./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.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 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 12:16:58,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 12:16:58,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 12:16:58,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 12:16:58,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 12:16:58,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 12:16:58,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 12:16:58,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 12:16:58,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 12:16:58,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 12:16:58,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 12:16:58,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 12:16:58,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 12:16:58,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 12:16:58,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 12:16:58,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 12:16:58,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 12:16:58,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 12:16:58,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 12:16:58,795 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 12:16:58,796 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 12:16:58,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 12:16:58,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 12:16:58,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 12:16:58,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 12:16:58,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 12:16:58,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 12:16:58,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 12:16:58,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 12:16:58,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 12:16:58,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 12:16:58,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 12:16:58,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 12:16:58,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 12:16:58,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 12:16:58,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 12:16:58,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 12:16:58,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 12:16:58,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 12:16:58,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 12:16:58,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 12:16:58,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 12:16:58,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 12:16:58,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 12:16:58,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 12:16:58,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 12:16:58,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 12:16:58,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 12:16:58,867 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 12:16:58,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 12:16:58,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 12:16:58,868 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 12:16:58,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 12:16:58,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 12:16:58,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 12:16:58,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 12:16:58,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 12:16:58,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 12:16:58,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 12:16:58,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 12:16:58,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 12:16:58,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 12:16:58,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 12:16:58,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 12:16:58,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:16:58,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 12:16:58,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 12:16:58,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 12:16:58,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 12:16:58,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 12:16:58,883 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 12:16:58,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 12:16:58,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 12:16:58,884 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2022-07-21 12:16:59,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 12:16:59,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 12:16:59,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 12:16:59,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 12:16:59,230 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 12:16:59,231 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-21 12:16:59,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae53ed8a/f158d41666aa4560bb549cb473e05fc7/FLAG37dde8282 [2022-07-21 12:17:00,138 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 12:17:00,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-21 12:17:00,188 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae53ed8a/f158d41666aa4560bb549cb473e05fc7/FLAG37dde8282 [2022-07-21 12:17:00,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ae53ed8a/f158d41666aa4560bb549cb473e05fc7 [2022-07-21 12:17:00,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 12:17:00,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 12:17:00,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 12:17:00,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 12:17:00,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 12:17:00,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:17:00" (1/1) ... [2022-07-21 12:17:00,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68dc45ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:00, skipping insertion in model container [2022-07-21 12:17:00,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:17:00" (1/1) ... [2022-07-21 12:17:00,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 12:17:00,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 12:17:02,953 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2022-07-21 12:17:03,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:17:03,353 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 12:17:03,731 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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i[277952,277965] [2022-07-21 12:17:03,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 12:17:03,836 INFO L208 MainTranslator]: Completed translation [2022-07-21 12:17:03,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03 WrapperNode [2022-07-21 12:17:03,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 12:17:03,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 12:17:03,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 12:17:03,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 12:17:03,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:03,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,159 INFO L137 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 6022 [2022-07-21 12:17:04,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 12:17:04,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 12:17:04,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 12:17:04,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 12:17:04,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 12:17:04,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 12:17:04,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 12:17:04,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 12:17:04,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (1/1) ... [2022-07-21 12:17:04,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 12:17:04,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 12:17:04,453 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) [2022-07-21 12:17:04,461 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 [2022-07-21 12:17:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 12:17:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 12:17:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 12:17:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 12:17:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-07-21 12:17:04,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-07-21 12:17:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-07-21 12:17:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-07-21 12:17:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2022-07-21 12:17:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2022-07-21 12:17:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 12:17:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 12:17:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2022-07-21 12:17:04,500 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2022-07-21 12:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-21 12:17:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-21 12:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-07-21 12:17:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-07-21 12:17:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 12:17:04,501 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 12:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 12:17:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 12:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2022-07-21 12:17:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2022-07-21 12:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2022-07-21 12:17:04,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2022-07-21 12:17:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-21 12:17:04,503 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-21 12:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2022-07-21 12:17:04,503 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2022-07-21 12:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 12:17:04,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 12:17:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 12:17:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 12:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2022-07-21 12:17:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2022-07-21 12:17:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 12:17:04,504 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 12:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 12:17:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 12:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 12:17:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 12:17:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2022-07-21 12:17:04,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2022-07-21 12:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2022-07-21 12:17:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2022-07-21 12:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2022-07-21 12:17:04,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2022-07-21 12:17:04,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 12:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 12:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-07-21 12:17:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-07-21 12:17:04,507 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2022-07-21 12:17:04,507 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2022-07-21 12:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-21 12:17:04,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-21 12:17:04,508 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 12:17:04,509 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 12:17:04,509 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2022-07-21 12:17:04,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2022-07-21 12:17:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2022-07-21 12:17:04,511 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2022-07-21 12:17:04,511 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-21 12:17:04,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-21 12:17:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 12:17:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 12:17:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2022-07-21 12:17:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2022-07-21 12:17:04,512 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2022-07-21 12:17:04,512 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2022-07-21 12:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-21 12:17:04,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-21 12:17:04,513 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 12:17:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 12:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 12:17:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 12:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2022-07-21 12:17:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2022-07-21 12:17:04,514 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2022-07-21 12:17:04,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2022-07-21 12:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-21 12:17:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-21 12:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-07-21 12:17:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-07-21 12:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 12:17:04,515 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2022-07-21 12:17:04,515 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2022-07-21 12:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 12:17:04,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 12:17:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2022-07-21 12:17:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2022-07-21 12:17:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 12:17:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 12:17:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 12:17:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 12:17:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 12:17:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-21 12:17:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-21 12:17:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2022-07-21 12:17:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2022-07-21 12:17:04,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2022-07-21 12:17:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2022-07-21 12:17:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 12:17:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 12:17:04,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 12:17:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 12:17:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 12:17:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 12:17:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 12:17:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 12:17:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 12:17:04,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 12:17:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 12:17:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 12:17:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 12:17:04,522 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2022-07-21 12:17:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2022-07-21 12:17:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-21 12:17:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-21 12:17:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-07-21 12:17:04,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-07-21 12:17:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2022-07-21 12:17:04,526 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2022-07-21 12:17:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2022-07-21 12:17:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2022-07-21 12:17:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-07-21 12:17:04,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-07-21 12:17:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-07-21 12:17:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-07-21 12:17:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 12:17:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 12:17:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 12:17:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 12:17:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2022-07-21 12:17:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2022-07-21 12:17:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2022-07-21 12:17:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2022-07-21 12:17:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-21 12:17:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-21 12:17:05,373 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 12:17:05,378 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 12:17:07,734 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 12:17:17,028 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 12:17:17,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 12:17:17,053 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 12:17:17,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:17:17 BoogieIcfgContainer [2022-07-21 12:17:17,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 12:17:17,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 12:17:17,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 12:17:17,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 12:17:17,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:17:00" (1/3) ... [2022-07-21 12:17:17,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762c2889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:17:17, skipping insertion in model container [2022-07-21 12:17:17,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:17:03" (2/3) ... [2022-07-21 12:17:17,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762c2889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:17:17, skipping insertion in model container [2022-07-21 12:17:17,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:17:17" (3/3) ... [2022-07-21 12:17:17,079 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-21 12:17:17,091 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 12:17:17,107 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 12:17:17,221 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 12:17:17,231 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@58c88879, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1ea7280c [2022-07-21 12:17:17,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 12:17:17,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 1383 states, 1052 states have (on average 1.435361216730038) internal successors, (1510), 1072 states have internal predecessors, (1510), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) [2022-07-21 12:17:17,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 12:17:17,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:17,262 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:17:17,264 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash -806038929, now seen corresponding path program 1 times [2022-07-21 12:17:17,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:17,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231241059] [2022-07-21 12:17:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:17:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:17:17,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:17:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:17,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:17:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:17:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:17:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:17:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:17:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 12:17:18,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:18,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231241059] [2022-07-21 12:17:18,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231241059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:18,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:18,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 12:17:18,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067830222] [2022-07-21 12:17:18,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:18,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 12:17:18,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:18,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 12:17:18,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 12:17:18,188 INFO L87 Difference]: Start difference. First operand has 1383 states, 1052 states have (on average 1.435361216730038) internal successors, (1510), 1072 states have internal predecessors, (1510), 267 states have call successors, (267), 63 states have call predecessors, (267), 62 states have return successors, (263), 262 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 12:17:20,623 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 [] [2022-07-21 12:17:22,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:24,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:27,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:29,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:32,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:35,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:37,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:38,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:38,898 INFO L93 Difference]: Finished difference Result 2812 states and 4246 transitions. [2022-07-21 12:17:38,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 12:17:38,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-07-21 12:17:38,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:38,923 INFO L225 Difference]: With dead ends: 2812 [2022-07-21 12:17:38,923 INFO L226 Difference]: Without dead ends: 1421 [2022-07-21 12:17:38,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:38,944 INFO L413 NwaCegarLoop]: 1947 mSDtfsCounter, 522 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 638 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 1824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:38,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 3825 Invalid, 1824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 1181 Invalid, 5 Unknown, 0 Unchecked, 20.4s Time] [2022-07-21 12:17:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-07-21 12:17:39,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1370. [2022-07-21 12:17:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1045 states have (on average 1.4095693779904306) internal successors, (1473), 1059 states have internal predecessors, (1473), 263 states have call successors, (263), 62 states have call predecessors, (263), 61 states have return successors, (252), 251 states have call predecessors, (252), 252 states have call successors, (252) [2022-07-21 12:17:39,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1988 transitions. [2022-07-21 12:17:39,123 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1988 transitions. Word has length 119 [2022-07-21 12:17:39,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:39,124 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 1988 transitions. [2022-07-21 12:17:39,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-21 12:17:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1988 transitions. [2022-07-21 12:17:39,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 12:17:39,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:39,134 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:17:39,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 12:17:39,135 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:39,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:39,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1515762989, now seen corresponding path program 1 times [2022-07-21 12:17:39,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:39,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675107702] [2022-07-21 12:17:39,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:39,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:17:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:17:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:17:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:17:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:17:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:17:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:17:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:17:39,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:39,569 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-21 12:17:39,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:39,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675107702] [2022-07-21 12:17:39,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675107702] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:39,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:39,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:17:39,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096956681] [2022-07-21 12:17:39,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:39,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:17:39,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:39,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:17:39,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:39,573 INFO L87 Difference]: Start difference. First operand 1370 states and 1988 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 12:17:41,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:43,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:46,114 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:48,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:51,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:54,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:17:54,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:17:54,479 INFO L93 Difference]: Finished difference Result 2871 states and 4167 transitions. [2022-07-21 12:17:54,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:17:54,480 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 119 [2022-07-21 12:17:54,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:17:54,491 INFO L225 Difference]: With dead ends: 2871 [2022-07-21 12:17:54,491 INFO L226 Difference]: Without dead ends: 1527 [2022-07-21 12:17:54,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:17:54,499 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 979 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 1005 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 4367 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-21 12:17:54,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 4367 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 1159 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2022-07-21 12:17:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2022-07-21 12:17:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1455. [2022-07-21 12:17:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1109 states have (on average 1.4021641118124437) internal successors, (1555), 1124 states have internal predecessors, (1555), 273 states have call successors, (273), 73 states have call predecessors, (273), 72 states have return successors, (262), 260 states have call predecessors, (262), 262 states have call successors, (262) [2022-07-21 12:17:54,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2090 transitions. [2022-07-21 12:17:54,556 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2090 transitions. Word has length 119 [2022-07-21 12:17:54,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:17:54,557 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2090 transitions. [2022-07-21 12:17:54,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-07-21 12:17:54,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2090 transitions. [2022-07-21 12:17:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-21 12:17:54,560 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:17:54,560 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 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] [2022-07-21 12:17:54,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 12:17:54,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:17:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:17:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash -291305680, now seen corresponding path program 1 times [2022-07-21 12:17:54,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:17:54,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822093704] [2022-07-21 12:17:54,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:17:54,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:17:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:17:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:17:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:17:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:17:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:17:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:17:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:17:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:17:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:17:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:17:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:17:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 12:17:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 12:17:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 12:17:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 12:17:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:17:54,940 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-07-21 12:17:54,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:17:54,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822093704] [2022-07-21 12:17:54,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822093704] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:17:54,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:17:54,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:17:54,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580298375] [2022-07-21 12:17:54,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:17:54,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:17:54,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:17:54,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:17:54,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:17:54,944 INFO L87 Difference]: Start difference. First operand 1455 states and 2090 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:17:58,188 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:00,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:03,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:05,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:09,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:12,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:15,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:15,635 INFO L93 Difference]: Finished difference Result 4059 states and 5868 transitions. [2022-07-21 12:18:15,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:18:15,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2022-07-21 12:18:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:15,650 INFO L225 Difference]: With dead ends: 4059 [2022-07-21 12:18:15,650 INFO L226 Difference]: Without dead ends: 2644 [2022-07-21 12:18:15,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:18:15,657 INFO L413 NwaCegarLoop]: 2162 mSDtfsCounter, 2359 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 2163 mSolverCounterSat, 1244 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 5496 SdHoareTripleChecker+Invalid, 3413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1244 IncrementalHoareTripleChecker+Valid, 2163 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:15,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 5496 Invalid, 3413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1244 Valid, 2163 Invalid, 6 Unknown, 0 Unchecked, 20.4s Time] [2022-07-21 12:18:15,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2022-07-21 12:18:15,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2526. [2022-07-21 12:18:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 1939 states have (on average 1.400206291903043) internal successors, (2715), 1957 states have internal predecessors, (2715), 459 states have call successors, (459), 128 states have call predecessors, (459), 127 states have return successors, (448), 446 states have call predecessors, (448), 448 states have call successors, (448) [2022-07-21 12:18:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3622 transitions. [2022-07-21 12:18:15,745 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3622 transitions. Word has length 138 [2022-07-21 12:18:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:15,747 INFO L495 AbstractCegarLoop]: Abstraction has 2526 states and 3622 transitions. [2022-07-21 12:18:15,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-21 12:18:15,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3622 transitions. [2022-07-21 12:18:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 12:18:15,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:15,753 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:15,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 12:18:15,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:15,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash -139107950, now seen corresponding path program 1 times [2022-07-21 12:18:15,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:15,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049313727] [2022-07-21 12:18:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:15,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:15,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:15,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:15,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:18:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:18:16,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:18:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:18:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:18:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:18:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:18:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:18:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:18:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:16,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:18:16,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:16,138 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:18:16,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:16,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049313727] [2022-07-21 12:18:16,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049313727] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:16,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:16,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:18:16,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273766084] [2022-07-21 12:18:16,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:16,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:18:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:18:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:16,142 INFO L87 Difference]: Start difference. First operand 2526 states and 3622 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:18,472 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 [] [2022-07-21 12:18:20,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:23,692 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:25,785 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:28,898 INFO L93 Difference]: Finished difference Result 2906 states and 4144 transitions. [2022-07-21 12:18:28,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:18:28,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 163 [2022-07-21 12:18:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:28,917 INFO L225 Difference]: With dead ends: 2906 [2022-07-21 12:18:28,918 INFO L226 Difference]: Without dead ends: 2903 [2022-07-21 12:18:28,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:18:28,921 INFO L413 NwaCegarLoop]: 2047 mSDtfsCounter, 2315 mSDsluCounter, 1457 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 1226 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1226 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:28,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 3504 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1226 Valid, 879 Invalid, 4 Unknown, 0 Unchecked, 12.6s Time] [2022-07-21 12:18:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2903 states. [2022-07-21 12:18:28,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2903 to 2760. [2022-07-21 12:18:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2105 states have (on average 1.3890736342042755) internal successors, (2924), 2126 states have internal predecessors, (2924), 495 states have call successors, (495), 160 states have call predecessors, (495), 159 states have return successors, (485), 482 states have call predecessors, (485), 485 states have call successors, (485) [2022-07-21 12:18:29,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3904 transitions. [2022-07-21 12:18:29,016 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3904 transitions. Word has length 163 [2022-07-21 12:18:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:29,016 INFO L495 AbstractCegarLoop]: Abstraction has 2760 states and 3904 transitions. [2022-07-21 12:18:29,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:29,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3904 transitions. [2022-07-21 12:18:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-21 12:18:29,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:29,019 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:29,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 12:18:29,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:29,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:29,020 INFO L85 PathProgramCache]: Analyzing trace with hash -18690541, now seen corresponding path program 1 times [2022-07-21 12:18:29,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:29,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986044956] [2022-07-21 12:18:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:29,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:18:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:18:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:18:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:18:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:18:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:18:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:18:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:18:29,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:18:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:18:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:18:29,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:29,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986044956] [2022-07-21 12:18:29,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986044956] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:29,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:29,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:18:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957281326] [2022-07-21 12:18:29,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:29,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:18:29,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:29,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:18:29,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:29,353 INFO L87 Difference]: Start difference. First operand 2760 states and 3904 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:30,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:33,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:36,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:39,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:39,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:39,508 INFO L93 Difference]: Finished difference Result 2901 states and 4139 transitions. [2022-07-21 12:18:39,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 12:18:39,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 164 [2022-07-21 12:18:39,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:39,521 INFO L225 Difference]: With dead ends: 2901 [2022-07-21 12:18:39,521 INFO L226 Difference]: Without dead ends: 2898 [2022-07-21 12:18:39,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:18:39,523 INFO L413 NwaCegarLoop]: 1931 mSDtfsCounter, 2458 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1052 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1052 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:39,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 2909 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1052 Valid, 612 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-07-21 12:18:39,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2022-07-21 12:18:39,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2759. [2022-07-21 12:18:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 2105 states have (on average 1.3885985748218528) internal successors, (2923), 2125 states have internal predecessors, (2923), 494 states have call successors, (494), 160 states have call predecessors, (494), 159 states have return successors, (485), 482 states have call predecessors, (485), 485 states have call successors, (485) [2022-07-21 12:18:39,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 3902 transitions. [2022-07-21 12:18:39,604 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 3902 transitions. Word has length 164 [2022-07-21 12:18:39,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:39,605 INFO L495 AbstractCegarLoop]: Abstraction has 2759 states and 3902 transitions. [2022-07-21 12:18:39,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:39,605 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 3902 transitions. [2022-07-21 12:18:39,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-21 12:18:39,607 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:39,607 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:39,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 12:18:39,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:39,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:39,608 INFO L85 PathProgramCache]: Analyzing trace with hash -580713291, now seen corresponding path program 1 times [2022-07-21 12:18:39,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:39,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349418833] [2022-07-21 12:18:39,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:39,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:39,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:18:39,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:18:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:18:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:18:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:18:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:18:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:18:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:18:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:18:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:18:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:39,897 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:18:39,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:39,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349418833] [2022-07-21 12:18:39,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349418833] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:39,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:39,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:18:39,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164840584] [2022-07-21 12:18:39,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:39,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:18:39,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:39,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:18:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:39,900 INFO L87 Difference]: Start difference. First operand 2759 states and 3902 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:41,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:44,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:46,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:49,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:51,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:54,824 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 [] [2022-07-21 12:18:55,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:18:55,039 INFO L93 Difference]: Finished difference Result 2934 states and 4167 transitions. [2022-07-21 12:18:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:18:55,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 165 [2022-07-21 12:18:55,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:18:55,052 INFO L225 Difference]: With dead ends: 2934 [2022-07-21 12:18:55,053 INFO L226 Difference]: Without dead ends: 2930 [2022-07-21 12:18:55,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:18:55,055 INFO L413 NwaCegarLoop]: 1932 mSDtfsCounter, 1013 mSDsluCounter, 2287 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 968 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 4219 SdHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 968 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-07-21 12:18:55,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 4219 Invalid, 2060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [968 Valid, 1087 Invalid, 5 Unknown, 0 Unchecked, 15.0s Time] [2022-07-21 12:18:55,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2022-07-21 12:18:55,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2787. [2022-07-21 12:18:55,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2124 states have (on average 1.384180790960452) internal successors, (2940), 2142 states have internal predecessors, (2940), 496 states have call successors, (496), 167 states have call predecessors, (496), 166 states have return successors, (489), 486 states have call predecessors, (489), 489 states have call successors, (489) [2022-07-21 12:18:55,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3925 transitions. [2022-07-21 12:18:55,147 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3925 transitions. Word has length 165 [2022-07-21 12:18:55,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:18:55,148 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 3925 transitions. [2022-07-21 12:18:55,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3925 transitions. [2022-07-21 12:18:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-21 12:18:55,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:18:55,151 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:18:55,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 12:18:55,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:18:55,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:18:55,151 INFO L85 PathProgramCache]: Analyzing trace with hash -823544490, now seen corresponding path program 1 times [2022-07-21 12:18:55,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:18:55,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411661225] [2022-07-21 12:18:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:18:55,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:18:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:18:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:55,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:18:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:18:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:18:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:18:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:18:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:18:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:18:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:18:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:18:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:18:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:18:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:18:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:18:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:18:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:18:55,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:18:55,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411661225] [2022-07-21 12:18:55,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411661225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:18:55,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:18:55,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:18:55,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364268059] [2022-07-21 12:18:55,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:18:55,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:18:55,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:18:55,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:18:55,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:18:55,457 INFO L87 Difference]: Start difference. First operand 2787 states and 3925 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:18:57,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:58,612 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:18:59,639 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:01,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:03,216 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:04,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:07,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:11,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:14,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:17,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:20,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:22,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:23,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:19:23,512 INFO L93 Difference]: Finished difference Result 7911 states and 11270 transitions. [2022-07-21 12:19:23,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:19:23,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 166 [2022-07-21 12:19:23,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:19:23,544 INFO L225 Difference]: With dead ends: 7911 [2022-07-21 12:19:23,545 INFO L226 Difference]: Without dead ends: 5164 [2022-07-21 12:19:23,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:19:23,561 INFO L413 NwaCegarLoop]: 2526 mSDtfsCounter, 2012 mSDsluCounter, 4745 mSDsCounter, 0 mSdLazyCounter, 3046 mSolverCounterSat, 1046 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 7271 SdHoareTripleChecker+Invalid, 4099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1046 IncrementalHoareTripleChecker+Valid, 3046 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:19:23,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 7271 Invalid, 4099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1046 Valid, 3046 Invalid, 7 Unknown, 0 Unchecked, 27.8s Time] [2022-07-21 12:19:23,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5164 states. [2022-07-21 12:19:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5164 to 4925. [2022-07-21 12:19:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4925 states, 3772 states have (on average 1.3830858960763521) internal successors, (5217), 3808 states have internal predecessors, (5217), 865 states have call successors, (865), 294 states have call predecessors, (865), 287 states have return successors, (892), 834 states have call predecessors, (892), 855 states have call successors, (892) [2022-07-21 12:19:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4925 states to 4925 states and 6974 transitions. [2022-07-21 12:19:23,837 INFO L78 Accepts]: Start accepts. Automaton has 4925 states and 6974 transitions. Word has length 166 [2022-07-21 12:19:23,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:19:23,838 INFO L495 AbstractCegarLoop]: Abstraction has 4925 states and 6974 transitions. [2022-07-21 12:19:23,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:19:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4925 states and 6974 transitions. [2022-07-21 12:19:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-21 12:19:23,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:19:23,841 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 12:19:23,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 12:19:23,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:19:23,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:19:23,842 INFO L85 PathProgramCache]: Analyzing trace with hash 238627800, now seen corresponding path program 1 times [2022-07-21 12:19:23,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:19:23,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869535571] [2022-07-21 12:19:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:19:23,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:19:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:23,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:19:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:19:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:19:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:19:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:19:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:19:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:19:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:19:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:19:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:19:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:19:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:19:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:19:24,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:19:24,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869535571] [2022-07-21 12:19:24,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869535571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:19:24,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:19:24,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 12:19:24,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229765835] [2022-07-21 12:19:24,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:19:24,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 12:19:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:19:24,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 12:19:24,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 12:19:24,199 INFO L87 Difference]: Start difference. First operand 4925 states and 6974 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:19:26,628 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 [] [2022-07-21 12:19:29,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:33,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:35,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:38,445 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:40,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:42,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:43,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:19:43,209 INFO L93 Difference]: Finished difference Result 5132 states and 7322 transitions. [2022-07-21 12:19:43,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 12:19:43,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 167 [2022-07-21 12:19:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:19:43,238 INFO L225 Difference]: With dead ends: 5132 [2022-07-21 12:19:43,239 INFO L226 Difference]: Without dead ends: 5105 [2022-07-21 12:19:43,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:19:43,244 INFO L413 NwaCegarLoop]: 2009 mSDtfsCounter, 2040 mSDsluCounter, 2284 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 880 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 4293 SdHoareTripleChecker+Invalid, 2370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-07-21 12:19:43,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 4293 Invalid, 2370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [880 Valid, 1483 Invalid, 7 Unknown, 0 Unchecked, 18.8s Time] [2022-07-21 12:19:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5105 states. [2022-07-21 12:19:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5105 to 4900. [2022-07-21 12:19:43,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4900 states, 3755 states have (on average 1.3829560585885485) internal successors, (5193), 3790 states have internal predecessors, (5193), 860 states have call successors, (860), 291 states have call predecessors, (860), 284 states have return successors, (888), 830 states have call predecessors, (888), 851 states have call successors, (888) [2022-07-21 12:19:43,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4900 states to 4900 states and 6941 transitions. [2022-07-21 12:19:43,496 INFO L78 Accepts]: Start accepts. Automaton has 4900 states and 6941 transitions. Word has length 167 [2022-07-21 12:19:43,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:19:43,497 INFO L495 AbstractCegarLoop]: Abstraction has 4900 states and 6941 transitions. [2022-07-21 12:19:43,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 12:19:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand 4900 states and 6941 transitions. [2022-07-21 12:19:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-21 12:19:43,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:19:43,502 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:19:43,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 12:19:43,503 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:19:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:19:43,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1755941157, now seen corresponding path program 1 times [2022-07-21 12:19:43,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:19:43,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747747465] [2022-07-21 12:19:43,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:19:43,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:19:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:19:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:19:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:19:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:19:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:19:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:19:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:19:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:19:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:19:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:19:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:19:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:19:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:19:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:19:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 12:19:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 12:19:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:19:43,787 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:19:43,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:19:43,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747747465] [2022-07-21 12:19:43,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747747465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:19:43,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:19:43,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 12:19:43,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549579874] [2022-07-21 12:19:43,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:19:43,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 12:19:43,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:19:43,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 12:19:43,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 12:19:43,790 INFO L87 Difference]: Start difference. First operand 4900 states and 6941 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:19:45,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:47,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:49,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:53,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:56,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:19:58,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:01,869 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:05,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:08,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:08,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:20:08,681 INFO L93 Difference]: Finished difference Result 7924 states and 11212 transitions. [2022-07-21 12:20:08,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 12:20:08,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 187 [2022-07-21 12:20:08,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:20:08,695 INFO L225 Difference]: With dead ends: 7924 [2022-07-21 12:20:08,695 INFO L226 Difference]: Without dead ends: 3062 [2022-07-21 12:20:08,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-21 12:20:08,713 INFO L413 NwaCegarLoop]: 1751 mSDtfsCounter, 1790 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 4534 mSolverCounterSat, 968 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 5509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 968 IncrementalHoareTripleChecker+Valid, 4534 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.6s IncrementalHoareTripleChecker+Time [2022-07-21 12:20:08,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2740 Invalid, 5509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [968 Valid, 4534 Invalid, 7 Unknown, 0 Unchecked, 24.6s Time] [2022-07-21 12:20:08,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-07-21 12:20:08,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2928. [2022-07-21 12:20:08,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2230 states have (on average 1.3717488789237668) internal successors, (3059), 2252 states have internal predecessors, (3059), 513 states have call successors, (513), 189 states have call predecessors, (513), 184 states have return successors, (523), 494 states have call predecessors, (523), 504 states have call successors, (523) [2022-07-21 12:20:08,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 4095 transitions. [2022-07-21 12:20:08,809 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 4095 transitions. Word has length 187 [2022-07-21 12:20:08,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:20:08,809 INFO L495 AbstractCegarLoop]: Abstraction has 2928 states and 4095 transitions. [2022-07-21 12:20:08,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 12:20:08,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 4095 transitions. [2022-07-21 12:20:08,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-21 12:20:08,812 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:20:08,812 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:20:08,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 12:20:08,812 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:20:08,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:20:08,813 INFO L85 PathProgramCache]: Analyzing trace with hash -520232844, now seen corresponding path program 1 times [2022-07-21 12:20:08,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:20:08,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711226369] [2022-07-21 12:20:08,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:08,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:20:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:20:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:08,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:08,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:08,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:20:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:20:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:20:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:20:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:20:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:20:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:20:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:20:09,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:20:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:20:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:20:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:20:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 12:20:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 12:20:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-21 12:20:09,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:20:09,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711226369] [2022-07-21 12:20:09,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711226369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:20:09,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:20:09,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 12:20:09,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671326527] [2022-07-21 12:20:09,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:20:09,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 12:20:09,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:20:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 12:20:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-21 12:20:09,168 INFO L87 Difference]: Start difference. First operand 2928 states and 4095 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:20:11,868 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 [] [2022-07-21 12:20:13,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:18,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:20,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:23,029 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:24,656 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:26,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:28,369 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 [] [2022-07-21 12:20:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 12:20:28,925 INFO L93 Difference]: Finished difference Result 3189 states and 4524 transitions. [2022-07-21 12:20:28,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 12:20:28,926 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 194 [2022-07-21 12:20:28,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 12:20:28,942 INFO L225 Difference]: With dead ends: 3189 [2022-07-21 12:20:28,943 INFO L226 Difference]: Without dead ends: 3186 [2022-07-21 12:20:28,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-07-21 12:20:28,945 INFO L413 NwaCegarLoop]: 1891 mSDtfsCounter, 3815 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 3838 mSolverCounterSat, 2434 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3888 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 6277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2434 IncrementalHoareTripleChecker+Valid, 3838 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2022-07-21 12:20:28,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3888 Valid, 2743 Invalid, 6277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2434 Valid, 3838 Invalid, 5 Unknown, 0 Unchecked, 19.4s Time] [2022-07-21 12:20:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2022-07-21 12:20:29,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2927. [2022-07-21 12:20:29,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2230 states have (on average 1.3708520179372197) internal successors, (3057), 2251 states have internal predecessors, (3057), 512 states have call successors, (512), 189 states have call predecessors, (512), 184 states have return successors, (523), 494 states have call predecessors, (523), 504 states have call successors, (523) [2022-07-21 12:20:29,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4092 transitions. [2022-07-21 12:20:29,059 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4092 transitions. Word has length 194 [2022-07-21 12:20:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 12:20:29,060 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 4092 transitions. [2022-07-21 12:20:29,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (21), 8 states have call predecessors, (21), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 12:20:29,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4092 transitions. [2022-07-21 12:20:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-07-21 12:20:29,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 12:20:29,067 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 12:20:29,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 12:20:29,067 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 12:20:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 12:20:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2019393053, now seen corresponding path program 1 times [2022-07-21 12:20:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 12:20:29,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355054049] [2022-07-21 12:20:29,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 12:20:29,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 12:20:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 12:20:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 12:20:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 12:20:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 12:20:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 12:20:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-21 12:20:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 12:20:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 12:20:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 12:20:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 12:20:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 12:20:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 12:20:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 12:20:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 12:20:29,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 12:20:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-21 12:20:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 12:20:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 12:20:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-21 12:20:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 12:20:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-21 12:20:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 12:20:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 12:20:29,417 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-21 12:20:29,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 12:20:29,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355054049] [2022-07-21 12:20:29,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355054049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 12:20:29,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 12:20:29,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 12:20:29,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449199028] [2022-07-21 12:20:29,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 12:20:29,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 12:20:29,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 12:20:29,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 12:20:29,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-21 12:20:29,421 INFO L87 Difference]: Start difference. First operand 2927 states and 4092 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-21 12:20:33,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:34,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:36,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:38,908 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:40,930 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:42,965 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:44,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:47,017 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:53,257 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:55,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:20:58,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:00,360 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:02,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:06,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:08,810 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:10,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:12,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 12:21:14,819 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 []