./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--input--serio--serio_raw.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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--input--serio--serio_raw.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 b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:19:57,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:19:57,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:19:57,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:19:57,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:19:57,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:19:57,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:19:57,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:19:57,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:19:57,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:19:57,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:19:57,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:19:57,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:19:57,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:19:57,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:19:57,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:19:57,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:19:57,876 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:19:57,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:19:57,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:19:57,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:19:57,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:19:57,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:19:57,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:19:57,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:19:57,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:19:57,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:19:57,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:19:57,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:19:57,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:19:57,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:19:57,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:19:57,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:19:57,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:19:57,889 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:19:57,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:19:57,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:19:57,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:19:57,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:19:57,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:19:57,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:19:57,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:19:57,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:19:57,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:19:57,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:19:57,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:19:57,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:19:57,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:19:57,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:19:57,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:19:57,911 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:19:57,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:19:57,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:19:57,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:19:57,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:19:57,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:19:57,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:19:57,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:19:57,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:19:57,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:19:57,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:19:57,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:19:57,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:19:57,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:19:57,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:19:57,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:19:57,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:19:57,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:19:57,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:19:57,914 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:19:57,914 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:19:57,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:19:57,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:19:57,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1b2a361b7351c4ac2fc0213f47206309b2fae43ca25ec3cefac8a1c8b001422 [2021-12-16 04:19:58,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:19:58,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:19:58,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:19:58,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:19:58,134 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:19:58,134 INFO L432 ainManager$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--input--serio--serio_raw.ko-entry_point.cil.out.i [2021-12-16 04:19:58,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a58518c8/d7a4372038bc48e4afd597a2f197b317/FLAGb080af445 [2021-12-16 04:19:58,665 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:19:58,665 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--input--serio--serio_raw.ko-entry_point.cil.out.i [2021-12-16 04:19:58,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a58518c8/d7a4372038bc48e4afd597a2f197b317/FLAGb080af445 [2021-12-16 04:19:58,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a58518c8/d7a4372038bc48e4afd597a2f197b317 [2021-12-16 04:19:58,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:19:58,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:19:58,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:19:58,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:19:58,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:19:58,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:19:58" (1/1) ... [2021-12-16 04:19:58,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359a0f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:19:58, skipping insertion in model container [2021-12-16 04:19:58,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:19:58" (1/1) ... [2021-12-16 04:19:58,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:19:59,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:19:59,814 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--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2021-12-16 04:19:59,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:19:59,920 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:20:00,056 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--input--serio--serio_raw.ko-entry_point.cil.out.i[129978,129991] [2021-12-16 04:20:00,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:20:00,115 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:20:00,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00 WrapperNode [2021-12-16 04:20:00,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:20:00,118 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:20:00,118 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:20:00,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:20:00,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,244 INFO L137 Inliner]: procedures = 188, calls = 548, calls flagged for inlining = 71, calls inlined = 66, statements flattened = 1576 [2021-12-16 04:20:00,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:20:00,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:20:00,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:20:00,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:20:00,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:20:00,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:20:00,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:20:00,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:20:00,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (1/1) ... [2021-12-16 04:20:00,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:20:00,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:20:00,388 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) [2021-12-16 04:20:00,394 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 [2021-12-16 04:20:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_serio_raw_mutex [2021-12-16 04:20:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_serio_raw_mutex [2021-12-16 04:20:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-16 04:20:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-16 04:20:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:20:00,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:20:00,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:20:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-16 04:20:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-16 04:20:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 04:20:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 04:20:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:20:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:20:00,432 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2021-12-16 04:20:00,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2021-12-16 04:20:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2021-12-16 04:20:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2021-12-16 04:20:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 04:20:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 04:20:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 04:20:00,433 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 04:20:00,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 04:20:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:20:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:20:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-16 04:20:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-16 04:20:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 04:20:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 04:20:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_disconnect [2021-12-16 04:20:00,434 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_disconnect [2021-12-16 04:20:00,434 INFO L130 BoogieDeclarations]: Found specification of procedure serio_continue_rx [2021-12-16 04:20:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_continue_rx [2021-12-16 04:20:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-16 04:20:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-16 04:20:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:20:00,435 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:20:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:20:00,435 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_poll [2021-12-16 04:20:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_poll [2021-12-16 04:20:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-16 04:20:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-16 04:20:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-16 04:20:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-16 04:20:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:20:00,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-16 04:20:00,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-16 04:20:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:20:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure serio_set_drvdata [2021-12-16 04:20:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_set_drvdata [2021-12-16 04:20:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:20:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 04:20:00,437 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 04:20:00,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:20:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-16 04:20:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2021-12-16 04:20:00,438 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2021-12-16 04:20:00,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:20:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-16 04:20:00,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-16 04:20:00,439 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-16 04:20:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure serio_pause_rx [2021-12-16 04:20:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_pause_rx [2021-12-16 04:20:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-16 04:20:00,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-16 04:20:00,440 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2021-12-16 04:20:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2021-12-16 04:20:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:20:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:20:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2021-12-16 04:20:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2021-12-16 04:20:00,441 INFO L130 BoogieDeclarations]: Found specification of procedure serio_get_drvdata [2021-12-16 04:20:00,441 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_get_drvdata [2021-12-16 04:20:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-16 04:20:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-16 04:20:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2021-12-16 04:20:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_serio_raw_mutex [2021-12-16 04:20:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-16 04:20:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-16 04:20:00,442 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-16 04:20:00,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-16 04:20:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure serio_close [2021-12-16 04:20:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_close [2021-12-16 04:20:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_serio_raw_mutex [2021-12-16 04:20:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_serio_raw_mutex [2021-12-16 04:20:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:20:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_write [2021-12-16 04:20:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_write [2021-12-16 04:20:00,443 INFO L130 BoogieDeclarations]: Found specification of procedure serio_raw_fasync [2021-12-16 04:20:00,443 INFO L138 BoogieDeclarations]: Found implementation of procedure serio_raw_fasync [2021-12-16 04:20:00,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:20:00,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:20:00,758 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:20:00,760 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:20:00,876 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:20:01,545 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:20:01,560 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:20:01,561 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:20:01,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:20:01 BoogieIcfgContainer [2021-12-16 04:20:01,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:20:01,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:20:01,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:20:01,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:20:01,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:19:58" (1/3) ... [2021-12-16 04:20:01,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f83c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:20:01, skipping insertion in model container [2021-12-16 04:20:01,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:20:00" (2/3) ... [2021-12-16 04:20:01,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f83c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:20:01, skipping insertion in model container [2021-12-16 04:20:01,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:20:01" (3/3) ... [2021-12-16 04:20:01,572 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--input--serio--serio_raw.ko-entry_point.cil.out.i [2021-12-16 04:20:01,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:20:01,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:20:01,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:20:01,618 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:20:01,618 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:20:01,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 521 states, 368 states have (on average 1.3233695652173914) internal successors, (487), 387 states have internal predecessors, (487), 113 states have call successors, (113), 39 states have call predecessors, (113), 38 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2021-12-16 04:20:01,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-16 04:20:01,650 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:01,650 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:01,651 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:01,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:01,656 INFO L85 PathProgramCache]: Analyzing trace with hash 263673512, now seen corresponding path program 1 times [2021-12-16 04:20:01,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:01,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865089433] [2021-12-16 04:20:01,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:01,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:01,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:02,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:02,290 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:02,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:02,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865089433] [2021-12-16 04:20:02,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865089433] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:02,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:02,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:20:02,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562750385] [2021-12-16 04:20:02,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:02,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:20:02,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:02,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:20:02,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:20:02,318 INFO L87 Difference]: Start difference. First operand has 521 states, 368 states have (on average 1.3233695652173914) internal successors, (487), 387 states have internal predecessors, (487), 113 states have call successors, (113), 39 states have call predecessors, (113), 38 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 04:20:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:02,808 INFO L93 Difference]: Finished difference Result 1061 states and 1484 transitions. [2021-12-16 04:20:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:20:02,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2021-12-16 04:20:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:02,820 INFO L225 Difference]: With dead ends: 1061 [2021-12-16 04:20:02,820 INFO L226 Difference]: Without dead ends: 534 [2021-12-16 04:20:02,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:02,828 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 479 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:02,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [480 Valid, 976 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 04:20:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-12-16 04:20:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 510. [2021-12-16 04:20:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 363 states have (on average 1.3085399449035813) internal successors, (475), 376 states have internal predecessors, (475), 109 states have call successors, (109), 38 states have call predecessors, (109), 37 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2021-12-16 04:20:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 685 transitions. [2021-12-16 04:20:02,882 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 685 transitions. Word has length 168 [2021-12-16 04:20:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:02,882 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 685 transitions. [2021-12-16 04:20:02,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-16 04:20:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 685 transitions. [2021-12-16 04:20:02,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-16 04:20:02,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:02,886 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:02,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:20:02,887 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:02,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:02,887 INFO L85 PathProgramCache]: Analyzing trace with hash 2145863860, now seen corresponding path program 1 times [2021-12-16 04:20:02,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:02,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66335881] [2021-12-16 04:20:02,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:02,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:03,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:03,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:03,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:03,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66335881] [2021-12-16 04:20:03,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66335881] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:03,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:03,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:03,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739062719] [2021-12-16 04:20:03,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:03,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:03,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:03,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:03,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:03,175 INFO L87 Difference]: Start difference. First operand 510 states and 685 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-16 04:20:04,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:04,510 INFO L93 Difference]: Finished difference Result 1481 states and 1992 transitions. [2021-12-16 04:20:04,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:20:04,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 168 [2021-12-16 04:20:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:04,516 INFO L225 Difference]: With dead ends: 1481 [2021-12-16 04:20:04,517 INFO L226 Difference]: Without dead ends: 1007 [2021-12-16 04:20:04,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:04,519 INFO L933 BasicCegarLoop]: 725 mSDtfsCounter, 1136 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:04,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 2112 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 04:20:04,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2021-12-16 04:20:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 957. [2021-12-16 04:20:04,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 688 states have (on average 1.3125) internal successors, (903), 707 states have internal predecessors, (903), 195 states have call successors, (195), 74 states have call predecessors, (195), 73 states have return successors, (187), 187 states have call predecessors, (187), 187 states have call successors, (187) [2021-12-16 04:20:04,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1285 transitions. [2021-12-16 04:20:04,557 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1285 transitions. Word has length 168 [2021-12-16 04:20:04,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:04,558 INFO L470 AbstractCegarLoop]: Abstraction has 957 states and 1285 transitions. [2021-12-16 04:20:04,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-16 04:20:04,558 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1285 transitions. [2021-12-16 04:20:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-16 04:20:04,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:04,560 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:04,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:20:04,561 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:04,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:04,561 INFO L85 PathProgramCache]: Analyzing trace with hash 86406559, now seen corresponding path program 1 times [2021-12-16 04:20:04,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:04,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618198787] [2021-12-16 04:20:04,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:04,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:04,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:04,797 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:04,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:04,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618198787] [2021-12-16 04:20:04,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618198787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:04,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:04,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:04,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600192394] [2021-12-16 04:20:04,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:04,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:04,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:04,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:04,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:04,800 INFO L87 Difference]: Start difference. First operand 957 states and 1285 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-16 04:20:05,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:05,533 INFO L93 Difference]: Finished difference Result 2409 states and 3177 transitions. [2021-12-16 04:20:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:20:05,534 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 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 174 [2021-12-16 04:20:05,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:05,541 INFO L225 Difference]: With dead ends: 2409 [2021-12-16 04:20:05,541 INFO L226 Difference]: Without dead ends: 1488 [2021-12-16 04:20:05,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:05,544 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 1070 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 1393 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:05,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 1393 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 04:20:05,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2021-12-16 04:20:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1410. [2021-12-16 04:20:05,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1014 states have (on average 1.2879684418145956) internal successors, (1306), 1045 states have internal predecessors, (1306), 264 states have call successors, (264), 128 states have call predecessors, (264), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-16 04:20:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1842 transitions. [2021-12-16 04:20:05,589 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1842 transitions. Word has length 174 [2021-12-16 04:20:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:05,590 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 1842 transitions. [2021-12-16 04:20:05,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-16 04:20:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1842 transitions. [2021-12-16 04:20:05,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-16 04:20:05,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:05,592 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:05,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:20:05,593 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:05,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1150095834, now seen corresponding path program 1 times [2021-12-16 04:20:05,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:05,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082093865] [2021-12-16 04:20:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:05,594 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:05,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:05,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:05,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082093865] [2021-12-16 04:20:05,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082093865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:05,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:05,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:20:05,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791043280] [2021-12-16 04:20:05,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:05,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:20:05,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:05,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:20:05,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:05,831 INFO L87 Difference]: Start difference. First operand 1410 states and 1842 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-16 04:20:06,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:06,859 INFO L93 Difference]: Finished difference Result 2856 states and 3733 transitions. [2021-12-16 04:20:06,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 04:20:06,859 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 173 [2021-12-16 04:20:06,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:06,869 INFO L225 Difference]: With dead ends: 2856 [2021-12-16 04:20:06,869 INFO L226 Difference]: Without dead ends: 1492 [2021-12-16 04:20:06,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-16 04:20:06,878 INFO L933 BasicCegarLoop]: 643 mSDtfsCounter, 374 mSDsluCounter, 2863 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:06,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 3506 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 04:20:06,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2021-12-16 04:20:06,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1413. [2021-12-16 04:20:06,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1017 states have (on average 1.2851524090462143) internal successors, (1307), 1048 states have internal predecessors, (1307), 264 states have call successors, (264), 128 states have call predecessors, (264), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-16 04:20:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1843 transitions. [2021-12-16 04:20:06,953 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1843 transitions. Word has length 173 [2021-12-16 04:20:06,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:06,954 INFO L470 AbstractCegarLoop]: Abstraction has 1413 states and 1843 transitions. [2021-12-16 04:20:06,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-16 04:20:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1843 transitions. [2021-12-16 04:20:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-16 04:20:06,957 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:06,957 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:06,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:20:06,958 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:06,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:06,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1207354136, now seen corresponding path program 1 times [2021-12-16 04:20:06,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:06,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506447498] [2021-12-16 04:20:06,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:06,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:07,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:07,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506447498] [2021-12-16 04:20:07,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506447498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:07,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:07,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:07,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698208704] [2021-12-16 04:20:07,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:07,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:07,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:07,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:07,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:07,265 INFO L87 Difference]: Start difference. First operand 1413 states and 1843 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 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) [2021-12-16 04:20:07,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:07,696 INFO L93 Difference]: Finished difference Result 1467 states and 1914 transitions. [2021-12-16 04:20:07,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:20:07,711 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), 3 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 173 [2021-12-16 04:20:07,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:07,717 INFO L225 Difference]: With dead ends: 1467 [2021-12-16 04:20:07,717 INFO L226 Difference]: Without dead ends: 1464 [2021-12-16 04:20:07,718 INFO L932 BasicCegarLoop]: 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 [2021-12-16 04:20:07,720 INFO L933 BasicCegarLoop]: 641 mSDtfsCounter, 1032 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:07,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 945 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 04:20:07,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2021-12-16 04:20:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1412. [2021-12-16 04:20:07,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1017 states have (on average 1.2841691248770895) internal successors, (1306), 1047 states have internal predecessors, (1306), 263 states have call successors, (263), 128 states have call predecessors, (263), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-16 04:20:07,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1841 transitions. [2021-12-16 04:20:07,805 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1841 transitions. Word has length 173 [2021-12-16 04:20:07,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:07,805 INFO L470 AbstractCegarLoop]: Abstraction has 1412 states and 1841 transitions. [2021-12-16 04:20:07,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 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) [2021-12-16 04:20:07,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1841 transitions. [2021-12-16 04:20:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-16 04:20:07,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:07,807 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:07,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:20:07,807 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:07,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1226843762, now seen corresponding path program 1 times [2021-12-16 04:20:07,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:07,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148388108] [2021-12-16 04:20:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:07,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,000 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:08,000 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:08,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148388108] [2021-12-16 04:20:08,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148388108] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:08,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:08,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:08,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014452197] [2021-12-16 04:20:08,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:08,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:08,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:08,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:08,002 INFO L87 Difference]: Start difference. First operand 1412 states and 1841 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 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) [2021-12-16 04:20:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:08,495 INFO L93 Difference]: Finished difference Result 1466 states and 1912 transitions. [2021-12-16 04:20:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:20:08,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 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 174 [2021-12-16 04:20:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:08,500 INFO L225 Difference]: With dead ends: 1466 [2021-12-16 04:20:08,500 INFO L226 Difference]: Without dead ends: 1463 [2021-12-16 04:20:08,501 INFO L932 BasicCegarLoop]: 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 [2021-12-16 04:20:08,501 INFO L933 BasicCegarLoop]: 640 mSDtfsCounter, 1029 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:08,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 943 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 04:20:08,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1463 states. [2021-12-16 04:20:08,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1463 to 1411. [2021-12-16 04:20:08,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1017 states have (on average 1.2831858407079646) internal successors, (1305), 1046 states have internal predecessors, (1305), 262 states have call successors, (262), 128 states have call predecessors, (262), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-16 04:20:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1839 transitions. [2021-12-16 04:20:08,538 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1839 transitions. Word has length 174 [2021-12-16 04:20:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:08,538 INFO L470 AbstractCegarLoop]: Abstraction has 1411 states and 1839 transitions. [2021-12-16 04:20:08,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 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) [2021-12-16 04:20:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1839 transitions. [2021-12-16 04:20:08,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-16 04:20:08,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:08,540 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:08,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 04:20:08,540 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:08,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:08,541 INFO L85 PathProgramCache]: Analyzing trace with hash 622437595, now seen corresponding path program 1 times [2021-12-16 04:20:08,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:08,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023922257] [2021-12-16 04:20:08,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:08,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:08,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:08,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:08,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023922257] [2021-12-16 04:20:08,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023922257] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:08,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:08,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:08,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96210045] [2021-12-16 04:20:08,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:08,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:08,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:08,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:08,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:08,743 INFO L87 Difference]: Start difference. First operand 1411 states and 1839 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 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) [2021-12-16 04:20:09,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:09,363 INFO L93 Difference]: Finished difference Result 1465 states and 1910 transitions. [2021-12-16 04:20:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:20:09,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 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 175 [2021-12-16 04:20:09,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:09,370 INFO L225 Difference]: With dead ends: 1465 [2021-12-16 04:20:09,371 INFO L226 Difference]: Without dead ends: 1462 [2021-12-16 04:20:09,371 INFO L932 BasicCegarLoop]: 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 [2021-12-16 04:20:09,372 INFO L933 BasicCegarLoop]: 636 mSDtfsCounter, 863 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:09,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [923 Valid, 1486 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 04:20:09,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2021-12-16 04:20:09,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1410. [2021-12-16 04:20:09,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 1017 states have (on average 1.2822025565388397) internal successors, (1304), 1045 states have internal predecessors, (1304), 261 states have call successors, (261), 128 states have call predecessors, (261), 131 states have return successors, (272), 252 states have call predecessors, (272), 256 states have call successors, (272) [2021-12-16 04:20:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1837 transitions. [2021-12-16 04:20:09,415 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1837 transitions. Word has length 175 [2021-12-16 04:20:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:09,415 INFO L470 AbstractCegarLoop]: Abstraction has 1410 states and 1837 transitions. [2021-12-16 04:20:09,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 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) [2021-12-16 04:20:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1837 transitions. [2021-12-16 04:20:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-16 04:20:09,418 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:09,418 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:09,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 04:20:09,418 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:09,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:09,418 INFO L85 PathProgramCache]: Analyzing trace with hash 841390464, now seen corresponding path program 1 times [2021-12-16 04:20:09,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:09,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510055248] [2021-12-16 04:20:09,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:09,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:09,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:09,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-16 04:20:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:09,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:09,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510055248] [2021-12-16 04:20:09,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510055248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:09,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:09,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:09,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301102319] [2021-12-16 04:20:09,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:09,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:09,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:09,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:09,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:09,618 INFO L87 Difference]: Start difference. First operand 1410 states and 1837 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-16 04:20:10,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:10,578 INFO L93 Difference]: Finished difference Result 2647 states and 3425 transitions. [2021-12-16 04:20:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:20:10,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 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 178 [2021-12-16 04:20:10,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:10,584 INFO L225 Difference]: With dead ends: 2647 [2021-12-16 04:20:10,585 INFO L226 Difference]: Without dead ends: 1283 [2021-12-16 04:20:10,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:10,588 INFO L933 BasicCegarLoop]: 979 mSDtfsCounter, 783 mSDsluCounter, 1237 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:10,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [831 Valid, 2216 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 04:20:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2021-12-16 04:20:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1210. [2021-12-16 04:20:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 882 states have (on average 1.2834467120181405) internal successors, (1132), 902 states have internal predecessors, (1132), 208 states have call successors, (208), 115 states have call predecessors, (208), 119 states have return successors, (217), 203 states have call predecessors, (217), 203 states have call successors, (217) [2021-12-16 04:20:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1557 transitions. [2021-12-16 04:20:10,631 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1557 transitions. Word has length 178 [2021-12-16 04:20:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:10,647 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 1557 transitions. [2021-12-16 04:20:10,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-16 04:20:10,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1557 transitions. [2021-12-16 04:20:10,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-12-16 04:20:10,649 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:10,649 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:10,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-16 04:20:10,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:10,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:10,650 INFO L85 PathProgramCache]: Analyzing trace with hash 2115589681, now seen corresponding path program 1 times [2021-12-16 04:20:10,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:10,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212241570] [2021-12-16 04:20:10,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:10,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2021-12-16 04:20:10,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:10,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212241570] [2021-12-16 04:20:10,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212241570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:10,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:10,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:20:10,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013479201] [2021-12-16 04:20:10,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:10,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:20:10,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:10,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:20:10,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:20:10,964 INFO L87 Difference]: Start difference. First operand 1210 states and 1557 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, (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) [2021-12-16 04:20:11,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:11,982 INFO L93 Difference]: Finished difference Result 3323 states and 4348 transitions. [2021-12-16 04:20:11,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:20:11,983 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, (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 176 [2021-12-16 04:20:11,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:11,994 INFO L225 Difference]: With dead ends: 3323 [2021-12-16 04:20:11,994 INFO L226 Difference]: Without dead ends: 2165 [2021-12-16 04:20:11,997 INFO L932 BasicCegarLoop]: 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 [2021-12-16 04:20:11,999 INFO L933 BasicCegarLoop]: 816 mSDtfsCounter, 998 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:11,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 1881 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-16 04:20:12,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2021-12-16 04:20:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 2069. [2021-12-16 04:20:12,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1539 states have (on average 1.3001949317738792) internal successors, (2001), 1575 states have internal predecessors, (2001), 341 states have call successors, (341), 190 states have call predecessors, (341), 188 states have return successors, (373), 323 states have call predecessors, (373), 333 states have call successors, (373) [2021-12-16 04:20:12,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2715 transitions. [2021-12-16 04:20:12,101 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2715 transitions. Word has length 176 [2021-12-16 04:20:12,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:12,101 INFO L470 AbstractCegarLoop]: Abstraction has 2069 states and 2715 transitions. [2021-12-16 04:20:12,101 INFO L471 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, (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) [2021-12-16 04:20:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2715 transitions. [2021-12-16 04:20:12,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-12-16 04:20:12,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:12,105 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2021-12-16 04:20:12,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-16 04:20:12,106 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:12,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:12,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1659045681, now seen corresponding path program 1 times [2021-12-16 04:20:12,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:12,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429011880] [2021-12-16 04:20:12,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:12,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-16 04:20:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-16 04:20:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-16 04:20:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-16 04:20:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:12,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2021-12-16 04:20:12,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:12,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429011880] [2021-12-16 04:20:12,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429011880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:12,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:12,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:20:12,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915100088] [2021-12-16 04:20:12,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:12,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:20:12,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:12,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:20:12,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:20:12,439 INFO L87 Difference]: Start difference. First operand 2069 states and 2715 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-16 04:20:13,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:13,826 INFO L93 Difference]: Finished difference Result 4985 states and 6554 transitions. [2021-12-16 04:20:13,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 04:20:13,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 230 [2021-12-16 04:20:13,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:13,838 INFO L225 Difference]: With dead ends: 4985 [2021-12-16 04:20:13,839 INFO L226 Difference]: Without dead ends: 2981 [2021-12-16 04:20:13,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-16 04:20:13,844 INFO L933 BasicCegarLoop]: 820 mSDtfsCounter, 1328 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 1710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:13,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 2586 Invalid, 1710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 04:20:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2981 states. [2021-12-16 04:20:13,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2981 to 2818. [2021-12-16 04:20:13,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2118 states have (on average 1.3097261567516525) internal successors, (2774), 2160 states have internal predecessors, (2774), 443 states have call successors, (443), 257 states have call predecessors, (443), 256 states have return successors, (492), 425 states have call predecessors, (492), 435 states have call successors, (492) [2021-12-16 04:20:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3709 transitions. [2021-12-16 04:20:13,925 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3709 transitions. Word has length 230 [2021-12-16 04:20:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:13,925 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3709 transitions. [2021-12-16 04:20:13,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-16 04:20:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3709 transitions. [2021-12-16 04:20:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-12-16 04:20:13,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:13,928 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:13,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-16 04:20:13,928 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:13,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash 305930133, now seen corresponding path program 1 times [2021-12-16 04:20:13,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:13,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039907819] [2021-12-16 04:20:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:13,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:14,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-16 04:20:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-16 04:20:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-16 04:20:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-16 04:20:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-16 04:20:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-16 04:20:14,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:14,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039907819] [2021-12-16 04:20:14,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039907819] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:14,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:14,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:20:14,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769388059] [2021-12-16 04:20:14,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:14,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:20:14,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:14,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:20:14,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:20:14,177 INFO L87 Difference]: Start difference. First operand 2818 states and 3709 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:14,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:14,940 INFO L93 Difference]: Finished difference Result 5725 states and 7551 transitions. [2021-12-16 04:20:14,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 04:20:14,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 257 [2021-12-16 04:20:14,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:14,953 INFO L225 Difference]: With dead ends: 5725 [2021-12-16 04:20:14,953 INFO L226 Difference]: Without dead ends: 2972 [2021-12-16 04:20:14,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:14,961 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 482 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:14,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 1672 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 04:20:14,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-12-16 04:20:15,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2818. [2021-12-16 04:20:15,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2818 states, 2118 states have (on average 1.2983947119924457) internal successors, (2750), 2160 states have internal predecessors, (2750), 443 states have call successors, (443), 257 states have call predecessors, (443), 256 states have return successors, (492), 425 states have call predecessors, (492), 435 states have call successors, (492) [2021-12-16 04:20:15,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2818 states to 2818 states and 3685 transitions. [2021-12-16 04:20:15,064 INFO L78 Accepts]: Start accepts. Automaton has 2818 states and 3685 transitions. Word has length 257 [2021-12-16 04:20:15,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:15,066 INFO L470 AbstractCegarLoop]: Abstraction has 2818 states and 3685 transitions. [2021-12-16 04:20:15,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2818 states and 3685 transitions. [2021-12-16 04:20:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-16 04:20:15,069 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:15,069 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:15,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 04:20:15,069 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:15,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash -301822157, now seen corresponding path program 1 times [2021-12-16 04:20:15,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:15,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170162026] [2021-12-16 04:20:15,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:15,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:15,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-16 04:20:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-16 04:20:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-16 04:20:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-16 04:20:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:15,393 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-12-16 04:20:15,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:15,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170162026] [2021-12-16 04:20:15,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170162026] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:15,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:15,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:20:15,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100240418] [2021-12-16 04:20:15,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:15,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:20:15,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:15,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:20:15,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:15,396 INFO L87 Difference]: Start difference. First operand 2818 states and 3685 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:17,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:17,201 INFO L93 Difference]: Finished difference Result 6977 states and 9105 transitions. [2021-12-16 04:20:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 04:20:17,202 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 258 [2021-12-16 04:20:17,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:17,219 INFO L225 Difference]: With dead ends: 6977 [2021-12-16 04:20:17,220 INFO L226 Difference]: Without dead ends: 4224 [2021-12-16 04:20:17,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2021-12-16 04:20:17,229 INFO L933 BasicCegarLoop]: 1171 mSDtfsCounter, 1178 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 4260 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:17,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 4260 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-16 04:20:17,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4224 states. [2021-12-16 04:20:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4224 to 2826. [2021-12-16 04:20:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2126 states have (on average 1.297271872060207) internal successors, (2758), 2168 states have internal predecessors, (2758), 443 states have call successors, (443), 257 states have call predecessors, (443), 256 states have return successors, (492), 425 states have call predecessors, (492), 435 states have call successors, (492) [2021-12-16 04:20:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3693 transitions. [2021-12-16 04:20:17,359 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3693 transitions. Word has length 258 [2021-12-16 04:20:17,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:17,359 INFO L470 AbstractCegarLoop]: Abstraction has 2826 states and 3693 transitions. [2021-12-16 04:20:17,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (28), 7 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3693 transitions. [2021-12-16 04:20:17,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-16 04:20:17,362 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:17,362 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:17,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-16 04:20:17,362 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:17,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:17,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1028582416, now seen corresponding path program 1 times [2021-12-16 04:20:17,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:17,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399939183] [2021-12-16 04:20:17,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:17,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:17,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-16 04:20:17,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:17,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399939183] [2021-12-16 04:20:17,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399939183] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:17,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:17,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:20:17,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710145021] [2021-12-16 04:20:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:17,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:20:17,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:20:17,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:20:17,642 INFO L87 Difference]: Start difference. First operand 2826 states and 3693 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:18,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:18,883 INFO L93 Difference]: Finished difference Result 5735 states and 7484 transitions. [2021-12-16 04:20:18,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:20:18,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2021-12-16 04:20:18,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:18,893 INFO L225 Difference]: With dead ends: 5735 [2021-12-16 04:20:18,893 INFO L226 Difference]: Without dead ends: 2974 [2021-12-16 04:20:18,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-16 04:20:18,898 INFO L933 BasicCegarLoop]: 929 mSDtfsCounter, 910 mSDsluCounter, 2171 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 403 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:18,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 3100 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 04:20:18,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2974 states. [2021-12-16 04:20:18,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2974 to 2777. [2021-12-16 04:20:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2777 states, 2096 states have (on average 1.2948473282442747) internal successors, (2714), 2135 states have internal predecessors, (2714), 427 states have call successors, (427), 247 states have call predecessors, (427), 253 states have return successors, (442), 419 states have call predecessors, (442), 410 states have call successors, (442) [2021-12-16 04:20:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3583 transitions. [2021-12-16 04:20:18,980 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3583 transitions. Word has length 259 [2021-12-16 04:20:18,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:18,981 INFO L470 AbstractCegarLoop]: Abstraction has 2777 states and 3583 transitions. [2021-12-16 04:20:18,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (27), 7 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:18,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3583 transitions. [2021-12-16 04:20:18,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-16 04:20:18,983 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:18,983 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:18,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 04:20:18,984 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:18,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:18,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1986521202, now seen corresponding path program 1 times [2021-12-16 04:20:18,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:18,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291522740] [2021-12-16 04:20:18,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:18,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:19,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-12-16 04:20:19,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:19,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291522740] [2021-12-16 04:20:19,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291522740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:19,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:19,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:20:19,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031133488] [2021-12-16 04:20:19,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:19,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:20:19,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:19,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:20:19,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:19,284 INFO L87 Difference]: Start difference. First operand 2777 states and 3583 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:20,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:20,699 INFO L93 Difference]: Finished difference Result 5712 states and 8166 transitions. [2021-12-16 04:20:20,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:20:20,699 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 259 [2021-12-16 04:20:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:20,749 INFO L225 Difference]: With dead ends: 5712 [2021-12-16 04:20:20,763 INFO L226 Difference]: Without dead ends: 5695 [2021-12-16 04:20:20,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:20:20,767 INFO L933 BasicCegarLoop]: 1264 mSDtfsCounter, 1784 mSDsluCounter, 3761 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1842 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 1952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 741 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:20,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1842 Valid, 5025 Invalid, 1952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [741 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 04:20:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5695 states. [2021-12-16 04:20:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5695 to 2769. [2021-12-16 04:20:20,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2092 states have (on average 1.2944550669216062) internal successors, (2708), 2129 states have internal predecessors, (2708), 424 states have call successors, (424), 246 states have call predecessors, (424), 252 states have return successors, (440), 418 states have call predecessors, (440), 408 states have call successors, (440) [2021-12-16 04:20:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3572 transitions. [2021-12-16 04:20:20,933 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3572 transitions. Word has length 259 [2021-12-16 04:20:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:20,933 INFO L470 AbstractCegarLoop]: Abstraction has 2769 states and 3572 transitions. [2021-12-16 04:20:20,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-16 04:20:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3572 transitions. [2021-12-16 04:20:20,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-12-16 04:20:20,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:20,935 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:20,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-16 04:20:20,936 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:20,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:20,936 INFO L85 PathProgramCache]: Analyzing trace with hash -73076388, now seen corresponding path program 1 times [2021-12-16 04:20:20,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:20,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121653327] [2021-12-16 04:20:20,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:20,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:21,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:21,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:21,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-16 04:20:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-16 04:20:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-16 04:20:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-16 04:20:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:21,239 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 447 trivial. 0 not checked. [2021-12-16 04:20:21,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:21,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121653327] [2021-12-16 04:20:21,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121653327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:21,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:21,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:20:21,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642041578] [2021-12-16 04:20:21,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:21,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:20:21,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:21,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:20:21,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:20:21,241 INFO L87 Difference]: Start difference. First operand 2769 states and 3572 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-16 04:20:22,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:22,658 INFO L93 Difference]: Finished difference Result 7988 states and 11013 transitions. [2021-12-16 04:20:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:20:22,658 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 292 [2021-12-16 04:20:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:22,678 INFO L225 Difference]: With dead ends: 7988 [2021-12-16 04:20:22,678 INFO L226 Difference]: Without dead ends: 5284 [2021-12-16 04:20:22,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-12-16 04:20:22,689 INFO L933 BasicCegarLoop]: 834 mSDtfsCounter, 1781 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 985 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1792 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 985 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:22,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1792 Valid, 3150 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [985 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-16 04:20:22,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2021-12-16 04:20:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 2762. [2021-12-16 04:20:22,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2089 states have (on average 1.2939205361416946) internal successors, (2703), 2124 states have internal predecessors, (2703), 422 states have call successors, (422), 244 states have call predecessors, (422), 250 states have return successors, (438), 416 states have call predecessors, (438), 406 states have call successors, (438) [2021-12-16 04:20:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 3563 transitions. [2021-12-16 04:20:22,804 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 3563 transitions. Word has length 292 [2021-12-16 04:20:22,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:22,805 INFO L470 AbstractCegarLoop]: Abstraction has 2762 states and 3563 transitions. [2021-12-16 04:20:22,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-16 04:20:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 3563 transitions. [2021-12-16 04:20:22,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-16 04:20:22,808 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:22,808 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:22,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-16 04:20:22,808 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:22,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:22,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1571422651, now seen corresponding path program 1 times [2021-12-16 04:20:22,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:22,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081200928] [2021-12-16 04:20:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:22,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:22,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-16 04:20:23,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-16 04:20:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-16 04:20:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 04:20:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:20:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-16 04:20:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-16 04:20:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 653 trivial. 0 not checked. [2021-12-16 04:20:23,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:23,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081200928] [2021-12-16 04:20:23,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081200928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:23,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:23,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 04:20:23,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190644473] [2021-12-16 04:20:23,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:23,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 04:20:23,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:23,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 04:20:23,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:20:23,167 INFO L87 Difference]: Start difference. First operand 2762 states and 3563 transitions. Second operand has 10 states, 10 states have (on average 13.8) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-16 04:20:25,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:25,598 INFO L93 Difference]: Finished difference Result 7972 states and 10577 transitions. [2021-12-16 04:20:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-16 04:20:25,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 347 [2021-12-16 04:20:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:25,610 INFO L225 Difference]: With dead ends: 7972 [2021-12-16 04:20:25,610 INFO L226 Difference]: Without dead ends: 5275 [2021-12-16 04:20:25,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-12-16 04:20:25,618 INFO L933 BasicCegarLoop]: 744 mSDtfsCounter, 1951 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 945 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2045 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 3138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 945 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:25,618 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2045 Valid, 3724 Invalid, 3138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [945 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-16 04:20:25,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5275 states. [2021-12-16 04:20:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5275 to 2764. [2021-12-16 04:20:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2091 states have (on average 1.2936394069823052) internal successors, (2705), 2126 states have internal predecessors, (2705), 422 states have call successors, (422), 244 states have call predecessors, (422), 250 states have return successors, (438), 416 states have call predecessors, (438), 406 states have call successors, (438) [2021-12-16 04:20:25,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3565 transitions. [2021-12-16 04:20:25,737 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3565 transitions. Word has length 347 [2021-12-16 04:20:25,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:25,738 INFO L470 AbstractCegarLoop]: Abstraction has 2764 states and 3565 transitions. [2021-12-16 04:20:25,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.8) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-16 04:20:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3565 transitions. [2021-12-16 04:20:25,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-12-16 04:20:25,741 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:25,741 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:25,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-16 04:20:25,741 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:25,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:25,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1177055865, now seen corresponding path program 1 times [2021-12-16 04:20:25,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:25,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979509825] [2021-12-16 04:20:25,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:25,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:25,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:25,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-16 04:20:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-16 04:20:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-16 04:20:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 04:20:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:20:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 321 [2021-12-16 04:20:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-16 04:20:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-16 04:20:26,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:26,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979509825] [2021-12-16 04:20:26,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979509825] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:26,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:26,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 04:20:26,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124448982] [2021-12-16 04:20:26,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:26,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 04:20:26,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:26,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 04:20:26,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:20:26,096 INFO L87 Difference]: Start difference. First operand 2764 states and 3565 transitions. Second operand has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-16 04:20:27,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:27,163 INFO L93 Difference]: Finished difference Result 2948 states and 3791 transitions. [2021-12-16 04:20:27,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:20:27,163 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 347 [2021-12-16 04:20:27,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:27,170 INFO L225 Difference]: With dead ends: 2948 [2021-12-16 04:20:27,171 INFO L226 Difference]: Without dead ends: 2898 [2021-12-16 04:20:27,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2021-12-16 04:20:27,172 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 802 mSDsluCounter, 2715 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:27,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 3337 Invalid, 1996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-16 04:20:27,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2021-12-16 04:20:27,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2728. [2021-12-16 04:20:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2728 states, 2059 states have (on average 1.2875182127246236) internal successors, (2651), 2093 states have internal predecessors, (2651), 418 states have call successors, (418), 244 states have call predecessors, (418), 250 states have return successors, (435), 413 states have call predecessors, (435), 403 states have call successors, (435) [2021-12-16 04:20:27,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 3504 transitions. [2021-12-16 04:20:27,276 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 3504 transitions. Word has length 347 [2021-12-16 04:20:27,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:27,277 INFO L470 AbstractCegarLoop]: Abstraction has 2728 states and 3504 transitions. [2021-12-16 04:20:27,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.333333333333334) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (37), 8 states have call predecessors, (37), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-16 04:20:27,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 3504 transitions. [2021-12-16 04:20:27,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-12-16 04:20:27,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:27,281 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:27,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-16 04:20:27,281 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:27,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:27,282 INFO L85 PathProgramCache]: Analyzing trace with hash -845885553, now seen corresponding path program 1 times [2021-12-16 04:20:27,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:27,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136657342] [2021-12-16 04:20:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:27,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:27,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:27,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:27,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-16 04:20:27,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-16 04:20:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-16 04:20:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 04:20:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:20:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-16 04:20:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-16 04:20:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:27,631 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-16 04:20:27,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:27,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136657342] [2021-12-16 04:20:27,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136657342] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:27,631 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:27,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 04:20:27,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846361733] [2021-12-16 04:20:27,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:27,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 04:20:27,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:27,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 04:20:27,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:20:27,633 INFO L87 Difference]: Start difference. First operand 2728 states and 3504 transitions. Second operand has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-16 04:20:29,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:29,554 INFO L93 Difference]: Finished difference Result 5077 states and 7121 transitions. [2021-12-16 04:20:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:20:29,575 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 354 [2021-12-16 04:20:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:29,590 INFO L225 Difference]: With dead ends: 5077 [2021-12-16 04:20:29,590 INFO L226 Difference]: Without dead ends: 4838 [2021-12-16 04:20:29,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-12-16 04:20:29,593 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 1330 mSDsluCounter, 5454 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 586 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1387 SdHoareTripleChecker+Valid, 6449 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 586 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:29,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1387 Valid, 6449 Invalid, 2786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [586 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-12-16 04:20:29,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2021-12-16 04:20:29,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 2566. [2021-12-16 04:20:29,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 1944 states have (on average 1.287551440329218) internal successors, (2503), 1972 states have internal predecessors, (2503), 382 states have call successors, (382), 232 states have call predecessors, (382), 239 states have return successors, (401), 381 states have call predecessors, (401), 369 states have call successors, (401) [2021-12-16 04:20:29,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3286 transitions. [2021-12-16 04:20:29,716 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3286 transitions. Word has length 354 [2021-12-16 04:20:29,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:29,717 INFO L470 AbstractCegarLoop]: Abstraction has 2566 states and 3286 transitions. [2021-12-16 04:20:29,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.0) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (36), 8 states have call predecessors, (36), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-16 04:20:29,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3286 transitions. [2021-12-16 04:20:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-16 04:20:29,720 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:29,720 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:29,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-16 04:20:29,720 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:29,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash -576915514, now seen corresponding path program 1 times [2021-12-16 04:20:29,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:29,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377983776] [2021-12-16 04:20:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:29,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:29,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:29,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:29,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:29,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-16 04:20:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-16 04:20:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-16 04:20:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 04:20:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:20:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:30,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:30,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-12-16 04:20:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-16 04:20:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2021-12-16 04:20:30,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:30,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377983776] [2021-12-16 04:20:30,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377983776] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:30,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:30,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 04:20:30,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665976878] [2021-12-16 04:20:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:30,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 04:20:30,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:30,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 04:20:30,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:20:30,118 INFO L87 Difference]: Start difference. First operand 2566 states and 3286 transitions. Second operand has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-16 04:20:31,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:31,408 INFO L93 Difference]: Finished difference Result 5241 states and 6735 transitions. [2021-12-16 04:20:31,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:20:31,409 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 356 [2021-12-16 04:20:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:31,416 INFO L225 Difference]: With dead ends: 5241 [2021-12-16 04:20:31,416 INFO L226 Difference]: Without dead ends: 2740 [2021-12-16 04:20:31,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-12-16 04:20:31,435 INFO L933 BasicCegarLoop]: 627 mSDtfsCounter, 727 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 1491 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 3614 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 1491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:31,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [738 Valid, 3614 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 1491 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-16 04:20:31,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2021-12-16 04:20:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2584. [2021-12-16 04:20:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 1962 states have (on average 1.289500509683996) internal successors, (2530), 1993 states have internal predecessors, (2530), 385 states have call successors, (385), 232 states have call predecessors, (385), 236 states have return successors, (398), 378 states have call predecessors, (398), 372 states have call successors, (398) [2021-12-16 04:20:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 3313 transitions. [2021-12-16 04:20:31,638 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 3313 transitions. Word has length 356 [2021-12-16 04:20:31,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:31,639 INFO L470 AbstractCegarLoop]: Abstraction has 2584 states and 3313 transitions. [2021-12-16 04:20:31,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.583333333333334) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (39), 8 states have call predecessors, (39), 3 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-16 04:20:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 3313 transitions. [2021-12-16 04:20:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-12-16 04:20:31,643 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:20:31,644 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:20:31,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-16 04:20:31,659 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:20:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:20:31,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1078465444, now seen corresponding path program 1 times [2021-12-16 04:20:31,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:20:31,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060687409] [2021-12-16 04:20:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:20:31,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:20:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 04:20:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 04:20:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-16 04:20:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 04:20:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-16 04:20:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-16 04:20:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-16 04:20:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:20:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-16 04:20:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-16 04:20:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-16 04:20:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-16 04:20:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-16 04:20:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-16 04:20:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-16 04:20:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-16 04:20:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-16 04:20:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-16 04:20:32,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-12-16 04:20:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-16 04:20:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-16 04:20:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-16 04:20:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-16 04:20:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-16 04:20:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-16 04:20:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 04:20:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-16 04:20:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-16 04:20:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-12-16 04:20:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-12-16 04:20:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:20:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:20:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2021-12-16 04:20:32,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:20:32,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060687409] [2021-12-16 04:20:32,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060687409] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:20:32,172 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:20:32,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 04:20:32,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278860344] [2021-12-16 04:20:32,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:20:32,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 04:20:32,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:20:32,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 04:20:32,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:20:32,175 INFO L87 Difference]: Start difference. First operand 2584 states and 3313 transitions. Second operand has 12 states, 12 states have (on average 12.75) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-16 04:20:34,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:20:34,417 INFO L93 Difference]: Finished difference Result 3900 states and 5302 transitions. [2021-12-16 04:20:34,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-16 04:20:34,418 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) Word has length 362 [2021-12-16 04:20:34,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:20:34,419 INFO L225 Difference]: With dead ends: 3900 [2021-12-16 04:20:34,419 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 04:20:34,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2021-12-16 04:20:34,455 INFO L933 BasicCegarLoop]: 1217 mSDtfsCounter, 976 mSDsluCounter, 7311 mSDsCounter, 0 mSdLazyCounter, 2616 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 8528 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:20:34,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1036 Valid, 8528 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2616 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-12-16 04:20:34,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 04:20:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 04:20:34,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 04:20:34,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 04:20:34,462 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2021-12-16 04:20:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:20:34,462 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 04:20:34,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.75) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 1 states have call successors, (34) [2021-12-16 04:20:34,462 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 04:20:34,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 04:20:34,465 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 04:20:34,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-16 04:20:34,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.