./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 f4b24e32 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-?-f4b24e3 [2022-07-14 01:24:29,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 01:24:29,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 01:24:29,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 01:24:29,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 01:24:29,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 01:24:29,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 01:24:29,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 01:24:29,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 01:24:29,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 01:24:29,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 01:24:29,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 01:24:29,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 01:24:29,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 01:24:29,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 01:24:29,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 01:24:29,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 01:24:29,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 01:24:29,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 01:24:29,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 01:24:29,860 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 01:24:29,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 01:24:29,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 01:24:29,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 01:24:29,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 01:24:29,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 01:24:29,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 01:24:29,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 01:24:29,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 01:24:29,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 01:24:29,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 01:24:29,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 01:24:29,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 01:24:29,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 01:24:29,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 01:24:29,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 01:24:29,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 01:24:29,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 01:24:29,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 01:24:29,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 01:24:29,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 01:24:29,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 01:24:29,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 01:24:29,903 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 01:24:29,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 01:24:29,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 01:24:29,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 01:24:29,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 01:24:29,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 01:24:29,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 01:24:29,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 01:24:29,910 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 01:24:29,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 01:24:29,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 01:24:29,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 01:24:29,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 01:24:29,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 01:24:29,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 01:24:29,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 01:24:29,912 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 01:24:29,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 01:24:29,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 01:24:29,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 01:24:29,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 01:24:29,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:24:29,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 01:24:29,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 01:24:29,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 01:24:29,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 01:24:29,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 01:24:29,914 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 01:24:29,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 01:24:29,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 01:24:29,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cfba800a850f13ff72fddf9946e31aec208a19aa4b82d402046e12670b66199 [2022-07-14 01:24:30,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 01:24:30,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 01:24:30,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 01:24:30,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 01:24:30,158 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 01:24:30,159 INFO L432 ainManager$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 [2022-07-14 01:24:30,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dde0a3ed/720683c0640f48b2ad0f2b6ad4b9ddbc/FLAGded0d09d5 [2022-07-14 01:24:30,832 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 01:24:30,832 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 [2022-07-14 01:24:30,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dde0a3ed/720683c0640f48b2ad0f2b6ad4b9ddbc/FLAGded0d09d5 [2022-07-14 01:24:31,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dde0a3ed/720683c0640f48b2ad0f2b6ad4b9ddbc [2022-07-14 01:24:31,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 01:24:31,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 01:24:31,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 01:24:31,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 01:24:31,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 01:24:31,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:24:31" (1/1) ... [2022-07-14 01:24:31,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ea4db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:31, skipping insertion in model container [2022-07-14 01:24:31,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:24:31" (1/1) ... [2022-07-14 01:24:31,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 01:24:31,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 01:24:32,269 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] [2022-07-14 01:24:32,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:24:32,408 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 01:24:32,670 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] [2022-07-14 01:24:32,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 01:24:32,741 INFO L208 MainTranslator]: Completed translation [2022-07-14 01:24:32,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32 WrapperNode [2022-07-14 01:24:32,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 01:24:32,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 01:24:32,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 01:24:32,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 01:24:32,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:32,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,012 INFO L137 Inliner]: procedures = 258, calls = 2260, calls flagged for inlining = 96, calls inlined = 93, statements flattened = 6022 [2022-07-14 01:24:33,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 01:24:33,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 01:24:33,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 01:24:33,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 01:24:33,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 01:24:33,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 01:24:33,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 01:24:33,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 01:24:33,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (1/1) ... [2022-07-14 01:24:33,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 01:24:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 01:24:33,253 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) [2022-07-14 01:24:33,269 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 [2022-07-14 01:24:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 01:24:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 01:24:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 01:24:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 01:24:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-07-14 01:24:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~dma_addr_t~0~TO~VOID [2022-07-14 01:24:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-07-14 01:24:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-07-14 01:24:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mpctl_mutex [2022-07-14 01:24:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mpctl_mutex [2022-07-14 01:24:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 01:24:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 01:24:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_GetIocState [2022-07-14 01:24:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_GetIocState [2022-07-14 01:24:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2022-07-14 01:24:33,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2022-07-14 01:24:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-07-14 01:24:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-07-14 01:24:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 01:24:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 01:24:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 01:24:33,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 01:24:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_syscall_down [2022-07-14 01:24:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_syscall_down [2022-07-14 01:24:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_device_driver_deregister [2022-07-14 01:24:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_device_driver_deregister [2022-07-14 01:24:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 01:24:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 01:24:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_remove [2022-07-14 01:24:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_remove [2022-07-14 01:24:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 01:24:33,289 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 01:24:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 01:24:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 01:24:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame [2022-07-14 01:24:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame [2022-07-14 01:24:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-14 01:24:33,290 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-14 01:24:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-14 01:24:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-14 01:24:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 01:24:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 01:24:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure __mptctl_ioctl [2022-07-14 01:24:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __mptctl_ioctl [2022-07-14 01:24:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_mpt_command [2022-07-14 01:24:33,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_mpt_command [2022-07-14 01:24:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_fw_download [2022-07-14 01:24:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_fw_download [2022-07-14 01:24:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 01:24:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 01:24:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-07-14 01:24:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of__MPT_MGMT [2022-07-14 01:24:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_put_msg_frame_hi_pri [2022-07-14 01:24:33,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_put_msg_frame_hi_pri [2022-07-14 01:24:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 01:24:33,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 01:24:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 01:24:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 01:24:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_fw_memory [2022-07-14 01:24:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_fw_memory [2022-07-14 01:24:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_do_taskmgmt [2022-07-14 01:24:33,294 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_do_taskmgmt [2022-07-14 01:24:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 01:24:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 01:24:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 01:24:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 01:24:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_clear_taskmgmt_in_progress_flag [2022-07-14 01:24:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_clear_taskmgmt_in_progress_flag [2022-07-14 01:24:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_timeout_expired [2022-07-14 01:24:33,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_timeout_expired [2022-07-14 01:24:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-14 01:24:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-14 01:24:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 01:24:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 01:24:33,296 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 01:24:33,296 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 01:24:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mpctl_mutex [2022-07-14 01:24:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mpctl_mutex [2022-07-14 01:24:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure mptctl_fasync [2022-07-14 01:24:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mptctl_fasync [2022-07-14 01:24:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 01:24:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 01:24:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-07-14 01:24:33,297 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-07-14 01:24:33,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 01:24:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_set_taskmgmt_in_progress_flag [2022-07-14 01:24:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_set_taskmgmt_in_progress_flag [2022-07-14 01:24:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 01:24:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 01:24:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_verify_adapter [2022-07-14 01:24:33,298 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_verify_adapter [2022-07-14 01:24:33,298 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 01:24:33,299 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 01:24:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 01:24:33,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 01:24:33,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 01:24:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 01:24:33,300 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 01:24:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_deregister [2022-07-14 01:24:33,300 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_deregister [2022-07-14 01:24:33,300 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_sgl [2022-07-14 01:24:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_sgl [2022-07-14 01:24:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 01:24:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 01:24:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 01:24:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 01:24:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 01:24:33,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 01:24:33,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 01:24:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 01:24:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 01:24:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 01:24:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 01:24:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 01:24:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 01:24:33,302 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_get_msg_frame [2022-07-14 01:24:33,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_get_msg_frame [2022-07-14 01:24:33,303 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-14 01:24:33,303 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-14 01:24:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-07-14 01:24:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of__MPT_MGMT [2022-07-14 01:24:33,305 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_send_handshake_request [2022-07-14 01:24:33,305 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_send_handshake_request [2022-07-14 01:24:33,306 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_register [2022-07-14 01:24:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_register [2022-07-14 01:24:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-07-14 01:24:33,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of__MPT_MGMT [2022-07-14 01:24:33,307 INFO L130 BoogieDeclarations]: Found specification of procedure shost_priv [2022-07-14 01:24:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure shost_priv [2022-07-14 01:24:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 01:24:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-14 01:24:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 01:24:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 01:24:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_config [2022-07-14 01:24:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_config [2022-07-14 01:24:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure mpt_free_msg_frame [2022-07-14 01:24:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mpt_free_msg_frame [2022-07-14 01:24:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 01:24:33,313 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 01:24:33,847 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 01:24:33,849 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 01:24:35,593 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 01:24:45,433 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 01:24:45,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 01:24:45,449 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 01:24:45,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:24:45 BoogieIcfgContainer [2022-07-14 01:24:45,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 01:24:45,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 01:24:45,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 01:24:45,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 01:24:45,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:24:31" (1/3) ... [2022-07-14 01:24:45,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43257a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:24:45, skipping insertion in model container [2022-07-14 01:24:45,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:24:32" (2/3) ... [2022-07-14 01:24:45,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43257a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:24:45, skipping insertion in model container [2022-07-14 01:24:45,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:24:45" (3/3) ... [2022-07-14 01:24:45,459 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--message--fusion--mptctl.ko-entry_point.cil.out.i [2022-07-14 01:24:45,521 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 01:24:45,522 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 01:24:45,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 01:24:45,601 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@5ce62867, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@50a417f7 [2022-07-14 01:24:45,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 01:24:45,609 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) [2022-07-14 01:24:45,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-14 01:24:45,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:24:45,621 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] [2022-07-14 01:24:45,622 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:24:45,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:24:45,627 INFO L85 PathProgramCache]: Analyzing trace with hash -806038929, now seen corresponding path program 1 times [2022-07-14 01:24:45,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:24:45,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323024909] [2022-07-14 01:24:45,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:24:45,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:24:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:24:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:24:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:24:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:24:46,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:24:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:24:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:24:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:24:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:24:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:24:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:24:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:24:46,217 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 01:24:46,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:24:46,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323024909] [2022-07-14 01:24:46,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323024909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:24:46,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:24:46,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 01:24:46,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020653703] [2022-07-14 01:24:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:24:46,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 01:24:46,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:24:46,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 01:24:46,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 01:24:46,244 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) [2022-07-14 01:24:48,536 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 [] [2022-07-14 01:24:50,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:24:52,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:24:54,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:24:57,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:00,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:02,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:04,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:04,864 INFO L93 Difference]: Finished difference Result 2812 states and 4246 transitions. [2022-07-14 01:25:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 01:25:04,866 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 [2022-07-14 01:25:04,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:04,880 INFO L225 Difference]: With dead ends: 2812 [2022-07-14 01:25:04,880 INFO L226 Difference]: Without dead ends: 1421 [2022-07-14 01:25:04,891 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 [2022-07-14 01:25:04,893 INFO L413 NwaCegarLoop]: 1951 mSDtfsCounter, 516 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 633 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 633 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:04,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 3829 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [633 Valid, 1175 Invalid, 6 Unknown, 0 Unchecked, 18.4s Time] [2022-07-14 01:25:04,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2022-07-14 01:25:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1370. [2022-07-14 01:25:04,989 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) [2022-07-14 01:25:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1988 transitions. [2022-07-14 01:25:05,003 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1988 transitions. Word has length 119 [2022-07-14 01:25:05,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:05,006 INFO L495 AbstractCegarLoop]: Abstraction has 1370 states and 1988 transitions. [2022-07-14 01:25:05,006 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) [2022-07-14 01:25:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1988 transitions. [2022-07-14 01:25:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-14 01:25:05,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:05,012 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] [2022-07-14 01:25:05,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 01:25:05,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:05,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:05,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1515762989, now seen corresponding path program 1 times [2022-07-14 01:25:05,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:05,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479784951] [2022-07-14 01:25:05,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:05,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:25:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:25:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:25:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:25:05,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:25:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:25:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:25:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:05,313 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-07-14 01:25:05,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:05,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479784951] [2022-07-14 01:25:05,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479784951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:05,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:05,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:25:05,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716394365] [2022-07-14 01:25:05,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:05,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:25:05,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:05,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:25:05,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:05,318 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) [2022-07-14 01:25:06,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:08,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:11,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:15,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:15,574 INFO L93 Difference]: Finished difference Result 2871 states and 4167 transitions. [2022-07-14 01:25:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:25:15,574 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 [2022-07-14 01:25:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:15,581 INFO L225 Difference]: With dead ends: 2871 [2022-07-14 01:25:15,582 INFO L226 Difference]: Without dead ends: 1527 [2022-07-14 01:25:15,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:25:15,590 INFO L413 NwaCegarLoop]: 1962 mSDtfsCounter, 979 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 1005 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 2176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:15,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 4371 Invalid, 2176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 1168 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-07-14 01:25:15,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2022-07-14 01:25:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1455. [2022-07-14 01:25:15,624 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) [2022-07-14 01:25:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2090 transitions. [2022-07-14 01:25:15,630 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2090 transitions. Word has length 119 [2022-07-14 01:25:15,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:15,633 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 2090 transitions. [2022-07-14 01:25:15,634 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) [2022-07-14 01:25:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2090 transitions. [2022-07-14 01:25:15,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-07-14 01:25:15,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:15,636 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] [2022-07-14 01:25:15,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 01:25:15,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:15,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:15,637 INFO L85 PathProgramCache]: Analyzing trace with hash -291305680, now seen corresponding path program 1 times [2022-07-14 01:25:15,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:15,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989259664] [2022-07-14 01:25:15,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:15,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:25:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:25:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:25:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:25:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:25:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:25:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:25:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 01:25:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 01:25:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 01:25:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-14 01:25:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-07-14 01:25:15,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989259664] [2022-07-14 01:25:15,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989259664] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:15,854 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:15,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:25:15,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909858530] [2022-07-14 01:25:15,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:15,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:25:15,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:15,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:25:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:15,856 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) [2022-07-14 01:25:17,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:21,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:22,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:26,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:28,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:30,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:32,917 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:34,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:38,535 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:40,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:41,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:41,378 INFO L93 Difference]: Finished difference Result 4284 states and 6237 transitions. [2022-07-14 01:25:41,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:25:41,379 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 [2022-07-14 01:25:41,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:41,395 INFO L225 Difference]: With dead ends: 4284 [2022-07-14 01:25:41,395 INFO L226 Difference]: Without dead ends: 2869 [2022-07-14 01:25:41,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:25:41,402 INFO L413 NwaCegarLoop]: 2193 mSDtfsCounter, 2690 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 1333 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 5519 SdHoareTripleChecker+Invalid, 3575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1333 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.3s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:41,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 5519 Invalid, 3575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1333 Valid, 2235 Invalid, 7 Unknown, 0 Unchecked, 25.3s Time] [2022-07-14 01:25:41,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2022-07-14 01:25:41,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2752. [2022-07-14 01:25:41,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 2123 states have (on average 1.412152614225153) internal successors, (2998), 2141 states have internal predecessors, (2998), 500 states have call successors, (500), 129 states have call predecessors, (500), 128 states have return successors, (489), 487 states have call predecessors, (489), 489 states have call successors, (489) [2022-07-14 01:25:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3987 transitions. [2022-07-14 01:25:41,470 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3987 transitions. Word has length 138 [2022-07-14 01:25:41,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:41,471 INFO L495 AbstractCegarLoop]: Abstraction has 2752 states and 3987 transitions. [2022-07-14 01:25:41,472 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) [2022-07-14 01:25:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3987 transitions. [2022-07-14 01:25:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-14 01:25:41,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:41,474 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] [2022-07-14 01:25:41,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 01:25:41,474 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:41,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash -139107950, now seen corresponding path program 1 times [2022-07-14 01:25:41,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:41,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595041081] [2022-07-14 01:25:41,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:41,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:25:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:25:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:25:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:25:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:25:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:25:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:25:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:25:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:25:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:25:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:41,807 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:25:41,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:41,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595041081] [2022-07-14 01:25:41,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595041081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:41,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:41,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:25:41,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018122156] [2022-07-14 01:25:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:41,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:25:41,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:25:41,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:41,809 INFO L87 Difference]: Start difference. First operand 2752 states and 3987 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) [2022-07-14 01:25:43,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:45,222 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:47,759 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:49,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:52,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:55,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:55,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:25:55,541 INFO L93 Difference]: Finished difference Result 2858 states and 4179 transitions. [2022-07-14 01:25:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 01:25:55,541 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 [2022-07-14 01:25:55,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:25:55,551 INFO L225 Difference]: With dead ends: 2858 [2022-07-14 01:25:55,551 INFO L226 Difference]: Without dead ends: 2855 [2022-07-14 01:25:55,552 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 [2022-07-14 01:25:55,553 INFO L413 NwaCegarLoop]: 1934 mSDtfsCounter, 2489 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 1071 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1071 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-07-14 01:25:55,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2684 Valid, 2917 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1071 Valid, 611 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2022-07-14 01:25:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2022-07-14 01:25:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2751. [2022-07-14 01:25:55,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2751 states, 2123 states have (on average 1.4116815826660387) internal successors, (2997), 2140 states have internal predecessors, (2997), 499 states have call successors, (499), 129 states have call predecessors, (499), 128 states have return successors, (489), 487 states have call predecessors, (489), 489 states have call successors, (489) [2022-07-14 01:25:55,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 3985 transitions. [2022-07-14 01:25:55,610 INFO L78 Accepts]: Start accepts. Automaton has 2751 states and 3985 transitions. Word has length 163 [2022-07-14 01:25:55,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:25:55,612 INFO L495 AbstractCegarLoop]: Abstraction has 2751 states and 3985 transitions. [2022-07-14 01:25:55,612 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) [2022-07-14 01:25:55,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2751 states and 3985 transitions. [2022-07-14 01:25:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-07-14 01:25:55,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:25:55,613 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] [2022-07-14 01:25:55,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 01:25:55,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:25:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:25:55,614 INFO L85 PathProgramCache]: Analyzing trace with hash -18690541, now seen corresponding path program 1 times [2022-07-14 01:25:55,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:25:55,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022009961] [2022-07-14 01:25:55,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:25:55,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:25:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:25:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:25:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:25:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:25:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:25:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:25:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:25:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:25:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:25:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:25:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:25:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:25:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:25:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:25:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:25:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:25:55,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:25:55,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022009961] [2022-07-14 01:25:55,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022009961] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:25:55,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:25:55,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:25:55,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114310228] [2022-07-14 01:25:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:25:55,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:25:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:25:55,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:25:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:25:55,889 INFO L87 Difference]: Start difference. First operand 2751 states and 3985 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) [2022-07-14 01:25:57,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:25:58,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:00,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:04,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:06,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:08,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:11,145 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 [] [2022-07-14 01:26:11,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:11,491 INFO L93 Difference]: Finished difference Result 3401 states and 4844 transitions. [2022-07-14 01:26:11,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:26:11,491 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 [2022-07-14 01:26:11,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:11,504 INFO L225 Difference]: With dead ends: 3401 [2022-07-14 01:26:11,506 INFO L226 Difference]: Without dead ends: 3398 [2022-07-14 01:26:11,509 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 [2022-07-14 01:26:11,510 INFO L413 NwaCegarLoop]: 2036 mSDtfsCounter, 1993 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 852 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 4389 SdHoareTripleChecker+Invalid, 2327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 852 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:11,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 4389 Invalid, 2327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [852 Valid, 1471 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2022-07-14 01:26:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3398 states. [2022-07-14 01:26:11,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3398 to 3220. [2022-07-14 01:26:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 2455 states have (on average 1.3914460285132384) internal successors, (3416), 2479 states have internal predecessors, (3416), 572 states have call successors, (572), 193 states have call predecessors, (572), 192 states have return successors, (563), 559 states have call predecessors, (563), 563 states have call successors, (563) [2022-07-14 01:26:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 4551 transitions. [2022-07-14 01:26:11,639 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 4551 transitions. Word has length 164 [2022-07-14 01:26:11,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:11,639 INFO L495 AbstractCegarLoop]: Abstraction has 3220 states and 4551 transitions. [2022-07-14 01:26:11,640 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) [2022-07-14 01:26:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 4551 transitions. [2022-07-14 01:26:11,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-07-14 01:26:11,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:11,642 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] [2022-07-14 01:26:11,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 01:26:11,642 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash -580713291, now seen corresponding path program 1 times [2022-07-14 01:26:11,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:11,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790879442] [2022-07-14 01:26:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:11,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:26:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:26:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:26:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:26:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:26:11,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:26:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:26:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:26:11,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:26:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:26:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:26:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:26:11,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:11,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790879442] [2022-07-14 01:26:11,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790879442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:26:11,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:26:11,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:26:11,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960890731] [2022-07-14 01:26:11,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:26:11,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:26:11,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:26:11,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:26:11,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:26:11,895 INFO L87 Difference]: Start difference. First operand 3220 states and 4551 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) [2022-07-14 01:26:14,165 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:16,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:18,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:23,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:25,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:27,528 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 [] [2022-07-14 01:26:27,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:27,846 INFO L93 Difference]: Finished difference Result 3430 states and 4869 transitions. [2022-07-14 01:26:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:26:27,846 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 [2022-07-14 01:26:27,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:27,858 INFO L225 Difference]: With dead ends: 3430 [2022-07-14 01:26:27,858 INFO L226 Difference]: Without dead ends: 3426 [2022-07-14 01:26:27,860 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 [2022-07-14 01:26:27,860 INFO L413 NwaCegarLoop]: 1929 mSDtfsCounter, 729 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 653 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 5088 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:27,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 5088 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [653 Valid, 1666 Invalid, 4 Unknown, 0 Unchecked, 15.8s Time] [2022-07-14 01:26:27,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3426 states. [2022-07-14 01:26:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3426 to 3248. [2022-07-14 01:26:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3248 states, 2474 states have (on average 1.387631366208569) internal successors, (3433), 2496 states have internal predecessors, (3433), 574 states have call successors, (574), 200 states have call predecessors, (574), 199 states have return successors, (567), 563 states have call predecessors, (567), 567 states have call successors, (567) [2022-07-14 01:26:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3248 states to 3248 states and 4574 transitions. [2022-07-14 01:26:27,956 INFO L78 Accepts]: Start accepts. Automaton has 3248 states and 4574 transitions. Word has length 165 [2022-07-14 01:26:27,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:27,957 INFO L495 AbstractCegarLoop]: Abstraction has 3248 states and 4574 transitions. [2022-07-14 01:26:27,957 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) [2022-07-14 01:26:27,957 INFO L276 IsEmpty]: Start isEmpty. Operand 3248 states and 4574 transitions. [2022-07-14 01:26:27,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-07-14 01:26:27,958 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:27,958 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] [2022-07-14 01:26:27,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 01:26:27,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:27,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:27,959 INFO L85 PathProgramCache]: Analyzing trace with hash -823544490, now seen corresponding path program 1 times [2022-07-14 01:26:27,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:27,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439017013] [2022-07-14 01:26:27,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:27,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:28,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:26:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:26:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:26:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:26:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:26:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:26:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:26:28,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:26:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:26:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:26:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:26:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:28,200 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:26:28,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:28,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439017013] [2022-07-14 01:26:28,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439017013] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:26:28,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:26:28,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:26:28,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639290919] [2022-07-14 01:26:28,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:26:28,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:26:28,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:26:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:26:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:26:28,202 INFO L87 Difference]: Start difference. First operand 3248 states and 4574 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) [2022-07-14 01:26:30,563 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 [] [2022-07-14 01:26:33,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:35,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:36,501 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:38,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:43,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:45,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:48,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:50,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:52,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:54,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:26:56,924 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 [] [2022-07-14 01:26:57,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:26:57,340 INFO L93 Difference]: Finished difference Result 9442 states and 13448 transitions. [2022-07-14 01:26:57,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:26:57,340 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 [2022-07-14 01:26:57,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:26:57,373 INFO L225 Difference]: With dead ends: 9442 [2022-07-14 01:26:57,373 INFO L226 Difference]: Without dead ends: 6234 [2022-07-14 01:26:57,389 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 [2022-07-14 01:26:57,391 INFO L413 NwaCegarLoop]: 2744 mSDtfsCounter, 2283 mSDsluCounter, 3923 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 1097 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 6667 SdHoareTripleChecker+Invalid, 3483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2022-07-14 01:26:57,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 6667 Invalid, 3483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 2377 Invalid, 9 Unknown, 0 Unchecked, 28.8s Time] [2022-07-14 01:26:57,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6234 states. [2022-07-14 01:26:57,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6234 to 5938. [2022-07-14 01:26:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5938 states, 4556 states have (on average 1.3904741000877963) internal successors, (6335), 4608 states have internal predecessors, (6335), 1025 states have call successors, (1025), 366 states have call predecessors, (1025), 356 states have return successors, (1054), 979 states have call predecessors, (1054), 1012 states have call successors, (1054) [2022-07-14 01:26:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5938 states to 5938 states and 8414 transitions. [2022-07-14 01:26:57,689 INFO L78 Accepts]: Start accepts. Automaton has 5938 states and 8414 transitions. Word has length 166 [2022-07-14 01:26:57,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:26:57,692 INFO L495 AbstractCegarLoop]: Abstraction has 5938 states and 8414 transitions. [2022-07-14 01:26:57,693 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) [2022-07-14 01:26:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5938 states and 8414 transitions. [2022-07-14 01:26:57,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-07-14 01:26:57,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:26:57,694 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] [2022-07-14 01:26:57,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 01:26:57,694 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:26:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:26:57,695 INFO L85 PathProgramCache]: Analyzing trace with hash 238627800, now seen corresponding path program 1 times [2022-07-14 01:26:57,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:26:57,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559687064] [2022-07-14 01:26:57,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:26:57,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:26:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:26:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:26:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:26:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:26:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:26:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:26:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:26:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:26:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:26:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:26:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:26:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:26:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:26:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:26:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:26:57,933 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:26:57,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:26:57,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559687064] [2022-07-14 01:26:57,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559687064] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:26:57,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:26:57,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 01:26:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024988816] [2022-07-14 01:26:57,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:26:57,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 01:26:57,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:26:57,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 01:26:57,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 01:26:57,935 INFO L87 Difference]: Start difference. First operand 5938 states and 8414 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) [2022-07-14 01:27:00,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:02,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:04,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:08,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:10,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:13,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:15,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:16,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:18,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:19,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:27:19,248 INFO L93 Difference]: Finished difference Result 6206 states and 8852 transitions. [2022-07-14 01:27:19,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 01:27:19,249 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 [2022-07-14 01:27:19,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:27:19,273 INFO L225 Difference]: With dead ends: 6206 [2022-07-14 01:27:19,273 INFO L226 Difference]: Without dead ends: 6179 [2022-07-14 01:27:19,276 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 [2022-07-14 01:27:19,276 INFO L413 NwaCegarLoop]: 2012 mSDtfsCounter, 1980 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 855 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 4335 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-07-14 01:27:19,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2144 Valid, 4335 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 1467 Invalid, 7 Unknown, 0 Unchecked, 21.1s Time] [2022-07-14 01:27:19,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2022-07-14 01:27:19,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 5913. [2022-07-14 01:27:19,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 4539 states have (on average 1.3903943599911874) internal successors, (6311), 4590 states have internal predecessors, (6311), 1020 states have call successors, (1020), 363 states have call predecessors, (1020), 353 states have return successors, (1050), 975 states have call predecessors, (1050), 1008 states have call successors, (1050) [2022-07-14 01:27:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 8381 transitions. [2022-07-14 01:27:19,420 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 8381 transitions. Word has length 167 [2022-07-14 01:27:19,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:27:19,421 INFO L495 AbstractCegarLoop]: Abstraction has 5913 states and 8381 transitions. [2022-07-14 01:27:19,421 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) [2022-07-14 01:27:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 8381 transitions. [2022-07-14 01:27:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 01:27:19,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:27:19,423 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] [2022-07-14 01:27:19,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 01:27:19,423 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:27:19,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:27:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1755941157, now seen corresponding path program 1 times [2022-07-14 01:27:19,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:27:19,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914227536] [2022-07-14 01:27:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:19,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:27:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:27:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:27:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:27:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:27:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:27:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:27:19,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:27:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:27:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:27:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:27:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:27:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:27:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 01:27:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 01:27:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:27:19,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:27:19,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914227536] [2022-07-14 01:27:19,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914227536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:27:19,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:27:19,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 01:27:19,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977980527] [2022-07-14 01:27:19,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:27:19,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 01:27:19,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:27:19,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 01:27:19,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 01:27:19,650 INFO L87 Difference]: Start difference. First operand 5913 states and 8381 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) [2022-07-14 01:27:22,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:24,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:28,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:30,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:33,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:35,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:37,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:27:37,308 INFO L93 Difference]: Finished difference Result 9170 states and 12989 transitions. [2022-07-14 01:27:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 01:27:37,309 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 [2022-07-14 01:27:37,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:27:37,331 INFO L225 Difference]: With dead ends: 9170 [2022-07-14 01:27:37,343 INFO L226 Difference]: Without dead ends: 3295 [2022-07-14 01:27:37,360 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 [2022-07-14 01:27:37,362 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 2031 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 3314 mSolverCounterSat, 1272 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 4590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1272 IncrementalHoareTripleChecker+Valid, 3314 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:27:37,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 2508 Invalid, 4590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1272 Valid, 3314 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time] [2022-07-14 01:27:37,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2022-07-14 01:27:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 3149. [2022-07-14 01:27:37,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3149 states, 2405 states have (on average 1.3783783783783783) internal successors, (3315), 2432 states have internal predecessors, (3315), 546 states have call successors, (546), 203 states have call predecessors, (546), 197 states have return successors, (555), 521 states have call predecessors, (555), 534 states have call successors, (555) [2022-07-14 01:27:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 4416 transitions. [2022-07-14 01:27:37,441 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 4416 transitions. Word has length 187 [2022-07-14 01:27:37,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:27:37,441 INFO L495 AbstractCegarLoop]: Abstraction has 3149 states and 4416 transitions. [2022-07-14 01:27:37,442 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) [2022-07-14 01:27:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 4416 transitions. [2022-07-14 01:27:37,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-14 01:27:37,443 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:27:37,444 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] [2022-07-14 01:27:37,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 01:27:37,444 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:27:37,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:27:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1153536120, now seen corresponding path program 1 times [2022-07-14 01:27:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:27:37,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765201944] [2022-07-14 01:27:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:27:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:27:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:27:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:27:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:27:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:27:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:27:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:27:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:27:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:27:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:27:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:27:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:27:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:27:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:27:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:27:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:27:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-14 01:27:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 01:27:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:27:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2022-07-14 01:27:37,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:27:37,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765201944] [2022-07-14 01:27:37,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765201944] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:27:37,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:27:37,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:27:37,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295071118] [2022-07-14 01:27:37,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:27:37,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:27:37,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:27:37,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:27:37,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:27:37,660 INFO L87 Difference]: Start difference. First operand 3149 states and 4416 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 01:27:40,488 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:42,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:44,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:46,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:48,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:50,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:27:58,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:01,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:02,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:05,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:07,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:09,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:11,738 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 [] [2022-07-14 01:28:12,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:28:12,406 INFO L93 Difference]: Finished difference Result 6679 states and 9427 transitions. [2022-07-14 01:28:12,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 01:28:12,407 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 195 [2022-07-14 01:28:12,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:28:12,420 INFO L225 Difference]: With dead ends: 6679 [2022-07-14 01:28:12,420 INFO L226 Difference]: Without dead ends: 3603 [2022-07-14 01:28:12,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-07-14 01:28:12,431 INFO L413 NwaCegarLoop]: 1799 mSDtfsCounter, 2204 mSDsluCounter, 1293 mSDsCounter, 0 mSdLazyCounter, 5955 mSolverCounterSat, 1160 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 7125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1160 IncrementalHoareTripleChecker+Valid, 5955 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:28:12,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 3092 Invalid, 7125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1160 Valid, 5955 Invalid, 10 Unknown, 0 Unchecked, 34.4s Time] [2022-07-14 01:28:12,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2022-07-14 01:28:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 3301. [2022-07-14 01:28:12,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3301 states, 2535 states have (on average 1.3759368836291914) internal successors, (3488), 2562 states have internal predecessors, (3488), 556 states have call successors, (556), 215 states have call predecessors, (556), 209 states have return successors, (565), 531 states have call predecessors, (565), 544 states have call successors, (565) [2022-07-14 01:28:12,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 4609 transitions. [2022-07-14 01:28:12,532 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 4609 transitions. Word has length 195 [2022-07-14 01:28:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:28:12,532 INFO L495 AbstractCegarLoop]: Abstraction has 3301 states and 4609 transitions. [2022-07-14 01:28:12,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (21), 7 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-14 01:28:12,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 4609 transitions. [2022-07-14 01:28:12,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-07-14 01:28:12,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:28:12,535 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] [2022-07-14 01:28:12,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 01:28:12,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:28:12,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:28:12,536 INFO L85 PathProgramCache]: Analyzing trace with hash -520232844, now seen corresponding path program 1 times [2022-07-14 01:28:12,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:28:12,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646122531] [2022-07-14 01:28:12,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:28:12,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:28:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:28:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:28:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:28:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:28:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:28:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:28:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:28:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:28:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:28:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:28:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:28:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:28:12,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:28:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 01:28:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 01:28:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-07-14 01:28:12,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:28:12,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646122531] [2022-07-14 01:28:12,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646122531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:28:12,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:28:12,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 01:28:12,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499174041] [2022-07-14 01:28:12,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:28:12,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 01:28:12,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:28:12,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 01:28:12,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-14 01:28:12,895 INFO L87 Difference]: Start difference. First operand 3301 states and 4609 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) [2022-07-14 01:28:15,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:17,284 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:19,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:24,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:26,701 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:28,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:32,922 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:34,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:36,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:39,971 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:42,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:42,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 01:28:42,687 INFO L93 Difference]: Finished difference Result 3592 states and 5076 transitions. [2022-07-14 01:28:42,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 01:28:42,687 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 [2022-07-14 01:28:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 01:28:42,697 INFO L225 Difference]: With dead ends: 3592 [2022-07-14 01:28:42,697 INFO L226 Difference]: Without dead ends: 3589 [2022-07-14 01:28:42,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2022-07-14 01:28:42,699 INFO L413 NwaCegarLoop]: 1811 mSDtfsCounter, 3749 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 4935 mSolverCounterSat, 2207 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3822 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 7152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2207 IncrementalHoareTripleChecker+Valid, 4935 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-07-14 01:28:42,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3822 Valid, 2881 Invalid, 7152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2207 Valid, 4935 Invalid, 10 Unknown, 0 Unchecked, 29.4s Time] [2022-07-14 01:28:42,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3589 states. [2022-07-14 01:28:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3589 to 3300. [2022-07-14 01:28:42,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 2535 states have (on average 1.3743589743589744) internal successors, (3484), 2561 states have internal predecessors, (3484), 555 states have call successors, (555), 215 states have call predecessors, (555), 209 states have return successors, (565), 531 states have call predecessors, (565), 544 states have call successors, (565) [2022-07-14 01:28:42,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4604 transitions. [2022-07-14 01:28:42,779 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4604 transitions. Word has length 194 [2022-07-14 01:28:42,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 01:28:42,780 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4604 transitions. [2022-07-14 01:28:42,780 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) [2022-07-14 01:28:42,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4604 transitions. [2022-07-14 01:28:42,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-07-14 01:28:42,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 01:28:42,784 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, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 01:28:42,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 01:28:42,785 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 01:28:42,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 01:28:42,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1941829721, now seen corresponding path program 1 times [2022-07-14 01:28:42,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 01:28:42,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823016499] [2022-07-14 01:28:42,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 01:28:42,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 01:28:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 01:28:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-14 01:28:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-14 01:28:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 01:28:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 01:28:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 01:28:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 01:28:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-14 01:28:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-14 01:28:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-14 01:28:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 01:28:43,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 01:28:43,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 01:28:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 01:28:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 01:28:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 01:28:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 01:28:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 01:28:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 01:28:43,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 01:28:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2022-07-14 01:28:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-14 01:28:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 01:28:43,156 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-14 01:28:43,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 01:28:43,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823016499] [2022-07-14 01:28:43,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823016499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 01:28:43,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 01:28:43,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 01:28:43,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816447199] [2022-07-14 01:28:43,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 01:28:43,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 01:28:43,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 01:28:43,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 01:28:43,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 01:28:43,158 INFO L87 Difference]: Start difference. First operand 3300 states and 4604 transitions. Second operand has 9 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (27), 8 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-14 01:28:45,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:48,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:50,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:55,951 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:28:58,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:29:00,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 01:29:02,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []