./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.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_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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_44491d79-0bf8-41b8-9930-19ce74ebc220/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 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:37:42,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:37:42,931 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:37:42,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:37:42,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:37:42,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:37:42,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:37:42,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:37:42,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:37:42,983 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:37:42,984 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:37:42,984 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:37:42,984 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:37:42,984 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:37:42,984 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:37:42,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:37:42,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:37:42,986 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:37:42,986 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:37:42,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:37:42,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:37:42,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:37:42,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:37:42,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:37:42,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:37:42,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:37:42,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:37:42,989 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:37:42,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:37:42,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:37:42,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:37:42,990 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:37:42,990 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:37:42,990 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:37:42,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:37:42,991 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_44491d79-0bf8-41b8-9930-19ce74ebc220/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 -> 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da [2024-11-23 22:37:43,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:37:43,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:37:43,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:37:43,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:37:43,307 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:37:43,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i [2024-11-23 22:37:46,336 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/635ce15db/f9ce679f4b2f4ab0b6ad038476350192/FLAGf8af6731b [2024-11-23 22:37:46,636 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:37:46,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i [2024-11-23 22:37:46,645 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/635ce15db/f9ce679f4b2f4ab0b6ad038476350192/FLAGf8af6731b [2024-11-23 22:37:46,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/635ce15db/f9ce679f4b2f4ab0b6ad038476350192 [2024-11-23 22:37:46,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:37:46,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:37:46,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:37:46,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:37:46,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:37:46,687 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:46" (1/1) ... [2024-11-23 22:37:46,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f8f43a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:46, skipping insertion in model container [2024-11-23 22:37:46,691 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:37:46" (1/1) ... [2024-11-23 22:37:46,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:37:46,912 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_44491d79-0bf8-41b8-9930-19ce74ebc220/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i[913,926] [2024-11-23 22:37:46,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:37:47,001 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:37:47,012 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_44491d79-0bf8-41b8-9930-19ce74ebc220/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i[913,926] [2024-11-23 22:37:47,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:37:47,059 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:37:47,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47 WrapperNode [2024-11-23 22:37:47,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:37:47,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:37:47,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:37:47,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:37:47,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,110 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 131 [2024-11-23 22:37:47,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:37:47,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:37:47,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:37:47,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:37:47,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,133 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,150 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]. [2024-11-23 22:37:47,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,158 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:37:47,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:37:47,171 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:37:47,171 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:37:47,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (1/1) ... [2024-11-23 22:37:47,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:37:47,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:37:47,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:37:47,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:37:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:37:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:37:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:37:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:37:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:37:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:37:47,363 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:37:47,367 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:37:47,763 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-23 22:37:47,763 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:37:47,775 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:37:47,775 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:37:47,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:47 BoogieIcfgContainer [2024-11-23 22:37:47,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:37:47,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:37:47,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:37:47,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:37:47,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:37:46" (1/3) ... [2024-11-23 22:37:47,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7919118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:37:47, skipping insertion in model container [2024-11-23 22:37:47,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:37:47" (2/3) ... [2024-11-23 22:37:47,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7919118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:37:47, skipping insertion in model container [2024-11-23 22:37:47,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:47" (3/3) ... [2024-11-23 22:37:47,787 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-66.i [2024-11-23 22:37:47,806 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:37:47,808 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_normal_file-66.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:37:47,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:37:47,888 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;@29ef098c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:37:47,889 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:37:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:37:47,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:37:47,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:47,912 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:47,913 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:47,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-23 22:37:47,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:47,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226140122] [2024-11-23 22:37:47,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:47,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:37:56,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:37:56,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226140122] [2024-11-23 22:37:56,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226140122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:56,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:37:56,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:37:56,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744811200] [2024-11-23 22:37:56,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:56,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:37:56,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:37:56,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:37:56,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:37:56,037 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:37:57,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:57,832 INFO L93 Difference]: Finished difference Result 236 states and 392 transitions. [2024-11-23 22:37:57,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:37:57,836 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:37:57,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:57,846 INFO L225 Difference]: With dead ends: 236 [2024-11-23 22:37:57,846 INFO L226 Difference]: Without dead ends: 178 [2024-11-23 22:37:57,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:37:57,854 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 187 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:57,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 539 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 22:37:57,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-23 22:37:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 102. [2024-11-23 22:37:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:37:57,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-23 22:37:57,945 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-23 22:37:57,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:57,946 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-23 22:37:57,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:37:57,947 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-23 22:37:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:37:57,953 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:57,955 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:57,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:37:57,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:57,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:57,958 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-23 22:37:57,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:37:57,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399070080] [2024-11-23 22:37:57,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:57,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:37:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:05,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:05,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399070080] [2024-11-23 22:38:05,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399070080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:05,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:05,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:38:05,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311589065] [2024-11-23 22:38:05,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:05,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:38:05,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:05,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:38:05,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:38:05,205 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:07,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:07,503 INFO L93 Difference]: Finished difference Result 178 states and 242 transitions. [2024-11-23 22:38:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:38:07,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:07,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:07,509 INFO L225 Difference]: With dead ends: 178 [2024-11-23 22:38:07,509 INFO L226 Difference]: Without dead ends: 176 [2024-11-23 22:38:07,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:38:07,514 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 156 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:07,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 581 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-23 22:38:07,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-11-23 22:38:07,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 102. [2024-11-23 22:38:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:38:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-23 22:38:07,547 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-23 22:38:07,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:07,548 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-23 22:38:07,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:07,549 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-23 22:38:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:07,552 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:07,552 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:07,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:38:07,553 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:07,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:07,554 INFO L85 PathProgramCache]: Analyzing trace with hash 718308833, now seen corresponding path program 1 times [2024-11-23 22:38:07,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:07,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450311304] [2024-11-23 22:38:07,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:07,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:13,868 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:13,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:13,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450311304] [2024-11-23 22:38:13,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450311304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:13,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:13,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 22:38:13,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123587940] [2024-11-23 22:38:13,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:13,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:38:13,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:13,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:38:13,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:38:13,875 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:15,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:15,504 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2024-11-23 22:38:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 22:38:15,505 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:15,508 INFO L225 Difference]: With dead ends: 185 [2024-11-23 22:38:15,508 INFO L226 Difference]: Without dead ends: 183 [2024-11-23 22:38:15,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:38:15,509 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 170 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:15,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 648 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 22:38:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-23 22:38:15,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 106. [2024-11-23 22:38:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:38:15,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 158 transitions. [2024-11-23 22:38:15,531 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 158 transitions. Word has length 119 [2024-11-23 22:38:15,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:15,532 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 158 transitions. [2024-11-23 22:38:15,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 158 transitions. [2024-11-23 22:38:15,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:15,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:15,535 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:15,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 22:38:15,536 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:15,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash 720155875, now seen corresponding path program 1 times [2024-11-23 22:38:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:15,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056027361] [2024-11-23 22:38:15,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:15,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:23,182 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:23,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056027361] [2024-11-23 22:38:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056027361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:23,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:23,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-23 22:38:23,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339328548] [2024-11-23 22:38:23,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:23,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 22:38:23,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:23,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 22:38:23,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:38:23,185 INFO L87 Difference]: Start difference. First operand 106 states and 158 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:25,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:25,138 INFO L93 Difference]: Finished difference Result 183 states and 248 transitions. [2024-11-23 22:38:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:38:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:25,140 INFO L225 Difference]: With dead ends: 183 [2024-11-23 22:38:25,141 INFO L226 Difference]: Without dead ends: 181 [2024-11-23 22:38:25,141 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:38:25,142 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 157 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:25,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 625 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-23 22:38:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-23 22:38:25,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 102. [2024-11-23 22:38:25,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 78 states have internal predecessors, (108), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-23 22:38:25,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 152 transitions. [2024-11-23 22:38:25,164 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 152 transitions. Word has length 119 [2024-11-23 22:38:25,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:25,164 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 152 transitions. [2024-11-23 22:38:25,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:25,165 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 152 transitions. [2024-11-23 22:38:25,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:25,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:25,167 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:25,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 22:38:25,167 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:25,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:25,168 INFO L85 PathProgramCache]: Analyzing trace with hash 296415901, now seen corresponding path program 1 times [2024-11-23 22:38:25,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:25,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219573219] [2024-11-23 22:38:25,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:25,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:25,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:25,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219573219] [2024-11-23 22:38:25,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219573219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:25,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:25,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:38:25,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706719384] [2024-11-23 22:38:25,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:25,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:38:25,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:25,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:38:25,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:38:25,239 INFO L87 Difference]: Start difference. First operand 102 states and 152 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:25,308 INFO L93 Difference]: Finished difference Result 281 states and 422 transitions. [2024-11-23 22:38:25,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:38:25,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:25,313 INFO L225 Difference]: With dead ends: 281 [2024-11-23 22:38:25,313 INFO L226 Difference]: Without dead ends: 182 [2024-11-23 22:38:25,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:38:25,315 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 73 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:25,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 222 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:38:25,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-23 22:38:25,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2024-11-23 22:38:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 131 states have (on average 1.3282442748091603) internal successors, (174), 133 states have internal predecessors, (174), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-23 22:38:25,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 262 transitions. [2024-11-23 22:38:25,357 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 262 transitions. Word has length 119 [2024-11-23 22:38:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:25,359 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 262 transitions. [2024-11-23 22:38:25,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 262 transitions. [2024-11-23 22:38:25,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:25,365 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:25,365 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:25,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 22:38:25,366 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:25,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash -512930725, now seen corresponding path program 1 times [2024-11-23 22:38:25,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:25,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861407200] [2024-11-23 22:38:25,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:25,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:25,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:25,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861407200] [2024-11-23 22:38:25,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861407200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:25,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:25,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:38:25,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009444335] [2024-11-23 22:38:25,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:25,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:38:25,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:25,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:38:25,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:38:25,499 INFO L87 Difference]: Start difference. First operand 180 states and 262 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:25,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:25,797 INFO L93 Difference]: Finished difference Result 530 states and 761 transitions. [2024-11-23 22:38:25,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:38:25,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:25,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:25,802 INFO L225 Difference]: With dead ends: 530 [2024-11-23 22:38:25,802 INFO L226 Difference]: Without dead ends: 353 [2024-11-23 22:38:25,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:38:25,805 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 71 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:25,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 263 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:38:25,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-23 22:38:25,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 308. [2024-11-23 22:38:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 215 states have (on average 1.2976744186046512) internal successors, (279), 218 states have internal predecessors, (279), 84 states have call successors, (84), 8 states have call predecessors, (84), 8 states have return successors, (84), 81 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-23 22:38:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 447 transitions. [2024-11-23 22:38:25,869 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 447 transitions. Word has length 119 [2024-11-23 22:38:25,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:25,869 INFO L471 AbstractCegarLoop]: Abstraction has 308 states and 447 transitions. [2024-11-23 22:38:25,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 447 transitions. [2024-11-23 22:38:25,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:25,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:25,873 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:25,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 22:38:25,874 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:25,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash 167127645, now seen corresponding path program 1 times [2024-11-23 22:38:25,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:25,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870562455] [2024-11-23 22:38:25,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:25,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:25,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:28,994 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:28,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:28,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870562455] [2024-11-23 22:38:28,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870562455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:28,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:28,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-23 22:38:28,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222768528] [2024-11-23 22:38:28,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:28,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 22:38:28,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:28,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 22:38:28,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-23 22:38:28,998 INFO L87 Difference]: Start difference. First operand 308 states and 447 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:30,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:30,275 INFO L93 Difference]: Finished difference Result 454 states and 614 transitions. [2024-11-23 22:38:30,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-23 22:38:30,276 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:30,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:30,283 INFO L225 Difference]: With dead ends: 454 [2024-11-23 22:38:30,283 INFO L226 Difference]: Without dead ends: 452 [2024-11-23 22:38:30,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:38:30,285 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 286 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:30,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 464 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:38:30,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-23 22:38:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 364. [2024-11-23 22:38:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 260 states have (on average 1.2769230769230768) internal successors, (332), 265 states have internal predecessors, (332), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 22:38:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 516 transitions. [2024-11-23 22:38:30,384 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 516 transitions. Word has length 119 [2024-11-23 22:38:30,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:30,385 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 516 transitions. [2024-11-23 22:38:30,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 516 transitions. [2024-11-23 22:38:30,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:30,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:30,389 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:30,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 22:38:30,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:30,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash 168974687, now seen corresponding path program 1 times [2024-11-23 22:38:30,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:30,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720610630] [2024-11-23 22:38:30,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:30,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:35,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:35,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720610630] [2024-11-23 22:38:35,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720610630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:35,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:35,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:38:35,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872574039] [2024-11-23 22:38:35,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:35,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-23 22:38:35,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:35,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-23 22:38:35,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-23 22:38:35,672 INFO L87 Difference]: Start difference. First operand 364 states and 516 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:37,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:37,452 INFO L93 Difference]: Finished difference Result 452 states and 612 transitions. [2024-11-23 22:38:37,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-23 22:38:37,453 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-23 22:38:37,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:37,457 INFO L225 Difference]: With dead ends: 452 [2024-11-23 22:38:37,458 INFO L226 Difference]: Without dead ends: 450 [2024-11-23 22:38:37,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-23 22:38:37,459 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 238 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:37,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 557 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-23 22:38:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-23 22:38:37,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 364. [2024-11-23 22:38:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 260 states have (on average 1.2769230769230768) internal successors, (332), 265 states have internal predecessors, (332), 92 states have call successors, (92), 11 states have call predecessors, (92), 11 states have return successors, (92), 87 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-23 22:38:37,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 516 transitions. [2024-11-23 22:38:37,531 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 516 transitions. Word has length 119 [2024-11-23 22:38:37,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:37,532 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 516 transitions. [2024-11-23 22:38:37,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:38:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 516 transitions. [2024-11-23 22:38:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:37,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:37,534 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:37,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 22:38:37,535 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:37,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:37,535 INFO L85 PathProgramCache]: Analyzing trace with hash -548555551, now seen corresponding path program 1 times [2024-11-23 22:38:37,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:37,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309287372] [2024-11-23 22:38:37,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:37,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-23 22:38:37,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:37,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309287372] [2024-11-23 22:38:37,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309287372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:38:37,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:38:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:38:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070223501] [2024-11-23 22:38:37,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:37,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:38:37,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:37,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:38:37,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:38:37,906 INFO L87 Difference]: Start difference. First operand 364 states and 516 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:38:38,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:38,299 INFO L93 Difference]: Finished difference Result 689 states and 965 transitions. [2024-11-23 22:38:38,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:38:38,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2024-11-23 22:38:38,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:38,308 INFO L225 Difference]: With dead ends: 689 [2024-11-23 22:38:38,309 INFO L226 Difference]: Without dead ends: 371 [2024-11-23 22:38:38,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:38:38,311 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 125 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:38,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 151 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:38:38,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-23 22:38:38,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 362. [2024-11-23 22:38:38,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 252 states have (on average 1.2341269841269842) internal successors, (311), 257 states have internal predecessors, (311), 96 states have call successors, (96), 13 states have call predecessors, (96), 13 states have return successors, (96), 91 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-23 22:38:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 503 transitions. [2024-11-23 22:38:38,383 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 503 transitions. Word has length 119 [2024-11-23 22:38:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:38,384 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 503 transitions. [2024-11-23 22:38:38,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:38:38,385 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 503 transitions. [2024-11-23 22:38:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 22:38:38,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:38,389 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:38,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 22:38:38,389 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:38,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:38,390 INFO L85 PathProgramCache]: Analyzing trace with hash 306968243, now seen corresponding path program 1 times [2024-11-23 22:38:38,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:38,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933092998] [2024-11-23 22:38:38,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:38,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:38:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189677529] [2024-11-23 22:38:38,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:38,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:38,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:38,536 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:38,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:38:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:38,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-23 22:38:38,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 401 proven. 93 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-23 22:38:40,428 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:41,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:38:41,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933092998] [2024-11-23 22:38:41,795 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-23 22:38:41,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189677529] [2024-11-23 22:38:41,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189677529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:41,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:38:41,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-23 22:38:41,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567319825] [2024-11-23 22:38:41,796 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-23 22:38:41,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 22:38:41,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:38:41,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 22:38:41,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:38:41,798 INFO L87 Difference]: Start difference. First operand 362 states and 503 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:38:43,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:43,247 INFO L93 Difference]: Finished difference Result 985 states and 1261 transitions. [2024-11-23 22:38:43,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-23 22:38:43,248 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 120 [2024-11-23 22:38:43,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:43,254 INFO L225 Difference]: With dead ends: 985 [2024-11-23 22:38:43,254 INFO L226 Difference]: Without dead ends: 667 [2024-11-23 22:38:43,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=287, Invalid=973, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 22:38:43,257 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 98 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:43,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 324 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:38:43,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-23 22:38:43,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 553. [2024-11-23 22:38:43,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 386 states have (on average 1.1580310880829014) internal successors, (447), 397 states have internal predecessors, (447), 124 states have call successors, (124), 42 states have call predecessors, (124), 42 states have return successors, (124), 113 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-23 22:38:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 695 transitions. [2024-11-23 22:38:43,390 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 695 transitions. Word has length 120 [2024-11-23 22:38:43,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:43,390 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 695 transitions. [2024-11-23 22:38:43,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 16 states have internal predecessors, (54), 6 states have call successors, (18), 6 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-23 22:38:43,391 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 695 transitions. [2024-11-23 22:38:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-23 22:38:43,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:43,392 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:43,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:38:43,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:43,596 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:43,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash 308815285, now seen corresponding path program 1 times [2024-11-23 22:38:43,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:38:43,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441863140] [2024-11-23 22:38:43,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:43,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:38:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-23 22:38:43,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627743740] [2024-11-23 22:38:43,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:43,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:43,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:43,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:38:43,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:38:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:38:43,992 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:38:44,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:38:44,177 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:38:44,177 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:38:44,178 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:38:44,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:38:44,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:38:44,390 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:44,531 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:38:44,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:38:44 BoogieIcfgContainer [2024-11-23 22:38:44,536 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:38:44,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:38:44,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:38:44,538 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:38:44,538 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:37:47" (3/4) ... [2024-11-23 22:38:44,541 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:38:44,542 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:38:44,543 INFO L158 Benchmark]: Toolchain (without parser) took 57867.45ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 92.6MB in the beginning and 416.2MB in the end (delta: -323.6MB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2024-11-23 22:38:44,544 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:38:44,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.20ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 78.8MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 22:38:44,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.51ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:38:44,545 INFO L158 Benchmark]: Boogie Preprocessor took 59.00ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 71.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:38:44,545 INFO L158 Benchmark]: RCFGBuilder took 605.03ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 53.0MB in the end (delta: 18.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:38:44,546 INFO L158 Benchmark]: TraceAbstraction took 56757.90ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 52.4MB in the beginning and 416.3MB in the end (delta: -363.8MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-23 22:38:44,546 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 503.3MB. Free memory was 416.3MB in the beginning and 416.2MB in the end (delta: 105.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:38:44,548 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.20ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 78.8MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.51ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.2MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.00ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 71.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 605.03ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 53.0MB in the end (delta: 18.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 56757.90ms. Allocated memory was 117.4MB in the beginning and 503.3MB in the end (delta: 385.9MB). Free memory was 52.4MB in the beginning and 416.3MB in the end (delta: -363.8MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 503.3MB. Free memory was 416.3MB in the beginning and 416.2MB in the end (delta: 105.4kB). 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 someBinaryDOUBLEComparisonOperation at line 120. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 50; [L23] signed char var_1_3 = 8; [L24] signed char var_1_4 = 10; [L25] double var_1_5 = 16.5; [L26] signed char var_1_6 = 64; [L27] signed char var_1_7 = 2; [L28] unsigned short int var_1_8 = 256; [L29] unsigned short int var_1_10 = 63583; [L30] unsigned short int var_1_11 = 33789; [L31] unsigned char var_1_12 = 1; [L32] unsigned char var_1_14 = 0; [L33] signed long int var_1_15 = 8; [L34] signed short int var_1_16 = -16; [L35] signed short int var_1_18 = 16; [L36] signed short int var_1_19 = 25; [L37] signed short int var_1_20 = 25; [L38] signed short int var_1_21 = 50; [L39] unsigned char last_1_var_1_12 = 1; VAL [isInitial=0, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=8, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L124] isInitial = 1 [L125] FCALL initially() [L127] CALL updateLastVariables() [L117] last_1_var_1_12 = var_1_12 VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=8, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L127] RET updateLastVariables() [L128] CALL updateVariables() [L88] var_1_3 = __VERIFIER_nondet_char() [L89] CALL assume_abort_if_not(var_1_3 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L89] RET assume_abort_if_not(var_1_3 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L90] CALL assume_abort_if_not(var_1_3 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L90] RET assume_abort_if_not(var_1_3 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=10, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L91] var_1_4 = __VERIFIER_nondet_char() [L92] CALL assume_abort_if_not(var_1_4 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L92] RET assume_abort_if_not(var_1_4 >= -63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L93] CALL assume_abort_if_not(var_1_4 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L93] RET assume_abort_if_not(var_1_4 <= 63) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=64, var_1_7=2, var_1_8=256] [L94] var_1_6 = __VERIFIER_nondet_char() [L95] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L95] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L96] CALL assume_abort_if_not(var_1_6 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L96] RET assume_abort_if_not(var_1_6 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=2, var_1_8=256] [L97] var_1_7 = __VERIFIER_nondet_char() [L98] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L98] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L99] CALL assume_abort_if_not(var_1_7 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L99] RET assume_abort_if_not(var_1_7 <= 127) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=63583, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L100] var_1_10 = __VERIFIER_nondet_ushort() [L101] CALL assume_abort_if_not(var_1_10 >= 49150) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L101] RET assume_abort_if_not(var_1_10 >= 49150) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L102] CALL assume_abort_if_not(var_1_10 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L102] RET assume_abort_if_not(var_1_10 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=33789, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L103] var_1_11 = __VERIFIER_nondet_ushort() [L104] CALL assume_abort_if_not(var_1_11 >= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L104] RET assume_abort_if_not(var_1_11 >= 32767) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L105] CALL assume_abort_if_not(var_1_11 <= 65534) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L105] RET assume_abort_if_not(var_1_11 <= 65534) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L106] var_1_14 = __VERIFIER_nondet_uchar() [L107] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L107] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L108] CALL assume_abort_if_not(var_1_14 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L108] RET assume_abort_if_not(var_1_14 <= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=25, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L109] var_1_20 = __VERIFIER_nondet_short() [L110] CALL assume_abort_if_not(var_1_20 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L110] RET assume_abort_if_not(var_1_20 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L111] CALL assume_abort_if_not(var_1_20 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L111] RET assume_abort_if_not(var_1_20 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=50, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L112] var_1_21 = __VERIFIER_nondet_short() [L113] CALL assume_abort_if_not(var_1_21 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L113] RET assume_abort_if_not(var_1_21 >= 0) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L114] CALL assume_abort_if_not(var_1_21 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L114] RET assume_abort_if_not(var_1_21 <= 16383) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L128] RET updateVariables() [L129] CALL step() [L43] signed char stepLocal_1 = var_1_6; [L44] unsigned char stepLocal_0 = last_1_var_1_12; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_1=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=256] [L45] COND FALSE !(-25 == stepLocal_1) [L50] var_1_8 = ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L52] signed char stepLocal_2 = var_1_7; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_2=127, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L53] COND TRUE var_1_8 >= stepLocal_2 [L54] var_1_12 = (! var_1_14) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=50, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L56] COND TRUE \read(var_1_12) [L57] var_1_1 = (var_1_3 + var_1_4) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L59] COND TRUE var_1_4 >= (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/2, var_1_6=1, var_1_7=127, var_1_8=49278] [L60] COND TRUE \read(var_1_12) [L61] var_1_5 = 8.25 VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L64] signed char stepLocal_4 = var_1_6; VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_4=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=16, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L65] COND TRUE var_1_1 < stepLocal_4 [L66] var_1_18 = (var_1_6 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=-126, var_1_19=25, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L70] COND TRUE \read(var_1_12) [L71] var_1_19 = ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=8, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L73] COND TRUE -64 > (var_1_6 + var_1_19) [L74] var_1_15 = (var_1_11 - var_1_7) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L82] signed long int stepLocal_3 = ((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10); VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, stepLocal_3=49279, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L83] COND FALSE !(var_1_19 > stepLocal_3) VAL [isInitial=1, last_1_var_1_12=1, stepLocal_0=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L129] RET step() [L130] CALL, EXPR property() [L120-L121] return (((((((var_1_12 ? (var_1_1 == ((signed char) (var_1_3 + var_1_4))) : 1) && ((var_1_4 >= (var_1_6 - var_1_7)) ? (var_1_12 ? (var_1_5 == ((double) 8.25)) : 1) : 1)) && ((-25 == var_1_6) ? ((last_1_var_1_12 && last_1_var_1_12) ? (var_1_8 == ((unsigned short int) ((((((var_1_10 - 10) - 16)) > ((var_1_11 - var_1_7))) ? (((var_1_10 - 10) - 16)) : ((var_1_11 - var_1_7)))))) : 1) : (var_1_8 == ((unsigned short int) ((((var_1_7) > (var_1_11)) ? (var_1_7) : (var_1_11))))))) && ((var_1_8 >= var_1_7) ? (var_1_12 == ((unsigned char) (! var_1_14))) : 1)) && ((-64 > (var_1_6 + var_1_19)) ? (var_1_15 == ((signed long int) (var_1_11 - var_1_7))) : ((! var_1_12) ? (var_1_12 ? (var_1_15 == ((signed long int) 4)) : 1) : 1))) && ((var_1_19 > (((((var_1_11) > (var_1_18)) ? (var_1_11) : (var_1_18))) + (var_1_15 / var_1_10))) ? (var_1_16 == ((signed short int) var_1_4)) : 1)) && ((var_1_1 < var_1_6) ? (var_1_18 == ((signed short int) (var_1_6 - var_1_7))) : (var_1_18 == ((signed short int) (((((var_1_6 + var_1_4)) < (var_1_1)) ? ((var_1_6 + var_1_4)) : (var_1_1))))))) && (var_1_12 ? (var_1_19 == ((signed short int) ((var_1_7 - ((((var_1_20) < (var_1_21)) ? (var_1_20) : (var_1_21)))) + var_1_6))) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] [L19] reach_error() VAL [isInitial=1, last_1_var_1_12=1, var_1_10=49150, var_1_11=49278, var_1_12=1, var_1_14=0, var_1_15=49151, var_1_16=-16, var_1_18=-126, var_1_19=-66, var_1_1=0, var_1_20=194, var_1_21=194, var_1_3=-63, var_1_4=63, var_1_5=33/4, var_1_6=1, var_1_7=127, var_1_8=49278] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.5s, OverallIterations: 11, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1566 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1561 mSDsluCounter, 4374 SdHoareTripleChecker+Invalid, 7.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3441 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3681 IncrementalHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 933 mSDtfsCounter, 3681 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 277 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=553occurred in iteration=10, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 650 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 40.2s InterpolantComputationTime, 1551 NumberOfCodeBlocks, 1551 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1181 ConstructedInterpolants, 1 QuantifiedInterpolants, 12305 SizeOfPredicates, 7 NumberOfNonLiveVariables, 289 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 6027/6120 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 [2024-11-23 22:38:44,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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_44491d79-0bf8-41b8-9930-19ce74ebc220/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 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:38:47,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:38:47,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:38:47,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:38:47,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:38:47,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:38:47,866 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:38:47,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:38:47,868 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:38:47,869 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:38:47,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:38:47,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:38:47,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:38:47,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:38:47,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:38:47,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:38:47,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:38:47,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:38:47,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:38:47,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:38:47,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:38:47,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:38:47,873 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:38:47,874 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:38:47,874 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:38:47,874 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:38:47,874 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:38:47,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:38:47,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:38:47,875 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:38:47,875 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:38:47,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:38:47,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:38:47,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:38:47,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:38:47,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:38:47,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:38:47,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:38:47,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:38:47,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:38:47,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:38:47,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:38:47,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:38:47,879 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_44491d79-0bf8-41b8-9930-19ce74ebc220/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 -> 8867ed3eb9bb6f50b3cec69ccd976a6d4dcee2295e8a0520ceede677a47386da [2024-11-23 22:38:48,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:38:48,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:38:48,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:38:48,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:38:48,286 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:38:48,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i [2024-11-23 22:38:51,852 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/4ad215a83/48cfa9bdee1941449ff7efddfd722101/FLAGaae84e774 [2024-11-23 22:38:52,224 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:38:52,226 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i [2024-11-23 22:38:52,240 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/4ad215a83/48cfa9bdee1941449ff7efddfd722101/FLAGaae84e774 [2024-11-23 22:38:52,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/data/4ad215a83/48cfa9bdee1941449ff7efddfd722101 [2024-11-23 22:38:52,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:38:52,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:38:52,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:38:52,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:38:52,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:38:52,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33bb4620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52, skipping insertion in model container [2024-11-23 22:38:52,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:38:52,534 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_44491d79-0bf8-41b8-9930-19ce74ebc220/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i[913,926] [2024-11-23 22:38:52,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:38:52,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:38:52,669 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_44491d79-0bf8-41b8-9930-19ce74ebc220/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_normal_file-66.i[913,926] [2024-11-23 22:38:52,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:38:52,757 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:38:52,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52 WrapperNode [2024-11-23 22:38:52,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:38:52,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:38:52,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:38:52,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:38:52,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,837 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 125 [2024-11-23 22:38:52,838 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:38:52,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:38:52,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:38:52,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:38:52,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,892 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]. [2024-11-23 22:38:52,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,892 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,911 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:38:52,939 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:38:52,939 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:38:52,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:38:52,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (1/1) ... [2024-11-23 22:38:52,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:38:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:38:52,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:38:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:38:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:38:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:38:53,031 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:38:53,032 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:38:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:38:53,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:38:53,154 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:38:53,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:38:53,752 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-23 22:38:53,754 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:38:53,767 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:38:53,767 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:38:53,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:53 BoogieIcfgContainer [2024-11-23 22:38:53,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:38:53,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:38:53,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:38:53,777 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:38:53,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:38:52" (1/3) ... [2024-11-23 22:38:53,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b98dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:53, skipping insertion in model container [2024-11-23 22:38:53,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:38:52" (2/3) ... [2024-11-23 22:38:53,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57b98dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:38:53, skipping insertion in model container [2024-11-23 22:38:53,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:38:53" (3/3) ... [2024-11-23 22:38:53,780 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_normal_file-66.i [2024-11-23 22:38:53,818 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:38:53,820 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_normal_file-66.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:38:53,886 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:38:53,905 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;@47e0f227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:38:53,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:38:53,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 22:38:53,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:38:53,923 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:53,923 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:53,924 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:53,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:53,931 INFO L85 PathProgramCache]: Analyzing trace with hash 38250463, now seen corresponding path program 1 times [2024-11-23 22:38:53,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:38:53,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911494977] [2024-11-23 22:38:53,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:53,945 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 [2024-11-23 22:38:53,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:38:53,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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) [2024-11-23 22:38:53,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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 [2024-11-23 22:38:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:54,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:38:54,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:57,290 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 406 proven. 78 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 22:38:57,292 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:03,273 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:39:03,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911494977] [2024-11-23 22:39:03,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911494977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:03,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1432299830] [2024-11-23 22:39:03,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:39:03,275 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:39:03,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:39:03,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:39:03,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-23 22:39:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:39:03,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:39:03,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 388 proven. 72 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-23 22:39:14,789 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:24,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1432299830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:24,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:39:24,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2024-11-23 22:39:24,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560540603] [2024-11-23 22:39:24,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:39:24,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-23 22:39:24,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:39:24,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-23 22:39:24,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=650, Unknown=1, NotChecked=0, Total=756 [2024-11-23 22:39:24,100 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.425) internal successors, (57), 41 states have internal predecessors, (57), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-23 22:39:43,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:39:47,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.17s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:03,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:40:03,858 INFO L93 Difference]: Finished difference Result 169 states and 274 transitions. [2024-11-23 22:40:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-23 22:40:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) Word has length 119 [2024-11-23 22:40:03,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:40:03,870 INFO L225 Difference]: With dead ends: 169 [2024-11-23 22:40:03,870 INFO L226 Difference]: Without dead ends: 111 [2024-11-23 22:40:03,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 30.0s TimeCoverageRelationStatistics Valid=532, Invalid=2223, Unknown=1, NotChecked=0, Total=2756 [2024-11-23 22:40:03,879 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 206 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:40:03,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 384 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2024-11-23 22:40:03,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-23 22:40:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2024-11-23 22:40:03,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 69 states have (on average 1.2028985507246377) internal successors, (83), 70 states have internal predecessors, (83), 26 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-23 22:40:03,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2024-11-23 22:40:03,946 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 119 [2024-11-23 22:40:03,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:40:03,947 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2024-11-23 22:40:03,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.772727272727273) internal successors, (83), 22 states have internal predecessors, (83), 7 states have call successors, (31), 7 states have call predecessors, (31), 12 states have return successors, (32), 7 states have call predecessors, (32), 7 states have call successors, (32) [2024-11-23 22:40:03,948 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2024-11-23 22:40:03,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-23 22:40:03,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:40:03,952 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:40:03,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-23 22:40:04,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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 [2024-11-23 22:40:04,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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 [2024-11-23 22:40:04,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:40:04,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:40:04,354 INFO L85 PathProgramCache]: Analyzing trace with hash 40097505, now seen corresponding path program 1 times [2024-11-23 22:40:04,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:40:04,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353813253] [2024-11-23 22:40:04,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:40:04,355 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 [2024-11-23 22:40:04,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:40:04,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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) [2024-11-23 22:40:04,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44491d79-0bf8-41b8-9930-19ce74ebc220/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 [2024-11-23 22:40:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:40:04,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-23 22:40:04,596 INFO L279 TraceCheckSpWp]: Computing forward predicates...