./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.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 a39972fedd2c32e1b0c1a1e36e71e6a7f2f27ff7bdb89adfbd5175cf7e57ae01 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:23:02,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:23:02,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:23:02,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:23:02,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:23:02,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:23:02,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:23:02,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:23:02,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:23:02,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:23:02,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:23:03,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:23:03,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:23:03,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:23:03,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:23:03,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:23:03,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:23:03,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:23:03,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:23:03,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:23:03,021 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:23:03,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:23:03,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:23:03,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:23:03,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:23:03,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:23:03,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:23:03,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:23:03,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:23:03,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:23:03,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:23:03,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:23:03,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:23:03,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:23:03,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:23:03,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:23:03,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:23:03,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:23:03,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:23:03,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:23:03,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:23:03,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:23:03,044 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:23:03,071 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:23:03,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:23:03,072 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:23:03,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:23:03,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:23:03,073 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:23:03,074 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:23:03,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:23:03,074 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:23:03,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:23:03,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:23:03,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:23:03,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:23:03,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:23:03,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:23:03,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:23:03,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:23:03,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:23:03,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:23:03,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:23:03,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:23:03,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:23:03,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:23:03,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:23:03,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:23:03,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:23:03,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:23:03,089 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:23:03,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:23:03,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:23:03,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a39972fedd2c32e1b0c1a1e36e71e6a7f2f27ff7bdb89adfbd5175cf7e57ae01 [2022-07-21 10:23:03,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:23:03,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:23:03,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:23:03,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:23:03,433 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:23:03,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i [2022-07-21 10:23:03,503 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56513718f/07e3fec3fe5842978394f40cf72433ee/FLAGa8366515b [2022-07-21 10:23:04,305 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:23:04,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i [2022-07-21 10:23:04,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56513718f/07e3fec3fe5842978394f40cf72433ee/FLAGa8366515b [2022-07-21 10:23:04,825 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56513718f/07e3fec3fe5842978394f40cf72433ee [2022-07-21 10:23:04,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:23:04,828 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:23:04,829 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:23:04,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:23:04,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:23:04,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:23:04" (1/1) ... [2022-07-21 10:23:04,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fae5086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:04, skipping insertion in model container [2022-07-21 10:23:04,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:23:04" (1/1) ... [2022-07-21 10:23:04,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:23:04,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:23:07,559 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/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i[345486,345499] [2022-07-21 10:23:07,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:07,732 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:23:08,221 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/main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i[345486,345499] [2022-07-21 10:23:08,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:23:08,427 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:23:08,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08 WrapperNode [2022-07-21 10:23:08,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:23:08,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:23:08,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:23:08,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:23:08,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,714 INFO L137 Inliner]: procedures = 461, calls = 4752, calls flagged for inlining = 235, calls inlined = 28, statements flattened = 2825 [2022-07-21 10:23:08,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:23:08,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:23:08,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:23:08,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:23:08,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:23:08,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:23:08,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:23:08,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:23:08,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (1/1) ... [2022-07-21 10:23:08,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:23:08,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:23:08,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 10:23:08,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 10:23:09,002 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 10:23:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:23:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:23:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-07-21 10:23:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-07-21 10:23:09,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-07-21 10:23:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-07-21 10:23:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-07-21 10:23:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-07-21 10:23:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-07-21 10:23:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-07-21 10:23:09,004 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-07-21 10:23:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-07-21 10:23:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-21 10:23:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-21 10:23:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-07-21 10:23:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-07-21 10:23:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:23:09,005 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-07-21 10:23:09,005 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-07-21 10:23:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2022-07-21 10:23:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2022-07-21 10:23:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:23:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 10:23:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 10:23:09,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:23:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-21 10:23:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-21 10:23:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2022-07-21 10:23:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2022-07-21 10:23:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-07-21 10:23:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-07-21 10:23:09,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:23:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 10:23:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 10:23:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-07-21 10:23:09,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-07-21 10:23:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-07-21 10:23:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-07-21 10:23:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:23:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:23:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-07-21 10:23:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-07-21 10:23:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 10:23:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 10:23:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:23:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:23:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-07-21 10:23:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-07-21 10:23:09,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-21 10:23:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-21 10:23:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-07-21 10:23:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-07-21 10:23:09,011 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-21 10:23:09,011 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-21 10:23:09,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:23:09,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:23:09,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 10:23:09,013 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 10:23:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:23:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:23:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-07-21 10:23:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-07-21 10:23:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:23:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:23:09,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-21 10:23:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-21 10:23:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:23:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:23:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:23:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:23:09,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 10:23:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 10:23:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-21 10:23:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-21 10:23:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:23:09,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:23:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-07-21 10:23:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-07-21 10:23:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:23:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-07-21 10:23:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-07-21 10:23:09,017 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-07-21 10:23:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-07-21 10:23:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 10:23:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 10:23:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:23:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:23:09,018 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-07-21 10:23:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-07-21 10:23:09,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-07-21 10:23:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-07-21 10:23:09,627 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:23:09,629 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:24:34,845 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:24:34,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:24:34,864 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 10:24:34,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:24:34 BoogieIcfgContainer [2022-07-21 10:24:34,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:24:34,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:24:34,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:24:34,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:24:34,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:23:04" (1/3) ... [2022-07-21 10:24:34,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3408bd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:24:34, skipping insertion in model container [2022-07-21 10:24:34,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:23:08" (2/3) ... [2022-07-21 10:24:34,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3408bd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:24:34, skipping insertion in model container [2022-07-21 10:24:34,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:24:34" (3/3) ... [2022-07-21 10:24:34,877 INFO L111 eAbstractionObserver]: Analyzing ICFG main3_drivers-media-video-tlg2300-poseidon-ko--32_7a--4a349aa.i [2022-07-21 10:24:34,889 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:24:34,890 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:24:34,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:24:34,975 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1bfac7b1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e8bd5cd [2022-07-21 10:24:34,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:24:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 516 states, 358 states have (on average 1.3519553072625698) internal successors, (484), 369 states have internal predecessors, (484), 119 states have call successors, (119), 37 states have call predecessors, (119), 37 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2022-07-21 10:24:34,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 10:24:34,992 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:24:34,993 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:24:34,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:24:35,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:24:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1124184562, now seen corresponding path program 1 times [2022-07-21 10:24:35,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:24:35,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278213176] [2022-07-21 10:24:35,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:24:35,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:24:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:24:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:24:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:24:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:24:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:24:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:24:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:24:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:24:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:24:36,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:24:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:24:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:24:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:24:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:36,554 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:24:36,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:24:36,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278213176] [2022-07-21 10:24:36,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278213176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:24:36,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:24:36,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:24:36,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224580241] [2022-07-21 10:24:36,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:24:36,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:24:36,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:24:36,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:24:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:24:36,632 INFO L87 Difference]: Start difference. First operand has 516 states, 358 states have (on average 1.3519553072625698) internal successors, (484), 369 states have internal predecessors, (484), 119 states have call successors, (119), 37 states have call predecessors, (119), 37 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 10:24:38,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:40,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:43,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:46,153 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:24:48,781 INFO L93 Difference]: Finished difference Result 1067 states and 1531 transitions. [2022-07-21 10:24:48,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:24:48,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 150 [2022-07-21 10:24:48,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:24:48,798 INFO L225 Difference]: With dead ends: 1067 [2022-07-21 10:24:48,798 INFO L226 Difference]: Without dead ends: 548 [2022-07-21 10:24:48,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:24:48,808 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 329 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 268 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:24:48,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1134 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 474 Invalid, 4 Unknown, 0 Unchecked, 11.8s Time] [2022-07-21 10:24:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-21 10:24:48,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 508. [2022-07-21 10:24:48,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 353 states have (on average 1.3456090651558075) internal successors, (475), 362 states have internal predecessors, (475), 119 states have call successors, (119), 37 states have call predecessors, (119), 35 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 10:24:48,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 705 transitions. [2022-07-21 10:24:48,912 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 705 transitions. Word has length 150 [2022-07-21 10:24:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:24:48,913 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 705 transitions. [2022-07-21 10:24:48,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (16), 4 states have call predecessors, (16), 2 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-21 10:24:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 705 transitions. [2022-07-21 10:24:48,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 10:24:48,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:24:48,918 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:24:48,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:24:48,918 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:24:48,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:24:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash 2104114830, now seen corresponding path program 1 times [2022-07-21 10:24:48,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:24:48,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972076906] [2022-07-21 10:24:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:24:48,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:24:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:24:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:24:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:24:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:24:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:24:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:24:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:24:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:24:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:24:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:24:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:24:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:49,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:24:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:24:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:50,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:24:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:24:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:24:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:24:50,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972076906] [2022-07-21 10:24:50,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972076906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:24:50,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:24:50,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:24:50,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973987089] [2022-07-21 10:24:50,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:24:50,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:24:50,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:24:50,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:24:50,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:24:50,181 INFO L87 Difference]: Start difference. First operand 508 states and 705 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:24:52,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:54,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:56,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:24:59,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:02,079 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:25:05,997 INFO L93 Difference]: Finished difference Result 557 states and 768 transitions. [2022-07-21 10:25:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 10:25:05,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 150 [2022-07-21 10:25:05,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:25:06,001 INFO L225 Difference]: With dead ends: 557 [2022-07-21 10:25:06,001 INFO L226 Difference]: Without dead ends: 553 [2022-07-21 10:25:06,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:25:06,002 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 571 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 294 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 1276 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-07-21 10:25:06,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 1276 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 755 Invalid, 5 Unknown, 0 Unchecked, 15.3s Time] [2022-07-21 10:25:06,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-07-21 10:25:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 510. [2022-07-21 10:25:06,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 356 states have (on average 1.3370786516853932) internal successors, (476), 363 states have internal predecessors, (476), 117 states have call successors, (117), 38 states have call predecessors, (117), 36 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 10:25:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 704 transitions. [2022-07-21 10:25:06,045 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 704 transitions. Word has length 150 [2022-07-21 10:25:06,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:25:06,045 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 704 transitions. [2022-07-21 10:25:06,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:06,046 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 704 transitions. [2022-07-21 10:25:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-21 10:25:06,048 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:25:06,048 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:25:06,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:25:06,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:25:06,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:25:06,049 INFO L85 PathProgramCache]: Analyzing trace with hash 802427563, now seen corresponding path program 1 times [2022-07-21 10:25:06,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:25:06,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65180203] [2022-07-21 10:25:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:25:06,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:25:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:25:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:25:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:25:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:25:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:25:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:25:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:25:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:25:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:25:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:25:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:25:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:25:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:06,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:07,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:25:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:07,137 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:25:07,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:25:07,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65180203] [2022-07-21 10:25:07,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65180203] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:25:07,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:25:07,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:25:07,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151774049] [2022-07-21 10:25:07,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:25:07,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:25:07,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:25:07,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:25:07,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:25:07,139 INFO L87 Difference]: Start difference. First operand 510 states and 704 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:09,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:11,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:13,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:16,876 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:19,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:22,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:25:22,438 INFO L93 Difference]: Finished difference Result 552 states and 762 transitions. [2022-07-21 10:25:22,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:25:22,439 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 151 [2022-07-21 10:25:22,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:25:22,443 INFO L225 Difference]: With dead ends: 552 [2022-07-21 10:25:22,443 INFO L226 Difference]: Without dead ends: 549 [2022-07-21 10:25:22,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:25:22,445 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 798 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 356 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-07-21 10:25:22,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 1090 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 612 Invalid, 5 Unknown, 0 Unchecked, 14.8s Time] [2022-07-21 10:25:22,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-21 10:25:22,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 509. [2022-07-21 10:25:22,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 356 states have (on average 1.3342696629213484) internal successors, (475), 362 states have internal predecessors, (475), 116 states have call successors, (116), 38 states have call predecessors, (116), 36 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 10:25:22,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 702 transitions. [2022-07-21 10:25:22,469 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 702 transitions. Word has length 151 [2022-07-21 10:25:22,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:25:22,469 INFO L495 AbstractCegarLoop]: Abstraction has 509 states and 702 transitions. [2022-07-21 10:25:22,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 702 transitions. [2022-07-21 10:25:22,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-07-21 10:25:22,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:25:22,472 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:25:22,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:25:22,472 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:25:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:25:22,473 INFO L85 PathProgramCache]: Analyzing trace with hash -895167183, now seen corresponding path program 1 times [2022-07-21 10:25:22,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:25:22,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674658022] [2022-07-21 10:25:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:25:22,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:25:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:22,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:25:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:22,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:25:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:22,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:25:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:25:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:25:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:25:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:25:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:25:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:25:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:25:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:25:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:25:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:25:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:23,405 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:25:23,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:25:23,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674658022] [2022-07-21 10:25:23,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674658022] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:25:23,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:25:23,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:25:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920634916] [2022-07-21 10:25:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:25:23,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:25:23,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:25:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:25:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:25:23,407 INFO L87 Difference]: Start difference. First operand 509 states and 702 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:25,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:27,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:29,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:33,054 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:35,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:38,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:25:38,634 INFO L93 Difference]: Finished difference Result 551 states and 760 transitions. [2022-07-21 10:25:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:25:38,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 152 [2022-07-21 10:25:38,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:25:38,640 INFO L225 Difference]: With dead ends: 551 [2022-07-21 10:25:38,640 INFO L226 Difference]: Without dead ends: 548 [2022-07-21 10:25:38,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:25:38,644 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 805 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 359 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 359 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-21 10:25:38,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1077 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [359 Valid, 600 Invalid, 5 Unknown, 0 Unchecked, 14.7s Time] [2022-07-21 10:25:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-07-21 10:25:38,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 508. [2022-07-21 10:25:38,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 356 states have (on average 1.3314606741573034) internal successors, (474), 361 states have internal predecessors, (474), 115 states have call successors, (115), 38 states have call predecessors, (115), 36 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 10:25:38,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 700 transitions. [2022-07-21 10:25:38,674 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 700 transitions. Word has length 152 [2022-07-21 10:25:38,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:25:38,676 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 700 transitions. [2022-07-21 10:25:38,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:38,676 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 700 transitions. [2022-07-21 10:25:38,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-07-21 10:25:38,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:25:38,681 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:25:38,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:25:38,682 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:25:38,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:25:38,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1980991890, now seen corresponding path program 1 times [2022-07-21 10:25:38,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:25:38,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645308897] [2022-07-21 10:25:38,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:25:38,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:25:38,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:25:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:25:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:25:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:25:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:25:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:25:39,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:25:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:25:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:25:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:25:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:25:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:25:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:25:39,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:25:39,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:25:39,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645308897] [2022-07-21 10:25:39,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645308897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:25:39,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:25:39,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:25:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770600500] [2022-07-21 10:25:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:25:39,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:25:39,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:25:39,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:25:39,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:25:39,661 INFO L87 Difference]: Start difference. First operand 508 states and 700 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:41,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:43,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:45,836 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:49,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:51,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:25:54,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:25:54,723 INFO L93 Difference]: Finished difference Result 550 states and 758 transitions. [2022-07-21 10:25:54,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:25:54,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 153 [2022-07-21 10:25:54,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:25:54,729 INFO L225 Difference]: With dead ends: 550 [2022-07-21 10:25:54,729 INFO L226 Difference]: Without dead ends: 547 [2022-07-21 10:25:54,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:25:54,731 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 801 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 350 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:25:54,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1078 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 599 Invalid, 5 Unknown, 0 Unchecked, 14.6s Time] [2022-07-21 10:25:54,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-07-21 10:25:54,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 507. [2022-07-21 10:25:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 356 states have (on average 1.3286516853932584) internal successors, (473), 360 states have internal predecessors, (473), 114 states have call successors, (114), 38 states have call predecessors, (114), 36 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 10:25:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 698 transitions. [2022-07-21 10:25:54,759 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 698 transitions. Word has length 153 [2022-07-21 10:25:54,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:25:54,759 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 698 transitions. [2022-07-21 10:25:54,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:54,760 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 698 transitions. [2022-07-21 10:25:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-21 10:25:54,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:25:54,763 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:25:54,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:25:54,764 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:25:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:25:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1281814572, now seen corresponding path program 1 times [2022-07-21 10:25:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:25:54,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352594414] [2022-07-21 10:25:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:25:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:25:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:25:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:25:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:25:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:25:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:25:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:25:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:25:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:25:55,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:25:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:25:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:25:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:25:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:25:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:25:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:25:55,826 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:25:55,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:25:55,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352594414] [2022-07-21 10:25:55,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352594414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:25:55,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:25:55,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 10:25:55,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966630715] [2022-07-21 10:25:55,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:25:55,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 10:25:55,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:25:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 10:25:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:25:55,828 INFO L87 Difference]: Start difference. First operand 507 states and 698 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:25:57,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:00,006 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:02,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:05,663 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:07,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:26:11,271 INFO L93 Difference]: Finished difference Result 549 states and 756 transitions. [2022-07-21 10:26:11,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 10:26:11,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 154 [2022-07-21 10:26:11,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:26:11,279 INFO L225 Difference]: With dead ends: 549 [2022-07-21 10:26:11,279 INFO L226 Difference]: Without dead ends: 540 [2022-07-21 10:26:11,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 10:26:11,282 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 788 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 344 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:26:11,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1086 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 607 Invalid, 5 Unknown, 0 Unchecked, 14.9s Time] [2022-07-21 10:26:11,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-07-21 10:26:11,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 500. [2022-07-21 10:26:11,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 351 states have (on average 1.3276353276353277) internal successors, (466), 354 states have internal predecessors, (466), 112 states have call successors, (112), 37 states have call predecessors, (112), 36 states have return successors, (111), 111 states have call predecessors, (111), 111 states have call successors, (111) [2022-07-21 10:26:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 689 transitions. [2022-07-21 10:26:11,308 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 689 transitions. Word has length 154 [2022-07-21 10:26:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:26:11,308 INFO L495 AbstractCegarLoop]: Abstraction has 500 states and 689 transitions. [2022-07-21 10:26:11,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-07-21 10:26:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 689 transitions. [2022-07-21 10:26:11,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-21 10:26:11,311 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:26:11,311 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:26:11,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:26:11,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:26:11,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:26:11,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1118355632, now seen corresponding path program 1 times [2022-07-21 10:26:11,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:26:11,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231518101] [2022-07-21 10:26:11,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:26:11,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:26:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:26:11,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:26:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:26:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:26:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:26:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:26:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:11,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:26:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:26:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:26:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:26:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:26:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:26:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:26:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 10:26:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 10:26:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 10:26:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-21 10:26:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:12,348 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:26:12,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:26:12,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231518101] [2022-07-21 10:26:12,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231518101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:26:12,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:26:12,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:26:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340147291] [2022-07-21 10:26:12,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:26:12,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:26:12,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:26:12,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:26:12,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:26:12,351 INFO L87 Difference]: Start difference. First operand 500 states and 689 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 10:26:14,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:16,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:18,553 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:21,127 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:24,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:26,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:26:32,785 INFO L93 Difference]: Finished difference Result 1143 states and 1605 transitions. [2022-07-21 10:26:32,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 10:26:32,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 181 [2022-07-21 10:26:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:26:32,793 INFO L225 Difference]: With dead ends: 1143 [2022-07-21 10:26:32,794 INFO L226 Difference]: Without dead ends: 688 [2022-07-21 10:26:32,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:26:32,798 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 472 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 323 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:26:32,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1700 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1002 Invalid, 6 Unknown, 0 Unchecked, 20.2s Time] [2022-07-21 10:26:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2022-07-21 10:26:32,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 648. [2022-07-21 10:26:32,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 467 states have (on average 1.3468950749464668) internal successors, (629), 470 states have internal predecessors, (629), 144 states have call successors, (144), 37 states have call predecessors, (144), 36 states have return successors, (143), 143 states have call predecessors, (143), 143 states have call successors, (143) [2022-07-21 10:26:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 916 transitions. [2022-07-21 10:26:32,837 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 916 transitions. Word has length 181 [2022-07-21 10:26:32,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:26:32,839 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 916 transitions. [2022-07-21 10:26:32,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-21 10:26:32,840 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 916 transitions. [2022-07-21 10:26:32,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-07-21 10:26:32,844 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:26:32,846 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:26:32,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:26:32,846 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:26:32,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:26:32,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1341331347, now seen corresponding path program 1 times [2022-07-21 10:26:32,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:26:32,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137998312] [2022-07-21 10:26:32,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:26:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:26:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:26:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 10:26:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 10:26:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 10:26:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 10:26:33,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 10:26:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 10:26:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:26:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 10:26:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 10:26:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-21 10:26:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:34,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 10:26:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:26:34,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:26:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 10:26:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-21 10:26:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 10:26:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 10:26:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:26:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 594 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2022-07-21 10:26:34,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:26:34,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137998312] [2022-07-21 10:26:34,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137998312] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:26:34,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:26:34,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 10:26:34,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450575636] [2022-07-21 10:26:34,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:26:34,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 10:26:34,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:26:34,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 10:26:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 10:26:34,769 INFO L87 Difference]: Start difference. First operand 648 states and 916 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 10:26:36,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:38,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:41,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:45,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:47,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:26:51,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:26:51,067 INFO L93 Difference]: Finished difference Result 701 states and 995 transitions. [2022-07-21 10:26:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 10:26:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 192 [2022-07-21 10:26:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:26:51,068 INFO L225 Difference]: With dead ends: 701 [2022-07-21 10:26:51,068 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 10:26:51,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-21 10:26:51,071 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 830 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 631 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-07-21 10:26:51,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 1331 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 644 Invalid, 5 Unknown, 0 Unchecked, 15.4s Time] [2022-07-21 10:26:51,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 10:26:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 10:26:51,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 10:26:51,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 10:26:51,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 192 [2022-07-21 10:26:51,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:26:51,073 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 10:26:51,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 10:26:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 10:26:51,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 10:26:51,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 10:26:51,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 10:26:51,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.