./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 15:17:21,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 15:17:21,535 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 15:17:21,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 15:17:21,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 15:17:21,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 15:17:21,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 15:17:21,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 15:17:21,591 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 15:17:21,591 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 15:17:21,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 15:17:21,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 15:17:21,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 15:17:21,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 15:17:21,593 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 15:17:21,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 15:17:21,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 15:17:21,597 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 15:17:21,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 15:17:21,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 15:17:21,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 15:17:21,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 15:17:21,602 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 15:17:21,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 15:17:21,603 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 15:17:21,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 15:17:21,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 15:17:21,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 15:17:21,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 15:17:21,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 15:17:21,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 15:17:21,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 15:17:21,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 15:17:21,604 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 15:17:21,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 15:17:21,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 15:17:21,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 15:17:21,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 15:17:21,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 15:17:21,610 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b154baf348652a9aadd484f41053a90df6581eb3d7346fd488d4cc05040e74b [2024-10-11 15:17:21,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 15:17:21,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 15:17:21,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 15:17:21,964 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 15:17:21,964 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 15:17:21,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2024-10-11 15:17:23,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 15:17:23,600 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 15:17:23,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2024-10-11 15:17:23,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c04051ad5/0ca465ddceda4c4bacd251dfddf2fa2c/FLAGbcc1f4382 [2024-10-11 15:17:23,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c04051ad5/0ca465ddceda4c4bacd251dfddf2fa2c [2024-10-11 15:17:23,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 15:17:23,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 15:17:23,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 15:17:23,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 15:17:23,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 15:17:23,657 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:17:23" (1/1) ... [2024-10-11 15:17:23,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499d3983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:23, skipping insertion in model container [2024-10-11 15:17:23,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:17:23" (1/1) ... [2024-10-11 15:17:23,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 15:17:24,467 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2024-10-11 15:17:24,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 15:17:24,535 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 15:17:24,584 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; incl %0": "+m" (v->counter)); [2827] [2024-10-11 15:17:24,586 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [2834-2835] [2024-10-11 15:17:24,714 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i[119285,119298] [2024-10-11 15:17:24,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 15:17:24,770 INFO L204 MainTranslator]: Completed translation [2024-10-11 15:17:24,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24 WrapperNode [2024-10-11 15:17:24,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 15:17:24,772 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 15:17:24,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 15:17:24,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 15:17:24,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:24,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:24,897 INFO L138 Inliner]: procedures = 144, calls = 819, calls flagged for inlining = 50, calls inlined = 42, statements flattened = 1725 [2024-10-11 15:17:24,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 15:17:24,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 15:17:24,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 15:17:24,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 15:17:24,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:24,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:24,931 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,017 INFO L175 MemorySlicer]: Split 398 memory accesses to 20 slices as follows [2, 1, 5, 5, 11, 2, 1, 22, 6, 218, 6, 11, 3, 1, 31, 13, 1, 29, 3, 27]. 55 percent of accesses are in the largest equivalence class. The 154 initializations are split as follows [2, 0, 5, 0, 11, 0, 1, 22, 0, 0, 6, 11, 3, 0, 24, 13, 0, 29, 0, 27]. The 152 writes are split as follows [0, 0, 0, 1, 0, 2, 0, 0, 5, 141, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0]. [2024-10-11 15:17:25,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,067 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 15:17:25,115 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 15:17:25,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 15:17:25,115 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 15:17:25,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (1/1) ... [2024-10-11 15:17:25,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 15:17:25,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:17:25,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 15:17:25,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 15:17:25,251 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-10-11 15:17:25,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-10-11 15:17:25,252 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-10-11 15:17:25,252 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-10-11 15:17:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-10-11 15:17:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-10-11 15:17:25,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pt_mutex [2024-10-11 15:17:25,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pt_mutex [2024-10-11 15:17:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-10-11 15:17:25,254 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-10-11 15:17:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 15:17:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 15:17:25,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-11 15:17:25,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-11 15:17:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-11 15:17:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-11 15:17:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-11 15:17:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-11 15:17:25,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2024-10-11 15:17:25,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-10-11 15:17:25,257 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-10-11 15:17:25,257 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2024-10-11 15:17:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2024-10-11 15:17:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-11 15:17:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-11 15:17:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2024-10-11 15:17:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2024-10-11 15:17:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2024-10-11 15:17:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2024-10-11 15:17:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2024-10-11 15:17:25,258 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2024-10-11 15:17:25,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-11 15:17:25,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-10-11 15:17:25,260 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-11 15:17:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-11 15:17:25,261 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2024-10-11 15:17:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2024-10-11 15:17:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-11 15:17:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-11 15:17:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-11 15:17:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-11 15:17:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2024-10-11 15:17:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2024-10-11 15:17:25,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 15:17:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2024-10-11 15:17:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2024-10-11 15:17:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pt_mutex [2024-10-11 15:17:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pt_mutex [2024-10-11 15:17:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-11 15:17:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-11 15:17:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2024-10-11 15:17:25,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2024-10-11 15:17:25,263 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-10-11 15:17:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-10-11 15:17:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 15:17:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_17 [2024-10-11 15:17:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_17 [2024-10-11 15:17:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-10-11 15:17:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-10-11 15:17:25,264 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-10-11 15:17:25,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-10-11 15:17:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 15:17:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 15:17:25,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-11 15:17:25,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 15:17:25,267 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-10-11 15:17:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-10-11 15:17:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2024-10-11 15:17:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2024-10-11 15:17:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 15:17:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 15:17:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 15:17:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 15:17:25,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 15:17:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 15:17:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-11 15:17:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-11 15:17:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-11 15:17:25,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-11 15:17:25,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-10-11 15:17:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-10-11 15:17:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-10-11 15:17:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2024-10-11 15:17:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2024-10-11 15:17:25,271 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2024-10-11 15:17:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-10-11 15:17:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-10-11 15:17:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-11 15:17:25,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-10-11 15:17:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-10-11 15:17:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-10-11 15:17:25,273 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-10-11 15:17:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-10-11 15:17:25,274 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-11 15:17:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-11 15:17:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2024-10-11 15:17:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2024-10-11 15:17:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-10-11 15:17:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-10-11 15:17:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2024-10-11 15:17:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2024-10-11 15:17:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2024-10-11 15:17:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2024-10-11 15:17:25,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 15:17:25,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2024-10-11 15:17:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2024-10-11 15:17:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2024-10-11 15:17:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2024-10-11 15:17:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-10-11 15:17:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-10-11 15:17:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 15:17:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 15:17:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-10-11 15:17:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-10-11 15:17:25,641 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 15:17:25,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 15:17:33,899 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-10-11 15:17:33,900 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 15:17:33,987 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 15:17:33,987 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-11 15:17:33,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:17:33 BoogieIcfgContainer [2024-10-11 15:17:33,987 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 15:17:33,989 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 15:17:33,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 15:17:33,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 15:17:33,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:17:23" (1/3) ... [2024-10-11 15:17:33,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a132b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:17:33, skipping insertion in model container [2024-10-11 15:17:33,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:17:24" (2/3) ... [2024-10-11 15:17:33,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a132b0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:17:33, skipping insertion in model container [2024-10-11 15:17:33,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:17:33" (3/3) ... [2024-10-11 15:17:33,994 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pt.ko-main.cil.out.i [2024-10-11 15:17:34,007 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 15:17:34,007 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 15:17:34,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 15:17:34,072 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;@7da022a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 15:17:34,072 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 15:17:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 794 states, 561 states have (on average 1.4420677361853833) internal successors, (809), 582 states have internal predecessors, (809), 191 states have call successors, (191), 44 states have call predecessors, (191), 44 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-10-11 15:17:34,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 15:17:34,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:34,087 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 15:17:34,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:34,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:34,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1032908081, now seen corresponding path program 1 times [2024-10-11 15:17:34,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:34,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960031853] [2024-10-11 15:17:34,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:34,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:34,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 15:17:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 15:17:34,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:34,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960031853] [2024-10-11 15:17:34,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960031853] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:34,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:17:34,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 15:17:34,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906002683] [2024-10-11 15:17:34,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:34,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:34,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:34,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:34,463 INFO L87 Difference]: Start difference. First operand has 794 states, 561 states have (on average 1.4420677361853833) internal successors, (809), 582 states have internal predecessors, (809), 191 states have call successors, (191), 44 states have call predecessors, (191), 44 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:35,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:35,072 INFO L93 Difference]: Finished difference Result 1937 states and 2962 transitions. [2024-10-11 15:17:35,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:35,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-10-11 15:17:35,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:35,102 INFO L225 Difference]: With dead ends: 1937 [2024-10-11 15:17:35,102 INFO L226 Difference]: Without dead ends: 1140 [2024-10-11 15:17:35,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:35,120 INFO L432 NwaCegarLoop]: 1389 mSDtfsCounter, 526 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 2447 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:35,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 2447 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 15:17:35,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2024-10-11 15:17:35,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1112. [2024-10-11 15:17:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 778 states have (on average 1.417737789203085) internal successors, (1103), 799 states have internal predecessors, (1103), 266 states have call successors, (266), 68 states have call predecessors, (266), 67 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2024-10-11 15:17:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1629 transitions. [2024-10-11 15:17:35,258 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1629 transitions. Word has length 16 [2024-10-11 15:17:35,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:35,259 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1629 transitions. [2024-10-11 15:17:35,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:35,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1629 transitions. [2024-10-11 15:17:35,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 15:17:35,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:35,262 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 15:17:35,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 15:17:35,263 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:35,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:35,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1254437233, now seen corresponding path program 1 times [2024-10-11 15:17:35,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:35,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711184534] [2024-10-11 15:17:35,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:35,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 15:17:35,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:35,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711184534] [2024-10-11 15:17:35,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711184534] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:35,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:17:35,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 15:17:35,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705827950] [2024-10-11 15:17:35,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:35,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:35,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:35,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:35,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:35,378 INFO L87 Difference]: Start difference. First operand 1112 states and 1629 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 15:17:35,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:35,609 INFO L93 Difference]: Finished difference Result 2223 states and 3257 transitions. [2024-10-11 15:17:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:35,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-11 15:17:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:35,616 INFO L225 Difference]: With dead ends: 2223 [2024-10-11 15:17:35,617 INFO L226 Difference]: Without dead ends: 1112 [2024-10-11 15:17:35,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:35,622 INFO L432 NwaCegarLoop]: 1083 mSDtfsCounter, 1141 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:35,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 1083 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 15:17:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-10-11 15:17:35,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2024-10-11 15:17:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 778 states have (on average 1.4151670951156812) internal successors, (1101), 799 states have internal predecessors, (1101), 266 states have call successors, (266), 68 states have call predecessors, (266), 67 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2024-10-11 15:17:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1627 transitions. [2024-10-11 15:17:35,705 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1627 transitions. Word has length 16 [2024-10-11 15:17:35,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:35,706 INFO L471 AbstractCegarLoop]: Abstraction has 1112 states and 1627 transitions. [2024-10-11 15:17:35,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 15:17:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1627 transitions. [2024-10-11 15:17:35,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 15:17:35,708 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:35,709 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 15:17:35,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 15:17:35,709 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:35,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:35,712 INFO L85 PathProgramCache]: Analyzing trace with hash -469304842, now seen corresponding path program 1 times [2024-10-11 15:17:35,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:35,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245920933] [2024-10-11 15:17:35,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:35,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:35,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 15:17:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 15:17:35,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245920933] [2024-10-11 15:17:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245920933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:17:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 15:17:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033671011] [2024-10-11 15:17:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:35,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 15:17:35,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 15:17:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 15:17:35,848 INFO L87 Difference]: Start difference. First operand 1112 states and 1627 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:42,381 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 [] [2024-10-11 15:17:46,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:17:50,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:17:54,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:54,248 INFO L93 Difference]: Finished difference Result 2860 states and 4191 transitions. [2024-10-11 15:17:54,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 15:17:54,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-11 15:17:54,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:54,257 INFO L225 Difference]: With dead ends: 2860 [2024-10-11 15:17:54,258 INFO L226 Difference]: Without dead ends: 1749 [2024-10-11 15:17:54,262 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 [2024-10-11 15:17:54,263 INFO L432 NwaCegarLoop]: 761 mSDtfsCounter, 1354 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 344 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 2454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:54,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1558 Invalid, 2454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 2107 Invalid, 3 Unknown, 0 Unchecked, 18.2s Time] [2024-10-11 15:17:54,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-10-11 15:17:54,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1745. [2024-10-11 15:17:54,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1745 states, 1230 states have (on average 1.4178861788617887) internal successors, (1744), 1259 states have internal predecessors, (1744), 409 states have call successors, (409), 106 states have call predecessors, (409), 105 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2024-10-11 15:17:54,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1745 states to 1745 states and 2556 transitions. [2024-10-11 15:17:54,323 INFO L78 Accepts]: Start accepts. Automaton has 1745 states and 2556 transitions. Word has length 17 [2024-10-11 15:17:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:54,324 INFO L471 AbstractCegarLoop]: Abstraction has 1745 states and 2556 transitions. [2024-10-11 15:17:54,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1745 states and 2556 transitions. [2024-10-11 15:17:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 15:17:54,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:54,326 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 15:17:54,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 15:17:54,326 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:54,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:54,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1003401782, now seen corresponding path program 1 times [2024-10-11 15:17:54,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:54,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229144029] [2024-10-11 15:17:54,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:54,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:54,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:54,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 15:17:54,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:54,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229144029] [2024-10-11 15:17:54,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229144029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:54,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:17:54,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 15:17:54,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59965710] [2024-10-11 15:17:54,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:54,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:54,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:54,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:54,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:54,422 INFO L87 Difference]: Start difference. First operand 1745 states and 2556 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:54,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:54,664 INFO L93 Difference]: Finished difference Result 3513 states and 5151 transitions. [2024-10-11 15:17:54,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:54,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-10-11 15:17:54,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:54,674 INFO L225 Difference]: With dead ends: 3513 [2024-10-11 15:17:54,674 INFO L226 Difference]: Without dead ends: 1769 [2024-10-11 15:17:54,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:54,681 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 12 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:54,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2158 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 15:17:54,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-10-11 15:17:54,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1747. [2024-10-11 15:17:54,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1747 states, 1232 states have (on average 1.4172077922077921) internal successors, (1746), 1261 states have internal predecessors, (1746), 409 states have call successors, (409), 106 states have call predecessors, (409), 105 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2024-10-11 15:17:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1747 states to 1747 states and 2558 transitions. [2024-10-11 15:17:54,776 INFO L78 Accepts]: Start accepts. Automaton has 1747 states and 2558 transitions. Word has length 25 [2024-10-11 15:17:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:54,776 INFO L471 AbstractCegarLoop]: Abstraction has 1747 states and 2558 transitions. [2024-10-11 15:17:54,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:54,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1747 states and 2558 transitions. [2024-10-11 15:17:54,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-11 15:17:54,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:54,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 15:17:54,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 15:17:54,779 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:54,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1356760886, now seen corresponding path program 1 times [2024-10-11 15:17:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:54,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729291940] [2024-10-11 15:17:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:54,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:54,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 15:17:54,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:54,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729291940] [2024-10-11 15:17:54,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729291940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:54,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:17:54,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 15:17:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488850256] [2024-10-11 15:17:54,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:54,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:54,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:54,873 INFO L87 Difference]: Start difference. First operand 1747 states and 2558 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:55,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:55,185 INFO L93 Difference]: Finished difference Result 3503 states and 5133 transitions. [2024-10-11 15:17:55,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:55,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-10-11 15:17:55,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:55,194 INFO L225 Difference]: With dead ends: 3503 [2024-10-11 15:17:55,194 INFO L226 Difference]: Without dead ends: 1757 [2024-10-11 15:17:55,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 15:17:55,200 INFO L432 NwaCegarLoop]: 1082 mSDtfsCounter, 1 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2161 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:55,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2161 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 15:17:55,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2024-10-11 15:17:55,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1757. [2024-10-11 15:17:55,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1757 states, 1242 states have (on average 1.4186795491143318) internal successors, (1762), 1271 states have internal predecessors, (1762), 409 states have call successors, (409), 106 states have call predecessors, (409), 105 states have return successors, (403), 403 states have call predecessors, (403), 403 states have call successors, (403) [2024-10-11 15:17:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1757 states to 1757 states and 2574 transitions. [2024-10-11 15:17:55,247 INFO L78 Accepts]: Start accepts. Automaton has 1757 states and 2574 transitions. Word has length 29 [2024-10-11 15:17:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:55,248 INFO L471 AbstractCegarLoop]: Abstraction has 1757 states and 2574 transitions. [2024-10-11 15:17:55,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 15:17:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1757 states and 2574 transitions. [2024-10-11 15:17:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 15:17:55,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:55,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 15:17:55,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 15:17:55,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:55,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -788417359, now seen corresponding path program 1 times [2024-10-11 15:17:55,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:55,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894175006] [2024-10-11 15:17:55,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:55,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:55,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:55,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:55,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:17:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:55,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 15:17:55,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:55,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894175006] [2024-10-11 15:17:55,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894175006] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:17:55,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960761587] [2024-10-11 15:17:55,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:55,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:55,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:17:55,363 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:17:55,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 15:17:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:55,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:17:55,734 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:17:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 15:17:55,779 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:17:55,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960761587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:55,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:17:55,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-11 15:17:55,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203272102] [2024-10-11 15:17:55,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:55,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:55,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:55,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:55,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:55,781 INFO L87 Difference]: Start difference. First operand 1757 states and 2574 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 15:17:56,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:56,163 INFO L93 Difference]: Finished difference Result 3557 states and 5221 transitions. [2024-10-11 15:17:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:56,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-10-11 15:17:56,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:56,173 INFO L225 Difference]: With dead ends: 3557 [2024-10-11 15:17:56,173 INFO L226 Difference]: Without dead ends: 1801 [2024-10-11 15:17:56,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:56,178 INFO L432 NwaCegarLoop]: 1091 mSDtfsCounter, 13 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:56,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2169 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 15:17:56,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2024-10-11 15:17:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1801. [2024-10-11 15:17:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1274 states have (on average 1.4207221350078494) internal successors, (1810), 1303 states have internal predecessors, (1810), 421 states have call successors, (421), 106 states have call predecessors, (421), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-11 15:17:56,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2646 transitions. [2024-10-11 15:17:56,232 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2646 transitions. Word has length 34 [2024-10-11 15:17:56,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:56,233 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2646 transitions. [2024-10-11 15:17:56,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 15:17:56,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2646 transitions. [2024-10-11 15:17:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 15:17:56,234 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:56,234 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 15:17:56,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 15:17:56,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:56,434 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:56,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:56,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1859693111, now seen corresponding path program 1 times [2024-10-11 15:17:56,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:56,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877609973] [2024-10-11 15:17:56,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:56,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:56,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:17:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:56,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:17:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 15:17:56,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:56,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877609973] [2024-10-11 15:17:56,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877609973] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:17:56,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701980605] [2024-10-11 15:17:56,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:56,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:56,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:17:56,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:17:56,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 15:17:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:56,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:17:56,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:17:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 15:17:56,910 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:17:56,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701980605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:56,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:17:56,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-11 15:17:56,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607822672] [2024-10-11 15:17:56,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:56,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:56,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:56,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:56,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:56,912 INFO L87 Difference]: Start difference. First operand 1801 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:57,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:57,093 INFO L93 Difference]: Finished difference Result 1823 states and 2672 transitions. [2024-10-11 15:17:57,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:57,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-10-11 15:17:57,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:57,101 INFO L225 Difference]: With dead ends: 1823 [2024-10-11 15:17:57,102 INFO L226 Difference]: Without dead ends: 1812 [2024-10-11 15:17:57,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:57,103 INFO L432 NwaCegarLoop]: 1096 mSDtfsCounter, 1144 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:57,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1144 Valid, 1109 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 15:17:57,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2024-10-11 15:17:57,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1801. [2024-10-11 15:17:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1274 states have (on average 1.4191522762951334) internal successors, (1808), 1303 states have internal predecessors, (1808), 421 states have call successors, (421), 106 states have call predecessors, (421), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-11 15:17:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2644 transitions. [2024-10-11 15:17:57,154 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2644 transitions. Word has length 38 [2024-10-11 15:17:57,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:57,154 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2644 transitions. [2024-10-11 15:17:57,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2644 transitions. [2024-10-11 15:17:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 15:17:57,155 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:57,155 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 15:17:57,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 15:17:57,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:57,360 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:57,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:57,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1802434809, now seen corresponding path program 1 times [2024-10-11 15:17:57,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:57,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177116816] [2024-10-11 15:17:57,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:57,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:57,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:57,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:17:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:57,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:17:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:57,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 15:17:57,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:57,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177116816] [2024-10-11 15:17:57,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177116816] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:17:57,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99642090] [2024-10-11 15:17:57,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:57,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:57,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:17:57,475 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:17:57,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 15:17:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:57,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:17:57,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:17:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 15:17:57,858 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:17:57,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99642090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:57,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:17:57,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-11 15:17:57,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883318094] [2024-10-11 15:17:57,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:57,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:57,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:57,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:57,860 INFO L87 Difference]: Start difference. First operand 1801 states and 2644 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:58,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:58,027 INFO L93 Difference]: Finished difference Result 1803 states and 2645 transitions. [2024-10-11 15:17:58,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:58,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-10-11 15:17:58,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:58,037 INFO L225 Difference]: With dead ends: 1803 [2024-10-11 15:17:58,037 INFO L226 Difference]: Without dead ends: 1800 [2024-10-11 15:17:58,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:58,039 INFO L432 NwaCegarLoop]: 1081 mSDtfsCounter, 1113 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:58,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 1081 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 15:17:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2024-10-11 15:17:58,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2024-10-11 15:17:58,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1274 states have (on average 1.4183673469387754) internal successors, (1807), 1302 states have internal predecessors, (1807), 420 states have call successors, (420), 106 states have call predecessors, (420), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-11 15:17:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2642 transitions. [2024-10-11 15:17:58,099 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2642 transitions. Word has length 38 [2024-10-11 15:17:58,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:58,100 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2642 transitions. [2024-10-11 15:17:58,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2642 transitions. [2024-10-11 15:17:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 15:17:58,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:58,101 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 15:17:58,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 15:17:58,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:58,304 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:58,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:58,305 INFO L85 PathProgramCache]: Analyzing trace with hash -41316681, now seen corresponding path program 1 times [2024-10-11 15:17:58,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:58,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703251529] [2024-10-11 15:17:58,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:58,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:58,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:58,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:58,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:17:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:58,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:17:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:58,416 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 15:17:58,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:58,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703251529] [2024-10-11 15:17:58,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703251529] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:17:58,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093067741] [2024-10-11 15:17:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:58,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:58,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:17:58,419 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:17:58,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 15:17:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:58,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 1010 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:17:58,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:17:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 15:17:58,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:17:58,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093067741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:58,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:17:58,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-11 15:17:58,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816917275] [2024-10-11 15:17:58,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:58,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:58,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:58,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:58,816 INFO L87 Difference]: Start difference. First operand 1800 states and 2642 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:59,019 INFO L93 Difference]: Finished difference Result 1802 states and 2643 transitions. [2024-10-11 15:17:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:59,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-10-11 15:17:59,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:59,027 INFO L225 Difference]: With dead ends: 1802 [2024-10-11 15:17:59,027 INFO L226 Difference]: Without dead ends: 1799 [2024-10-11 15:17:59,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:59,029 INFO L432 NwaCegarLoop]: 1079 mSDtfsCounter, 1110 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:59,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1079 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 15:17:59,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2024-10-11 15:17:59,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1799. [2024-10-11 15:17:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1274 states have (on average 1.4175824175824177) internal successors, (1806), 1301 states have internal predecessors, (1806), 419 states have call successors, (419), 106 states have call predecessors, (419), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-11 15:17:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2640 transitions. [2024-10-11 15:17:59,092 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2640 transitions. Word has length 39 [2024-10-11 15:17:59,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:17:59,092 INFO L471 AbstractCegarLoop]: Abstraction has 1799 states and 2640 transitions. [2024-10-11 15:17:59,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:59,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2640 transitions. [2024-10-11 15:17:59,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-11 15:17:59,093 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:17:59,093 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 15:17:59,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 15:17:59,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-11 15:17:59,294 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:17:59,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:17:59,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1281224694, now seen corresponding path program 1 times [2024-10-11 15:17:59,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:17:59,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124570935] [2024-10-11 15:17:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:59,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:17:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:59,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:17:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:59,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:17:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:59,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:17:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 15:17:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:17:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124570935] [2024-10-11 15:17:59,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124570935] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:17:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153888232] [2024-10-11 15:17:59,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:17:59,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:17:59,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:17:59,413 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:17:59,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 15:17:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:17:59,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:17:59,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:17:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 15:17:59,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:17:59,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153888232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:17:59,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:17:59,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-11 15:17:59,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558265544] [2024-10-11 15:17:59,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:17:59,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:17:59,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:17:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:17:59,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:59,791 INFO L87 Difference]: Start difference. First operand 1799 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:17:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:17:59,972 INFO L93 Difference]: Finished difference Result 1801 states and 2641 transitions. [2024-10-11 15:17:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:17:59,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-10-11 15:17:59,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:17:59,980 INFO L225 Difference]: With dead ends: 1801 [2024-10-11 15:17:59,980 INFO L226 Difference]: Without dead ends: 1798 [2024-10-11 15:17:59,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:17:59,981 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 1107 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 15:17:59,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 1077 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 15:17:59,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2024-10-11 15:18:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2024-10-11 15:18:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1274 states have (on average 1.4167974882260597) internal successors, (1805), 1300 states have internal predecessors, (1805), 418 states have call successors, (418), 106 states have call predecessors, (418), 105 states have return successors, (415), 415 states have call predecessors, (415), 415 states have call successors, (415) [2024-10-11 15:18:00,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2638 transitions. [2024-10-11 15:18:00,108 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2638 transitions. Word has length 40 [2024-10-11 15:18:00,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:18:00,112 INFO L471 AbstractCegarLoop]: Abstraction has 1798 states and 2638 transitions. [2024-10-11 15:18:00,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:18:00,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2638 transitions. [2024-10-11 15:18:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-11 15:18:00,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:18:00,113 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 15:18:00,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 15:18:00,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 15:18:00,314 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:18:00,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:18:00,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1063662566, now seen corresponding path program 1 times [2024-10-11 15:18:00,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:18:00,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855850443] [2024-10-11 15:18:00,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:00,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:18:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:00,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:18:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:00,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:18:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:00,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:18:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:00,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 15:18:00,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:18:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855850443] [2024-10-11 15:18:00,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855850443] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:18:00,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022737197] [2024-10-11 15:18:00,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:00,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:18:00,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:18:00,431 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:18:00,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 15:18:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:00,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 1014 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:18:00,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:18:00,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 15:18:00,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:18:00,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022737197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:18:00,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:18:00,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-11 15:18:00,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626613031] [2024-10-11 15:18:00,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:18:00,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:18:00,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:18:00,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:18:00,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:18:00,832 INFO L87 Difference]: Start difference. First operand 1798 states and 2638 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:18:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:18:01,128 INFO L93 Difference]: Finished difference Result 2295 states and 3312 transitions. [2024-10-11 15:18:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:18:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-10-11 15:18:01,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:18:01,148 INFO L225 Difference]: With dead ends: 2295 [2024-10-11 15:18:01,148 INFO L226 Difference]: Without dead ends: 2260 [2024-10-11 15:18:01,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:18:01,149 INFO L432 NwaCegarLoop]: 1226 mSDtfsCounter, 1017 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 15:18:01,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 1667 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 15:18:01,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2260 states. [2024-10-11 15:18:01,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2260 to 2260. [2024-10-11 15:18:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 1571 states have (on average 1.39528962444303) internal successors, (2192), 1606 states have internal predecessors, (2192), 536 states have call successors, (536), 153 states have call predecessors, (536), 152 states have return successors, (535), 535 states have call predecessors, (535), 535 states have call successors, (535) [2024-10-11 15:18:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3263 transitions. [2024-10-11 15:18:01,331 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3263 transitions. Word has length 41 [2024-10-11 15:18:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:18:01,331 INFO L471 AbstractCegarLoop]: Abstraction has 2260 states and 3263 transitions. [2024-10-11 15:18:01,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 15:18:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3263 transitions. [2024-10-11 15:18:01,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-11 15:18:01,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:18:01,338 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 15:18:01,357 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 15:18:01,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-11 15:18:01,539 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:18:01,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:18:01,540 INFO L85 PathProgramCache]: Analyzing trace with hash 604048974, now seen corresponding path program 1 times [2024-10-11 15:18:01,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:18:01,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441857318] [2024-10-11 15:18:01,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:01,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:18:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:18:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:18:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:18:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 15:18:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 15:18:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 15:18:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 15:18:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 15:18:01,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:18:01,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441857318] [2024-10-11 15:18:01,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441857318] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:18:01,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665471786] [2024-10-11 15:18:01,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:01,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:18:01,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:18:01,701 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:18:01,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 15:18:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 1137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 15:18:02,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:18:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 15:18:02,059 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 15:18:02,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665471786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:18:02,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 15:18:02,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-11 15:18:02,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713775060] [2024-10-11 15:18:02,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:18:02,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 15:18:02,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:18:02,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 15:18:02,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 15:18:02,060 INFO L87 Difference]: Start difference. First operand 2260 states and 3263 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 15:18:02,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:18:02,333 INFO L93 Difference]: Finished difference Result 4537 states and 6554 transitions. [2024-10-11 15:18:02,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 15:18:02,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2024-10-11 15:18:02,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:18:02,346 INFO L225 Difference]: With dead ends: 4537 [2024-10-11 15:18:02,346 INFO L226 Difference]: Without dead ends: 2278 [2024-10-11 15:18:02,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 15:18:02,357 INFO L432 NwaCegarLoop]: 1027 mSDtfsCounter, 19 mSDsluCounter, 1022 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2049 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 15:18:02,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2049 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 15:18:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2024-10-11 15:18:02,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 2262. [2024-10-11 15:18:02,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2262 states, 1573 states have (on average 1.3947870311506676) internal successors, (2194), 1608 states have internal predecessors, (2194), 536 states have call successors, (536), 153 states have call predecessors, (536), 152 states have return successors, (535), 535 states have call predecessors, (535), 535 states have call successors, (535) [2024-10-11 15:18:02,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 3265 transitions. [2024-10-11 15:18:02,493 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 3265 transitions. Word has length 66 [2024-10-11 15:18:02,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:18:02,493 INFO L471 AbstractCegarLoop]: Abstraction has 2262 states and 3265 transitions. [2024-10-11 15:18:02,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 15:18:02,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 3265 transitions. [2024-10-11 15:18:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 15:18:02,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:18:02,497 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-11 15:18:02,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 15:18:02,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:18:02,697 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:18:02,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:18:02,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1008921741, now seen corresponding path program 1 times [2024-10-11 15:18:02,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:18:02,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873299759] [2024-10-11 15:18:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:18:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:18:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-11 15:18:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 15:18:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 15:18:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 15:18:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 15:18:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 15:18:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 15:18:02,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:18:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873299759] [2024-10-11 15:18:02,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873299759] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 15:18:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723448224] [2024-10-11 15:18:02,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:02,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 15:18:02,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 15:18:02,838 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 15:18:02,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 15:18:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:03,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 15:18:03,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 15:18:03,220 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 15:18:03,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 15:18:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 15:18:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723448224] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 15:18:03,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 15:18:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-10-11 15:18:03,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520910987] [2024-10-11 15:18:03,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 15:18:03,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 15:18:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:18:03,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 15:18:03,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-11 15:18:03,286 INFO L87 Difference]: Start difference. First operand 2262 states and 3265 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 15:18:08,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:12,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:16,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:20,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:24,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:28,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:31,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:35,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:37,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:18:38,464 INFO L93 Difference]: Finished difference Result 4667 states and 6769 transitions. [2024-10-11 15:18:38,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 15:18:38,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 69 [2024-10-11 15:18:38,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:18:38,475 INFO L225 Difference]: With dead ends: 4667 [2024-10-11 15:18:38,476 INFO L226 Difference]: Without dead ends: 2406 [2024-10-11 15:18:38,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-11 15:18:38,483 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 623 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 83 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.0s IncrementalHoareTripleChecker+Time [2024-10-11 15:18:38,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1080 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1537 Invalid, 7 Unknown, 0 Unchecked, 35.0s Time] [2024-10-11 15:18:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2024-10-11 15:18:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2406. [2024-10-11 15:18:38,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 1687 states have (on average 1.3965619442797865) internal successors, (2356), 1722 states have internal predecessors, (2356), 566 states have call successors, (566), 153 states have call predecessors, (566), 152 states have return successors, (565), 565 states have call predecessors, (565), 565 states have call successors, (565) [2024-10-11 15:18:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 3487 transitions. [2024-10-11 15:18:38,667 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 3487 transitions. Word has length 69 [2024-10-11 15:18:38,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:18:38,668 INFO L471 AbstractCegarLoop]: Abstraction has 2406 states and 3487 transitions. [2024-10-11 15:18:38,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (16), 3 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 15:18:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 3487 transitions. [2024-10-11 15:18:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-11 15:18:38,671 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:18:38,671 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 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] [2024-10-11 15:18:38,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 15:18:38,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 15:18:38,872 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:18:38,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:18:38,873 INFO L85 PathProgramCache]: Analyzing trace with hash 374173069, now seen corresponding path program 2 times [2024-10-11 15:18:38,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:18:38,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764913180] [2024-10-11 15:18:38,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:38,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:18:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:18:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 15:18:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 15:18:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 15:18:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 15:18:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 15:18:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 15:18:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:18:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-11 15:18:39,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:18:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764913180] [2024-10-11 15:18:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764913180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:18:39,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:18:39,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 15:18:39,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732980350] [2024-10-11 15:18:39,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:18:39,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 15:18:39,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:18:39,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 15:18:39,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:18:39,097 INFO L87 Difference]: Start difference. First operand 2406 states and 3487 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 15:18:45,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:49,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:53,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:58,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-11 15:18:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 15:18:59,571 INFO L93 Difference]: Finished difference Result 4815 states and 6979 transitions. [2024-10-11 15:18:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 15:18:59,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 81 [2024-10-11 15:18:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 15:18:59,603 INFO L225 Difference]: With dead ends: 4815 [2024-10-11 15:18:59,603 INFO L226 Difference]: Without dead ends: 2410 [2024-10-11 15:18:59,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 15:18:59,617 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 552 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 65 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2024-10-11 15:18:59,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1418 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2256 Invalid, 2 Unknown, 0 Unchecked, 20.3s Time] [2024-10-11 15:18:59,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2410 states. [2024-10-11 15:18:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2410 to 2410. [2024-10-11 15:18:59,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2410 states, 1691 states have (on average 1.3956238911886458) internal successors, (2360), 1726 states have internal predecessors, (2360), 566 states have call successors, (566), 153 states have call predecessors, (566), 152 states have return successors, (565), 565 states have call predecessors, (565), 565 states have call successors, (565) [2024-10-11 15:18:59,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 3491 transitions. [2024-10-11 15:18:59,814 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 3491 transitions. Word has length 81 [2024-10-11 15:18:59,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 15:18:59,818 INFO L471 AbstractCegarLoop]: Abstraction has 2410 states and 3491 transitions. [2024-10-11 15:18:59,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-11 15:18:59,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 3491 transitions. [2024-10-11 15:18:59,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 15:18:59,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 15:18:59,825 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2024-10-11 15:18:59,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 15:18:59,826 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 15:18:59,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 15:18:59,828 INFO L85 PathProgramCache]: Analyzing trace with hash -439587882, now seen corresponding path program 1 times [2024-10-11 15:18:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 15:18:59,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848783770] [2024-10-11 15:18:59,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 15:18:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 15:18:59,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 15:19:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 15:19:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 15:19:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 15:19:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 15:19:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 15:19:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 15:19:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 15:19:00,342 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-11 15:19:00,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 15:19:00,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848783770] [2024-10-11 15:19:00,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848783770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 15:19:00,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 15:19:00,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 15:19:00,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924302124] [2024-10-11 15:19:00,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 15:19:00,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 15:19:00,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 15:19:00,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 15:19:00,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 15:19:00,344 INFO L87 Difference]: Start difference. First operand 2410 states and 3491 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)