./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--gpu--drm--ast--ast.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--gpu--drm--ast--ast.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 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 06:35:17,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 06:35:17,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 06:35:17,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 06:35:17,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 06:35:17,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 06:35:17,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 06:35:17,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 06:35:17,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 06:35:17,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 06:35:17,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 06:35:17,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 06:35:17,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 06:35:17,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 06:35:17,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 06:35:17,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 06:35:17,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 06:35:17,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 06:35:17,560 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 06:35:17,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 06:35:17,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 06:35:17,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 06:35:17,567 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 06:35:17,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 06:35:17,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 06:35:17,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 06:35:17,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 06:35:17,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 06:35:17,576 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 06:35:17,577 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 06:35:17,577 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 06:35:17,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 06:35:17,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 06:35:17,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 06:35:17,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 06:35:17,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 06:35:17,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 06:35:17,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 06:35:17,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 06:35:17,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 06:35:17,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 06:35:17,584 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 06:35:17,611 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 06:35:17,612 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 06:35:17,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 06:35:17,613 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 06:35:17,613 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 06:35:17,614 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 06:35:17,614 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 06:35:17,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 06:35:17,614 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 06:35:17,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 06:35:17,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 06:35:17,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 06:35:17,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 06:35:17,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 06:35:17,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 06:35:17,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 06:35:17,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 06:35:17,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 06:35:17,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 06:35:17,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 06:35:17,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 06:35:17,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 06:35:17,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 06:35:17,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 06:35:17,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 06:35:17,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 06:35:17,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 06:35:17,625 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 06:35:17,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 06:35:17,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 06:35:17,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 06:35:17,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3ac2fcc053a51503ae18580c98d5f9812f019f35610d9038863980fd24a66a [2021-12-18 06:35:17,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 06:35:17,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 06:35:17,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 06:35:17,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 06:35:17,850 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 06:35:17,851 INFO L432 ainManager$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--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-12-18 06:35:17,897 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c004a25fa/382c21915cf240738ea99026b8f2923e/FLAG9a10eec8a [2021-12-18 06:35:18,708 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 06:35:18,709 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--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-12-18 06:35:18,771 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c004a25fa/382c21915cf240738ea99026b8f2923e/FLAG9a10eec8a [2021-12-18 06:35:18,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c004a25fa/382c21915cf240738ea99026b8f2923e [2021-12-18 06:35:18,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 06:35:18,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 06:35:18,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 06:35:18,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 06:35:18,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 06:35:18,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:35:18" (1/1) ... [2021-12-18 06:35:18,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1b8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:18, skipping insertion in model container [2021-12-18 06:35:18,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:35:18" (1/1) ... [2021-12-18 06:35:18,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 06:35:19,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 06:35:23,037 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--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2021-12-18 06:35:23,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 06:35:23,456 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 06:35:23,896 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--gpu--drm--ast--ast.ko-entry_point.cil.out.i[423705,423718] [2021-12-18 06:35:23,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 06:35:24,222 INFO L208 MainTranslator]: Completed translation [2021-12-18 06:35:24,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24 WrapperNode [2021-12-18 06:35:24,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 06:35:24,241 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 06:35:24,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 06:35:24,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 06:35:24,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:24,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:24,774 INFO L137 Inliner]: procedures = 649, calls = 4702, calls flagged for inlining = 324, calls inlined = 315, statements flattened = 11813 [2021-12-18 06:35:24,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 06:35:24,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 06:35:24,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 06:35:24,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 06:35:24,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:24,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:24,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:24,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:25,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:25,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:25,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:25,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 06:35:25,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 06:35:25,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 06:35:25,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 06:35:25,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (1/1) ... [2021-12-18 06:35:25,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 06:35:25,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 06:35:25,272 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) [2021-12-18 06:35:25,281 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 [2021-12-18 06:35:25,307 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2021-12-18 06:35:25,308 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2021-12-18 06:35:25,308 INFO L130 BoogieDeclarations]: Found specification of procedure wait_nack [2021-12-18 06:35:25,308 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_nack [2021-12-18 06:35:25,308 INFO L130 BoogieDeclarations]: Found specification of procedure wait_ack [2021-12-18 06:35:25,308 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_ack [2021-12-18 06:35:25,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 06:35:25,309 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 06:35:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure clear_cmd_trigger [2021-12-18 06:35:25,309 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_cmd_trigger [2021-12-18 06:35:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 06:35:25,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 06:35:25,309 INFO L130 BoogieDeclarations]: Found specification of procedure ast_init_dvo [2021-12-18 06:35:25,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_init_dvo [2021-12-18 06:35:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_freeze [2021-12-18 06:35:25,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_freeze [2021-12-18 06:35:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes [2021-12-18 06:35:25,310 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes [2021-12-18 06:35:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2021-12-18 06:35:25,310 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2021-12-18 06:35:25,310 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 06:35:25,311 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 06:35:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock [2021-12-18 06:35:25,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock [2021-12-18 06:35:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_base_of_ww_mutex [2021-12-18 06:35:25,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_base_of_ww_mutex [2021-12-18 06:35:25,311 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_dpms [2021-12-18 06:35:25,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_dpms [2021-12-18 06:35:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_dp501_video_output [2021-12-18 06:35:25,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_dp501_video_output [2021-12-18 06:35:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_pin [2021-12-18 06:35:25,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_pin [2021-12-18 06:35:25,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-18 06:35:25,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_struct_mutex_of_drm_device [2021-12-18 06:35:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure ast_read32 [2021-12-18 06:35:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_read32 [2021-12-18 06:35:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-18 06:35:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-18 06:35:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 06:35:25,313 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 06:35:25,313 INFO L130 BoogieDeclarations]: Found specification of procedure cbr_dll2 [2021-12-18 06:35:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure cbr_dll2 [2021-12-18 06:35:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_fixup [2021-12-18 06:35:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_fixup [2021-12-18 06:35:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 06:35:25,314 INFO L130 BoogieDeclarations]: Found specification of procedure ast_drm_thaw [2021-12-18 06:35:25,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_drm_thaw [2021-12-18 06:35:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ast_dirty_update [2021-12-18 06:35:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_dirty_update [2021-12-18 06:35:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_vga [2021-12-18 06:35:25,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_vga [2021-12-18 06:35:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 06:35:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 06:35:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg_mask [2021-12-18 06:35:25,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg_mask [2021-12-18 06:35:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2021-12-18 06:35:25,317 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2021-12-18 06:35:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kmap [2021-12-18 06:35:25,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kmap [2021-12-18 06:35:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_del_sub_from_lru [2021-12-18 06:35:25,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_del_sub_from_lru [2021-12-18 06:35:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_placement [2021-12-18 06:35:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_placement [2021-12-18 06:35:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_load_lut [2021-12-18 06:35:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_load_lut [2021-12-18 06:35:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 06:35:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mindwm [2021-12-18 06:35:25,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mindwm [2021-12-18 06:35:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_kunmap [2021-12-18 06:35:25,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_kunmap [2021-12-18 06:35:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2021-12-18 06:35:25,320 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2021-12-18 06:35:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 06:35:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure ast_user_framebuffer_destroy [2021-12-18 06:35:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_user_framebuffer_destroy [2021-12-18 06:35:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure send_ack [2021-12-18 06:35:25,321 INFO L138 BoogieDeclarations]: Found implementation of procedure send_ack [2021-12-18 06:35:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_disable [2021-12-18 06:35:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_disable [2021-12-18 06:35:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 06:35:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set_base [2021-12-18 06:35:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set_base [2021-12-18 06:35:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-12-18 06:35:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-12-18 06:35:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure get_fw_base [2021-12-18 06:35:25,322 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fw_base [2021-12-18 06:35:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_read8 [2021-12-18 06:35:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_read8 [2021-12-18 06:35:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 06:35:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 06:35:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 06:35:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure ast_post_gpu [2021-12-18 06:35:25,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_post_gpu [2021-12-18 06:35:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 06:35:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_gamma_set [2021-12-18 06:35:25,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_gamma_set [2021-12-18 06:35:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2021-12-18 06:35:25,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_base_of_ww_mutex [2021-12-18 06:35:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 06:35:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 06:35:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 06:35:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 06:35:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure ast_fbdev_set_suspend [2021-12-18 06:35:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_fbdev_set_suspend [2021-12-18 06:35:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 06:35:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 06:35:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure ast_framebuffer_init [2021-12-18 06:35:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_framebuffer_init [2021-12-18 06:35:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_set [2021-12-18 06:35:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_set [2021-12-18 06:35:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure ast_open_key [2021-12-18 06:35:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_open_key [2021-12-18 06:35:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2021-12-18 06:35:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2021-12-18 06:35:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_burst2 [2021-12-18 06:35:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_burst2 [2021-12-18 06:35:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 06:35:25,329 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 06:35:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_unreserve [2021-12-18 06:35:25,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_unreserve [2021-12-18 06:35:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 06:35:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 06:35:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 06:35:25,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 06:35:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 06:35:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 06:35:25,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 06:35:25,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 06:35:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure send_nack [2021-12-18 06:35:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure send_nack [2021-12-18 06:35:25,338 INFO L130 BoogieDeclarations]: Found specification of procedure ast_enable_mmio [2021-12-18 06:35:25,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_enable_mmio [2021-12-18 06:35:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_detect [2021-12-18 06:35:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_detect [2021-12-18 06:35:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-18 06:35:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_prepare [2021-12-18 06:35:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_prepare [2021-12-18 06:35:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ast_get_index_reg_mask [2021-12-18 06:35:25,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_get_index_reg_mask [2021-12-18 06:35:25,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_base_of_ww_mutex [2021-12-18 06:35:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_base_of_ww_mutex [2021-12-18 06:35:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2021-12-18 06:35:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2021-12-18 06:35:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_create [2021-12-18 06:35:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_create [2021-12-18 06:35:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_prepare [2021-12-18 06:35:25,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_prepare [2021-12-18 06:35:25,340 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 06:35:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 06:35:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 06:35:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 06:35:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_reserve [2021-12-18 06:35:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_reserve [2021-12-18 06:35:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-18 06:35:25,341 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-18 06:35:25,341 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 06:35:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 06:35:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2021-12-18 06:35:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2021-12-18 06:35:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure ast_mmap [2021-12-18 06:35:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_mmap [2021-12-18 06:35:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 06:35:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 06:35:25,342 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 06:35:25,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 06:35:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 06:35:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2021-12-18 06:35:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_free [2021-12-18 06:35:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_mutex_54 [2021-12-18 06:35:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_mutex_54 [2021-12-18 06:35:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2021-12-18 06:35:25,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-18 06:35:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_struct_mutex_of_drm_device [2021-12-18 06:35:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 06:35:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure __ww_mutex_lock_interruptible [2021-12-18 06:35:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __ww_mutex_lock_interruptible [2021-12-18 06:35:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-12-18 06:35:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-12-18 06:35:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure ast_connector_destroy [2021-12-18 06:35:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_connector_destroy [2021-12-18 06:35:25,344 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_commit [2021-12-18 06:35:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_commit [2021-12-18 06:35:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 06:35:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pm_resume [2021-12-18 06:35:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pm_resume [2021-12-18 06:35:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 06:35:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 06:35:25,345 INFO L130 BoogieDeclarations]: Found specification of procedure ast_io_write8 [2021-12-18 06:35:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_io_write8 [2021-12-18 06:35:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_kmap_obj_virtual [2021-12-18 06:35:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_kmap_obj_virtual [2021-12-18 06:35:25,346 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_destroy [2021-12-18 06:35:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_destroy [2021-12-18 06:35:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo_gpu_offset [2021-12-18 06:35:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo_gpu_offset [2021-12-18 06:35:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure ast_write32 [2021-12-18 06:35:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_write32 [2021-12-18 06:35:25,347 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_reset [2021-12-18 06:35:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_reset [2021-12-18 06:35:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure ast_gem_free_object [2021-12-18 06:35:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_gem_free_object [2021-12-18 06:35:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked___0 [2021-12-18 06:35:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked___0 [2021-12-18 06:35:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_backend_destroy [2021-12-18 06:35:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_backend_destroy [2021-12-18 06:35:25,348 INFO L130 BoogieDeclarations]: Found specification of procedure ast_pci_remove [2021-12-18 06:35:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_pci_remove [2021-12-18 06:35:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2021-12-18 06:35:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2021-12-18 06:35:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_mode_set [2021-12-18 06:35:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_mode_set [2021-12-18 06:35:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_test_single2 [2021-12-18 06:35:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_test_single2 [2021-12-18 06:35:25,349 INFO L130 BoogieDeclarations]: Found specification of procedure ast_bo [2021-12-18 06:35:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_bo [2021-12-18 06:35:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 06:35:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 06:35:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 06:35:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure ast_moutdwm [2021-12-18 06:35:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_moutdwm [2021-12-18 06:35:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure ast_set_index_reg [2021-12-18 06:35:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_set_index_reg [2021-12-18 06:35:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure cbrdlli_ast2150 [2021-12-18 06:35:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure cbrdlli_ast2150 [2021-12-18 06:35:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 06:35:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 06:35:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2021-12-18 06:35:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2021-12-18 06:35:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-18 06:35:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-18 06:35:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure ast_encoder_commit [2021-12-18 06:35:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_encoder_commit [2021-12-18 06:35:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2021-12-18 06:35:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2021-12-18 06:35:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2021-12-18 06:35:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2021-12-18 06:35:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-12-18 06:35:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-12-18 06:35:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure ast_cursor_move [2021-12-18 06:35:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_cursor_move [2021-12-18 06:35:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-12-18 06:35:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-12-18 06:35:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2021-12-18 06:35:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2021-12-18 06:35:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_connector_update_edid_property [2021-12-18 06:35:25,354 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_connector_update_edid_property [2021-12-18 06:35:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-18 06:35:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-18 06:35:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure ast_ttm_tt_unpopulate [2021-12-18 06:35:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_ttm_tt_unpopulate [2021-12-18 06:35:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2021-12-18 06:35:25,357 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2021-12-18 06:35:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure ast_crtc_destroy [2021-12-18 06:35:25,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ast_crtc_destroy [2021-12-18 06:35:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 06:35:26,616 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 06:35:26,621 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 06:35:26,775 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 06:35:36,699 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 06:35:36,730 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 06:35:36,730 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 06:35:36,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:35:36 BoogieIcfgContainer [2021-12-18 06:35:36,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 06:35:36,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 06:35:36,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 06:35:36,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 06:35:36,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:35:18" (1/3) ... [2021-12-18 06:35:36,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243c0363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:35:36, skipping insertion in model container [2021-12-18 06:35:36,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:35:24" (2/3) ... [2021-12-18 06:35:36,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@243c0363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:35:36, skipping insertion in model container [2021-12-18 06:35:36,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:35:36" (3/3) ... [2021-12-18 06:35:36,742 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--ast--ast.ko-entry_point.cil.out.i [2021-12-18 06:35:36,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 06:35:36,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 06:35:36,805 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 06:35:36,810 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 [2021-12-18 06:35:36,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 06:35:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 3427 states, 2417 states have (on average 1.419528340918494) internal successors, (3431), 2508 states have internal predecessors, (3431), 891 states have call successors, (891), 118 states have call predecessors, (891), 117 states have return successors, (873), 850 states have call predecessors, (873), 873 states have call successors, (873) [2021-12-18 06:35:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-18 06:35:36,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:35:36,888 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:35:36,888 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:35:36,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:35:36,893 INFO L85 PathProgramCache]: Analyzing trace with hash 179383820, now seen corresponding path program 1 times [2021-12-18 06:35:36,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:35:36,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245952096] [2021-12-18 06:35:36,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:35:36,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:35:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:35:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:35:37,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:35:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:35:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:35:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:35:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:35:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:35:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:35:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:37,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:37,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:35:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:35:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:35:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:35:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:35:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:35:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:35:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:35:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:38,156 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:35:38,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:35:38,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245952096] [2021-12-18 06:35:38,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245952096] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:35:38,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:35:38,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 06:35:38,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84135222] [2021-12-18 06:35:38,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:35:38,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 06:35:38,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:35:38,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 06:35:38,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 06:35:38,274 INFO L87 Difference]: Start difference. First operand has 3427 states, 2417 states have (on average 1.419528340918494) internal successors, (3431), 2508 states have internal predecessors, (3431), 891 states have call successors, (891), 118 states have call predecessors, (891), 117 states have return successors, (873), 850 states have call predecessors, (873), 873 states have call successors, (873) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:35:43,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:35:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:35:54,493 INFO L93 Difference]: Finished difference Result 7137 states and 11032 transitions. [2021-12-18 06:35:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 06:35:54,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 218 [2021-12-18 06:35:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:35:54,548 INFO L225 Difference]: With dead ends: 7137 [2021-12-18 06:35:54,548 INFO L226 Difference]: Without dead ends: 3689 [2021-12-18 06:35:54,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:35:54,578 INFO L933 BasicCegarLoop]: 5034 mSDtfsCounter, 1862 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 2293 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 5229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2293 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:35:54,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1931 Valid, 9749 Invalid, 5229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2293 Valid, 2935 Invalid, 1 Unknown, 0 Unchecked, 15.8s Time] [2021-12-18 06:35:54,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2021-12-18 06:35:54,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3401. [2021-12-18 06:35:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 2411 states have (on average 1.4110327664869349) internal successors, (3402), 2482 states have internal predecessors, (3402), 873 states have call successors, (873), 117 states have call predecessors, (873), 116 states have return successors, (861), 838 states have call predecessors, (861), 861 states have call successors, (861) [2021-12-18 06:35:54,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 5136 transitions. [2021-12-18 06:35:54,974 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 5136 transitions. Word has length 218 [2021-12-18 06:35:54,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:35:54,975 INFO L470 AbstractCegarLoop]: Abstraction has 3401 states and 5136 transitions. [2021-12-18 06:35:54,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:35:54,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 5136 transitions. [2021-12-18 06:35:54,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-18 06:35:54,987 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:35:54,987 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:35:54,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 06:35:54,988 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:35:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:35:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1703704930, now seen corresponding path program 1 times [2021-12-18 06:35:54,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:35:54,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766244667] [2021-12-18 06:35:54,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:35:54,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:35:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:35:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:35:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:35:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:35:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:35:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:35:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:35:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:35:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:35:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:35:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:35:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:35:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:35:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:35:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:35:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:35:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:35:55,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:35:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:35:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:35:55,760 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:35:55,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:35:55,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766244667] [2021-12-18 06:35:55,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766244667] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:35:55,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:35:55,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:35:55,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008629837] [2021-12-18 06:35:55,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:35:55,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:35:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:35:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:35:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:35:55,768 INFO L87 Difference]: Start difference. First operand 3401 states and 5136 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-18 06:36:14,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:17,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:36:17,853 INFO L93 Difference]: Finished difference Result 10628 states and 16217 transitions. [2021-12-18 06:36:17,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:36:17,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 218 [2021-12-18 06:36:17,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:36:17,895 INFO L225 Difference]: With dead ends: 10628 [2021-12-18 06:36:17,896 INFO L226 Difference]: Without dead ends: 7264 [2021-12-18 06:36:17,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:36:17,911 INFO L933 BasicCegarLoop]: 5649 mSDtfsCounter, 7225 mSDsluCounter, 9328 mSDsCounter, 0 mSdLazyCounter, 5455 mSolverCounterSat, 4822 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7898 SdHoareTripleChecker+Valid, 14977 SdHoareTripleChecker+Invalid, 10278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4822 IncrementalHoareTripleChecker+Valid, 5455 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2021-12-18 06:36:17,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7898 Valid, 14977 Invalid, 10278 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4822 Valid, 5455 Invalid, 1 Unknown, 0 Unchecked, 21.6s Time] [2021-12-18 06:36:17,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7264 states. [2021-12-18 06:36:18,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7264 to 6681. [2021-12-18 06:36:18,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6681 states, 4752 states have (on average 1.4145622895622896) internal successors, (6722), 4883 states have internal predecessors, (6722), 1696 states have call successors, (1696), 233 states have call predecessors, (1696), 232 states have return successors, (1684), 1638 states have call predecessors, (1684), 1684 states have call successors, (1684) [2021-12-18 06:36:18,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6681 states to 6681 states and 10102 transitions. [2021-12-18 06:36:18,229 INFO L78 Accepts]: Start accepts. Automaton has 6681 states and 10102 transitions. Word has length 218 [2021-12-18 06:36:18,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:36:18,232 INFO L470 AbstractCegarLoop]: Abstraction has 6681 states and 10102 transitions. [2021-12-18 06:36:18,233 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), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-18 06:36:18,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6681 states and 10102 transitions. [2021-12-18 06:36:18,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-18 06:36:18,237 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:36:18,237 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:36:18,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 06:36:18,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:36:18,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:36:18,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2023027615, now seen corresponding path program 1 times [2021-12-18 06:36:18,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:36:18,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498132841] [2021-12-18 06:36:18,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:36:18,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:36:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:36:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:36:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:36:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:36:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:36:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:36:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:36:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:36:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:36:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:36:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:36:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:36:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:36:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:36:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:36:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:36:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:36:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:36:18,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:36:18,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498132841] [2021-12-18 06:36:18,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498132841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:36:18,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:36:18,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:36:18,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410413202] [2021-12-18 06:36:18,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:36:18,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:36:18,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:36:18,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:36:18,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:36:18,998 INFO L87 Difference]: Start difference. First operand 6681 states and 10102 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-18 06:36:21,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:24,010 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:26,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:27,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:28,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:29,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:33,571 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:52,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:36:52,416 INFO L93 Difference]: Finished difference Result 20218 states and 30833 transitions. [2021-12-18 06:36:52,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:36:52,419 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), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 222 [2021-12-18 06:36:52,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:36:52,509 INFO L225 Difference]: With dead ends: 20218 [2021-12-18 06:36:52,509 INFO L226 Difference]: Without dead ends: 13574 [2021-12-18 06:36:52,547 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:36:52,548 INFO L933 BasicCegarLoop]: 5548 mSDtfsCounter, 6774 mSDsluCounter, 11474 mSDsCounter, 0 mSdLazyCounter, 6983 mSolverCounterSat, 4645 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7355 SdHoareTripleChecker+Valid, 17022 SdHoareTripleChecker+Invalid, 11629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4645 IncrementalHoareTripleChecker+Valid, 6983 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:36:52,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7355 Valid, 17022 Invalid, 11629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4645 Valid, 6983 Invalid, 1 Unknown, 0 Unchecked, 32.9s Time] [2021-12-18 06:36:52,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13574 states. [2021-12-18 06:36:53,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13574 to 12402. [2021-12-18 06:36:53,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12402 states, 8793 states have (on average 1.4145342886386898) internal successors, (12438), 9003 states have internal predecessors, (12438), 3156 states have call successors, (3156), 453 states have call predecessors, (3156), 452 states have return successors, (3144), 3081 states have call predecessors, (3144), 3144 states have call successors, (3144) [2021-12-18 06:36:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12402 states to 12402 states and 18738 transitions. [2021-12-18 06:36:53,283 INFO L78 Accepts]: Start accepts. Automaton has 12402 states and 18738 transitions. Word has length 222 [2021-12-18 06:36:53,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:36:53,285 INFO L470 AbstractCegarLoop]: Abstraction has 12402 states and 18738 transitions. [2021-12-18 06:36:53,285 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), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2021-12-18 06:36:53,285 INFO L276 IsEmpty]: Start isEmpty. Operand 12402 states and 18738 transitions. [2021-12-18 06:36:53,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-18 06:36:53,289 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:36:53,289 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:36:53,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 06:36:53,290 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:36:53,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:36:53,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1291140723, now seen corresponding path program 1 times [2021-12-18 06:36:53,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:36:53,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991794840] [2021-12-18 06:36:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:36:53,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:36:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:36:53,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:36:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:36:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:36:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:36:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:36:53,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:36:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:36:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:36:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:36:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:36:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:36:53,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:36:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:36:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:36:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:36:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:36:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:36:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:54,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:36:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:36:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:36:54,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:36:54,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991794840] [2021-12-18 06:36:54,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991794840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:36:54,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:36:54,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:36:54,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658615683] [2021-12-18 06:36:54,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:36:54,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:36:54,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:36:54,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:36:54,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:36:54,038 INFO L87 Difference]: Start difference. First operand 12402 states and 18738 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:36:57,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:36:59,533 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:01,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:03,850 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:10,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:16,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:37:27,184 INFO L93 Difference]: Finished difference Result 26979 states and 41618 transitions. [2021-12-18 06:37:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:37:27,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 222 [2021-12-18 06:37:27,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:37:27,352 INFO L225 Difference]: With dead ends: 26979 [2021-12-18 06:37:27,353 INFO L226 Difference]: Without dead ends: 26973 [2021-12-18 06:37:27,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:37:27,384 INFO L933 BasicCegarLoop]: 5726 mSDtfsCounter, 7275 mSDsluCounter, 11595 mSDsCounter, 0 mSdLazyCounter, 7303 mSolverCounterSat, 4861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7930 SdHoareTripleChecker+Valid, 17321 SdHoareTripleChecker+Invalid, 12164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4861 IncrementalHoareTripleChecker+Valid, 7303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2021-12-18 06:37:27,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7930 Valid, 17321 Invalid, 12164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4861 Valid, 7303 Invalid, 0 Unknown, 0 Unchecked, 32.5s Time] [2021-12-18 06:37:27,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26973 states. [2021-12-18 06:37:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26973 to 24677. [2021-12-18 06:37:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24677 states, 17515 states have (on average 1.414730231230374) internal successors, (24779), 17928 states have internal predecessors, (24779), 6267 states have call successors, (6267), 899 states have call predecessors, (6267), 894 states have return successors, (6411), 6121 states have call predecessors, (6411), 6255 states have call successors, (6411) [2021-12-18 06:37:28,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24677 states to 24677 states and 37457 transitions. [2021-12-18 06:37:28,686 INFO L78 Accepts]: Start accepts. Automaton has 24677 states and 37457 transitions. Word has length 222 [2021-12-18 06:37:28,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:37:28,686 INFO L470 AbstractCegarLoop]: Abstraction has 24677 states and 37457 transitions. [2021-12-18 06:37:28,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:37:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 24677 states and 37457 transitions. [2021-12-18 06:37:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-12-18 06:37:28,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:37:28,689 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:37:28,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 06:37:28,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:37:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:37:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1372026569, now seen corresponding path program 1 times [2021-12-18 06:37:28,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:37:28,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818084537] [2021-12-18 06:37:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:37:28,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:37:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:28,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:37:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:37:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:37:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:37:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:37:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:37:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:37:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:37:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:37:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:37:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:37:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:37:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:37:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:37:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:37:29,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:37:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:37:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:29,371 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:37:29,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:37:29,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818084537] [2021-12-18 06:37:29,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818084537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:37:29,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:37:29,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:37:29,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959004371] [2021-12-18 06:37:29,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:37:29,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:37:29,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:37:29,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:37:29,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:37:29,375 INFO L87 Difference]: Start difference. First operand 24677 states and 37457 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:37:31,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:32,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:35,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 06:37:43,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:37:43,932 INFO L93 Difference]: Finished difference Result 27307 states and 41942 transitions. [2021-12-18 06:37:43,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:37:43,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 223 [2021-12-18 06:37:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:37:44,060 INFO L225 Difference]: With dead ends: 27307 [2021-12-18 06:37:44,060 INFO L226 Difference]: Without dead ends: 27304 [2021-12-18 06:37:44,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:37:44,079 INFO L933 BasicCegarLoop]: 4969 mSDtfsCounter, 6781 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 3915 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7384 SdHoareTripleChecker+Valid, 7554 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3915 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-18 06:37:44,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7384 Valid, 7554 Invalid, 5674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3915 Valid, 1758 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2021-12-18 06:37:44,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27304 states. [2021-12-18 06:37:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27304 to 24940. [2021-12-18 06:37:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24940 states, 17707 states have (on average 1.4124357598689783) internal successors, (25010), 18119 states have internal predecessors, (25010), 6290 states have call successors, (6290), 947 states have call predecessors, (6290), 942 states have return successors, (6435), 6145 states have call predecessors, (6435), 6279 states have call successors, (6435) [2021-12-18 06:37:45,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24940 states to 24940 states and 37735 transitions. [2021-12-18 06:37:45,519 INFO L78 Accepts]: Start accepts. Automaton has 24940 states and 37735 transitions. Word has length 223 [2021-12-18 06:37:45,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:37:45,520 INFO L470 AbstractCegarLoop]: Abstraction has 24940 states and 37735 transitions. [2021-12-18 06:37:45,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:37:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 24940 states and 37735 transitions. [2021-12-18 06:37:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-12-18 06:37:45,524 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:37:45,524 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:37:45,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 06:37:45,524 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:37:45,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:37:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash 415484368, now seen corresponding path program 1 times [2021-12-18 06:37:45,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:37:45,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234898548] [2021-12-18 06:37:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:37:45,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:37:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:37:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:37:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:37:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:37:46,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:37:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:37:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:37:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:37:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:46,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:37:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:37:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:37:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:37:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:37:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:37:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:37:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:37:46,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:37:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:37:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:37:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:37:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:37:46,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:37:46,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234898548] [2021-12-18 06:37:46,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234898548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:37:46,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:37:46,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:37:46,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032401594] [2021-12-18 06:37:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:37:46,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:37:46,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:37:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:37:46,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:37:46,307 INFO L87 Difference]: Start difference. First operand 24940 states and 37735 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:37:50,189 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:37:51,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:00,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:06,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 06:38:08,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:38:08,815 INFO L93 Difference]: Finished difference Result 27306 states and 41940 transitions. [2021-12-18 06:38:08,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:38:08,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 224 [2021-12-18 06:38:08,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:38:08,952 INFO L225 Difference]: With dead ends: 27306 [2021-12-18 06:38:08,953 INFO L226 Difference]: Without dead ends: 27303 [2021-12-18 06:38:08,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:38:08,980 INFO L933 BasicCegarLoop]: 4981 mSDtfsCounter, 6124 mSDsluCounter, 4678 mSDsCounter, 0 mSdLazyCounter, 2932 mSolverCounterSat, 2838 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6728 SdHoareTripleChecker+Valid, 9659 SdHoareTripleChecker+Invalid, 5772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2838 IncrementalHoareTripleChecker+Valid, 2932 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:38:08,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6728 Valid, 9659 Invalid, 5772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2838 Valid, 2932 Invalid, 2 Unknown, 0 Unchecked, 21.9s Time] [2021-12-18 06:38:09,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27303 states. [2021-12-18 06:38:10,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27303 to 24939. [2021-12-18 06:38:10,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24939 states, 17707 states have (on average 1.4123792850285197) internal successors, (25009), 18118 states have internal predecessors, (25009), 6289 states have call successors, (6289), 947 states have call predecessors, (6289), 942 states have return successors, (6435), 6145 states have call predecessors, (6435), 6279 states have call successors, (6435) [2021-12-18 06:38:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24939 states to 24939 states and 37733 transitions. [2021-12-18 06:38:10,268 INFO L78 Accepts]: Start accepts. Automaton has 24939 states and 37733 transitions. Word has length 224 [2021-12-18 06:38:10,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:38:10,269 INFO L470 AbstractCegarLoop]: Abstraction has 24939 states and 37733 transitions. [2021-12-18 06:38:10,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:38:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 24939 states and 37733 transitions. [2021-12-18 06:38:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-18 06:38:10,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:38:10,273 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:38:10,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 06:38:10,273 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:38:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:38:10,274 INFO L85 PathProgramCache]: Analyzing trace with hash -6246566, now seen corresponding path program 1 times [2021-12-18 06:38:10,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:38:10,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934994332] [2021-12-18 06:38:10,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:38:10,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:38:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:38:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:38:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:38:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:38:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:10,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:38:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:38:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:38:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:38:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:38:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:38:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:38:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:38:11,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:38:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:38:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:38:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:38:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:38:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:38:11,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:38:11,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934994332] [2021-12-18 06:38:11,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934994332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:38:11,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:38:11,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:38:11,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747368453] [2021-12-18 06:38:11,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:38:11,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:38:11,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:38:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:38:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:38:11,369 INFO L87 Difference]: Start difference. First operand 24939 states and 37733 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:38:14,473 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:16,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:30,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:38:30,902 INFO L93 Difference]: Finished difference Result 27305 states and 41938 transitions. [2021-12-18 06:38:30,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:38:30,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2021-12-18 06:38:30,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:38:31,043 INFO L225 Difference]: With dead ends: 27305 [2021-12-18 06:38:31,043 INFO L226 Difference]: Without dead ends: 27302 [2021-12-18 06:38:31,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:38:31,071 INFO L933 BasicCegarLoop]: 4962 mSDtfsCounter, 6148 mSDsluCounter, 4648 mSDsCounter, 0 mSdLazyCounter, 2940 mSolverCounterSat, 2813 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6748 SdHoareTripleChecker+Valid, 9610 SdHoareTripleChecker+Invalid, 5754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2813 IncrementalHoareTripleChecker+Valid, 2940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2021-12-18 06:38:31,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6748 Valid, 9610 Invalid, 5754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2813 Valid, 2940 Invalid, 1 Unknown, 0 Unchecked, 18.8s Time] [2021-12-18 06:38:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27302 states. [2021-12-18 06:38:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27302 to 24938. [2021-12-18 06:38:32,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24938 states, 17707 states have (on average 1.4123228101880612) internal successors, (25008), 18117 states have internal predecessors, (25008), 6288 states have call successors, (6288), 947 states have call predecessors, (6288), 942 states have return successors, (6435), 6145 states have call predecessors, (6435), 6279 states have call successors, (6435) [2021-12-18 06:38:32,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24938 states to 24938 states and 37731 transitions. [2021-12-18 06:38:32,218 INFO L78 Accepts]: Start accepts. Automaton has 24938 states and 37731 transitions. Word has length 225 [2021-12-18 06:38:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:38:32,219 INFO L470 AbstractCegarLoop]: Abstraction has 24938 states and 37731 transitions. [2021-12-18 06:38:32,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:38:32,219 INFO L276 IsEmpty]: Start isEmpty. Operand 24938 states and 37731 transitions. [2021-12-18 06:38:32,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-18 06:38:32,223 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:38:32,223 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:38:32,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 06:38:32,223 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:38:32,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:38:32,224 INFO L85 PathProgramCache]: Analyzing trace with hash -194998765, now seen corresponding path program 1 times [2021-12-18 06:38:32,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:38:32,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85162523] [2021-12-18 06:38:32,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:38:32,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:38:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:38:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:38:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:38:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:38:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:38:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:38:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:38:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:38:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:38:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:32,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:38:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:38:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:38:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:38:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:38:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:38:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:38:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:38:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:33,186 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:38:33,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:38:33,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85162523] [2021-12-18 06:38:33,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85162523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:38:33,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:38:33,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:38:33,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008696427] [2021-12-18 06:38:33,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:38:33,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:38:33,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:38:33,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:38:33,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:38:33,200 INFO L87 Difference]: Start difference. First operand 24938 states and 37731 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:38:36,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:38,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:42,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-18 06:38:47,712 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:38:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:38:51,845 INFO L93 Difference]: Finished difference Result 27304 states and 41936 transitions. [2021-12-18 06:38:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:38:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 226 [2021-12-18 06:38:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:38:51,954 INFO L225 Difference]: With dead ends: 27304 [2021-12-18 06:38:51,955 INFO L226 Difference]: Without dead ends: 27301 [2021-12-18 06:38:51,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:38:51,975 INFO L933 BasicCegarLoop]: 4967 mSDtfsCounter, 6747 mSDsluCounter, 2542 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 3876 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7344 SdHoareTripleChecker+Valid, 7509 SdHoareTripleChecker+Invalid, 5615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3876 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2021-12-18 06:38:51,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7344 Valid, 7509 Invalid, 5615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3876 Valid, 1736 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2021-12-18 06:38:52,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27301 states. [2021-12-18 06:38:52,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27301 to 24937. [2021-12-18 06:38:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24937 states, 17707 states have (on average 1.4122663353476026) internal successors, (25007), 18116 states have internal predecessors, (25007), 6287 states have call successors, (6287), 947 states have call predecessors, (6287), 942 states have return successors, (6435), 6145 states have call predecessors, (6435), 6279 states have call successors, (6435) [2021-12-18 06:38:53,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24937 states to 24937 states and 37729 transitions. [2021-12-18 06:38:53,048 INFO L78 Accepts]: Start accepts. Automaton has 24937 states and 37729 transitions. Word has length 226 [2021-12-18 06:38:53,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:38:53,049 INFO L470 AbstractCegarLoop]: Abstraction has 24937 states and 37729 transitions. [2021-12-18 06:38:53,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:38:53,049 INFO L276 IsEmpty]: Start isEmpty. Operand 24937 states and 37729 transitions. [2021-12-18 06:38:53,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-18 06:38:53,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:38:53,053 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:38:53,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 06:38:53,053 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:38:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:38:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1751344771, now seen corresponding path program 1 times [2021-12-18 06:38:53,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:38:53,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301274094] [2021-12-18 06:38:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:38:53,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:38:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:38:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:38:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:38:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:38:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:38:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:38:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:38:53,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:38:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:38:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:38:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:38:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:38:53,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:38:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:38:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:38:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:38:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:38:53,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:38:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:38:53,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:38:53,729 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:38:53,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:38:53,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301274094] [2021-12-18 06:38:53,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301274094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:38:53,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:38:53,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:38:53,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892630375] [2021-12-18 06:38:53,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:38:53,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:38:53,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:38:53,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:38:53,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:38:53,733 INFO L87 Difference]: Start difference. First operand 24937 states and 37729 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:38:58,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:01,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:13,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:39:13,003 INFO L93 Difference]: Finished difference Result 78899 states and 120919 transitions. [2021-12-18 06:39:13,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 06:39:13,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 227 [2021-12-18 06:39:13,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:39:13,228 INFO L225 Difference]: With dead ends: 78899 [2021-12-18 06:39:13,228 INFO L226 Difference]: Without dead ends: 53999 [2021-12-18 06:39:13,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-18 06:39:13,349 INFO L933 BasicCegarLoop]: 6154 mSDtfsCounter, 9003 mSDsluCounter, 7312 mSDsCounter, 0 mSdLazyCounter, 3714 mSolverCounterSat, 6768 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9637 SdHoareTripleChecker+Valid, 13466 SdHoareTripleChecker+Invalid, 10484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6768 IncrementalHoareTripleChecker+Valid, 3714 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2021-12-18 06:39:13,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9637 Valid, 13466 Invalid, 10484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6768 Valid, 3714 Invalid, 2 Unknown, 0 Unchecked, 17.5s Time] [2021-12-18 06:39:13,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53999 states. [2021-12-18 06:39:15,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53999 to 49240. [2021-12-18 06:39:15,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49240 states, 35047 states have (on average 1.413016806003367) internal successors, (49522), 35785 states have internal predecessors, (49522), 12366 states have call successors, (12366), 1852 states have call predecessors, (12366), 1826 states have return successors, (12849), 12118 states have call predecessors, (12849), 12357 states have call successors, (12849) [2021-12-18 06:39:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49240 states to 49240 states and 74737 transitions. [2021-12-18 06:39:15,529 INFO L78 Accepts]: Start accepts. Automaton has 49240 states and 74737 transitions. Word has length 227 [2021-12-18 06:39:15,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:39:15,530 INFO L470 AbstractCegarLoop]: Abstraction has 49240 states and 74737 transitions. [2021-12-18 06:39:15,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:39:15,531 INFO L276 IsEmpty]: Start isEmpty. Operand 49240 states and 74737 transitions. [2021-12-18 06:39:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-12-18 06:39:15,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:39:15,533 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:39:15,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 06:39:15,534 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:39:15,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:39:15,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1541541462, now seen corresponding path program 1 times [2021-12-18 06:39:15,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:39:15,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907509964] [2021-12-18 06:39:15,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:39:15,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:39:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:39:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:39:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:39:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:39:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:39:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:39:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:15,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:39:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:39:16,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:39:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:39:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:39:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:39:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:39:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:39:16,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:39:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:39:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:39:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2021-12-18 06:39:16,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:39:16,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907509964] [2021-12-18 06:39:16,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907509964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:39:16,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:39:16,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 06:39:16,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528691263] [2021-12-18 06:39:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:39:16,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 06:39:16,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:39:16,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 06:39:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-18 06:39:16,233 INFO L87 Difference]: Start difference. First operand 49240 states and 74737 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:39:19,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:21,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:29,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:32,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:39:32,116 INFO L93 Difference]: Finished difference Result 53970 states and 83198 transitions. [2021-12-18 06:39:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 06:39:32,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 228 [2021-12-18 06:39:32,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:39:32,402 INFO L225 Difference]: With dead ends: 53970 [2021-12-18 06:39:32,402 INFO L226 Difference]: Without dead ends: 53957 [2021-12-18 06:39:32,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:39:32,459 INFO L933 BasicCegarLoop]: 4972 mSDtfsCounter, 6741 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 3854 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7342 SdHoareTripleChecker+Valid, 7513 SdHoareTripleChecker+Invalid, 5585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3854 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-12-18 06:39:32,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7342 Valid, 7513 Invalid, 5585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3854 Valid, 1730 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2021-12-18 06:39:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53957 states. [2021-12-18 06:39:34,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53957 to 49229. [2021-12-18 06:39:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49229 states, 35037 states have (on average 1.4129348973941833) internal successors, (49505), 35774 states have internal predecessors, (49505), 12365 states have call successors, (12365), 1852 states have call predecessors, (12365), 1826 states have return successors, (12849), 12118 states have call predecessors, (12849), 12357 states have call successors, (12849) [2021-12-18 06:39:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49229 states to 49229 states and 74719 transitions. [2021-12-18 06:39:34,956 INFO L78 Accepts]: Start accepts. Automaton has 49229 states and 74719 transitions. Word has length 228 [2021-12-18 06:39:34,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:39:34,957 INFO L470 AbstractCegarLoop]: Abstraction has 49229 states and 74719 transitions. [2021-12-18 06:39:34,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 06:39:34,957 INFO L276 IsEmpty]: Start isEmpty. Operand 49229 states and 74719 transitions. [2021-12-18 06:39:34,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-18 06:39:34,961 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:39:34,961 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 06:39:34,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 06:39:34,962 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:39:34,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:39:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash 497614824, now seen corresponding path program 1 times [2021-12-18 06:39:34,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:39:34,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958500652] [2021-12-18 06:39:34,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:39:34,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:39:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:39:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:39:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:39:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:39:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:39:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:39:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:39:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:39:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:39:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:39:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:39:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:39:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:39:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:39:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:39:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:39:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:39:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-18 06:39:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:39:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 06:39:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:39:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:39:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:39:35,931 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2021-12-18 06:39:35,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:39:35,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958500652] [2021-12-18 06:39:35,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958500652] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:39:35,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:39:35,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 06:39:35,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040214947] [2021-12-18 06:39:35,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:39:35,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 06:39:35,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:39:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 06:39:35,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 06:39:35,934 INFO L87 Difference]: Start difference. First operand 49229 states and 74719 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 06:39:39,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:41,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:43,238 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:39:59,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:40:01,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:40:16,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:40:16,364 INFO L93 Difference]: Finished difference Result 157041 states and 241074 transitions. [2021-12-18 06:40:16,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 06:40:16,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 262 [2021-12-18 06:40:16,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:40:16,931 INFO L225 Difference]: With dead ends: 157041 [2021-12-18 06:40:16,931 INFO L226 Difference]: Without dead ends: 107849 [2021-12-18 06:40:17,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-12-18 06:40:17,268 INFO L933 BasicCegarLoop]: 5378 mSDtfsCounter, 12591 mSDsluCounter, 6461 mSDsCounter, 0 mSdLazyCounter, 7917 mSolverCounterSat, 10320 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13322 SdHoareTripleChecker+Valid, 11839 SdHoareTripleChecker+Invalid, 18241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10320 IncrementalHoareTripleChecker+Valid, 7917 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.0s IncrementalHoareTripleChecker+Time [2021-12-18 06:40:17,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13322 Valid, 11839 Invalid, 18241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10320 Valid, 7917 Invalid, 4 Unknown, 0 Unchecked, 36.0s Time] [2021-12-18 06:40:17,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107849 states. [2021-12-18 06:40:21,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107849 to 98259. [2021-12-18 06:40:21,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98259 states, 69893 states have (on average 1.4126307355529166) internal successors, (98733), 71366 states have internal predecessors, (98733), 24617 states have call successors, (24617), 3682 states have call predecessors, (24617), 3748 states have return successors, (25893), 24210 states have call predecessors, (25893), 24609 states have call successors, (25893) [2021-12-18 06:40:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98259 states to 98259 states and 149243 transitions. [2021-12-18 06:40:22,454 INFO L78 Accepts]: Start accepts. Automaton has 98259 states and 149243 transitions. Word has length 262 [2021-12-18 06:40:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:40:22,454 INFO L470 AbstractCegarLoop]: Abstraction has 98259 states and 149243 transitions. [2021-12-18 06:40:22,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 06:40:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 98259 states and 149243 transitions. [2021-12-18 06:40:22,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-12-18 06:40:22,461 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:40:22,461 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 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] [2021-12-18 06:40:22,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 06:40:22,462 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:40:22,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:40:22,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1120223930, now seen corresponding path program 1 times [2021-12-18 06:40:22,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:40:22,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042550627] [2021-12-18 06:40:22,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:40:22,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:40:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:40:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:40:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:40:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:40:22,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:40:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:40:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:40:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:40:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:40:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:40:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:40:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:40:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:40:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:40:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:40:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:40:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:40:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 06:40:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-12-18 06:40:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-12-18 06:40:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:40:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-18 06:40:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 06:40:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-18 06:40:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-12-18 06:40:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:40:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:40:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:40:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1068 trivial. 0 not checked. [2021-12-18 06:40:23,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:40:23,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042550627] [2021-12-18 06:40:23,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042550627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:40:23,394 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:40:23,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:40:23,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357038774] [2021-12-18 06:40:23,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:40:23,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:40:23,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:40:23,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:40:23,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:40:23,396 INFO L87 Difference]: Start difference. First operand 98259 states and 149243 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 06:40:28,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:40:30,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:40:32,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:40:42,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:40:51,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:41:05,905 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:41:17,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:41:28,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 06:41:28,239 INFO L93 Difference]: Finished difference Result 312607 states and 479910 transitions. [2021-12-18 06:41:28,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 06:41:28,239 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 320 [2021-12-18 06:41:28,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 06:41:29,788 INFO L225 Difference]: With dead ends: 312607 [2021-12-18 06:41:29,789 INFO L226 Difference]: Without dead ends: 214385 [2021-12-18 06:41:30,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2021-12-18 06:41:30,237 INFO L933 BasicCegarLoop]: 5474 mSDtfsCounter, 11445 mSDsluCounter, 10550 mSDsCounter, 0 mSdLazyCounter, 13291 mSolverCounterSat, 8320 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12170 SdHoareTripleChecker+Valid, 16024 SdHoareTripleChecker+Invalid, 21616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8320 IncrementalHoareTripleChecker+Valid, 13291 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.7s IncrementalHoareTripleChecker+Time [2021-12-18 06:41:30,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12170 Valid, 16024 Invalid, 21616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8320 Valid, 13291 Invalid, 5 Unknown, 0 Unchecked, 56.7s Time] [2021-12-18 06:41:30,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214385 states. [2021-12-18 06:41:39,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214385 to 195263. [2021-12-18 06:41:39,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195263 states, 139013 states have (on average 1.41342895988145) internal successors, (196485), 141946 states have internal predecessors, (196485), 48801 states have call successors, (48801), 7322 states have call predecessors, (48801), 7448 states have return successors, (51233), 47994 states have call predecessors, (51233), 48793 states have call successors, (51233) [2021-12-18 06:41:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195263 states to 195263 states and 296519 transitions. [2021-12-18 06:41:41,522 INFO L78 Accepts]: Start accepts. Automaton has 195263 states and 296519 transitions. Word has length 320 [2021-12-18 06:41:41,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 06:41:41,523 INFO L470 AbstractCegarLoop]: Abstraction has 195263 states and 296519 transitions. [2021-12-18 06:41:41,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (34), 7 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 06:41:41,523 INFO L276 IsEmpty]: Start isEmpty. Operand 195263 states and 296519 transitions. [2021-12-18 06:41:41,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-12-18 06:41:41,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 06:41:41,535 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 9, 9, 9, 3, 3, 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] [2021-12-18 06:41:41,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 06:41:41,536 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 06:41:41,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 06:41:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash 827503388, now seen corresponding path program 1 times [2021-12-18 06:41:41,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 06:41:41,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310620718] [2021-12-18 06:41:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 06:41:41,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 06:41:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 06:41:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:41:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 06:41:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 06:41:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 06:41:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 06:41:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-18 06:41:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-18 06:41:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 06:41:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 06:41:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 06:41:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-18 06:41:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 06:41:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 06:41:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 06:41:42,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 06:41:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 06:41:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 06:41:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-18 06:41:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 06:41:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 06:41:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 06:41:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 06:41:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-18 06:41:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-18 06:41:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 06:41:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-18 06:41:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 06:41:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-18 06:41:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-18 06:41:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 06:41:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 06:41:42,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1287 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1281 trivial. 0 not checked. [2021-12-18 06:41:42,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 06:41:42,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310620718] [2021-12-18 06:41:42,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310620718] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 06:41:42,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 06:41:42,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 06:41:42,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397489362] [2021-12-18 06:41:42,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 06:41:42,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 06:41:42,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 06:41:42,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 06:41:42,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-12-18 06:41:42,394 INFO L87 Difference]: Start difference. First operand 195263 states and 296519 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 06:41:45,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:41:47,875 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:41:49,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:41:51,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:42:06,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 06:42:17,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []