./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:54:10,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:54:10,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:54:11,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:54:11,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:54:11,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:54:11,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:54:11,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:54:11,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:54:11,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:54:11,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:54:11,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:54:11,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:54:11,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:54:11,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:54:11,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:54:11,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:54:11,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:54:11,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:54:11,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:54:11,051 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:54:11,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:54:11,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:54:11,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:54:11,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:54:11,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:54:11,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:54:11,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:54:11,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:54:11,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:54:11,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:54:11,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:54:11,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:54:11,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:54:11,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:54:11,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:54:11,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:54:11,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:54:11,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:54:11,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:54:11,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:54:11,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:54:11,076 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:54:11,107 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:54:11,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:54:11,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:54:11,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:54:11,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:54:11,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:54:11,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:54:11,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:54:11,110 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:54:11,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:54:11,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:54:11,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:54:11,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:54:11,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:54:11,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:54:11,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:54:11,112 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:54:11,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:54:11,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:54:11,113 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:54:11,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:54:11,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:54:11,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:54:11,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:54:11,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:54:11,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:54:11,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:54:11,115 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:54:11,116 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:54:11,116 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:54:11,116 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2022-07-22 23:54:11,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:54:11,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:54:11,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:54:11,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:54:11,373 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:54:11,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-07-22 23:54:11,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b35631/d940be8a818542e292718a6b5eb47000/FLAG5fc76570d [2022-07-22 23:54:12,123 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:54:12,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-07-22 23:54:12,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b35631/d940be8a818542e292718a6b5eb47000/FLAG5fc76570d [2022-07-22 23:54:12,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1f6b35631/d940be8a818542e292718a6b5eb47000 [2022-07-22 23:54:12,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:54:12,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:54:12,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:54:12,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:54:12,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:54:12,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:54:12" (1/1) ... [2022-07-22 23:54:12,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5395bf53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:12, skipping insertion in model container [2022-07-22 23:54:12,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:54:12" (1/1) ... [2022-07-22 23:54:12,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:54:12,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:54:13,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-07-22 23:54:13,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:54:13,991 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:54:14,135 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-07-22 23:54:14,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:54:14,330 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:54:14,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14 WrapperNode [2022-07-22 23:54:14,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:54:14,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:54:14,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:54:14,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:54:14,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,501 INFO L137 Inliner]: procedures = 175, calls = 709, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1874 [2022-07-22 23:54:14,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:54:14,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:54:14,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:54:14,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:54:14,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:54:14,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:54:14,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:54:14,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:54:14,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (1/1) ... [2022-07-22 23:54:14,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:54:14,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:54:14,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:54:14,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:54:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2022-07-22 23:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2022-07-22 23:54:14,762 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-22 23:54:14,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-22 23:54:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2022-07-22 23:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2022-07-22 23:54:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-22 23:54:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-22 23:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-22 23:54:14,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-22 23:54:14,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-22 23:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:54:14,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 23:54:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-22 23:54:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-22 23:54:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2022-07-22 23:54:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2022-07-22 23:54:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2022-07-22 23:54:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2022-07-22 23:54:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-22 23:54:14,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-22 23:54:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-22 23:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-22 23:54:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:54:14,766 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2022-07-22 23:54:14,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2022-07-22 23:54:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:54:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:54:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:54:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:54:14,767 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2022-07-22 23:54:14,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2022-07-22 23:54:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 23:54:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2022-07-22 23:54:14,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2022-07-22 23:54:14,768 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-22 23:54:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-22 23:54:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:54:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:54:14,769 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2022-07-22 23:54:14,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2022-07-22 23:54:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2022-07-22 23:54:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2022-07-22 23:54:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2022-07-22 23:54:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2022-07-22 23:54:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2022-07-22 23:54:14,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2022-07-22 23:54:14,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-22 23:54:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:54:14,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:54:14,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:54:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:54:14,772 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2022-07-22 23:54:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2022-07-22 23:54:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:54:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2022-07-22 23:54:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2022-07-22 23:54:14,774 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:54:14,774 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2022-07-22 23:54:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2022-07-22 23:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2022-07-22 23:54:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2022-07-22 23:54:14,775 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2022-07-22 23:54:14,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2022-07-22 23:54:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:54:14,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:54:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-22 23:54:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-22 23:54:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:54:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-22 23:54:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-22 23:54:14,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-22 23:54:14,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-22 23:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2022-07-22 23:54:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2022-07-22 23:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-22 23:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2022-07-22 23:54:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2022-07-22 23:54:14,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-22 23:54:14,778 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-22 23:54:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:54:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:54:14,779 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-22 23:54:14,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-22 23:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2022-07-22 23:54:14,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2022-07-22 23:54:14,780 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-22 23:54:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-22 23:54:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-22 23:54:14,781 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-22 23:54:14,781 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2022-07-22 23:54:14,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2022-07-22 23:54:14,782 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:54:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:54:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-22 23:54:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-22 23:54:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-22 23:54:14,783 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-22 23:54:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 23:54:14,783 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2022-07-22 23:54:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2022-07-22 23:54:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-22 23:54:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-22 23:54:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-22 23:54:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-22 23:54:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-22 23:54:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-22 23:54:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:54:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:54:14,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:54:14,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:54:15,238 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:54:15,240 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:54:15,411 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:54:17,850 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:54:17,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:54:17,873 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-22 23:54:17,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:54:17 BoogieIcfgContainer [2022-07-22 23:54:17,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:54:17,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:54:17,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:54:17,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:54:17,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:54:12" (1/3) ... [2022-07-22 23:54:17,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a974fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:54:17, skipping insertion in model container [2022-07-22 23:54:17,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:54:14" (2/3) ... [2022-07-22 23:54:17,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51a974fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:54:17, skipping insertion in model container [2022-07-22 23:54:17,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:54:17" (3/3) ... [2022-07-22 23:54:17,891 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-07-22 23:54:17,905 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:54:17,905 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:54:17,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:54:17,982 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@40043f55, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3a768211 [2022-07-22 23:54:17,983 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:54:17,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 732 states, 523 states have (on average 1.349904397705545) internal successors, (706), 537 states have internal predecessors, (706), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-07-22 23:54:18,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 23:54:18,006 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:18,007 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:54:18,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:18,013 INFO L85 PathProgramCache]: Analyzing trace with hash 127676684, now seen corresponding path program 1 times [2022-07-22 23:54:18,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:54:18,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437960433] [2022-07-22 23:54:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:18,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:54:18,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:54:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:54:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:54:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:54:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:54:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:54:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:54:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:54:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:54:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:54:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:54:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:18,778 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-22 23:54:18,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:18,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437960433] [2022-07-22 23:54:18,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437960433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:18,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:18,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:54:18,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539883991] [2022-07-22 23:54:18,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:18,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:54:18,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:18,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:54:18,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:54:18,830 INFO L87 Difference]: Start difference. First operand has 732 states, 523 states have (on average 1.349904397705545) internal successors, (706), 537 states have internal predecessors, (706), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-22 23:54:19,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:21,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:25,067 INFO L93 Difference]: Finished difference Result 2407 states and 3536 transitions. [2022-07-22 23:54:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:54:25,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2022-07-22 23:54:25,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:25,097 INFO L225 Difference]: With dead ends: 2407 [2022-07-22 23:54:25,097 INFO L226 Difference]: Without dead ends: 1664 [2022-07-22 23:54:25,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:54:25,112 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 1869 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1963 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 2284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:25,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1963 Valid, 2667 Invalid, 2284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [970 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-07-22 23:54:25,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-07-22 23:54:25,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1392. [2022-07-22 23:54:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1003 states have (on average 1.3339980059820538) internal successors, (1338), 1019 states have internal predecessors, (1338), 292 states have call successors, (292), 97 states have call predecessors, (292), 96 states have return successors, (291), 291 states have call predecessors, (291), 291 states have call successors, (291) [2022-07-22 23:54:25,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1921 transitions. [2022-07-22 23:54:25,323 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1921 transitions. Word has length 96 [2022-07-22 23:54:25,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:25,324 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1921 transitions. [2022-07-22 23:54:25,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-22 23:54:25,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1921 transitions. [2022-07-22 23:54:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-22 23:54:25,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:25,333 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:54:25,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 23:54:25,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:25,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:25,334 INFO L85 PathProgramCache]: Analyzing trace with hash -600740709, now seen corresponding path program 1 times [2022-07-22 23:54:25,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:54:25,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871062492] [2022-07-22 23:54:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:25,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:54:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:54:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:54:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:25,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:54:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:54:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:54:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:54:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:54:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:54:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:54:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:54:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:54:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:54:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-22 23:54:25,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:25,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871062492] [2022-07-22 23:54:25,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871062492] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:25,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:25,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:54:25,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687773025] [2022-07-22 23:54:25,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:25,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:54:25,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:54:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:54:25,850 INFO L87 Difference]: Start difference. First operand 1392 states and 1921 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-22 23:54:30,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:30,631 INFO L93 Difference]: Finished difference Result 4647 states and 6600 transitions. [2022-07-22 23:54:30,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:54:30,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2022-07-22 23:54:30,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:30,655 INFO L225 Difference]: With dead ends: 4647 [2022-07-22 23:54:30,656 INFO L226 Difference]: Without dead ends: 3279 [2022-07-22 23:54:30,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:54:30,665 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 1905 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 2298 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2009 SdHoareTripleChecker+Valid, 4063 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 2298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:30,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2009 Valid, 4063 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 2298 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-07-22 23:54:30,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-07-22 23:54:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2781. [2022-07-22 23:54:30,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 2006 states have (on average 1.335493519441675) internal successors, (2679), 2042 states have internal predecessors, (2679), 574 states have call successors, (574), 193 states have call predecessors, (574), 200 states have return successors, (613), 575 states have call predecessors, (613), 573 states have call successors, (613) [2022-07-22 23:54:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3866 transitions. [2022-07-22 23:54:30,819 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3866 transitions. Word has length 107 [2022-07-22 23:54:30,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:30,820 INFO L495 AbstractCegarLoop]: Abstraction has 2781 states and 3866 transitions. [2022-07-22 23:54:30,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-22 23:54:30,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3866 transitions. [2022-07-22 23:54:30,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-22 23:54:30,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:30,841 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:54:30,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 23:54:30,842 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:30,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1193824511, now seen corresponding path program 1 times [2022-07-22 23:54:30,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:54:30,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967032377] [2022-07-22 23:54:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:30,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:54:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:54:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:54:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:31,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:54:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:54:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:54:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:54:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:54:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:54:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:54:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:54:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:54:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-22 23:54:31,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:54:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-22 23:54:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:54:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:54:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:54:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-22 23:54:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:31,521 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-22 23:54:31,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:31,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967032377] [2022-07-22 23:54:31,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967032377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:31,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:31,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:54:31,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197750218] [2022-07-22 23:54:31,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:31,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:54:31,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:31,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:54:31,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:54:31,529 INFO L87 Difference]: Start difference. First operand 2781 states and 3866 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-22 23:54:33,507 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:38,099 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:39,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:39,239 INFO L93 Difference]: Finished difference Result 8209 states and 11541 transitions. [2022-07-22 23:54:39,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:54:39,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 239 [2022-07-22 23:54:39,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:39,276 INFO L225 Difference]: With dead ends: 8209 [2022-07-22 23:54:39,276 INFO L226 Difference]: Without dead ends: 5458 [2022-07-22 23:54:39,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:54:39,293 INFO L413 NwaCegarLoop]: 1017 mSDtfsCounter, 1938 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 1175 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 2613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1175 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:39,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 2494 Invalid, 2613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1175 Valid, 1437 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-07-22 23:54:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5458 states. [2022-07-22 23:54:39,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5458 to 4591. [2022-07-22 23:54:39,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 3288 states have (on average 1.3333333333333333) internal successors, (4384), 3348 states have internal predecessors, (4384), 930 states have call successors, (930), 349 states have call predecessors, (930), 372 states have return successors, (1005), 937 states have call predecessors, (1005), 929 states have call successors, (1005) [2022-07-22 23:54:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6319 transitions. [2022-07-22 23:54:39,555 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6319 transitions. Word has length 239 [2022-07-22 23:54:39,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:39,555 INFO L495 AbstractCegarLoop]: Abstraction has 4591 states and 6319 transitions. [2022-07-22 23:54:39,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-22 23:54:39,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6319 transitions. [2022-07-22 23:54:39,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-22 23:54:39,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:39,573 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:54:39,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 23:54:39,574 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:39,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:39,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1392742117, now seen corresponding path program 1 times [2022-07-22 23:54:39,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:54:39,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824598977] [2022-07-22 23:54:39,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:39,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:54:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:54:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:54:39,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:54:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:54:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:54:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:54:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:54:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:54:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:54:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:54:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:54:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-22 23:54:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:54:40,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:54:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:54:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-22 23:54:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-07-22 23:54:40,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:40,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824598977] [2022-07-22 23:54:40,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824598977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:40,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:40,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 23:54:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554006747] [2022-07-22 23:54:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:40,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:54:40,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:40,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:54:40,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:54:40,104 INFO L87 Difference]: Start difference. First operand 4591 states and 6319 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-22 23:54:42,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:48,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:48,080 INFO L93 Difference]: Finished difference Result 12001 states and 16776 transitions. [2022-07-22 23:54:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 23:54:48,081 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 220 [2022-07-22 23:54:48,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:48,125 INFO L225 Difference]: With dead ends: 12001 [2022-07-22 23:54:48,125 INFO L226 Difference]: Without dead ends: 7440 [2022-07-22 23:54:48,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:54:48,144 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 953 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 354 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 4343 SdHoareTripleChecker+Invalid, 3340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:48,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 4343 Invalid, 3340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2985 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-07-22 23:54:48,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7440 states. [2022-07-22 23:54:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7440 to 6334. [2022-07-22 23:54:48,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6334 states, 4581 states have (on average 1.3219820999781706) internal successors, (6056), 4675 states have internal predecessors, (6056), 1233 states have call successors, (1233), 484 states have call predecessors, (1233), 519 states have return successors, (1339), 1244 states have call predecessors, (1339), 1232 states have call successors, (1339) [2022-07-22 23:54:48,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6334 states to 6334 states and 8628 transitions. [2022-07-22 23:54:48,434 INFO L78 Accepts]: Start accepts. Automaton has 6334 states and 8628 transitions. Word has length 220 [2022-07-22 23:54:48,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:48,436 INFO L495 AbstractCegarLoop]: Abstraction has 6334 states and 8628 transitions. [2022-07-22 23:54:48,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-22 23:54:48,437 INFO L276 IsEmpty]: Start isEmpty. Operand 6334 states and 8628 transitions. [2022-07-22 23:54:48,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-22 23:54:48,457 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:48,457 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:54:48,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 23:54:48,458 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:48,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:48,459 INFO L85 PathProgramCache]: Analyzing trace with hash 275000351, now seen corresponding path program 1 times [2022-07-22 23:54:48,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:54:48,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237118274] [2022-07-22 23:54:48,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:48,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:54:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:54:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:54:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:54:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:54:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:54:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:54:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:54:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:54:48,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:54:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:54:48,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:54:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:54:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:54:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 23:54:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:54:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:48,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-22 23:54:48,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:48,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:54:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:54:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:54:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-07-22 23:54:49,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:49,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237118274] [2022-07-22 23:54:49,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237118274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:49,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:49,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:54:49,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047970061] [2022-07-22 23:54:49,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:49,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:54:49,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:54:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:54:49,107 INFO L87 Difference]: Start difference. First operand 6334 states and 8628 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-22 23:54:51,940 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:54:55,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:54:55,446 INFO L93 Difference]: Finished difference Result 16777 states and 23178 transitions. [2022-07-22 23:54:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:54:55,447 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 257 [2022-07-22 23:54:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:54:55,505 INFO L225 Difference]: With dead ends: 16777 [2022-07-22 23:54:55,505 INFO L226 Difference]: Without dead ends: 10488 [2022-07-22 23:54:55,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:54:55,531 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 2157 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 1188 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2260 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:54:55,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2260 Valid, 2480 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1188 Valid, 1378 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-07-22 23:54:55,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-07-22 23:54:55,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 8796. [2022-07-22 23:54:55,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8796 states, 6363 states have (on average 1.3163602074493164) internal successors, (8376), 6487 states have internal predecessors, (8376), 1675 states have call successors, (1675), 710 states have call predecessors, (1675), 757 states have return successors, (1814), 1690 states have call predecessors, (1814), 1674 states have call successors, (1814) [2022-07-22 23:54:55,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8796 states to 8796 states and 11865 transitions. [2022-07-22 23:54:55,947 INFO L78 Accepts]: Start accepts. Automaton has 8796 states and 11865 transitions. Word has length 257 [2022-07-22 23:54:55,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:54:55,947 INFO L495 AbstractCegarLoop]: Abstraction has 8796 states and 11865 transitions. [2022-07-22 23:54:55,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-22 23:54:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand 8796 states and 11865 transitions. [2022-07-22 23:54:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-22 23:54:55,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:54:55,969 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:54:55,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 23:54:55,969 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:54:55,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:54:55,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1149940619, now seen corresponding path program 1 times [2022-07-22 23:54:55,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:54:55,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812511937] [2022-07-22 23:54:55,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:54:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:54:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:54:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:54:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:56,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:54:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:54:56,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:54:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:54:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:54:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:54:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:54:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:54:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:54:56,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:54:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:54:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:54:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:56,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:54:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:54:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:54:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:54:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:54:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:54:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:54:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:54:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-07-22 23:54:56,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:54:56,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812511937] [2022-07-22 23:54:56,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812511937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:54:56,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:54:56,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:54:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784246743] [2022-07-22 23:54:56,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:54:56,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:54:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:54:56,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:54:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:54:56,506 INFO L87 Difference]: Start difference. First operand 8796 states and 11865 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-22 23:54:59,109 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:55:04,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:04,912 INFO L93 Difference]: Finished difference Result 26127 states and 35783 transitions. [2022-07-22 23:55:04,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:55:04,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 238 [2022-07-22 23:55:04,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:04,990 INFO L225 Difference]: With dead ends: 26127 [2022-07-22 23:55:04,990 INFO L226 Difference]: Without dead ends: 17376 [2022-07-22 23:55:05,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:55:05,024 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 1504 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:05,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 3699 Invalid, 3149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-22 23:55:05,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17376 states. [2022-07-22 23:55:05,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17376 to 14374. [2022-07-22 23:55:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14374 states, 10507 states have (on average 1.2949462263253069) internal successors, (13606), 10717 states have internal predecessors, (13606), 2565 states have call successors, (2565), 1218 states have call predecessors, (2565), 1301 states have return successors, (2795), 2592 states have call predecessors, (2795), 2564 states have call successors, (2795) [2022-07-22 23:55:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14374 states to 14374 states and 18966 transitions. [2022-07-22 23:55:05,750 INFO L78 Accepts]: Start accepts. Automaton has 14374 states and 18966 transitions. Word has length 238 [2022-07-22 23:55:05,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:05,751 INFO L495 AbstractCegarLoop]: Abstraction has 14374 states and 18966 transitions. [2022-07-22 23:55:05,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-22 23:55:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 14374 states and 18966 transitions. [2022-07-22 23:55:05,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-22 23:55:05,779 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:05,780 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:05,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 23:55:05,781 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:05,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:05,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1294557896, now seen corresponding path program 1 times [2022-07-22 23:55:05,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:05,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036240225] [2022-07-22 23:55:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:05,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:06,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:06,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:06,387 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-22 23:55:06,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:55:06,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036240225] [2022-07-22 23:55:06,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036240225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:55:06,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:55:06,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:55:06,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104432268] [2022-07-22 23:55:06,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:55:06,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:55:06,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:55:06,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:55:06,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:55:06,390 INFO L87 Difference]: Start difference. First operand 14374 states and 18966 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-22 23:55:11,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:11,414 INFO L93 Difference]: Finished difference Result 31744 states and 42582 transitions. [2022-07-22 23:55:11,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:55:11,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 237 [2022-07-22 23:55:11,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:11,486 INFO L225 Difference]: With dead ends: 31744 [2022-07-22 23:55:11,487 INFO L226 Difference]: Without dead ends: 17415 [2022-07-22 23:55:11,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:55:11,526 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 475 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 1512 mSolverCounterSat, 404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 2765 SdHoareTripleChecker+Invalid, 1916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:11,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 2765 Invalid, 1916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1512 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-22 23:55:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-07-22 23:55:12,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 14398. [2022-07-22 23:55:12,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14398 states, 10531 states have (on average 1.2942740480486183) internal successors, (13630), 10741 states have internal predecessors, (13630), 2565 states have call successors, (2565), 1218 states have call predecessors, (2565), 1301 states have return successors, (2795), 2592 states have call predecessors, (2795), 2564 states have call successors, (2795) [2022-07-22 23:55:12,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14398 states to 14398 states and 18990 transitions. [2022-07-22 23:55:12,178 INFO L78 Accepts]: Start accepts. Automaton has 14398 states and 18990 transitions. Word has length 237 [2022-07-22 23:55:12,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:12,179 INFO L495 AbstractCegarLoop]: Abstraction has 14398 states and 18990 transitions. [2022-07-22 23:55:12,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-22 23:55:12,180 INFO L276 IsEmpty]: Start isEmpty. Operand 14398 states and 18990 transitions. [2022-07-22 23:55:12,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-22 23:55:12,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:12,206 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:12,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 23:55:12,206 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:12,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1026181340, now seen corresponding path program 1 times [2022-07-22 23:55:12,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:12,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263529137] [2022-07-22 23:55:12,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:12,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-22 23:55:12,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:55:12,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263529137] [2022-07-22 23:55:12,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263529137] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:55:12,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689325284] [2022-07-22 23:55:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:12,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:55:12,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:55:12,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:55:12,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 23:55:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:13,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-22 23:55:13,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:55:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 106 proven. 8 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-22 23:55:14,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:55:15,909 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-07-22 23:55:15,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689325284] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 23:55:15,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:55:15,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 9] total 21 [2022-07-22 23:55:15,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021363680] [2022-07-22 23:55:15,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:55:15,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 23:55:15,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:55:15,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 23:55:15,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-07-22 23:55:15,911 INFO L87 Difference]: Start difference. First operand 14398 states and 18990 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 7 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) [2022-07-22 23:55:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:24,186 INFO L93 Difference]: Finished difference Result 38624 states and 53500 transitions. [2022-07-22 23:55:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 23:55:24,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 7 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) Word has length 239 [2022-07-22 23:55:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:24,320 INFO L225 Difference]: With dead ends: 38624 [2022-07-22 23:55:24,321 INFO L226 Difference]: Without dead ends: 31233 [2022-07-22 23:55:24,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 524 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2022-07-22 23:55:24,373 INFO L413 NwaCegarLoop]: 1857 mSDtfsCounter, 3258 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 5010 mSolverCounterSat, 1300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 6210 SdHoareTripleChecker+Invalid, 6310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1300 IncrementalHoareTripleChecker+Valid, 5010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:24,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 6210 Invalid, 6310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1300 Valid, 5010 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-07-22 23:55:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31233 states. [2022-07-22 23:55:25,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31233 to 22242. [2022-07-22 23:55:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22242 states, 16233 states have (on average 1.2936610608020698) internal successors, (21000), 16583 states have internal predecessors, (21000), 3966 states have call successors, (3966), 1825 states have call predecessors, (3966), 2042 states have return successors, (4587), 4113 states have call predecessors, (4587), 3965 states have call successors, (4587) [2022-07-22 23:55:25,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22242 states to 22242 states and 29553 transitions. [2022-07-22 23:55:25,675 INFO L78 Accepts]: Start accepts. Automaton has 22242 states and 29553 transitions. Word has length 239 [2022-07-22 23:55:25,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:25,676 INFO L495 AbstractCegarLoop]: Abstraction has 22242 states and 29553 transitions. [2022-07-22 23:55:25,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 7 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) [2022-07-22 23:55:25,676 INFO L276 IsEmpty]: Start isEmpty. Operand 22242 states and 29553 transitions. [2022-07-22 23:55:25,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-22 23:55:25,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:25,705 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:25,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 23:55:25,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:55:25,920 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:25,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1190959835, now seen corresponding path program 1 times [2022-07-22 23:55:25,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:25,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651325762] [2022-07-22 23:55:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:26,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:26,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:26,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:55:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-07-22 23:55:26,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:55:26,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651325762] [2022-07-22 23:55:26,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651325762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:55:26,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:55:26,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 23:55:26,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378229808] [2022-07-22 23:55:26,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:55:26,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 23:55:26,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:55:26,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 23:55:26,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 23:55:26,447 INFO L87 Difference]: Start difference. First operand 22242 states and 29553 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-22 23:55:27,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:55:31,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:31,419 INFO L93 Difference]: Finished difference Result 49080 states and 66666 transitions. [2022-07-22 23:55:31,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:55:31,419 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 241 [2022-07-22 23:55:31,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:31,563 INFO L225 Difference]: With dead ends: 49080 [2022-07-22 23:55:31,564 INFO L226 Difference]: Without dead ends: 26883 [2022-07-22 23:55:31,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-22 23:55:31,635 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 767 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 3008 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:31,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 3008 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 1580 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-22 23:55:31,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26883 states. [2022-07-22 23:55:32,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26883 to 22214. [2022-07-22 23:55:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22214 states, 16205 states have (on average 1.2915766738660908) internal successors, (20930), 16555 states have internal predecessors, (20930), 3966 states have call successors, (3966), 1825 states have call predecessors, (3966), 2042 states have return successors, (4587), 4113 states have call predecessors, (4587), 3965 states have call successors, (4587) [2022-07-22 23:55:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 29483 transitions. [2022-07-22 23:55:32,966 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 29483 transitions. Word has length 241 [2022-07-22 23:55:32,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:32,967 INFO L495 AbstractCegarLoop]: Abstraction has 22214 states and 29483 transitions. [2022-07-22 23:55:32,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-22 23:55:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 29483 transitions. [2022-07-22 23:55:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-22 23:55:32,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:32,991 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:32,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 23:55:32,991 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:32,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash 133663156, now seen corresponding path program 1 times [2022-07-22 23:55:32,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:32,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844384106] [2022-07-22 23:55:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:32,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:33,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:33,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:55:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:33,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:33,473 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-22 23:55:33,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:55:33,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844384106] [2022-07-22 23:55:33,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844384106] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:55:33,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613410609] [2022-07-22 23:55:33,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:33,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:55:33,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:55:33,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:55:33,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 23:55:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:34,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:55:34,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:55:34,171 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-22 23:55:34,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:55:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-22 23:55:34,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613410609] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:55:34,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 23:55:34,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-07-22 23:55:34,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135074547] [2022-07-22 23:55:34,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 23:55:34,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 23:55:34,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:55:34,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 23:55:34,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:55:34,398 INFO L87 Difference]: Start difference. First operand 22214 states and 29483 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 6 states have internal predecessors, (142), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-22 23:55:37,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:55:41,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:41,577 INFO L93 Difference]: Finished difference Result 49456 states and 66962 transitions. [2022-07-22 23:55:41,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:55:41,577 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 6 states have internal predecessors, (142), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 243 [2022-07-22 23:55:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:41,703 INFO L225 Difference]: With dead ends: 49456 [2022-07-22 23:55:41,703 INFO L226 Difference]: Without dead ends: 27287 [2022-07-22 23:55:41,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-07-22 23:55:41,771 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 696 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 2365 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:41,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 4011 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2365 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-07-22 23:55:41,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27287 states. [2022-07-22 23:55:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27287 to 22646. [2022-07-22 23:55:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22646 states, 16637 states have (on average 1.2840055298431208) internal successors, (21362), 16987 states have internal predecessors, (21362), 3966 states have call successors, (3966), 1825 states have call predecessors, (3966), 2042 states have return successors, (4587), 4113 states have call predecessors, (4587), 3965 states have call successors, (4587) [2022-07-22 23:55:42,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22646 states to 22646 states and 29915 transitions. [2022-07-22 23:55:42,840 INFO L78 Accepts]: Start accepts. Automaton has 22646 states and 29915 transitions. Word has length 243 [2022-07-22 23:55:42,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:42,841 INFO L495 AbstractCegarLoop]: Abstraction has 22646 states and 29915 transitions. [2022-07-22 23:55:42,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 6 states have internal predecessors, (142), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-22 23:55:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 22646 states and 29915 transitions. [2022-07-22 23:55:42,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-22 23:55:42,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:42,860 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:42,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 23:55:43,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-22 23:55:43,089 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:43,089 INFO L85 PathProgramCache]: Analyzing trace with hash -132942688, now seen corresponding path program 2 times [2022-07-22 23:55:43,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:43,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221534774] [2022-07-22 23:55:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:43,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:43,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:43,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:55:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-22 23:55:44,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:55:44,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221534774] [2022-07-22 23:55:44,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221534774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:55:44,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:55:44,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 23:55:44,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764805544] [2022-07-22 23:55:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:55:44,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 23:55:44,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:55:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 23:55:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:55:44,062 INFO L87 Difference]: Start difference. First operand 22646 states and 29915 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-22 23:55:50,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:50,699 INFO L93 Difference]: Finished difference Result 49958 states and 67478 transitions. [2022-07-22 23:55:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-22 23:55:50,700 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 249 [2022-07-22 23:55:50,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:50,815 INFO L225 Difference]: With dead ends: 49958 [2022-07-22 23:55:50,815 INFO L226 Difference]: Without dead ends: 27357 [2022-07-22 23:55:50,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-07-22 23:55:50,887 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 742 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 4283 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:50,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 4283 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-22 23:55:50,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27357 states. [2022-07-22 23:55:51,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27357 to 22968. [2022-07-22 23:55:51,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22968 states, 16875 states have (on average 1.28) internal successors, (21600), 17211 states have internal predecessors, (21600), 4008 states have call successors, (4008), 1825 states have call predecessors, (4008), 2084 states have return successors, (4751), 4211 states have call predecessors, (4751), 4007 states have call successors, (4751) [2022-07-22 23:55:52,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22968 states to 22968 states and 30359 transitions. [2022-07-22 23:55:52,011 INFO L78 Accepts]: Start accepts. Automaton has 22968 states and 30359 transitions. Word has length 249 [2022-07-22 23:55:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:52,012 INFO L495 AbstractCegarLoop]: Abstraction has 22968 states and 30359 transitions. [2022-07-22 23:55:52,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-22 23:55:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 22968 states and 30359 transitions. [2022-07-22 23:55:52,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-22 23:55:52,031 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:52,031 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:52,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 23:55:52,031 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:52,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1109577762, now seen corresponding path program 1 times [2022-07-22 23:55:52,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:52,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70117698] [2022-07-22 23:55:52,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:52,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:55:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:55:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 23:55:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:54,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:54,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:55:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:54,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:54,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:55:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-22 23:55:54,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:55:54,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70117698] [2022-07-22 23:55:54,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70117698] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:55:54,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196464577] [2022-07-22 23:55:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:54,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:55:54,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:55:54,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:55:54,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 23:55:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:55,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-22 23:55:55,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:55:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-07-22 23:55:55,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:55:55,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196464577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:55:55,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:55:55,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 25 [2022-07-22 23:55:55,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087812198] [2022-07-22 23:55:55,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:55:55,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:55:55,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:55:55,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:55:55,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-07-22 23:55:55,493 INFO L87 Difference]: Start difference. First operand 22968 states and 30359 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-22 23:55:56,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:55:56,914 INFO L93 Difference]: Finished difference Result 34638 states and 45789 transitions. [2022-07-22 23:55:56,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:55:56,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 250 [2022-07-22 23:55:56,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:55:56,950 INFO L225 Difference]: With dead ends: 34638 [2022-07-22 23:55:56,950 INFO L226 Difference]: Without dead ends: 11703 [2022-07-22 23:55:57,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2022-07-22 23:55:57,069 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 17 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:55:57,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2981 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 23:55:57,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2022-07-22 23:55:57,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11550. [2022-07-22 23:55:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 8488 states have (on average 1.2826343072573045) internal successors, (10887), 8656 states have internal predecessors, (10887), 2013 states have call successors, (2013), 919 states have call predecessors, (2013), 1048 states have return successors, (2383), 2114 states have call predecessors, (2383), 2012 states have call successors, (2383) [2022-07-22 23:55:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 15283 transitions. [2022-07-22 23:55:57,629 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 15283 transitions. Word has length 250 [2022-07-22 23:55:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:55:57,629 INFO L495 AbstractCegarLoop]: Abstraction has 11550 states and 15283 transitions. [2022-07-22 23:55:57,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-22 23:55:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 15283 transitions. [2022-07-22 23:55:57,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-22 23:55:57,640 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:55:57,640 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:55:57,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 23:55:57,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:55:57,868 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:55:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:55:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 784756124, now seen corresponding path program 1 times [2022-07-22 23:55:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:55:57,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089374093] [2022-07-22 23:55:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:55:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:55:57,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:55:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:55:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:55:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:55:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:55:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:55:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:55:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:55:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:55:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:55:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:55:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:55:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:55:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:55:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:55:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:55:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:55:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:55:58,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:55:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:59,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 23:55:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:59,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:55:59,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:55:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:56:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:00,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:00,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:00,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-22 23:56:00,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:00,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089374093] [2022-07-22 23:56:00,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089374093] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:00,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353251894] [2022-07-22 23:56:00,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:00,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:00,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:00,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:56:00,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 23:56:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:01,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-22 23:56:01,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-07-22 23:56:01,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:56:01,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353251894] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:56:01,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:56:01,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 23 [2022-07-22 23:56:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282467656] [2022-07-22 23:56:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:56:01,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:56:01,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:56:01,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:56:01,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-07-22 23:56:01,313 INFO L87 Difference]: Start difference. First operand 11550 states and 15283 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-22 23:56:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:01,814 INFO L93 Difference]: Finished difference Result 23027 states and 30724 transitions. [2022-07-22 23:56:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:56:01,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 250 [2022-07-22 23:56:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:01,842 INFO L225 Difference]: With dead ends: 23027 [2022-07-22 23:56:01,842 INFO L226 Difference]: Without dead ends: 11537 [2022-07-22 23:56:01,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 307 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-07-22 23:56:01,861 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 2 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:01,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3953 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:56:01,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11537 states. [2022-07-22 23:56:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11537 to 11487. [2022-07-22 23:56:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11487 states, 8425 states have (on average 1.2781008902077151) internal successors, (10768), 8586 states have internal predecessors, (10768), 2013 states have call successors, (2013), 919 states have call predecessors, (2013), 1048 states have return successors, (2370), 2121 states have call predecessors, (2370), 2012 states have call successors, (2370) [2022-07-22 23:56:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11487 states to 11487 states and 15151 transitions. [2022-07-22 23:56:02,274 INFO L78 Accepts]: Start accepts. Automaton has 11487 states and 15151 transitions. Word has length 250 [2022-07-22 23:56:02,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:02,275 INFO L495 AbstractCegarLoop]: Abstraction has 11487 states and 15151 transitions. [2022-07-22 23:56:02,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-22 23:56:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 11487 states and 15151 transitions. [2022-07-22 23:56:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-22 23:56:02,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:02,283 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:02,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-22 23:56:02,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:02,484 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:02,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:02,484 INFO L85 PathProgramCache]: Analyzing trace with hash 576081665, now seen corresponding path program 1 times [2022-07-22 23:56:02,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:56:02,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172038146] [2022-07-22 23:56:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:02,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:56:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:56:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:56:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:56:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:56:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:56:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:56:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:56:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:56:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:56:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:56:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:56:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:56:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:56:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:56:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:56:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:56:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:56:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:56:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:02,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 23:56:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:56:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:56:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,065 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-22 23:56:03,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:03,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172038146] [2022-07-22 23:56:03,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172038146] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:03,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610477514] [2022-07-22 23:56:03,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:03,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:03,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:56:03,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 23:56:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:03,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-22 23:56:03,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:04,083 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 88 proven. 8 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-07-22 23:56:04,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:56:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-22 23:56:04,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610477514] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:04,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:56:04,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 18 [2022-07-22 23:56:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56675546] [2022-07-22 23:56:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:56:04,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 23:56:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:56:04,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 23:56:04,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-07-22 23:56:04,890 INFO L87 Difference]: Start difference. First operand 11487 states and 15151 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-22 23:56:06,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:56:13,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:13,599 INFO L93 Difference]: Finished difference Result 32235 states and 45440 transitions. [2022-07-22 23:56:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 23:56:13,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 258 [2022-07-22 23:56:13,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:13,716 INFO L225 Difference]: With dead ends: 32235 [2022-07-22 23:56:13,716 INFO L226 Difference]: Without dead ends: 24365 [2022-07-22 23:56:13,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 564 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=685, Unknown=0, NotChecked=0, Total=812 [2022-07-22 23:56:13,757 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 5234 mSDsluCounter, 6026 mSDsCounter, 0 mSdLazyCounter, 4928 mSolverCounterSat, 2322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5318 SdHoareTripleChecker+Valid, 7948 SdHoareTripleChecker+Invalid, 7250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2322 IncrementalHoareTripleChecker+Valid, 4928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:13,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5318 Valid, 7948 Invalid, 7250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2322 Valid, 4928 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-22 23:56:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24365 states. [2022-07-22 23:56:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24365 to 16557. [2022-07-22 23:56:14,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16557 states, 12054 states have (on average 1.271445163431226) internal successors, (15326), 12362 states have internal predecessors, (15326), 3008 states have call successors, (3008), 1224 states have call predecessors, (3008), 1494 states have return successors, (3720), 3208 states have call predecessors, (3720), 3007 states have call successors, (3720) [2022-07-22 23:56:14,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16557 states to 16557 states and 22054 transitions. [2022-07-22 23:56:14,898 INFO L78 Accepts]: Start accepts. Automaton has 16557 states and 22054 transitions. Word has length 258 [2022-07-22 23:56:14,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:14,899 INFO L495 AbstractCegarLoop]: Abstraction has 16557 states and 22054 transitions. [2022-07-22 23:56:14,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-22 23:56:14,899 INFO L276 IsEmpty]: Start isEmpty. Operand 16557 states and 22054 transitions. [2022-07-22 23:56:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-07-22 23:56:14,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:14,910 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:14,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:56:15,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 23:56:15,111 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:15,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:15,112 INFO L85 PathProgramCache]: Analyzing trace with hash 491601537, now seen corresponding path program 1 times [2022-07-22 23:56:15,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:56:15,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033318859] [2022-07-22 23:56:15,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:15,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:56:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:56:15,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:56:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:56:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:56:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:56:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:56:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:56:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:56:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:56:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:56:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:56:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:56:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:56:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:56:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:56:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:56:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:56:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:56:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-22 23:56:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:56:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-22 23:56:15,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:15,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033318859] [2022-07-22 23:56:15,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033318859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:56:15,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:56:15,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 23:56:15,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666295568] [2022-07-22 23:56:15,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:56:15,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 23:56:15,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:56:15,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 23:56:15,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:56:15,792 INFO L87 Difference]: Start difference. First operand 16557 states and 22054 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 8 states have internal predecessors, (127), 5 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-22 23:56:17,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:56:19,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:56:22,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:56:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:30,409 INFO L93 Difference]: Finished difference Result 38610 states and 51902 transitions. [2022-07-22 23:56:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 23:56:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 8 states have internal predecessors, (127), 5 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) Word has length 247 [2022-07-22 23:56:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:30,524 INFO L225 Difference]: With dead ends: 38610 [2022-07-22 23:56:30,525 INFO L226 Difference]: Without dead ends: 22113 [2022-07-22 23:56:30,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2022-07-22 23:56:30,580 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 2090 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 4875 mSolverCounterSat, 1282 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 6159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1282 IncrementalHoareTripleChecker+Valid, 4875 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:30,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 4157 Invalid, 6159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1282 Valid, 4875 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2022-07-22 23:56:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22113 states. [2022-07-22 23:56:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22113 to 18006. [2022-07-22 23:56:31,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18006 states, 12999 states have (on average 1.260327717516732) internal successors, (16383), 13349 states have internal predecessors, (16383), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1725 states have return successors, (4091), 3495 states have call predecessors, (4091), 3280 states have call successors, (4091) [2022-07-22 23:56:31,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18006 states to 18006 states and 23755 transitions. [2022-07-22 23:56:31,600 INFO L78 Accepts]: Start accepts. Automaton has 18006 states and 23755 transitions. Word has length 247 [2022-07-22 23:56:31,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:31,601 INFO L495 AbstractCegarLoop]: Abstraction has 18006 states and 23755 transitions. [2022-07-22 23:56:31,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 8 states have internal predecessors, (127), 5 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-22 23:56:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18006 states and 23755 transitions. [2022-07-22 23:56:31,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-22 23:56:31,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:31,613 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:31,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 23:56:31,614 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:31,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:31,614 INFO L85 PathProgramCache]: Analyzing trace with hash -484872815, now seen corresponding path program 1 times [2022-07-22 23:56:31,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:56:31,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021229613] [2022-07-22 23:56:31,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:31,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:56:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:56:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:56:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:56:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:56:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:56:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:56:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:56:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:56:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:56:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:56:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:56:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:56:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-22 23:56:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:56:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-22 23:56:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:56:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:56:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:56:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 23:56:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:56:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:56:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,151 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-07-22 23:56:32,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:32,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021229613] [2022-07-22 23:56:32,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021229613] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:32,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385591395] [2022-07-22 23:56:32,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:32,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:32,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:32,156 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:56:32,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 23:56:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:32,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:56:32,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-22 23:56:33,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:56:33,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385591395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:56:33,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:56:33,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-07-22 23:56:33,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71594136] [2022-07-22 23:56:33,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:56:33,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:56:33,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:56:33,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:56:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:56:33,006 INFO L87 Difference]: Start difference. First operand 18006 states and 23755 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:56:33,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:33,978 INFO L93 Difference]: Finished difference Result 36061 states and 47633 transitions. [2022-07-22 23:56:33,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:56:33,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 257 [2022-07-22 23:56:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:34,051 INFO L225 Difference]: With dead ends: 36061 [2022-07-22 23:56:34,051 INFO L226 Difference]: Without dead ends: 18035 [2022-07-22 23:56:34,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:56:34,101 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 2 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:34,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2973 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:56:34,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18035 states. [2022-07-22 23:56:34,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18035 to 18035. [2022-07-22 23:56:34,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18035 states, 13028 states have (on average 1.2597482345716917) internal successors, (16412), 13378 states have internal predecessors, (16412), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1725 states have return successors, (4091), 3495 states have call predecessors, (4091), 3280 states have call successors, (4091) [2022-07-22 23:56:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18035 states to 18035 states and 23784 transitions. [2022-07-22 23:56:34,915 INFO L78 Accepts]: Start accepts. Automaton has 18035 states and 23784 transitions. Word has length 257 [2022-07-22 23:56:34,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:34,915 INFO L495 AbstractCegarLoop]: Abstraction has 18035 states and 23784 transitions. [2022-07-22 23:56:34,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-22 23:56:34,916 INFO L276 IsEmpty]: Start isEmpty. Operand 18035 states and 23784 transitions. [2022-07-22 23:56:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-22 23:56:34,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:34,925 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:34,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:56:35,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 23:56:35,126 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:35,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:35,127 INFO L85 PathProgramCache]: Analyzing trace with hash 822016599, now seen corresponding path program 1 times [2022-07-22 23:56:35,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:56:35,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558125973] [2022-07-22 23:56:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:35,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:56:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:56:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:56:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:56:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:56:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:56:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:56:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:56:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:56:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:56:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:56:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:56:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:56:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 23:56:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-22 23:56:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-22 23:56:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 23:56:35,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:35,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:56:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:56:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 23:56:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:56:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:56:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:35,858 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-22 23:56:35,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:35,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558125973] [2022-07-22 23:56:35,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558125973] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:35,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020491544] [2022-07-22 23:56:35,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:35,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:35,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:35,860 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:56:35,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 23:56:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:36,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 23:56:36,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 139 proven. 1 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-07-22 23:56:36,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:56:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-22 23:56:37,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020491544] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:56:37,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 23:56:37,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2022-07-22 23:56:37,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026198291] [2022-07-22 23:56:37,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 23:56:37,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 23:56:37,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:56:37,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 23:56:37,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:56:37,156 INFO L87 Difference]: Start difference. First operand 18035 states and 23784 transitions. Second operand has 14 states, 14 states have (on average 16.357142857142858) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (77), 6 states have call predecessors, (77), 5 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-22 23:56:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:43,480 INFO L93 Difference]: Finished difference Result 38848 states and 51933 transitions. [2022-07-22 23:56:43,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 23:56:43,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.357142857142858) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (77), 6 states have call predecessors, (77), 5 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 259 [2022-07-22 23:56:43,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:43,581 INFO L225 Difference]: With dead ends: 38848 [2022-07-22 23:56:43,581 INFO L226 Difference]: Without dead ends: 20791 [2022-07-22 23:56:43,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 572 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-07-22 23:56:43,643 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 460 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:43,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 3426 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-22 23:56:43,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20791 states. [2022-07-22 23:56:44,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20791 to 18066. [2022-07-22 23:56:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18066 states, 13059 states have (on average 1.259131633356306) internal successors, (16443), 13409 states have internal predecessors, (16443), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1725 states have return successors, (4091), 3495 states have call predecessors, (4091), 3280 states have call successors, (4091) [2022-07-22 23:56:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18066 states to 18066 states and 23815 transitions. [2022-07-22 23:56:44,790 INFO L78 Accepts]: Start accepts. Automaton has 18066 states and 23815 transitions. Word has length 259 [2022-07-22 23:56:44,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:44,791 INFO L495 AbstractCegarLoop]: Abstraction has 18066 states and 23815 transitions. [2022-07-22 23:56:44,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.357142857142858) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (77), 6 states have call predecessors, (77), 5 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-22 23:56:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 18066 states and 23815 transitions. [2022-07-22 23:56:44,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-22 23:56:44,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:44,800 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 8, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:44,823 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 23:56:45,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:45,001 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:45,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1297530769, now seen corresponding path program 2 times [2022-07-22 23:56:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:56:45,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397058604] [2022-07-22 23:56:45,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:45,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:56:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:56:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:56:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:56:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:56:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:56:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:56:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:56:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:56:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:56:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:56:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:56:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:56:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:56:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 23:56:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 23:56:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 23:56:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:56:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:56:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 23:56:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:56:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:47,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:47,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:56:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:48,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:48,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-07-22 23:56:48,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397058604] [2022-07-22 23:56:48,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397058604] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [70106210] [2022-07-22 23:56:48,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:56:48,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:48,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:48,036 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:56:48,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 23:56:48,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:56:48,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:56:48,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-22 23:56:48,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-22 23:56:49,584 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:56:49,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [70106210] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:56:49,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:56:49,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [28] total 38 [2022-07-22 23:56:49,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760106022] [2022-07-22 23:56:49,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:56:49,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-22 23:56:49,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:56:49,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-22 23:56:49,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1310, Unknown=0, NotChecked=0, Total=1406 [2022-07-22 23:56:49,586 INFO L87 Difference]: Start difference. First operand 18066 states and 23815 transitions. Second operand has 14 states, 13 states have (on average 11.076923076923077) internal successors, (144), 11 states have internal predecessors, (144), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-22 23:56:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:56:50,858 INFO L93 Difference]: Finished difference Result 38017 states and 51396 transitions. [2022-07-22 23:56:50,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 23:56:50,859 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.076923076923077) internal successors, (144), 11 states have internal predecessors, (144), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) Word has length 265 [2022-07-22 23:56:50,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:56:51,051 INFO L225 Difference]: With dead ends: 38017 [2022-07-22 23:56:51,051 INFO L226 Difference]: Without dead ends: 20015 [2022-07-22 23:56:51,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=1759, Unknown=0, NotChecked=0, Total=1892 [2022-07-22 23:56:51,082 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 27 mSDsluCounter, 11323 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12360 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:56:51,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12360 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:56:51,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20015 states. [2022-07-22 23:56:51,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20015 to 18388. [2022-07-22 23:56:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18388 states, 13346 states have (on average 1.2509366102202908) internal successors, (16695), 13647 states have internal predecessors, (16695), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1760 states have return successors, (4175), 3579 states have call predecessors, (4175), 3280 states have call successors, (4175) [2022-07-22 23:56:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18388 states to 18388 states and 24151 transitions. [2022-07-22 23:56:51,935 INFO L78 Accepts]: Start accepts. Automaton has 18388 states and 24151 transitions. Word has length 265 [2022-07-22 23:56:51,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:56:51,936 INFO L495 AbstractCegarLoop]: Abstraction has 18388 states and 24151 transitions. [2022-07-22 23:56:51,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.076923076923077) internal successors, (144), 11 states have internal predecessors, (144), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-22 23:56:51,936 INFO L276 IsEmpty]: Start isEmpty. Operand 18388 states and 24151 transitions. [2022-07-22 23:56:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-22 23:56:51,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:56:51,945 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 8, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:56:51,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:56:52,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-22 23:56:52,145 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:56:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:56:52,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1093437602, now seen corresponding path program 1 times [2022-07-22 23:56:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:56:52,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877789918] [2022-07-22 23:56:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:52,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:56:52,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:56:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:56:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:56:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:56:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:56:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:56:52,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:56:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:56:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:56:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:56:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-22 23:56:52,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-22 23:56:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:56:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 23:56:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 23:56:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:52,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-22 23:56:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-22 23:56:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 23:56:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 23:56:53,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:56:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-22 23:56:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:56:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:56:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:56:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:56:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-07-22 23:56:54,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:56:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877789918] [2022-07-22 23:56:54,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877789918] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:56:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364899253] [2022-07-22 23:56:54,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:56:54,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:56:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:56:54,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:56:54,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 23:56:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:56:56,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 141 conjunts are in the unsatisfiable core [2022-07-22 23:56:56,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:56:57,037 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-22 23:56:57,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-22 23:56:57,357 INFO L356 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-07-22 23:56:57,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2022-07-22 23:56:57,375 INFO L356 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-07-22 23:56:57,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2022-07-22 23:57:05,102 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-22 23:57:05,102 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 3 [2022-07-22 23:57:05,111 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-22 23:57:05,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 7 [2022-07-22 23:57:06,003 INFO L356 Elim1Store]: treesize reduction 3, result has 78.6 percent of original size [2022-07-22 23:57:06,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-07-22 23:57:06,145 INFO L356 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2022-07-22 23:57:06,145 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 46 [2022-07-22 23:57:06,158 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-22 23:57:06,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 3 [2022-07-22 23:57:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 118 proven. 10 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-22 23:57:06,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:57:07,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-07-22 23:57:07,218 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 378 [2022-07-22 23:57:08,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-07-22 23:57:08,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 378 [2022-07-22 23:57:09,634 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 23:57:09,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2022-07-22 23:57:09,660 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-22 23:57:09,660 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-07-22 23:57:17,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-07-22 23:57:17,998 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 378 [2022-07-22 23:57:46,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 538 treesize of output 530 [2022-07-22 23:57:46,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1754 treesize of output 1690