38:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 545 proven. 144 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-24 00:38:50,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:46:47,944 WARN L286 SmtUtils]: Spent 22.29s on a formula simplification that was a NOOP. DAG size: 169 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)