./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 61a67961 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.fs.cvc5-61a6796-m [2024-10-14 15:21:21,860 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 15:21:21,923 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 15:21:21,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 15:21:21,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 15:21:21,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 15:21:21,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 15:21:21,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 15:21:21,957 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 15:21:21,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 15:21:21,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 15:21:21,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 15:21:21,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 15:21:21,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 15:21:21,960 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 15:21:21,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 15:21:21,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 15:21:21,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 15:21:21,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 15:21:21,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 15:21:21,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 15:21:21,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 15:21:21,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 15:21:21,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 15:21:21,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 15:21:21,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 15:21:21,964 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 15:21:21,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 15:21:21,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 15:21:21,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 15:21:21,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 15:21:21,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 15:21:21,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 15:21:21,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 15:21:21,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 15:21:21,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 15:21:21,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 15:21:21,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 15:21:21,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 15:21:21,974 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b [2024-10-14 15:21:22,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 15:21:22,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 15:21:22,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 15:21:22,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 15:21:22,304 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 15:21:22,305 INFO L431 ainManager$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 [2024-10-14 15:21:23,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 15:21:24,223 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 15:21:24,224 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 [2024-10-14 15:21:24,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85bc7de6f/5f6ce372649f4f6083a5d11e97dc8ca7/FLAG48c63ad3e [2024-10-14 15:21:24,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85bc7de6f/5f6ce372649f4f6083a5d11e97dc8ca7 [2024-10-14 15:21:24,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 15:21:24,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 15:21:24,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 15:21:24,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 15:21:24,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 15:21:24,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:21:24" (1/1) ... [2024-10-14 15:21:24,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f3d819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:24, skipping insertion in model container [2024-10-14 15:21:24,286 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:21:24" (1/1) ... [2024-10-14 15:21:24,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 15:21:25,268 WARN L248 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] [2024-10-14 15:21:25,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 15:21:25,922 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 15:21:26,015 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] [2024-10-14 15:21:26,025 WARN L248 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] [2024-10-14 15:21:26,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 15:21:26,189 INFO L204 MainTranslator]: Completed translation [2024-10-14 15:21:26,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26 WrapperNode [2024-10-14 15:21:26,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 15:21:26,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 15:21:26,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 15:21:26,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 15:21:26,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,412 INFO L138 Inliner]: procedures = 157, calls = 723, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1707 [2024-10-14 15:21:26,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 15:21:26,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 15:21:26,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 15:21:26,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 15:21:26,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,425 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,447 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,701 INFO L175 MemorySlicer]: Split 241 memory accesses to 7 slices as follows [2, 42, 16, 3, 158, 6, 14]. 66 percent of accesses are in the largest equivalence class. The 66 initializations are split as follows [2, 42, 16, 0, 0, 6, 0]. The 67 writes are split as follows [0, 0, 0, 2, 51, 0, 14]. [2024-10-14 15:21:26,702 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,702 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,823 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,853 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 15:21:26,854 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 15:21:26,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 15:21:26,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 15:21:26,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (1/1) ... [2024-10-14 15:21:26,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 15:21:26,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:21:26,889 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) [2024-10-14 15:21:26,892 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 [2024-10-14 15:21:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2024-10-14 15:21:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2024-10-14 15:21:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2024-10-14 15:21:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2024-10-14 15:21:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2024-10-14 15:21:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2024-10-14 15:21:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-14 15:21:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-14 15:21:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-14 15:21:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-14 15:21:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-14 15:21:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-14 15:21:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-10-14 15:21:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-10-14 15:21:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-10-14 15:21:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-10-14 15:21:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-10-14 15:21:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2024-10-14 15:21:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2024-10-14 15:21:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-10-14 15:21:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-10-14 15:21:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-10-14 15:21:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-10-14 15:21:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-10-14 15:21:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-10-14 15:21:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-10-14 15:21:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-14 15:21:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-14 15:21:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-14 15:21:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-14 15:21:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-14 15:21:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-10-14 15:21:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2024-10-14 15:21:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2024-10-14 15:21:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2024-10-14 15:21:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-10-14 15:21:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2024-10-14 15:21:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-10-14 15:21:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-10-14 15:21:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-10-14 15:21:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-10-14 15:21:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-10-14 15:21:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-10-14 15:21:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-14 15:21:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-10-14 15:21:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-10-14 15:21:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2024-10-14 15:21:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2024-10-14 15:21:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2024-10-14 15:21:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2024-10-14 15:21:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-10-14 15:21:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-10-14 15:21:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2024-10-14 15:21:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2024-10-14 15:21:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-10-14 15:21:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-14 15:21:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-14 15:21:26,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-14 15:21:26,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-14 15:21:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-14 15:21:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-14 15:21:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-14 15:21:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-14 15:21:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2024-10-14 15:21:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2024-10-14 15:21:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2024-10-14 15:21:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2024-10-14 15:21:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 15:21:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 15:21:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2024-10-14 15:21:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2024-10-14 15:21:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-14 15:21:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-10-14 15:21:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-10-14 15:21:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2024-10-14 15:21:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2024-10-14 15:21:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-10-14 15:21:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-10-14 15:21:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2024-10-14 15:21:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2024-10-14 15:21:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 15:21:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2024-10-14 15:21:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2024-10-14 15:21:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2024-10-14 15:21:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2024-10-14 15:21:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-10-14 15:21:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-10-14 15:21:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-14 15:21:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2024-10-14 15:21:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2024-10-14 15:21:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-10-14 15:21:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-10-14 15:21:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2024-10-14 15:21:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2024-10-14 15:21:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-14 15:21:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-14 15:21:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-14 15:21:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-14 15:21:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-14 15:21:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-14 15:21:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-14 15:21:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-10-14 15:21:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-10-14 15:21:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-10-14 15:21:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-10-14 15:21:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2024-10-14 15:21:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2024-10-14 15:21:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2024-10-14 15:21:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2024-10-14 15:21:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2024-10-14 15:21:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2024-10-14 15:21:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2024-10-14 15:21:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-10-14 15:21:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2024-10-14 15:21:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2024-10-14 15:21:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2024-10-14 15:21:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2024-10-14 15:21:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-10-14 15:21:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-10-14 15:21:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-10-14 15:21:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-10-14 15:21:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-10-14 15:21:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2024-10-14 15:21:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2024-10-14 15:21:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 15:21:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 15:21:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2024-10-14 15:21:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2024-10-14 15:21:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2024-10-14 15:21:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2024-10-14 15:21:27,536 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 15:21:27,541 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 15:21:27,686 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-10-14 15:21:28,266 INFO L733 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-10-14 15:21:29,843 INFO L? ?]: Removed 873 outVars from TransFormulas that were not future-live. [2024-10-14 15:21:29,843 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 15:21:29,986 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 15:21:29,987 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 15:21:29,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:21:29 BoogieIcfgContainer [2024-10-14 15:21:29,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 15:21:29,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 15:21:29,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 15:21:29,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 15:21:29,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:21:24" (1/3) ... [2024-10-14 15:21:29,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37326b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:21:29, skipping insertion in model container [2024-10-14 15:21:29,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:21:26" (2/3) ... [2024-10-14 15:21:29,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37326b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:21:29, skipping insertion in model container [2024-10-14 15:21:29,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:21:29" (3/3) ... [2024-10-14 15:21:29,996 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-10-14 15:21:30,013 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 15:21:30,013 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 15:21:30,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 15:21:30,121 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;@32c28810, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 15:21:30,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 15:21:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 807 states, 550 states have (on average 1.430909090909091) internal successors, (787), 574 states have internal predecessors, (787), 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) [2024-10-14 15:21:30,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 15:21:30,149 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:30,150 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] [2024-10-14 15:21:30,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:30,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1298131049, now seen corresponding path program 1 times [2024-10-14 15:21:30,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:30,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971720071] [2024-10-14 15:21:30,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:30,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 15:21:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:30,978 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 15:21:30,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:30,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971720071] [2024-10-14 15:21:30,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971720071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:30,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:30,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 15:21:30,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134954292] [2024-10-14 15:21:30,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:30,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 15:21:30,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 15:21:31,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 15:21:31,017 INFO L87 Difference]: Start difference. First operand has 807 states, 550 states have (on average 1.430909090909091) internal successors, (787), 574 states have internal predecessors, (787), 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 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-10-14 15:21:34,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:21:34,717 INFO L93 Difference]: Finished difference Result 2459 states and 3670 transitions. [2024-10-14 15:21:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 15:21:34,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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 48 [2024-10-14 15:21:34,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:21:34,754 INFO L225 Difference]: With dead ends: 2459 [2024-10-14 15:21:34,754 INFO L226 Difference]: Without dead ends: 1636 [2024-10-14 15:21:34,768 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 [2024-10-14 15:21:34,773 INFO L432 NwaCegarLoop]: 615 mSDtfsCounter, 1709 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 15:21:34,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 1440 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-14 15:21:34,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-10-14 15:21:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1544. [2024-10-14 15:21:34,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1065 states have (on average 1.4028169014084506) internal successors, (1494), 1092 states have internal predecessors, (1494), 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) [2024-10-14 15:21:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2229 transitions. [2024-10-14 15:21:34,967 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2229 transitions. Word has length 48 [2024-10-14 15:21:34,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:21:34,969 INFO L471 AbstractCegarLoop]: Abstraction has 1544 states and 2229 transitions. [2024-10-14 15:21:34,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 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) [2024-10-14 15:21:34,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2229 transitions. [2024-10-14 15:21:34,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 15:21:34,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:34,978 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] [2024-10-14 15:21:34,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 15:21:34,978 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:34,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:34,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1671720691, now seen corresponding path program 1 times [2024-10-14 15:21:34,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:34,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168394469] [2024-10-14 15:21:34,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:34,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:21:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 15:21:35,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:35,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168394469] [2024-10-14 15:21:35,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168394469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:35,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:35,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 15:21:35,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412694556] [2024-10-14 15:21:35,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:35,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:21:35,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:35,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:21:35,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:21:35,459 INFO L87 Difference]: Start difference. First operand 1544 states and 2229 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-10-14 15:21:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:21:39,733 INFO L93 Difference]: Finished difference Result 4939 states and 7299 transitions. [2024-10-14 15:21:39,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 15:21:39,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 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 55 [2024-10-14 15:21:39,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:21:39,760 INFO L225 Difference]: With dead ends: 4939 [2024-10-14 15:21:39,760 INFO L226 Difference]: Without dead ends: 3407 [2024-10-14 15:21:39,768 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 [2024-10-14 15:21:39,770 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 2595 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 1604 mSolverCounterSat, 1200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 2804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 1604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-14 15:21:39,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2757 Valid, 1418 Invalid, 2804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1200 Valid, 1604 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-14 15:21:39,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3407 states. [2024-10-14 15:21:39,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3407 to 3129. [2024-10-14 15:21:39,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3129 states, 2160 states have (on average 1.399537037037037) internal successors, (3023), 2210 states have internal predecessors, (3023), 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) [2024-10-14 15:21:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 4558 transitions. [2024-10-14 15:21:40,018 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 4558 transitions. Word has length 55 [2024-10-14 15:21:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:21:40,019 INFO L471 AbstractCegarLoop]: Abstraction has 3129 states and 4558 transitions. [2024-10-14 15:21:40,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-10-14 15:21:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 4558 transitions. [2024-10-14 15:21:40,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-14 15:21:40,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:40,024 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] [2024-10-14 15:21:40,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 15:21:40,025 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:40,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:40,025 INFO L85 PathProgramCache]: Analyzing trace with hash -284215861, now seen corresponding path program 1 times [2024-10-14 15:21:40,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:40,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186529148] [2024-10-14 15:21:40,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:40,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:40,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:21:40,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 15:21:40,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:40,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186529148] [2024-10-14 15:21:40,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186529148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:40,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:40,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 15:21:40,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760892673] [2024-10-14 15:21:40,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:40,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:21:40,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:40,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:21:40,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:21:40,462 INFO L87 Difference]: Start difference. First operand 3129 states and 4558 transitions. Second operand has 5 states, 5 states have (on average 6.2) 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), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-14 15:21:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:21:44,885 INFO L93 Difference]: Finished difference Result 9890 states and 14768 transitions. [2024-10-14 15:21:44,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 15:21:44,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) 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), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2024-10-14 15:21:44,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:21:44,930 INFO L225 Difference]: With dead ends: 9890 [2024-10-14 15:21:44,930 INFO L226 Difference]: Without dead ends: 6773 [2024-10-14 15:21:44,942 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 [2024-10-14 15:21:44,945 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 2566 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1631 mSolverCounterSat, 1163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1163 IncrementalHoareTripleChecker+Valid, 1631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-14 15:21:44,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 1468 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1163 Valid, 1631 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-14 15:21:44,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-10-14 15:21:45,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6292. [2024-10-14 15:21:45,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 4343 states have (on average 1.3955790927930003) internal successors, (6061), 4439 states have internal predecessors, (6061), 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) [2024-10-14 15:21:45,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 9244 transitions. [2024-10-14 15:21:45,307 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 9244 transitions. Word has length 56 [2024-10-14 15:21:45,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:21:45,308 INFO L471 AbstractCegarLoop]: Abstraction has 6292 states and 9244 transitions. [2024-10-14 15:21:45,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) 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), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-10-14 15:21:45,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 9244 transitions. [2024-10-14 15:21:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-14 15:21:45,311 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:45,311 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] [2024-10-14 15:21:45,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 15:21:45,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:45,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:45,313 INFO L85 PathProgramCache]: Analyzing trace with hash -221234224, now seen corresponding path program 1 times [2024-10-14 15:21:45,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:45,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710910603] [2024-10-14 15:21:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:45,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:21:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 15:21:45,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:45,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710910603] [2024-10-14 15:21:45,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710910603] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:45,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:45,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 15:21:45,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109328840] [2024-10-14 15:21:45,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:45,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:21:45,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:45,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:21:45,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:21:45,588 INFO L87 Difference]: Start difference. First operand 6292 states and 9244 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-14 15:21:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:21:49,210 INFO L93 Difference]: Finished difference Result 6771 states and 10057 transitions. [2024-10-14 15:21:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 15:21:49,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 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 57 [2024-10-14 15:21:49,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:21:49,299 INFO L225 Difference]: With dead ends: 6771 [2024-10-14 15:21:49,299 INFO L226 Difference]: Without dead ends: 6768 [2024-10-14 15:21:49,303 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 [2024-10-14 15:21:49,304 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 2558 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 1151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1151 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-14 15:21:49,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 1464 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1151 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-14 15:21:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2024-10-14 15:21:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6293. [2024-10-14 15:21:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6293 states, 4344 states have (on average 1.39548802946593) internal successors, (6062), 4440 states have internal predecessors, (6062), 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) [2024-10-14 15:21:49,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9245 transitions. [2024-10-14 15:21:49,679 INFO L78 Accepts]: Start accepts. Automaton has 6293 states and 9245 transitions. Word has length 57 [2024-10-14 15:21:49,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:21:49,681 INFO L471 AbstractCegarLoop]: Abstraction has 6293 states and 9245 transitions. [2024-10-14 15:21:49,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-14 15:21:49,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6293 states and 9245 transitions. [2024-10-14 15:21:49,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-14 15:21:49,683 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:49,684 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] [2024-10-14 15:21:49,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 15:21:49,685 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:49,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1731201390, now seen corresponding path program 1 times [2024-10-14 15:21:49,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:49,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473836080] [2024-10-14 15:21:49,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:49,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:49,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:21:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:49,999 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 15:21:50,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:50,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473836080] [2024-10-14 15:21:50,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473836080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:50,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:50,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 15:21:50,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452263609] [2024-10-14 15:21:50,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:50,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:21:50,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:50,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:21:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:21:50,002 INFO L87 Difference]: Start difference. First operand 6293 states and 9245 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-14 15:21:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:21:52,428 INFO L93 Difference]: Finished difference Result 6767 states and 10053 transitions. [2024-10-14 15:21:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 15:21:52,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 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 58 [2024-10-14 15:21:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:21:52,481 INFO L225 Difference]: With dead ends: 6767 [2024-10-14 15:21:52,482 INFO L226 Difference]: Without dead ends: 6764 [2024-10-14 15:21:52,494 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 [2024-10-14 15:21:52,495 INFO L432 NwaCegarLoop]: 540 mSDtfsCounter, 1392 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-10-14 15:21:52,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1185 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-10-14 15:21:52,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6764 states. [2024-10-14 15:21:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6764 to 6292. [2024-10-14 15:21:52,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6292 states, 4344 states have (on average 1.3952578268876612) internal successors, (6061), 4439 states have internal predecessors, (6061), 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) [2024-10-14 15:21:52,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6292 states to 6292 states and 9243 transitions. [2024-10-14 15:21:52,887 INFO L78 Accepts]: Start accepts. Automaton has 6292 states and 9243 transitions. Word has length 58 [2024-10-14 15:21:52,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:21:52,888 INFO L471 AbstractCegarLoop]: Abstraction has 6292 states and 9243 transitions. [2024-10-14 15:21:52,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-14 15:21:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand 6292 states and 9243 transitions. [2024-10-14 15:21:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-14 15:21:52,891 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:52,891 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] [2024-10-14 15:21:52,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 15:21:52,891 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:52,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:52,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2127168147, now seen corresponding path program 1 times [2024-10-14 15:21:52,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:52,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147421737] [2024-10-14 15:21:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:52,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:53,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:21:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:53,113 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-14 15:21:53,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:53,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147421737] [2024-10-14 15:21:53,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147421737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:53,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:53,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 15:21:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714517470] [2024-10-14 15:21:53,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:53,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:21:53,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:53,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:21:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 15:21:53,117 INFO L87 Difference]: Start difference. First operand 6292 states and 9243 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) [2024-10-14 15:21:55,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:21:55,409 INFO L93 Difference]: Finished difference Result 6766 states and 10051 transitions. [2024-10-14 15:21:55,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 15:21:55,409 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 [2024-10-14 15:21:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:21:55,446 INFO L225 Difference]: With dead ends: 6766 [2024-10-14 15:21:55,446 INFO L226 Difference]: Without dead ends: 6751 [2024-10-14 15:21:55,451 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 [2024-10-14 15:21:55,452 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 1389 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-14 15:21:55,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 1184 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 1059 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-14 15:21:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6751 states. [2024-10-14 15:21:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6751 to 6279. [2024-10-14 15:21:55,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6279 states, 4334 states have (on average 1.3947854176280572) internal successors, (6045), 4428 states have internal predecessors, (6045), 1483 states have call successors, (1483), 432 states have call predecessors, (1483), 461 states have return successors, (1696), 1470 states have call predecessors, (1696), 1480 states have call successors, (1696) [2024-10-14 15:21:55,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6279 states to 6279 states and 9224 transitions. [2024-10-14 15:21:55,868 INFO L78 Accepts]: Start accepts. Automaton has 6279 states and 9224 transitions. Word has length 59 [2024-10-14 15:21:55,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:21:55,868 INFO L471 AbstractCegarLoop]: Abstraction has 6279 states and 9224 transitions. [2024-10-14 15:21:55,868 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) [2024-10-14 15:21:55,868 INFO L276 IsEmpty]: Start isEmpty. Operand 6279 states and 9224 transitions. [2024-10-14 15:21:55,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-14 15:21:55,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:21:55,881 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:21:55,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 15:21:55,882 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:21:55,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:21:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash 35623484, now seen corresponding path program 1 times [2024-10-14 15:21:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:21:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305674400] [2024-10-14 15:21:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:21:55,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:21:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:21:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:21:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:21:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:21:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:21:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 15:21:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 15:21:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 15:21:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 15:21:56,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 15:21:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 15:21:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:21:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 15:21:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 15:21:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 15:21:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 15:21:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 15:21:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 15:21:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 15:21:56,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 15:21:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 15:21:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-14 15:21:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:21:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-14 15:21:56,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:21:56,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305674400] [2024-10-14 15:21:56,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305674400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:21:56,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:21:56,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 15:21:56,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502299296] [2024-10-14 15:21:56,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:21:56,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 15:21:56,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:21:56,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 15:21:56,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 15:21:56,304 INFO L87 Difference]: Start difference. First operand 6279 states and 9224 transitions. Second operand has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-14 15:22:01,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:22:01,648 INFO L93 Difference]: Finished difference Result 17517 states and 25745 transitions. [2024-10-14 15:22:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 15:22:01,649 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 160 [2024-10-14 15:22:01,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:22:01,700 INFO L225 Difference]: With dead ends: 17517 [2024-10-14 15:22:01,700 INFO L226 Difference]: Without dead ends: 11250 [2024-10-14 15:22:01,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-10-14 15:22:01,728 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 4307 mSDsluCounter, 1753 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 2500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4383 SdHoareTripleChecker+Valid, 2268 SdHoareTripleChecker+Invalid, 4657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2500 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-14 15:22:01,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4383 Valid, 2268 Invalid, 4657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2500 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-14 15:22:01,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11250 states. [2024-10-14 15:22:02,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11250 to 9887. [2024-10-14 15:22:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9887 states, 6914 states have (on average 1.40381833960081) internal successors, (9706), 7040 states have internal predecessors, (9706), 2181 states have call successors, (2181), 720 states have call predecessors, (2181), 791 states have return successors, (2344), 2198 states have call predecessors, (2344), 2178 states have call successors, (2344) [2024-10-14 15:22:02,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9887 states to 9887 states and 14231 transitions. [2024-10-14 15:22:02,643 INFO L78 Accepts]: Start accepts. Automaton has 9887 states and 14231 transitions. Word has length 160 [2024-10-14 15:22:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:22:02,644 INFO L471 AbstractCegarLoop]: Abstraction has 9887 states and 14231 transitions. [2024-10-14 15:22:02,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.666666666666666) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (24), 8 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-14 15:22:02,645 INFO L276 IsEmpty]: Start isEmpty. Operand 9887 states and 14231 transitions. [2024-10-14 15:22:02,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 15:22:02,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:22:02,661 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:22:02,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 15:22:02,662 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:22:02,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:22:02,662 INFO L85 PathProgramCache]: Analyzing trace with hash -866353012, now seen corresponding path program 1 times [2024-10-14 15:22:02,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:22:02,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800992891] [2024-10-14 15:22:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:22:02,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:22:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:22:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:22:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:22:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:22:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:22:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 15:22:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:02,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 15:22:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 15:22:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 15:22:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 15:22:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 15:22:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 15:22:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 15:22:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 15:22:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 15:22:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 15:22:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 15:22:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-14 15:22:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-14 15:22:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-14 15:22:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-14 15:22:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 15:22:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 15:22:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-10-14 15:22:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:03,152 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-14 15:22:03,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:22:03,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800992891] [2024-10-14 15:22:03,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800992891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:22:03,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:22:03,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 15:22:03,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849485997] [2024-10-14 15:22:03,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:22:03,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 15:22:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:22:03,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 15:22:03,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-14 15:22:03,155 INFO L87 Difference]: Start difference. First operand 9887 states and 14231 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 15:22:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:22:08,192 INFO L93 Difference]: Finished difference Result 21127 states and 30747 transitions. [2024-10-14 15:22:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 15:22:08,192 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 188 [2024-10-14 15:22:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:22:08,249 INFO L225 Difference]: With dead ends: 21127 [2024-10-14 15:22:08,249 INFO L226 Difference]: Without dead ends: 11252 [2024-10-14 15:22:08,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-14 15:22:08,284 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 3507 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 2128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 4231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2128 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-14 15:22:08,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 2303 Invalid, 4231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2128 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-14 15:22:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11252 states. [2024-10-14 15:22:09,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11252 to 9895. [2024-10-14 15:22:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9895 states, 6922 states have (on average 1.402484830973707) internal successors, (9708), 7048 states have internal predecessors, (9708), 2181 states have call successors, (2181), 720 states have call predecessors, (2181), 791 states have return successors, (2344), 2198 states have call predecessors, (2344), 2178 states have call successors, (2344) [2024-10-14 15:22:09,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9895 states to 9895 states and 14233 transitions. [2024-10-14 15:22:09,291 INFO L78 Accepts]: Start accepts. Automaton has 9895 states and 14233 transitions. Word has length 188 [2024-10-14 15:22:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:22:09,292 INFO L471 AbstractCegarLoop]: Abstraction has 9895 states and 14233 transitions. [2024-10-14 15:22:09,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 15:22:09,292 INFO L276 IsEmpty]: Start isEmpty. Operand 9895 states and 14233 transitions. [2024-10-14 15:22:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-14 15:22:09,306 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:22:09,306 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:22:09,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 15:22:09,306 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:22:09,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:22:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1026231950, now seen corresponding path program 1 times [2024-10-14 15:22:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:22:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294574348] [2024-10-14 15:22:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:22:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:22:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:22:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:22:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:22:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:22:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:22:09,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 15:22:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 15:22:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 15:22:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 15:22:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 15:22:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 15:22:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 15:22:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 15:22:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 15:22:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 15:22:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 15:22:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 15:22:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 15:22:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 15:22:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 15:22:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 15:22:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 15:22:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-14 15:22:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-14 15:22:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-10-14 15:22:09,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:22:09,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294574348] [2024-10-14 15:22:09,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294574348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:22:09,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 15:22:09,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 15:22:09,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033818750] [2024-10-14 15:22:09,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:22:09,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 15:22:09,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:22:09,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 15:22:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 15:22:09,750 INFO L87 Difference]: Start difference. First operand 9895 states and 14233 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-10-14 15:22:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:22:19,787 INFO L93 Difference]: Finished difference Result 26792 states and 39012 transitions. [2024-10-14 15:22:19,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-14 15:22:19,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 190 [2024-10-14 15:22:19,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:22:19,870 INFO L225 Difference]: With dead ends: 26792 [2024-10-14 15:22:19,870 INFO L226 Difference]: Without dead ends: 16909 [2024-10-14 15:22:19,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=195, Invalid=507, Unknown=0, NotChecked=0, Total=702 [2024-10-14 15:22:19,912 INFO L432 NwaCegarLoop]: 955 mSDtfsCounter, 3060 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 4139 mSolverCounterSat, 1809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3195 SdHoareTripleChecker+Valid, 5080 SdHoareTripleChecker+Invalid, 5948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1809 IncrementalHoareTripleChecker+Valid, 4139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-10-14 15:22:19,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3195 Valid, 5080 Invalid, 5948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1809 Valid, 4139 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-10-14 15:22:19,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16909 states. [2024-10-14 15:22:21,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16909 to 14847. [2024-10-14 15:22:21,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14847 states, 10381 states have (on average 1.4022733840670456) internal successors, (14557), 10573 states have internal predecessors, (14557), 3266 states have call successors, (3266), 1092 states have call predecessors, (3266), 1199 states have return successors, (3512), 3285 states have call predecessors, (3512), 3263 states have call successors, (3512) [2024-10-14 15:22:21,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14847 states to 14847 states and 21335 transitions. [2024-10-14 15:22:21,339 INFO L78 Accepts]: Start accepts. Automaton has 14847 states and 21335 transitions. Word has length 190 [2024-10-14 15:22:21,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:22:21,339 INFO L471 AbstractCegarLoop]: Abstraction has 14847 states and 21335 transitions. [2024-10-14 15:22:21,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-10-14 15:22:21,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14847 states and 21335 transitions. [2024-10-14 15:22:21,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-14 15:22:21,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:22:21,360 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:22:21,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 15:22:21,360 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:22:21,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:22:21,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1570123160, now seen corresponding path program 1 times [2024-10-14 15:22:21,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:22:21,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482394286] [2024-10-14 15:22:21,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:22:21,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:22:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:22:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:22:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:22:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:22:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:22:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 15:22:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 15:22:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 15:22:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 15:22:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 15:22:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 15:22:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 15:22:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 15:22:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 15:22:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 15:22:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 15:22:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 15:22:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 15:22:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 15:22:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 15:22:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 15:22:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 15:22:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-14 15:22:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-14 15:22:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-14 15:22:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-14 15:22:21,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:21,948 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-10-14 15:22:21,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:22:21,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482394286] [2024-10-14 15:22:21,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482394286] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:22:21,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988691854] [2024-10-14 15:22:21,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:22:21,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:22:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:22:21,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:22:21,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 15:22:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:22,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 1843 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 15:22:22,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:22:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-10-14 15:22:22,789 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:22:22,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988691854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:22:22,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:22:22,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-10-14 15:22:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045703229] [2024-10-14 15:22:22,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:22:22,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:22:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:22:22,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:22:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-10-14 15:22:22,792 INFO L87 Difference]: Start difference. First operand 14847 states and 21335 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-10-14 15:22:27,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 15:22:27,005 INFO L93 Difference]: Finished difference Result 44949 states and 64629 transitions. [2024-10-14 15:22:27,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 15:22:27,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 193 [2024-10-14 15:22:27,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 15:22:27,168 INFO L225 Difference]: With dead ends: 44949 [2024-10-14 15:22:27,168 INFO L226 Difference]: Without dead ends: 30114 [2024-10-14 15:22:27,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-10-14 15:22:27,225 INFO L432 NwaCegarLoop]: 2099 mSDtfsCounter, 1142 mSDsluCounter, 5244 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1142 SdHoareTripleChecker+Valid, 7343 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 15:22:27,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1142 Valid, 7343 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 15:22:27,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30114 states. [2024-10-14 15:22:30,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30114 to 29915. [2024-10-14 15:22:30,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29915 states, 20842 states have (on average 1.399865655887151) internal successors, (29176), 21272 states have internal predecessors, (29176), 6689 states have call successors, (6689), 2168 states have call predecessors, (6689), 2383 states have return successors, (7220), 6682 states have call predecessors, (7220), 6686 states have call successors, (7220) [2024-10-14 15:22:30,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29915 states to 29915 states and 43085 transitions. [2024-10-14 15:22:30,408 INFO L78 Accepts]: Start accepts. Automaton has 29915 states and 43085 transitions. Word has length 193 [2024-10-14 15:22:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 15:22:30,409 INFO L471 AbstractCegarLoop]: Abstraction has 29915 states and 43085 transitions. [2024-10-14 15:22:30,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-10-14 15:22:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 29915 states and 43085 transitions. [2024-10-14 15:22:30,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-14 15:22:30,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 15:22:30,462 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 15:22:30,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-14 15:22:30,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 15:22:30,664 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 15:22:30,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 15:22:30,665 INFO L85 PathProgramCache]: Analyzing trace with hash 730699430, now seen corresponding path program 1 times [2024-10-14 15:22:30,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 15:22:30,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244139471] [2024-10-14 15:22:30,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:22:30,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 15:22:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 15:22:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 15:22:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 15:22:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 15:22:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-14 15:22:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 15:22:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 15:22:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 15:22:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 15:22:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 15:22:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 15:22:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 15:22:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 15:22:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 15:22:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 15:22:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 15:22:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 15:22:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-14 15:22:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 15:22:31,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 15:22:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-14 15:22:31,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-14 15:22:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-14 15:22:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-14 15:22:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-14 15:22:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-10-14 15:22:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-10-14 15:22:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-10-14 15:22:31,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 15:22:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244139471] [2024-10-14 15:22:31,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244139471] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 15:22:31,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140778563] [2024-10-14 15:22:31,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 15:22:31,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 15:22:31,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 15:22:31,769 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 15:22:31,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 15:22:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 15:22:32,558 INFO L255 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 15:22:32,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 15:22:32,601 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-10-14 15:22:32,602 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 15:22:32,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140778563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 15:22:32,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 15:22:32,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 11 [2024-10-14 15:22:32,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453447006] [2024-10-14 15:22:32,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 15:22:32,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 15:22:32,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 15:22:32,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 15:22:32,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-14 15:22:32,605 INFO L87 Difference]: Start difference. First operand 29915 states and 43085 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28)