./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 64bit --witnessprinter.graph.data.programhash 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 11:11:02,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 11:11:02,214 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 11:11:02,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 11:11:02,220 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 11:11:02,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 11:11:02,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 11:11:02,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 11:11:02,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 11:11:02,253 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 11:11:02,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 11:11:02,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 11:11:02,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 11:11:02,255 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 11:11:02,255 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 11:11:02,255 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 11:11:02,256 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 11:11:02,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 11:11:02,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 11:11:02,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 11:11:02,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 11:11:02,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 11:11:02,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 11:11:02,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 11:11:02,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 11:11:02,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 11:11:02,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 11:11:02,259 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 11:11:02,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 11:11:02,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:11:02,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 11:11:02,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 11:11:02,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 11:11:02,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 11:11:02,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 11:11:02,266 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 11:11:02,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 11:11:02,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 11:11:02,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 11:11:02,267 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b [2024-11-20 11:11:02,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 11:11:02,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 11:11:02,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 11:11:02,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 11:11:02,543 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 11:11:02,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-20 11:11:04,043 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 11:11:04,495 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 11:11:04,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-20 11:11:04,541 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c22da880/52b9c0655a5f4c45b4230aacbb73e052/FLAGc9e9f62fb [2024-11-20 11:11:04,648 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c22da880/52b9c0655a5f4c45b4230aacbb73e052 [2024-11-20 11:11:04,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 11:11:04,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 11:11:04,674 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 11:11:04,675 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 11:11:04,681 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 11:11:04,682 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:11:04" (1/1) ... [2024-11-20 11:11:04,683 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df19ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:04, skipping insertion in model container [2024-11-20 11:11:04,683 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:11:04" (1/1) ... [2024-11-20 11:11:04,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 11:11:05,673 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-11-20 11:11:06,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:11:06,207 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 11:11:06,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5500-5501] [2024-11-20 11:11:06,375 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-11-20 11:11:06,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 11:11:06,601 INFO L204 MainTranslator]: Completed translation [2024-11-20 11:11:06,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06 WrapperNode [2024-11-20 11:11:06,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 11:11:06,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 11:11:06,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 11:11:06,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 11:11:06,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:06,676 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:06,775 INFO L138 Inliner]: procedures = 156, calls = 736, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1722 [2024-11-20 11:11:06,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 11:11:06,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 11:11:06,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 11:11:06,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 11:11:06,788 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:06,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:06,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,075 INFO L175 MemorySlicer]: Split 256 memory accesses to 7 slices as follows [2, 44, 17, 3, 158, 6, 26]. 62 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 0, 0, 0, 0, 6, 26]. The 114 writes are split as follows [0, 44, 17, 2, 51, 0, 0]. [2024-11-20 11:11:07,075 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 11:11:07,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 11:11:07,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 11:11:07,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 11:11:07,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (1/1) ... [2024-11-20 11:11:07,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 11:11:07,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 11:11:07,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 11:11:07,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 11:11:07,325 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2024-11-20 11:11:07,326 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2024-11-20 11:11:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2024-11-20 11:11:07,326 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2024-11-20 11:11:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2024-11-20 11:11:07,326 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2024-11-20 11:11:07,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-20 11:11:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-20 11:11:07,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-20 11:11:07,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-20 11:11:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-20 11:11:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2024-11-20 11:11:07,329 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2024-11-20 11:11:07,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-20 11:11:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-20 11:11:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-20 11:11:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-20 11:11:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-20 11:11:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-20 11:11:07,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-20 11:11:07,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-20 11:11:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-20 11:11:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-20 11:11:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-20 11:11:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-20 11:11:07,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-20 11:11:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-20 11:11:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-20 11:11:07,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-20 11:11:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 11:11:07,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 11:11:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 11:11:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 11:11:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 11:11:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 11:11:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-20 11:11:07,334 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2024-11-20 11:11:07,334 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2024-11-20 11:11:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2024-11-20 11:11:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2024-11-20 11:11:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-20 11:11:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-20 11:11:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2024-11-20 11:11:07,335 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2024-11-20 11:11:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:11:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:11:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:11:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:11:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:11:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:11:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:11:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-20 11:11:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-20 11:11:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-20 11:11:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-20 11:11:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-20 11:11:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-20 11:11:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-20 11:11:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-20 11:11:07,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-20 11:11:07,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-20 11:11:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-20 11:11:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-20 11:11:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-20 11:11:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2024-11-20 11:11:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2024-11-20 11:11:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2024-11-20 11:11:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2024-11-20 11:11:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-20 11:11:07,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-20 11:11:07,338 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2024-11-20 11:11:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2024-11-20 11:11:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2024-11-20 11:11:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2024-11-20 11:11:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-20 11:11:07,339 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-20 11:11:07,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 11:11:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 11:11:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 11:11:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 11:11:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 11:11:07,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 11:11:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-20 11:11:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-20 11:11:07,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-20 11:11:07,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-20 11:11:07,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-20 11:11:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2024-11-20 11:11:07,343 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2024-11-20 11:11:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2024-11-20 11:11:07,343 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2024-11-20 11:11:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 11:11:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 11:11:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2024-11-20 11:11:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2024-11-20 11:11:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 11:11:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-20 11:11:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-20 11:11:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2024-11-20 11:11:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2024-11-20 11:11:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-20 11:11:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-20 11:11:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2024-11-20 11:11:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2024-11-20 11:11:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 11:11:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2024-11-20 11:11:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2024-11-20 11:11:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-20 11:11:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 11:11:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-20 11:11:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-20 11:11:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-20 11:11:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2024-11-20 11:11:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2024-11-20 11:11:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 11:11:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-20 11:11:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2024-11-20 11:11:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2024-11-20 11:11:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 11:11:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 11:11:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 11:11:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 11:11:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-20 11:11:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-20 11:11:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-20 11:11:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-20 11:11:07,350 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-20 11:11:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-20 11:11:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-20 11:11:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2024-11-20 11:11:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2024-11-20 11:11:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2024-11-20 11:11:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2024-11-20 11:11:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2024-11-20 11:11:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2024-11-20 11:11:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2024-11-20 11:11:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2024-11-20 11:11:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-20 11:11:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-20 11:11:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 11:11:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2024-11-20 11:11:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2024-11-20 11:11:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-20 11:11:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-20 11:11:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2024-11-20 11:11:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2024-11-20 11:11:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-20 11:11:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-20 11:11:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-20 11:11:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-20 11:11:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-20 11:11:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-20 11:11:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2024-11-20 11:11:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2024-11-20 11:11:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2024-11-20 11:11:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2024-11-20 11:11:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-20 11:11:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-20 11:11:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 11:11:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 11:11:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 11:11:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 11:11:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 11:11:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 11:11:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-20 11:11:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-20 11:11:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-20 11:11:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-20 11:11:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-20 11:11:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-20 11:11:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-20 11:11:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-20 11:11:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-20 11:11:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-20 11:11:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2024-11-20 11:11:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2024-11-20 11:11:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 11:11:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 11:11:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2024-11-20 11:11:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2024-11-20 11:11:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2024-11-20 11:11:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2024-11-20 11:11:07,894 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 11:11:07,897 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 11:11:08,063 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-20 11:11:08,799 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-20 11:11:14,136 INFO L? ?]: Removed 873 outVars from TransFormulas that were not future-live. [2024-11-20 11:11:14,136 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 11:11:14,177 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 11:11:14,181 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-20 11:11:14,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:14 BoogieIcfgContainer [2024-11-20 11:11:14,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 11:11:14,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 11:11:14,186 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 11:11:14,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 11:11:14,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:11:04" (1/3) ... [2024-11-20 11:11:14,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c9ebe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:14, skipping insertion in model container [2024-11-20 11:11:14,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:11:06" (2/3) ... [2024-11-20 11:11:14,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c9ebe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:11:14, skipping insertion in model container [2024-11-20 11:11:14,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:11:14" (3/3) ... [2024-11-20 11:11:14,193 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-20 11:11:14,210 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 11:11:14,211 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 11:11:14,332 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 11:11:14,340 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;@3b508cf4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 11:11:14,341 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 11:11:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 892 states, 635 states have (on average 1.373228346456693) internal successors, (872), 659 states have internal predecessors, (872), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-20 11:11:14,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 11:11:14,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:14,375 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:14,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:14,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:14,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1381869314, now seen corresponding path program 1 times [2024-11-20 11:11:14,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:14,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50585582] [2024-11-20 11:11:14,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:14,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:11:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:11:15,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:11:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:11:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-20 11:11:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 11:11:15,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50585582] [2024-11-20 11:11:15,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50585582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:15,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:15,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 11:11:15,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520518270] [2024-11-20 11:11:15,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:15,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 11:11:15,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:15,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 11:11:15,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 11:11:15,750 INFO L87 Difference]: Start difference. First operand has 892 states, 635 states have (on average 1.373228346456693) internal successors, (872), 659 states have internal predecessors, (872), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 11:11:19,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:23,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:28,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:28,050 INFO L93 Difference]: Finished difference Result 2717 states and 3928 transitions. [2024-11-20 11:11:28,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:11:28,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-20 11:11:28,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:28,092 INFO L225 Difference]: With dead ends: 2717 [2024-11-20 11:11:28,093 INFO L226 Difference]: Without dead ends: 1808 [2024-11-20 11:11:28,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:28,110 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 1886 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 597 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 1608 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:28,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 1608 Invalid, 2127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [597 Valid, 1528 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2024-11-20 11:11:28,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2024-11-20 11:11:28,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 1694. [2024-11-20 11:11:28,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1215 states have (on average 1.3530864197530865) internal successors, (1644), 1242 states have internal predecessors, (1644), 370 states have call successors, (370), 109 states have call predecessors, (370), 108 states have return successors, (365), 355 states have call predecessors, (365), 365 states have call successors, (365) [2024-11-20 11:11:28,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2379 transitions. [2024-11-20 11:11:28,316 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2379 transitions. Word has length 56 [2024-11-20 11:11:28,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:28,317 INFO L471 AbstractCegarLoop]: Abstraction has 1694 states and 2379 transitions. [2024-11-20 11:11:28,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 11:11:28,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2379 transitions. [2024-11-20 11:11:28,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 11:11:28,326 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:28,327 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:28,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 11:11:28,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:28,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash 310822282, now seen corresponding path program 1 times [2024-11-20 11:11:28,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:28,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907803718] [2024-11-20 11:11:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:28,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:11:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:11:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:11:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:11:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-20 11:11:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 11:11:29,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:29,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907803718] [2024-11-20 11:11:29,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907803718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:29,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:29,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 11:11:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724092340] [2024-11-20 11:11:29,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:29,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 11:11:29,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 11:11:29,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:29,218 INFO L87 Difference]: Start difference. First operand 1694 states and 2379 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:11:33,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:37,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:41,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:41,951 INFO L93 Difference]: Finished difference Result 5443 states and 7803 transitions. [2024-11-20 11:11:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 11:11:41,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59 [2024-11-20 11:11:41,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:42,048 INFO L225 Difference]: With dead ends: 5443 [2024-11-20 11:11:42,049 INFO L226 Difference]: Without dead ends: 3764 [2024-11-20 11:11:42,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:11:42,061 INFO L432 NwaCegarLoop]: 665 mSDtfsCounter, 2044 mSDsluCounter, 1328 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 668 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 2512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:42,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 1993 Invalid, 2512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 1842 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2024-11-20 11:11:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2024-11-20 11:11:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3432. [2024-11-20 11:11:42,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3432 states, 2463 states have (on average 1.3503857084855866) internal successors, (3326), 2513 states have internal predecessors, (3326), 742 states have call successors, (742), 217 states have call predecessors, (742), 226 states have return successors, (793), 727 states have call predecessors, (793), 737 states have call successors, (793) [2024-11-20 11:11:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3432 states to 3432 states and 4861 transitions. [2024-11-20 11:11:42,257 INFO L78 Accepts]: Start accepts. Automaton has 3432 states and 4861 transitions. Word has length 59 [2024-11-20 11:11:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:42,258 INFO L471 AbstractCegarLoop]: Abstraction has 3432 states and 4861 transitions. [2024-11-20 11:11:42,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:11:42,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3432 states and 4861 transitions. [2024-11-20 11:11:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 11:11:42,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:42,262 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:42,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 11:11:42,263 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:42,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1045074158, now seen corresponding path program 1 times [2024-11-20 11:11:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:42,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116434731] [2024-11-20 11:11:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:42,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:11:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:11:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:11:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:11:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-20 11:11:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 11:11:43,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:43,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116434731] [2024-11-20 11:11:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116434731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:43,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:43,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 11:11:43,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693538154] [2024-11-20 11:11:43,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:43,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 11:11:43,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:43,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 11:11:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:43,269 INFO L87 Difference]: Start difference. First operand 3432 states and 4861 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:11:47,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:51,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:11:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:11:57,002 INFO L93 Difference]: Finished difference Result 10901 states and 15779 transitions. [2024-11-20 11:11:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 11:11:57,003 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 60 [2024-11-20 11:11:57,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:11:57,056 INFO L225 Difference]: With dead ends: 10901 [2024-11-20 11:11:57,056 INFO L226 Difference]: Without dead ends: 7484 [2024-11-20 11:11:57,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:11:57,076 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 2035 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 656 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 2540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 656 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2024-11-20 11:11:57,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 2061 Invalid, 2540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [656 Valid, 1882 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2024-11-20 11:11:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7484 states. [2024-11-20 11:11:57,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7484 to 6901. [2024-11-20 11:11:57,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 4952 states have (on average 1.3469305331179322) internal successors, (6670), 5048 states have internal predecessors, (6670), 1486 states have call successors, (1486), 433 states have call predecessors, (1486), 462 states have return successors, (1697), 1471 states have call predecessors, (1697), 1481 states have call successors, (1697) [2024-11-20 11:11:57,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 9853 transitions. [2024-11-20 11:11:57,565 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 9853 transitions. Word has length 60 [2024-11-20 11:11:57,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:11:57,567 INFO L471 AbstractCegarLoop]: Abstraction has 6901 states and 9853 transitions. [2024-11-20 11:11:57,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:11:57,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 9853 transitions. [2024-11-20 11:11:57,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 11:11:57,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:11:57,571 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:11:57,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 11:11:57,571 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:11:57,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:11:57,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1962916595, now seen corresponding path program 1 times [2024-11-20 11:11:57,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:11:57,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288636667] [2024-11-20 11:11:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:11:57,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:11:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:11:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:11:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:11:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:11:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:11:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-20 11:11:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:11:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 11:11:58,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:11:58,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288636667] [2024-11-20 11:11:58,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288636667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:11:58,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:11:58,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 11:11:58,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171975773] [2024-11-20 11:11:58,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:11:58,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 11:11:58,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:11:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 11:11:58,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:11:58,129 INFO L87 Difference]: Start difference. First operand 6901 states and 9853 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:12:02,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:12:06,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:12:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:12:10,782 INFO L93 Difference]: Finished difference Result 7482 states and 10768 transitions. [2024-11-20 11:12:10,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 11:12:10,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2024-11-20 11:12:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:12:10,825 INFO L225 Difference]: With dead ends: 7482 [2024-11-20 11:12:10,826 INFO L226 Difference]: Without dead ends: 7479 [2024-11-20 11:12:10,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:12:10,832 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 2029 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 652 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2024-11-20 11:12:10,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 2068 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1873 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2024-11-20 11:12:10,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7479 states. [2024-11-20 11:12:11,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7479 to 6902. [2024-11-20 11:12:11,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6902 states, 4953 states have (on average 1.346860488592772) internal successors, (6671), 5049 states have internal predecessors, (6671), 1486 states have call successors, (1486), 433 states have call predecessors, (1486), 462 states have return successors, (1697), 1471 states have call predecessors, (1697), 1481 states have call successors, (1697) [2024-11-20 11:12:11,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6902 states to 6902 states and 9854 transitions. [2024-11-20 11:12:11,258 INFO L78 Accepts]: Start accepts. Automaton has 6902 states and 9854 transitions. Word has length 61 [2024-11-20 11:12:11,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:12:11,261 INFO L471 AbstractCegarLoop]: Abstraction has 6902 states and 9854 transitions. [2024-11-20 11:12:11,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:12:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 6902 states and 9854 transitions. [2024-11-20 11:12:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 11:12:11,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:12:11,265 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:12:11,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 11:12:11,265 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:12:11,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:12:11,265 INFO L85 PathProgramCache]: Analyzing trace with hash -721344559, now seen corresponding path program 1 times [2024-11-20 11:12:11,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:12:11,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043992996] [2024-11-20 11:12:11,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:12:11,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 11:12:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 11:12:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 11:12:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-20 11:12:11,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 11:12:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 11:12:11,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-20 11:12:11,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 11:12:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-20 11:12:11,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 11:12:11,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043992996] [2024-11-20 11:12:11,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043992996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 11:12:11,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 11:12:11,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 11:12:11,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877659722] [2024-11-20 11:12:11,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 11:12:11,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 11:12:11,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 11:12:11,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 11:12:11,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 11:12:11,842 INFO L87 Difference]: Start difference. First operand 6902 states and 9854 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:12:15,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:12:19,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 11:12:22,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 11:12:22,355 INFO L93 Difference]: Finished difference Result 7478 states and 10764 transitions. [2024-11-20 11:12:22,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 11:12:22,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2024-11-20 11:12:22,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 11:12:22,415 INFO L225 Difference]: With dead ends: 7478 [2024-11-20 11:12:22,415 INFO L226 Difference]: Without dead ends: 7475 [2024-11-20 11:12:22,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-20 11:12:22,421 INFO L432 NwaCegarLoop]: 603 mSDtfsCounter, 1959 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 749 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 749 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-20 11:12:22,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 1014 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [749 Valid, 881 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2024-11-20 11:12:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2024-11-20 11:12:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 6901. [2024-11-20 11:12:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 4953 states have (on average 1.346658590753079) internal successors, (6670), 5048 states have internal predecessors, (6670), 1485 states have call successors, (1485), 433 states have call predecessors, (1485), 462 states have return successors, (1697), 1471 states have call predecessors, (1697), 1481 states have call successors, (1697) [2024-11-20 11:12:22,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 9852 transitions. [2024-11-20 11:12:22,837 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 9852 transitions. Word has length 62 [2024-11-20 11:12:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 11:12:22,838 INFO L471 AbstractCegarLoop]: Abstraction has 6901 states and 9852 transitions. [2024-11-20 11:12:22,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-20 11:12:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 9852 transitions. [2024-11-20 11:12:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 11:12:22,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 11:12:22,841 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 11:12:22,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 11:12:22,842 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 11:12:22,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 11:12:22,842 INFO L85 PathProgramCache]: Analyzing trace with hash -887312240, now seen corresponding path program 1 times [2024-11-20 11:12:22,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 11:12:22,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153638640] [2024-11-20 11:12:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 11:12:22,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms