./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.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-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.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 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:41:42,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:41:42,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:41:42,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:41:42,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:41:42,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:41:42,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:41:42,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:41:42,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:41:42,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:41:42,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:41:42,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:41:42,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:41:42,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:41:42,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:41:42,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:41:42,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:41:42,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:41:42,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:41:42,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:41:42,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:41:42,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:41:42,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:41:42,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:41:42,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:41:42,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:41:42,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:41:42,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:41:42,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:41:42,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:41:42,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:41:42,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:41:42,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:41:42,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:41:42,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:41:42,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:41:42,412 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:41:42,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:41:42,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:41:42,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:41:42,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:41:42,415 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:41:42,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:41:42,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:41:42,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:41:42,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:41:42,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:41:42,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:41:42,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:41:42,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:41:42,449 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:41:42,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:41:42,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:41:42,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:41:42,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:41:42,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:41:42,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:41:42,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:41:42,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:41:42,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:41:42,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:41:42,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:41:42,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:41:42,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:41:42,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:41:42,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:41:42,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:41:42,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:41:42,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:41:42,453 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:41:42,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:41:42,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:41:42,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:41:42,454 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 [2021-12-16 03:41:42,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:41:42,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:41:42,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:41:42,685 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:41:42,685 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:41:42,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2021-12-16 03:41:42,735 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3fdd84d/284077b7522147828c46f8cc891e85f9/FLAG3d69d5fd7 [2021-12-16 03:41:43,242 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:41:43,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2021-12-16 03:41:43,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3fdd84d/284077b7522147828c46f8cc891e85f9/FLAG3d69d5fd7 [2021-12-16 03:41:43,479 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3fdd84d/284077b7522147828c46f8cc891e85f9 [2021-12-16 03:41:43,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:41:43,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:41:43,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:41:43,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:41:43,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:41:43,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:41:43" (1/1) ... [2021-12-16 03:41:43,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b528c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:43, skipping insertion in model container [2021-12-16 03:41:43,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:41:43" (1/1) ... [2021-12-16 03:41:43,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:41:43,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:41:44,436 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-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2021-12-16 03:41:44,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:44,471 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:41:44,648 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-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2021-12-16 03:41:44,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:44,715 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:41:44,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44 WrapperNode [2021-12-16 03:41:44,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:41:44,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:41:44,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:41:44,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:41:44,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,876 INFO L137 Inliner]: procedures = 146, calls = 1210, calls flagged for inlining = 64, calls inlined = 64, statements flattened = 2797 [2021-12-16 03:41:44,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:41:44,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:41:44,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:41:44,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:41:44,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:44,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:45,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:41:45,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:41:45,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:41:45,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:41:45,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (1/1) ... [2021-12-16 03:41:45,024 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:41:45,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:41:45,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:41:45,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:41:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2021-12-16 03:41:45,081 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2021-12-16 03:41:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2021-12-16 03:41:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2021-12-16 03:41:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2021-12-16 03:41:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2021-12-16 03:41:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-16 03:41:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-16 03:41:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-16 03:41:45,083 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-16 03:41:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:41:45,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:41:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2021-12-16 03:41:45,083 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2021-12-16 03:41:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2021-12-16 03:41:45,083 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2021-12-16 03:41:45,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2021-12-16 03:41:45,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2021-12-16 03:41:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:41:45,084 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:41:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-16 03:41:45,084 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-16 03:41:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2021-12-16 03:41:45,084 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2021-12-16 03:41:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:41:45,084 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-16 03:41:45,085 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-16 03:41:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-16 03:41:45,085 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-16 03:41:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2021-12-16 03:41:45,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2021-12-16 03:41:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-16 03:41:45,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-16 03:41:45,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:41:45,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:41:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2021-12-16 03:41:45,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2021-12-16 03:41:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-12-16 03:41:45,086 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-12-16 03:41:45,086 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2021-12-16 03:41:45,086 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2021-12-16 03:41:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:41:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2021-12-16 03:41:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2021-12-16 03:41:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2021-12-16 03:41:45,087 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2021-12-16 03:41:45,087 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2021-12-16 03:41:45,088 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2021-12-16 03:41:45,088 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2021-12-16 03:41:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2021-12-16 03:41:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:41:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:41:45,089 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2021-12-16 03:41:45,089 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2021-12-16 03:41:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:41:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2021-12-16 03:41:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2021-12-16 03:41:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2021-12-16 03:41:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2021-12-16 03:41:45,090 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2021-12-16 03:41:45,090 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2021-12-16 03:41:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-12-16 03:41:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-12-16 03:41:45,091 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2021-12-16 03:41:45,091 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2021-12-16 03:41:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:41:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-16 03:41:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-16 03:41:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:41:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:41:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2021-12-16 03:41:45,092 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2021-12-16 03:41:45,092 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 03:41:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 03:41:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2021-12-16 03:41:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2021-12-16 03:41:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2021-12-16 03:41:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2021-12-16 03:41:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:41:45,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:41:45,093 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-16 03:41:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-16 03:41:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:41:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-16 03:41:45,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-16 03:41:45,094 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2021-12-16 03:41:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2021-12-16 03:41:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2021-12-16 03:41:45,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2021-12-16 03:41:45,095 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2021-12-16 03:41:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2021-12-16 03:41:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2021-12-16 03:41:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2021-12-16 03:41:45,096 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2021-12-16 03:41:45,096 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2021-12-16 03:41:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2021-12-16 03:41:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2021-12-16 03:41:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-16 03:41:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-16 03:41:45,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:41:45,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:41:45,508 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:41:45,511 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:41:48,030 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:41:48,046 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:41:48,046 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:41:48,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:41:48 BoogieIcfgContainer [2021-12-16 03:41:48,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:41:48,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:41:48,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:41:48,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:41:48,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:41:43" (1/3) ... [2021-12-16 03:41:48,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a5a289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:41:48, skipping insertion in model container [2021-12-16 03:41:48,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:44" (2/3) ... [2021-12-16 03:41:48,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a5a289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:41:48, skipping insertion in model container [2021-12-16 03:41:48,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:41:48" (3/3) ... [2021-12-16 03:41:48,058 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2021-12-16 03:41:48,062 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:41:48,062 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:41:48,103 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:41:48,113 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:41:48,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:41:48,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 968 states, 708 states have (on average 1.3785310734463276) internal successors, (976), 716 states have internal predecessors, (976), 212 states have call successors, (212), 46 states have call predecessors, (212), 46 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) [2021-12-16 03:41:48,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-16 03:41:48,165 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:41:48,165 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-12-16 03:41:48,166 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:41:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:41:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1364499313, now seen corresponding path program 1 times [2021-12-16 03:41:48,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:41:48,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016197364] [2021-12-16 03:41:48,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:48,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:41:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:41:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:41:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 03:41:48,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-16 03:41:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:41:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 03:41:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-16 03:41:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-12-16 03:41:48,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-16 03:41:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:41:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:48,793 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-16 03:41:48,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:41:48,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016197364] [2021-12-16 03:41:48,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016197364] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:41:48,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750219124] [2021-12-16 03:41:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:48,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:41:48,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:41:48,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:41:48,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 03:41:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:49,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1322 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-16 03:41:49,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:41:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-16 03:41:49,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:41:49,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750219124] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:41:49,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:41:49,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2021-12-16 03:41:49,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776798138] [2021-12-16 03:41:49,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:41:49,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:41:49,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:41:49,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:41:49,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:41:49,452 INFO L87 Difference]: Start difference. First operand has 968 states, 708 states have (on average 1.3785310734463276) internal successors, (976), 716 states have internal predecessors, (976), 212 states have call successors, (212), 46 states have call predecessors, (212), 46 states have return successors, (212), 212 states have call predecessors, (212), 212 states have call successors, (212) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:41:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:41:49,571 INFO L93 Difference]: Finished difference Result 1939 states and 2828 transitions. [2021-12-16 03:41:49,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:41:49,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2021-12-16 03:41:49,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:41:49,587 INFO L225 Difference]: With dead ends: 1939 [2021-12-16 03:41:49,587 INFO L226 Difference]: Without dead ends: 959 [2021-12-16 03:41:49,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:41:49,602 INFO L933 BasicCegarLoop]: 1395 mSDtfsCounter, 3 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 5575 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:41:49,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 5575 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:41:49,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-12-16 03:41:49,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2021-12-16 03:41:49,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 700 states have (on average 1.37) internal successors, (959), 708 states have internal predecessors, (959), 211 states have call successors, (211), 46 states have call predecessors, (211), 47 states have return successors, (218), 211 states have call predecessors, (218), 211 states have call successors, (218) [2021-12-16 03:41:49,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1388 transitions. [2021-12-16 03:41:49,681 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1388 transitions. Word has length 87 [2021-12-16 03:41:49,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:41:49,682 INFO L470 AbstractCegarLoop]: Abstraction has 959 states and 1388 transitions. [2021-12-16 03:41:49,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:41:49,682 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1388 transitions. [2021-12-16 03:41:49,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-16 03:41:49,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:41:49,689 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 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] [2021-12-16 03:41:49,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:41:49,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-16 03:41:49,902 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:41:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:41:49,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1592292097, now seen corresponding path program 1 times [2021-12-16 03:41:49,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:41:49,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350027548] [2021-12-16 03:41:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:49,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:41:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:41:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:41:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 03:41:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 03:41:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 03:41:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-16 03:41:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-16 03:41:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 03:41:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-16 03:41:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:41:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-12-16 03:41:50,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:41:50,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350027548] [2021-12-16 03:41:50,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350027548] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 03:41:50,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499935640] [2021-12-16 03:41:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:50,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 03:41:50,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:41:50,203 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 03:41:50,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 03:41:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:50,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1352 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-16 03:41:50,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:41:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-16 03:41:50,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:41:50,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499935640] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:41:50,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 03:41:50,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 6 [2021-12-16 03:41:50,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162720285] [2021-12-16 03:41:50,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:41:50,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:41:50,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:41:50,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:41:50,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:41:50,740 INFO L87 Difference]: Start difference. First operand 959 states and 1388 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:41:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:41:50,795 INFO L93 Difference]: Finished difference Result 1910 states and 2763 transitions. [2021-12-16 03:41:50,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:41:50,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2021-12-16 03:41:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:41:50,801 INFO L225 Difference]: With dead ends: 1910 [2021-12-16 03:41:50,801 INFO L226 Difference]: Without dead ends: 959 [2021-12-16 03:41:50,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:41:50,806 INFO L933 BasicCegarLoop]: 1379 mSDtfsCounter, 0 mSDsluCounter, 4129 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5508 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:41:50,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5508 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:41:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-12-16 03:41:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 959. [2021-12-16 03:41:50,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 700 states have (on average 1.37) internal successors, (959), 708 states have internal predecessors, (959), 211 states have call successors, (211), 46 states have call predecessors, (211), 47 states have return successors, (217), 211 states have call predecessors, (217), 211 states have call successors, (217) [2021-12-16 03:41:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1387 transitions. [2021-12-16 03:41:50,840 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1387 transitions. Word has length 90 [2021-12-16 03:41:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:41:50,840 INFO L470 AbstractCegarLoop]: Abstraction has 959 states and 1387 transitions. [2021-12-16 03:41:50,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 03:41:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1387 transitions. [2021-12-16 03:41:50,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-16 03:41:50,844 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:41:50,844 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2021-12-16 03:41:50,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-16 03:41:51,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-16 03:41:51,060 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:41:51,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:41:51,060 INFO L85 PathProgramCache]: Analyzing trace with hash -893601957, now seen corresponding path program 2 times [2021-12-16 03:41:51,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:41:51,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282002648] [2021-12-16 03:41:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:51,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:41:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:41:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:41:51,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 03:41:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:41:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 03:41:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 03:41:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:41:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 03:41:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 03:41:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:41:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-16 03:41:51,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:41:51,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282002648] [2021-12-16 03:41:51,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282002648] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:41:51,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:41:51,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 03:41:51,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119957955] [2021-12-16 03:41:51,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:41:51,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 03:41:51,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:41:51,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 03:41:51,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 03:41:51,340 INFO L87 Difference]: Start difference. First operand 959 states and 1387 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:41:56,379 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:41:58,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:02,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:05,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:42:05,384 INFO L93 Difference]: Finished difference Result 2175 states and 3181 transitions. [2021-12-16 03:42:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-16 03:42:05,385 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 93 [2021-12-16 03:42:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:42:05,391 INFO L225 Difference]: With dead ends: 2175 [2021-12-16 03:42:05,391 INFO L226 Difference]: Without dead ends: 1239 [2021-12-16 03:42:05,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-12-16 03:42:05,399 INFO L933 BasicCegarLoop]: 1628 mSDtfsCounter, 508 mSDsluCounter, 6793 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 237 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 8421 SdHoareTripleChecker+Invalid, 3297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2021-12-16 03:42:05,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 8421 Invalid, 3297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 3057 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2021-12-16 03:42:05,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2021-12-16 03:42:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 965. [2021-12-16 03:42:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 705 states have (on average 1.3687943262411348) internal successors, (965), 713 states have internal predecessors, (965), 211 states have call successors, (211), 46 states have call predecessors, (211), 48 states have return successors, (220), 212 states have call predecessors, (220), 211 states have call successors, (220) [2021-12-16 03:42:05,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1396 transitions. [2021-12-16 03:42:05,437 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1396 transitions. Word has length 93 [2021-12-16 03:42:05,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:42:05,438 INFO L470 AbstractCegarLoop]: Abstraction has 965 states and 1396 transitions. [2021-12-16 03:42:05,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:42:05,439 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1396 transitions. [2021-12-16 03:42:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-16 03:42:05,443 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:42:05,443 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2021-12-16 03:42:05,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:42:05,443 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:42:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:42:05,444 INFO L85 PathProgramCache]: Analyzing trace with hash 995231280, now seen corresponding path program 1 times [2021-12-16 03:42:05,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:42:05,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927859967] [2021-12-16 03:42:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:42:05,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:42:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:42:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:42:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 03:42:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:42:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 03:42:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 03:42:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:42:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 03:42:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 03:42:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:42:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,704 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-16 03:42:05,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:42:05,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927859967] [2021-12-16 03:42:05,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927859967] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:42:05,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:42:05,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 03:42:05,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298962233] [2021-12-16 03:42:05,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:42:05,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 03:42:05,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:42:05,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 03:42:05,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 03:42:05,707 INFO L87 Difference]: Start difference. First operand 965 states and 1396 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:42:11,979 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:14,056 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:16,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:24,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:26,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:26,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:42:26,349 INFO L93 Difference]: Finished difference Result 2779 states and 4131 transitions. [2021-12-16 03:42:26,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 03:42:26,350 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2021-12-16 03:42:26,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:42:26,361 INFO L225 Difference]: With dead ends: 2779 [2021-12-16 03:42:26,362 INFO L226 Difference]: Without dead ends: 1837 [2021-12-16 03:42:26,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-12-16 03:42:26,367 INFO L933 BasicCegarLoop]: 2325 mSDtfsCounter, 1017 mSDsluCounter, 11586 mSDsCounter, 0 mSdLazyCounter, 4347 mSolverCounterSat, 359 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 13911 SdHoareTripleChecker+Invalid, 4709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 4347 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2021-12-16 03:42:26,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1216 Valid, 13911 Invalid, 4709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 4347 Invalid, 3 Unknown, 0 Unchecked, 20.4s Time] [2021-12-16 03:42:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2021-12-16 03:42:26,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 966. [2021-12-16 03:42:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 966 states, 706 states have (on average 1.368271954674221) internal successors, (966), 714 states have internal predecessors, (966), 211 states have call successors, (211), 46 states have call predecessors, (211), 48 states have return successors, (220), 212 states have call predecessors, (220), 211 states have call successors, (220) [2021-12-16 03:42:26,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1397 transitions. [2021-12-16 03:42:26,402 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1397 transitions. Word has length 94 [2021-12-16 03:42:26,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:42:26,403 INFO L470 AbstractCegarLoop]: Abstraction has 966 states and 1397 transitions. [2021-12-16 03:42:26,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:42:26,403 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1397 transitions. [2021-12-16 03:42:26,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-16 03:42:26,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:42:26,407 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2021-12-16 03:42:26,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 03:42:26,408 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:42:26,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:42:26,408 INFO L85 PathProgramCache]: Analyzing trace with hash -980358125, now seen corresponding path program 1 times [2021-12-16 03:42:26,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:42:26,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082876361] [2021-12-16 03:42:26,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:42:26,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:42:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:42:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:42:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 03:42:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:42:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 03:42:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 03:42:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:42:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 03:42:26,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 03:42:26,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 03:42:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-16 03:42:26,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:42:26,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082876361] [2021-12-16 03:42:26,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082876361] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:42:26,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:42:26,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-16 03:42:26,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496017049] [2021-12-16 03:42:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:42:26,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-16 03:42:26,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:42:26,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-16 03:42:26,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-12-16 03:42:26,698 INFO L87 Difference]: Start difference. First operand 966 states and 1397 transitions. Second operand has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:42:36,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:42:36,600 INFO L93 Difference]: Finished difference Result 2192 states and 3208 transitions. [2021-12-16 03:42:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 03:42:36,600 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2021-12-16 03:42:36,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:42:36,605 INFO L225 Difference]: With dead ends: 2192 [2021-12-16 03:42:36,605 INFO L226 Difference]: Without dead ends: 1249 [2021-12-16 03:42:36,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-12-16 03:42:36,608 INFO L933 BasicCegarLoop]: 1585 mSDtfsCounter, 559 mSDsluCounter, 8967 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 10552 SdHoareTripleChecker+Invalid, 4500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 4131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2021-12-16 03:42:36,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [632 Valid, 10552 Invalid, 4500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 4131 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2021-12-16 03:42:36,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2021-12-16 03:42:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 972. [2021-12-16 03:42:36,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 711 states have (on average 1.3670886075949367) internal successors, (972), 719 states have internal predecessors, (972), 211 states have call successors, (211), 46 states have call predecessors, (211), 49 states have return successors, (223), 213 states have call predecessors, (223), 211 states have call successors, (223) [2021-12-16 03:42:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1406 transitions. [2021-12-16 03:42:36,632 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1406 transitions. Word has length 94 [2021-12-16 03:42:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:42:36,632 INFO L470 AbstractCegarLoop]: Abstraction has 972 states and 1406 transitions. [2021-12-16 03:42:36,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.75) internal successors, (54), 9 states have internal predecessors, (54), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:42:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1406 transitions. [2021-12-16 03:42:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-16 03:42:36,634 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:42:36,634 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2021-12-16 03:42:36,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 03:42:36,635 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:42:36,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:42:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1694209928, now seen corresponding path program 1 times [2021-12-16 03:42:36,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:42:36,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845241563] [2021-12-16 03:42:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:42:36,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:42:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 03:42:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 03:42:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-16 03:42:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 03:42:36,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-16 03:42:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-16 03:42:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-16 03:42:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-16 03:42:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2021-12-16 03:42:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 03:42:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-16 03:42:36,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:42:36,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845241563] [2021-12-16 03:42:36,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845241563] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:42:36,878 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:42:36,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-16 03:42:36,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062150164] [2021-12-16 03:42:36,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:42:36,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-16 03:42:36,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:42:36,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-16 03:42:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-12-16 03:42:36,879 INFO L87 Difference]: Start difference. First operand 972 states and 1406 transitions. Second operand has 11 states, 9 states have (on average 6.111111111111111) internal successors, (55), 10 states have internal predecessors, (55), 4 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-16 03:42:44,185 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 [] [2021-12-16 03:42:46,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:49,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:50,614 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-16 03:42:53,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []