./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../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 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 03:17:59,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 03:17:59,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-19 03:17:59,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 03:17:59,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 03:17:59,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 03:17:59,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 03:17:59,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 03:17:59,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 03:17:59,784 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 03:17:59,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 03:17:59,785 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 03:17:59,786 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 03:17:59,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 03:17:59,786 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 03:17:59,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 03:17:59,787 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 03:17:59,787 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 03:17:59,787 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 03:17:59,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 03:17:59,788 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 03:17:59,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 03:17:59,791 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 03:17:59,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 03:17:59,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 03:17:59,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 03:17:59,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 03:17:59,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 03:17:59,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 03:17:59,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:17:59,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 03:17:59,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 03:17:59,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 03:17:59,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 03:17:59,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 03:17:59,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 03:17:59,796 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 03:17:59,796 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 03:17:59,796 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 03:17:59,796 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f9870c0a11847528222b5446256dd4069d375e1dee3e428847b909838b4c1b [2024-11-19 03:18:00,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 03:18:00,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 03:18:00,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 03:18:00,124 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 03:18:00,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 03:18:00,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-19 03:18:01,452 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 03:18:01,799 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 03:18:01,800 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-19 03:18:01,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ec36962/0c7afc65f6fa4303a7c8d9cedfb8996c/FLAGb707f63cc [2024-11-19 03:18:01,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22ec36962/0c7afc65f6fa4303a7c8d9cedfb8996c [2024-11-19 03:18:01,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 03:18:01,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 03:18:01,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:01,863 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 03:18:01,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 03:18:01,870 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:01" (1/1) ... [2024-11-19 03:18:01,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514167c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:01, skipping insertion in model container [2024-11-19 03:18:01,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:01" (1/1) ... [2024-11-19 03:18:02,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 03:18:02,564 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-11-19 03:18:02,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:02,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 03:18:03,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5500-5501] [2024-11-19 03:18:03,054 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i[164521,164534] [2024-11-19 03:18:03,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 03:18:03,225 INFO L204 MainTranslator]: Completed translation [2024-11-19 03:18:03,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03 WrapperNode [2024-11-19 03:18:03,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 03:18:03,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:03,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 03:18:03,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 03:18:03,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,339 INFO L138 Inliner]: procedures = 156, calls = 736, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1722 [2024-11-19 03:18:03,340 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 03:18:03,341 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 03:18:03,341 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 03:18:03,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 03:18:03,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,362 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,521 INFO L175 MemorySlicer]: Split 256 memory accesses to 7 slices as follows [2, 44, 17, 3, 158, 6, 26]. 62 percent of accesses are in the largest equivalence class. The 34 initializations are split as follows [2, 0, 0, 0, 0, 6, 26]. The 114 writes are split as follows [0, 44, 17, 2, 51, 0, 0]. [2024-11-19 03:18:03,524 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 03:18:03,644 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 03:18:03,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 03:18:03,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 03:18:03,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (1/1) ... [2024-11-19 03:18:03,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 03:18:03,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:03,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 03:18:03,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 03:18:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2024-11-19 03:18:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2024-11-19 03:18:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2024-11-19 03:18:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-19 03:18:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-19 03:18:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2024-11-19 03:18:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2024-11-19 03:18:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-19 03:18:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-19 03:18:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-19 03:18:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-19 03:18:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-19 03:18:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-19 03:18:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-19 03:18:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-19 03:18:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-19 03:18:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-19 03:18:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 03:18:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_send_skb [2024-11-19 03:18:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_send_skb [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2024-11-19 03:18:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-19 03:18:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2024-11-19 03:18:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:18:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:18:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:18:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-19 03:18:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-19 03:18:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-19 03:18:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-19 03:18:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-19 03:18:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-19 03:18:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-19 03:18:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2024-11-19 03:18:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2024-11-19 03:18:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2024-11-19 03:18:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2024-11-19 03:18:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-19 03:18:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-19 03:18:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2024-11-19 03:18:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2024-11-19 03:18:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2024-11-19 03:18:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2024-11-19 03:18:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-19 03:18:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-19 03:18:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 03:18:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 03:18:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 03:18:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 03:18:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2024-11-19 03:18:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2024-11-19 03:18:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-19 03:18:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2024-11-19 03:18:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2024-11-19 03:18:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2024-11-19 03:18:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-19 03:18:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2024-11-19 03:18:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2024-11-19 03:18:03,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2024-11-19 03:18:03,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 03:18:03,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 03:18:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-19 03:18:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-19 03:18:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-19 03:18:03,800 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-19 03:18:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2024-11-19 03:18:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2024-11-19 03:18:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2024-11-19 03:18:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2024-11-19 03:18:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2024-11-19 03:18:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2024-11-19 03:18:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2024-11-19 03:18:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2024-11-19 03:18:03,803 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-19 03:18:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-19 03:18:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 03:18:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_17 [2024-11-19 03:18:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_17 [2024-11-19 03:18:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 03:18:03,804 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 03:18:03,804 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_m10x_input [2024-11-19 03:18:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_m10x_input [2024-11-19 03:18:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-19 03:18:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-19 03:18:03,805 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-19 03:18:03,805 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-19 03:18:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure set_value [2024-11-19 03:18:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure set_value [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure tiocm_to_gigaset [2024-11-19 03:18:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocm_to_gigaset [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-19 03:18:03,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-19 03:18:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-19 03:18:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-19 03:18:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-19 03:18:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2024-11-19 03:18:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2024-11-19 03:18:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 03:18:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 03:18:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_read_int_callback [2024-11-19 03:18:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_read_int_callback [2024-11-19 03:18:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2024-11-19 03:18:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2024-11-19 03:18:04,229 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 03:18:04,232 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 03:18:04,370 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-19 03:18:04,793 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-19 03:18:09,801 INFO L? ?]: Removed 873 outVars from TransFormulas that were not future-live. [2024-11-19 03:18:09,801 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 03:18:09,826 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 03:18:09,826 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 03:18:09,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:09 BoogieIcfgContainer [2024-11-19 03:18:09,827 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 03:18:09,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 03:18:09,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 03:18:09,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 03:18:09,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 03:18:01" (1/3) ... [2024-11-19 03:18:09,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535e3915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:09, skipping insertion in model container [2024-11-19 03:18:09,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:03" (2/3) ... [2024-11-19 03:18:09,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535e3915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 03:18:09, skipping insertion in model container [2024-11-19 03:18:09,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:09" (3/3) ... [2024-11-19 03:18:09,832 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--usb_gigaset.ko-entry_point.cil.out.i [2024-11-19 03:18:09,844 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 03:18:09,845 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 03:18:09,902 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 03:18:09,908 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;@754a91ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 03:18:09,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 03:18:09,914 INFO L276 IsEmpty]: Start isEmpty. Operand has 892 states, 635 states have (on average 1.373228346456693) internal successors, (872), 659 states have internal predecessors, (872), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-19 03:18:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-19 03:18:09,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:09,926 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:09,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:09,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:09,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1381869314, now seen corresponding path program 1 times [2024-11-19 03:18:09,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:09,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930404341] [2024-11-19 03:18:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:09,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:10,787 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:18:10,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:10,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930404341] [2024-11-19 03:18:10,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930404341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:10,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:10,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:10,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056541106] [2024-11-19 03:18:10,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:10,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:10,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:10,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:10,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:10,821 INFO L87 Difference]: Start difference. First operand has 892 states, 635 states have (on average 1.373228346456693) internal successors, (872), 659 states have internal predecessors, (872), 200 states have call successors, (200), 57 states have call predecessors, (200), 55 states have return successors, (194), 189 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 03:18:14,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:18:15,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:15,021 INFO L93 Difference]: Finished difference Result 2603 states and 3751 transitions. [2024-11-19 03:18:15,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:15,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-19 03:18:15,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:15,060 INFO L225 Difference]: With dead ends: 2603 [2024-11-19 03:18:15,060 INFO L226 Difference]: Without dead ends: 1694 [2024-11-19 03:18:15,073 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:15,077 INFO L432 NwaCegarLoop]: 1259 mSDtfsCounter, 1181 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:15,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 2472 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:18:15,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2024-11-19 03:18:15,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1694. [2024-11-19 03:18:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 1215 states have (on average 1.3530864197530865) internal successors, (1644), 1242 states have internal predecessors, (1644), 370 states have call successors, (370), 109 states have call predecessors, (370), 108 states have return successors, (365), 355 states have call predecessors, (365), 365 states have call successors, (365) [2024-11-19 03:18:15,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 2379 transitions. [2024-11-19 03:18:15,246 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 2379 transitions. Word has length 56 [2024-11-19 03:18:15,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:15,250 INFO L471 AbstractCegarLoop]: Abstraction has 1694 states and 2379 transitions. [2024-11-19 03:18:15,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 03:18:15,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 2379 transitions. [2024-11-19 03:18:15,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-19 03:18:15,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:15,258 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:15,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 03:18:15,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:15,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:15,260 INFO L85 PathProgramCache]: Analyzing trace with hash 310822282, now seen corresponding path program 1 times [2024-11-19 03:18:15,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:15,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143660911] [2024-11-19 03:18:15,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:15,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:18:15,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:15,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143660911] [2024-11-19 03:18:15,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143660911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:15,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:15,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:15,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543228483] [2024-11-19 03:18:15,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:15,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:15,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:15,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:15,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:15,933 INFO L87 Difference]: Start difference. First operand 1694 states and 2379 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:16,142 INFO L93 Difference]: Finished difference Result 5051 states and 7186 transitions. [2024-11-19 03:18:16,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:16,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59 [2024-11-19 03:18:16,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:16,161 INFO L225 Difference]: With dead ends: 5051 [2024-11-19 03:18:16,161 INFO L226 Difference]: Without dead ends: 3372 [2024-11-19 03:18:16,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:16,172 INFO L432 NwaCegarLoop]: 1293 mSDtfsCounter, 1212 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:16,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 2494 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:16,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2024-11-19 03:18:16,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 3362. [2024-11-19 03:18:16,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 2415 states have (on average 1.3523809523809525) internal successors, (3266), 2465 states have internal predecessors, (3266), 730 states have call successors, (730), 217 states have call predecessors, (730), 216 states have return successors, (761), 705 states have call predecessors, (761), 725 states have call successors, (761) [2024-11-19 03:18:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 4757 transitions. [2024-11-19 03:18:16,322 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 4757 transitions. Word has length 59 [2024-11-19 03:18:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:16,323 INFO L471 AbstractCegarLoop]: Abstraction has 3362 states and 4757 transitions. [2024-11-19 03:18:16,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 4757 transitions. [2024-11-19 03:18:16,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 03:18:16,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:16,327 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:16,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 03:18:16,327 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:16,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:16,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1045074158, now seen corresponding path program 1 times [2024-11-19 03:18:16,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:16,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045631674] [2024-11-19 03:18:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:16,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:17,031 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:18:17,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045631674] [2024-11-19 03:18:17,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045631674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:17,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:17,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:17,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427522230] [2024-11-19 03:18:17,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:17,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:17,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:17,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:17,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:17,033 INFO L87 Difference]: Start difference. First operand 3362 states and 4757 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:17,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:17,356 INFO L93 Difference]: Finished difference Result 10047 states and 14426 transitions. [2024-11-19 03:18:17,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:17,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 60 [2024-11-19 03:18:17,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:17,388 INFO L225 Difference]: With dead ends: 10047 [2024-11-19 03:18:17,389 INFO L226 Difference]: Without dead ends: 6700 [2024-11-19 03:18:17,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:17,401 INFO L432 NwaCegarLoop]: 1349 mSDtfsCounter, 1204 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:17,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 2550 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:17,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6700 states. [2024-11-19 03:18:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6700 to 6691. [2024-11-19 03:18:17,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 4808 states have (on average 1.3498336106489184) internal successors, (6490), 4904 states have internal predecessors, (6490), 1450 states have call successors, (1450), 433 states have call predecessors, (1450), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-11-19 03:18:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9537 transitions. [2024-11-19 03:18:17,692 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9537 transitions. Word has length 60 [2024-11-19 03:18:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:17,693 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 9537 transitions. [2024-11-19 03:18:17,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9537 transitions. [2024-11-19 03:18:17,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 03:18:17,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:17,695 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:17,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 03:18:17,695 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:17,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:17,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1962916595, now seen corresponding path program 1 times [2024-11-19 03:18:17,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:17,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822726388] [2024-11-19 03:18:17,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:17,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:18:18,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:18,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822726388] [2024-11-19 03:18:18,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822726388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:18,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:18,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:18,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125126680] [2024-11-19 03:18:18,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:18,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:18,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:18,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:18,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:18,025 INFO L87 Difference]: Start difference. First operand 6691 states and 9537 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:18,250 INFO L93 Difference]: Finished difference Result 6698 states and 9543 transitions. [2024-11-19 03:18:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:18,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 61 [2024-11-19 03:18:18,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:18,277 INFO L225 Difference]: With dead ends: 6698 [2024-11-19 03:18:18,278 INFO L226 Difference]: Without dead ends: 6695 [2024-11-19 03:18:18,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:18,281 INFO L432 NwaCegarLoop]: 1351 mSDtfsCounter, 1201 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:18,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 2551 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6695 states. [2024-11-19 03:18:18,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6695 to 6692. [2024-11-19 03:18:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 4809 states have (on average 1.349760865044708) internal successors, (6491), 4905 states have internal predecessors, (6491), 1450 states have call successors, (1450), 433 states have call predecessors, (1450), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-11-19 03:18:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 9538 transitions. [2024-11-19 03:18:18,533 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 9538 transitions. Word has length 61 [2024-11-19 03:18:18,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:18,533 INFO L471 AbstractCegarLoop]: Abstraction has 6692 states and 9538 transitions. [2024-11-19 03:18:18,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:18,534 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 9538 transitions. [2024-11-19 03:18:18,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-19 03:18:18,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:18,535 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:18,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 03:18:18,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:18,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:18,536 INFO L85 PathProgramCache]: Analyzing trace with hash -721344559, now seen corresponding path program 1 times [2024-11-19 03:18:18,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:18,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799947869] [2024-11-19 03:18:18,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:18,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:18:18,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:18,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799947869] [2024-11-19 03:18:18,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799947869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:18,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:18,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:18,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124020974] [2024-11-19 03:18:18,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:18,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:18,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:18,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:18,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:18,936 INFO L87 Difference]: Start difference. First operand 6692 states and 9538 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:19,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:19,125 INFO L93 Difference]: Finished difference Result 6694 states and 9539 transitions. [2024-11-19 03:18:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:19,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 62 [2024-11-19 03:18:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:19,164 INFO L225 Difference]: With dead ends: 6694 [2024-11-19 03:18:19,167 INFO L226 Difference]: Without dead ends: 6691 [2024-11-19 03:18:19,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:19,174 INFO L432 NwaCegarLoop]: 1230 mSDtfsCounter, 1196 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:19,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1230 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2024-11-19 03:18:19,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 6691. [2024-11-19 03:18:19,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6691 states, 4809 states have (on average 1.3495529216053233) internal successors, (6490), 4904 states have internal predecessors, (6490), 1449 states have call successors, (1449), 433 states have call predecessors, (1449), 432 states have return successors, (1597), 1405 states have call predecessors, (1597), 1445 states have call successors, (1597) [2024-11-19 03:18:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6691 states to 6691 states and 9536 transitions. [2024-11-19 03:18:19,532 INFO L78 Accepts]: Start accepts. Automaton has 6691 states and 9536 transitions. Word has length 62 [2024-11-19 03:18:19,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:19,533 INFO L471 AbstractCegarLoop]: Abstraction has 6691 states and 9536 transitions. [2024-11-19 03:18:19,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 6691 states and 9536 transitions. [2024-11-19 03:18:19,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-19 03:18:19,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:19,536 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:19,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 03:18:19,536 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:19,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:19,537 INFO L85 PathProgramCache]: Analyzing trace with hash -887312240, now seen corresponding path program 1 times [2024-11-19 03:18:19,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:19,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181898979] [2024-11-19 03:18:19,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:19,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-19 03:18:19,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181898979] [2024-11-19 03:18:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181898979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:19,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:19,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229647088] [2024-11-19 03:18:19,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:19,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:19,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:19,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:19,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:19,876 INFO L87 Difference]: Start difference. First operand 6691 states and 9536 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:20,078 INFO L93 Difference]: Finished difference Result 6693 states and 9537 transitions. [2024-11-19 03:18:20,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:20,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 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 63 [2024-11-19 03:18:20,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:20,127 INFO L225 Difference]: With dead ends: 6693 [2024-11-19 03:18:20,128 INFO L226 Difference]: Without dead ends: 6671 [2024-11-19 03:18:20,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:20,134 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 1193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:20,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:20,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2024-11-19 03:18:20,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 6671. [2024-11-19 03:18:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6671 states, 4792 states have (on average 1.3495409015025042) internal successors, (6467), 4886 states have internal predecessors, (6467), 1447 states have call successors, (1447), 432 states have call predecessors, (1447), 431 states have return successors, (1596), 1404 states have call predecessors, (1596), 1444 states have call successors, (1596) [2024-11-19 03:18:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6671 states to 6671 states and 9510 transitions. [2024-11-19 03:18:20,491 INFO L78 Accepts]: Start accepts. Automaton has 6671 states and 9510 transitions. Word has length 63 [2024-11-19 03:18:20,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:20,492 INFO L471 AbstractCegarLoop]: Abstraction has 6671 states and 9510 transitions. [2024-11-19 03:18:20,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-19 03:18:20,493 INFO L276 IsEmpty]: Start isEmpty. Operand 6671 states and 9510 transitions. [2024-11-19 03:18:20,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-19 03:18:20,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:20,505 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:20,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 03:18:20,505 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:20,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1651717291, now seen corresponding path program 1 times [2024-11-19 03:18:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:20,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864525651] [2024-11-19 03:18:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-19 03:18:20,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:20,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864525651] [2024-11-19 03:18:20,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864525651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:20,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:20,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876668908] [2024-11-19 03:18:20,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:20,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:20,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:20,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:20,933 INFO L87 Difference]: Start difference. First operand 6671 states and 9510 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-19 03:18:21,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:21,525 INFO L93 Difference]: Finished difference Result 17082 states and 24187 transitions. [2024-11-19 03:18:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:21,525 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 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 183 [2024-11-19 03:18:21,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:21,572 INFO L225 Difference]: With dead ends: 17082 [2024-11-19 03:18:21,573 INFO L226 Difference]: Without dead ends: 10426 [2024-11-19 03:18:21,602 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:21,603 INFO L432 NwaCegarLoop]: 1288 mSDtfsCounter, 696 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:21,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 2467 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10426 states. [2024-11-19 03:18:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10426 to 10391. [2024-11-19 03:18:22,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10391 states, 7572 states have (on average 1.3608029582673007) internal successors, (10304), 7686 states have internal predecessors, (10304), 2099 states have call successors, (2099), 720 states have call predecessors, (2099), 719 states have return successors, (2248), 2056 states have call predecessors, (2248), 2096 states have call successors, (2248) [2024-11-19 03:18:22,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10391 states to 10391 states and 14651 transitions. [2024-11-19 03:18:22,125 INFO L78 Accepts]: Start accepts. Automaton has 10391 states and 14651 transitions. Word has length 183 [2024-11-19 03:18:22,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:22,125 INFO L471 AbstractCegarLoop]: Abstraction has 10391 states and 14651 transitions. [2024-11-19 03:18:22,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-19 03:18:22,126 INFO L276 IsEmpty]: Start isEmpty. Operand 10391 states and 14651 transitions. [2024-11-19 03:18:22,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-19 03:18:22,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:22,139 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, 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, 1, 1] [2024-11-19 03:18:22,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 03:18:22,140 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:22,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:22,140 INFO L85 PathProgramCache]: Analyzing trace with hash 961872017, now seen corresponding path program 1 times [2024-11-19 03:18:22,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:22,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640408120] [2024-11-19 03:18:22,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:22,653 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-19 03:18:22,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:22,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640408120] [2024-11-19 03:18:22,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640408120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:22,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:22,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 03:18:22,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965429217] [2024-11-19 03:18:22,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:22,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 03:18:22,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:22,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 03:18:22,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 03:18:22,656 INFO L87 Difference]: Start difference. First operand 10391 states and 14651 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-19 03:18:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:23,111 INFO L93 Difference]: Finished difference Result 20788 states and 29307 transitions. [2024-11-19 03:18:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 03:18:23,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 2 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 216 [2024-11-19 03:18:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:23,153 INFO L225 Difference]: With dead ends: 20788 [2024-11-19 03:18:23,153 INFO L226 Difference]: Without dead ends: 10412 [2024-11-19 03:18:23,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 03:18:23,187 INFO L432 NwaCegarLoop]: 1237 mSDtfsCounter, 1221 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:23,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 2480 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:18:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10412 states. [2024-11-19 03:18:23,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10412 to 10399. [2024-11-19 03:18:23,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10399 states, 7580 states have (on average 1.3596306068601582) internal successors, (10306), 7694 states have internal predecessors, (10306), 2099 states have call successors, (2099), 720 states have call predecessors, (2099), 719 states have return successors, (2248), 2056 states have call predecessors, (2248), 2096 states have call successors, (2248) [2024-11-19 03:18:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10399 states to 10399 states and 14653 transitions. [2024-11-19 03:18:23,702 INFO L78 Accepts]: Start accepts. Automaton has 10399 states and 14653 transitions. Word has length 216 [2024-11-19 03:18:23,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:23,703 INFO L471 AbstractCegarLoop]: Abstraction has 10399 states and 14653 transitions. [2024-11-19 03:18:23,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-19 03:18:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 10399 states and 14653 transitions. [2024-11-19 03:18:23,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-19 03:18:23,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:23,717 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, 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] [2024-11-19 03:18:23,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 03:18:23,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:23,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:23,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1200174223, now seen corresponding path program 1 times [2024-11-19 03:18:23,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:23,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390608263] [2024-11-19 03:18:23,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:23,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-19 03:18:24,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:24,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390608263] [2024-11-19 03:18:24,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390608263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:24,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:24,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860839637] [2024-11-19 03:18:24,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:24,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:24,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:24,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:24,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:24,144 INFO L87 Difference]: Start difference. First operand 10399 states and 14653 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-19 03:18:28,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:18:29,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:29,186 INFO L93 Difference]: Finished difference Result 26023 states and 36640 transitions. [2024-11-19 03:18:29,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 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 218 [2024-11-19 03:18:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:29,354 INFO L225 Difference]: With dead ends: 26023 [2024-11-19 03:18:29,355 INFO L226 Difference]: Without dead ends: 15639 [2024-11-19 03:18:29,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:29,380 INFO L432 NwaCegarLoop]: 2350 mSDtfsCounter, 1178 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 3548 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:29,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1178 Valid, 3548 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:18:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15639 states. [2024-11-19 03:18:30,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15639 to 15579. [2024-11-19 03:18:30,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15579 states, 11344 states have (on average 1.3601904090267982) internal successors, (15430), 11518 states have internal predecessors, (15430), 3143 states have call successors, (3143), 1092 states have call predecessors, (3143), 1091 states have return successors, (3368), 3072 states have call predecessors, (3368), 3140 states have call successors, (3368) [2024-11-19 03:18:30,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15579 states to 15579 states and 21941 transitions. [2024-11-19 03:18:30,137 INFO L78 Accepts]: Start accepts. Automaton has 15579 states and 21941 transitions. Word has length 218 [2024-11-19 03:18:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:30,138 INFO L471 AbstractCegarLoop]: Abstraction has 15579 states and 21941 transitions. [2024-11-19 03:18:30,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-19 03:18:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 15579 states and 21941 transitions. [2024-11-19 03:18:30,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-19 03:18:30,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:30,165 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, 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, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:30,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 03:18:30,165 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:30,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:30,166 INFO L85 PathProgramCache]: Analyzing trace with hash -714998260, now seen corresponding path program 1 times [2024-11-19 03:18:30,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:30,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335438161] [2024-11-19 03:18:30,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:30,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:30,571 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-19 03:18:30,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:30,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335438161] [2024-11-19 03:18:30,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335438161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:30,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 03:18:30,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 03:18:30,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669301089] [2024-11-19 03:18:30,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:30,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 03:18:30,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:30,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 03:18:30,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:30,573 INFO L87 Difference]: Start difference. First operand 15579 states and 21941 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-19 03:18:34,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:18:35,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:35,046 INFO L93 Difference]: Finished difference Result 26654 states and 37475 transitions. [2024-11-19 03:18:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 03:18:35,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2024-11-19 03:18:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:35,100 INFO L225 Difference]: With dead ends: 26654 [2024-11-19 03:18:35,100 INFO L226 Difference]: Without dead ends: 11088 [2024-11-19 03:18:35,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 03:18:35,143 INFO L432 NwaCegarLoop]: 1236 mSDtfsCounter, 11 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:35,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2457 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 03:18:35,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11088 states. [2024-11-19 03:18:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11088 to 11039. [2024-11-19 03:18:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11039 states, 8045 states have (on average 1.3584835301429459) internal successors, (10929), 8166 states have internal predecessors, (10929), 2207 states have call successors, (2207), 787 states have call predecessors, (2207), 786 states have return successors, (2356), 2159 states have call predecessors, (2356), 2204 states have call successors, (2356) [2024-11-19 03:18:36,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11039 states to 11039 states and 15492 transitions. [2024-11-19 03:18:36,051 INFO L78 Accepts]: Start accepts. Automaton has 11039 states and 15492 transitions. Word has length 222 [2024-11-19 03:18:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:36,052 INFO L471 AbstractCegarLoop]: Abstraction has 11039 states and 15492 transitions. [2024-11-19 03:18:36,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-19 03:18:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 11039 states and 15492 transitions. [2024-11-19 03:18:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-19 03:18:36,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:36,065 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:36,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 03:18:36,065 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:36,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash -4683446, now seen corresponding path program 1 times [2024-11-19 03:18:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:36,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598836034] [2024-11-19 03:18:36,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:36,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:36,591 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-19 03:18:36,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:36,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598836034] [2024-11-19 03:18:36,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598836034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:18:36,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6310304] [2024-11-19 03:18:36,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:36,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:18:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:36,599 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) [2024-11-19 03:18:36,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 03:18:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:37,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 2285 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 03:18:37,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:18:37,646 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-19 03:18:37,646 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:18:37,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6310304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:18:37,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:18:37,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-19 03:18:37,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301454466] [2024-11-19 03:18:37,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:18:37,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 03:18:37,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:37,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 03:18:37,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 03:18:37,648 INFO L87 Difference]: Start difference. First operand 11039 states and 15492 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2024-11-19 03:18:41,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:18:43,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:18:43,182 INFO L93 Difference]: Finished difference Result 32491 states and 45646 transitions. [2024-11-19 03:18:43,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 03:18:43,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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 226 [2024-11-19 03:18:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:18:43,313 INFO L225 Difference]: With dead ends: 32491 [2024-11-19 03:18:43,314 INFO L226 Difference]: Without dead ends: 21909 [2024-11-19 03:18:43,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 03:18:43,363 INFO L432 NwaCegarLoop]: 2371 mSDtfsCounter, 1221 mSDsluCounter, 5936 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1221 SdHoareTripleChecker+Valid, 8307 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-19 03:18:43,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1221 Valid, 8307 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 54 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-19 03:18:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21909 states. [2024-11-19 03:18:44,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21909 to 21723. [2024-11-19 03:18:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21723 states, 15761 states have (on average 1.3569570458727238) internal successors, (21387), 16030 states have internal predecessors, (21387), 4435 states have call successors, (4435), 1527 states have call predecessors, (4435), 1526 states have return successors, (4760), 4311 states have call predecessors, (4760), 4432 states have call successors, (4760) [2024-11-19 03:18:44,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21723 states to 21723 states and 30582 transitions. [2024-11-19 03:18:44,981 INFO L78 Accepts]: Start accepts. Automaton has 21723 states and 30582 transitions. Word has length 226 [2024-11-19 03:18:44,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:18:44,986 INFO L471 AbstractCegarLoop]: Abstraction has 21723 states and 30582 transitions. [2024-11-19 03:18:44,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 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) [2024-11-19 03:18:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 21723 states and 30582 transitions. [2024-11-19 03:18:45,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-19 03:18:45,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:18:45,039 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:18:45,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 03:18:45,240 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,SelfDestructingSolverStorable10 [2024-11-19 03:18:45,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:18:45,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:18:45,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1810121780, now seen corresponding path program 1 times [2024-11-19 03:18:45,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:18:45,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437407315] [2024-11-19 03:18:45,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:45,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:18:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:46,417 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-19 03:18:46,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:18:46,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437407315] [2024-11-19 03:18:46,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437407315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:18:46,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563560180] [2024-11-19 03:18:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:18:46,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:18:46,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:18:46,421 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) [2024-11-19 03:18:46,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 03:18:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:18:47,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 65 conjuncts are in the unsatisfiable core [2024-11-19 03:18:47,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:18:47,873 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-19 03:18:47,874 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 03:18:48,405 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-19 03:18:48,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563560180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 03:18:48,406 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 03:18:48,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 23 [2024-11-19 03:18:48,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025489441] [2024-11-19 03:18:48,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 03:18:48,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-19 03:18:48,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:18:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-19 03:18:48,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2024-11-19 03:18:48,408 INFO L87 Difference]: Start difference. First operand 21723 states and 30582 transitions. Second operand has 23 states, 23 states have (on average 12.608695652173912) internal successors, (290), 20 states have internal predecessors, (290), 8 states have call successors, (67), 5 states have call predecessors, (67), 6 states have return successors, (68), 11 states have call predecessors, (68), 8 states have call successors, (68) [2024-11-19 03:18:52,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-19 03:19:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:13,583 INFO L93 Difference]: Finished difference Result 54561 states and 76921 transitions. [2024-11-19 03:19:13,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-19 03:19:13,590 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 12.608695652173912) internal successors, (290), 20 states have internal predecessors, (290), 8 states have call successors, (67), 5 states have call predecessors, (67), 6 states have return successors, (68), 11 states have call predecessors, (68), 8 states have call successors, (68) Word has length 226 [2024-11-19 03:19:13,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:13,766 INFO L225 Difference]: With dead ends: 54561 [2024-11-19 03:19:13,767 INFO L226 Difference]: Without dead ends: 33247 [2024-11-19 03:19:13,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=339, Invalid=2741, Unknown=0, NotChecked=0, Total=3080 [2024-11-19 03:19:13,828 INFO L432 NwaCegarLoop]: 1217 mSDtfsCounter, 7722 mSDsluCounter, 18654 mSDsCounter, 0 mSdLazyCounter, 14989 mSolverCounterSat, 2855 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8050 SdHoareTripleChecker+Valid, 19871 SdHoareTripleChecker+Invalid, 17845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2855 IncrementalHoareTripleChecker+Valid, 14989 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:13,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8050 Valid, 19871 Invalid, 17845 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2855 Valid, 14989 Invalid, 1 Unknown, 0 Unchecked, 22.0s Time] [2024-11-19 03:19:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33247 states. [2024-11-19 03:19:15,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33247 to 32870. [2024-11-19 03:19:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32870 states, 23823 states have (on average 1.3528103093648995) internal successors, (32228), 24269 states have internal predecessors, (32228), 6657 states have call successors, (6657), 2273 states have call predecessors, (6657), 2389 states have return successors, (7201), 6545 states have call predecessors, (7201), 6654 states have call successors, (7201) [2024-11-19 03:19:15,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32870 states to 32870 states and 46086 transitions. [2024-11-19 03:19:15,941 INFO L78 Accepts]: Start accepts. Automaton has 32870 states and 46086 transitions. Word has length 226 [2024-11-19 03:19:15,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:15,941 INFO L471 AbstractCegarLoop]: Abstraction has 32870 states and 46086 transitions. [2024-11-19 03:19:15,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.608695652173912) internal successors, (290), 20 states have internal predecessors, (290), 8 states have call successors, (67), 5 states have call predecessors, (67), 6 states have return successors, (68), 11 states have call predecessors, (68), 8 states have call successors, (68) [2024-11-19 03:19:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 32870 states and 46086 transitions. [2024-11-19 03:19:15,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-19 03:19:15,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:15,997 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:16,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 03:19:16,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 03:19:16,199 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:16,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:16,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1937232070, now seen corresponding path program 1 times [2024-11-19 03:19:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:16,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81415900] [2024-11-19 03:19:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:16,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:17,555 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-19 03:19:17,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 03:19:17,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81415900] [2024-11-19 03:19:17,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81415900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 03:19:17,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739768630] [2024-11-19 03:19:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 03:19:17,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:19:17,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 03:19:17,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 03:19:17,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 03:19:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 03:19:18,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 2332 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 03:19:18,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 03:19:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-19 03:19:18,658 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 03:19:18,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739768630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 03:19:18,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 03:19:18,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2024-11-19 03:19:18,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264008633] [2024-11-19 03:19:18,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 03:19:18,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 03:19:18,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 03:19:18,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 03:19:18,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:19:18,660 INFO L87 Difference]: Start difference. First operand 32870 states and 46086 transitions. Second operand has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-19 03:19:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 03:19:20,292 INFO L93 Difference]: Finished difference Result 65403 states and 91703 transitions. [2024-11-19 03:19:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 03:19:20,293 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 238 [2024-11-19 03:19:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 03:19:20,467 INFO L225 Difference]: With dead ends: 65403 [2024-11-19 03:19:20,467 INFO L226 Difference]: Without dead ends: 32990 [2024-11-19 03:19:20,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 03:19:20,555 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 0 mSDsluCounter, 4880 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 03:19:20,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6104 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 03:19:20,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32990 states. [2024-11-19 03:19:22,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32990 to 32906. [2024-11-19 03:19:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32906 states, 23859 states have (on average 1.3522779663858502) internal successors, (32264), 24293 states have internal predecessors, (32264), 6657 states have call successors, (6657), 2273 states have call predecessors, (6657), 2389 states have return successors, (7201), 6557 states have call predecessors, (7201), 6654 states have call successors, (7201) [2024-11-19 03:19:22,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32906 states to 32906 states and 46122 transitions. [2024-11-19 03:19:22,950 INFO L78 Accepts]: Start accepts. Automaton has 32906 states and 46122 transitions. Word has length 238 [2024-11-19 03:19:22,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 03:19:22,951 INFO L471 AbstractCegarLoop]: Abstraction has 32906 states and 46122 transitions. [2024-11-19 03:19:22,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.0) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-19 03:19:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 32906 states and 46122 transitions. [2024-11-19 03:19:22,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-19 03:19:22,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 03:19:22,968 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 03:19:22,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 03:19:23,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 03:19:23,174 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 03:19:23,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 03:19:23,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1351797097, now seen corresponding path program 2 times [2024-11-19 03:19:23,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 03:19:23,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960312229] [2024-11-19 03:19:23,175 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 03:19:23,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 03:19:23,581 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 03:19:23,581 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat