./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:59:41,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:59:41,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:59:41,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:59:41,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:59:41,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:59:41,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:59:41,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:59:41,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:59:41,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:59:41,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:59:41,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:59:41,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:59:41,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:59:41,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:59:41,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:59:41,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:59:41,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:59:41,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:59:41,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:59:41,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:59:41,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:59:41,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:59:41,993 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:59:41,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:59:41,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:59:41,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:59:42,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:59:42,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:59:42,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:59:42,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:59:42,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:59:42,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:59:42,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:59:42,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:59:42,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:59:42,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:59:42,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:59:42,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:59:42,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:59:42,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:59:42,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:59:42,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:59:42,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:59:42,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:59:42,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:59:42,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:59:42,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:59:42,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:59:42,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:59:42,042 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:59:42,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:59:42,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:59:42,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:59:42,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:59:42,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:59:42,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:59:42,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:59:42,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:59:42,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:59:42,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:59:42,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:59:42,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:59:42,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:59:42,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:59:42,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:59:42,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:59:42,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83231938a54e9ae94bbb1bd48018cfe01091365ca5db88cfd1292dc620f78e56 [2021-12-22 15:59:42,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:59:42,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:59:42,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:59:42,331 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:59:42,332 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:59:42,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-12-22 15:59:42,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c378338f7/397cee6be5b8430d8c459d3f237e98b9/FLAGef5e70e91 [2021-12-22 15:59:43,171 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:59:43,172 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-12-22 15:59:43,226 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c378338f7/397cee6be5b8430d8c459d3f237e98b9/FLAGef5e70e91 [2021-12-22 15:59:43,420 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c378338f7/397cee6be5b8430d8c459d3f237e98b9 [2021-12-22 15:59:43,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:59:43,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:59:43,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:59:43,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:59:43,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:59:43,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:59:43" (1/1) ... [2021-12-22 15:59:43,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36be2798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:43, skipping insertion in model container [2021-12-22 15:59:43,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:59:43" (1/1) ... [2021-12-22 15:59:43,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:59:43,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:59:45,351 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2021-12-22 15:59:45,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:59:45,522 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:59:46,015 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-challenges/linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[419026,419039] [2021-12-22 15:59:46,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:59:46,095 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:59:46,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46 WrapperNode [2021-12-22 15:59:46,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:59:46,130 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:59:46,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:59:46,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:59:46,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:46,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:46,675 INFO L137 Inliner]: procedures = 170, calls = 6771, calls flagged for inlining = 68, calls inlined = 55, statements flattened = 16522 [2021-12-22 15:59:46,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:59:46,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:59:46,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:59:46,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:59:46,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:46,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:46,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:46,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:47,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:47,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:47,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:47,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:59:47,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:59:47,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:59:47,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:59:47,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (1/1) ... [2021-12-22 15:59:47,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:59:47,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:59:47,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:59:47,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:59:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev [2021-12-22 15:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev [2021-12-22 15:59:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_vitclk_ctl [2021-12-22 15:59:47,420 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_vitclk_ctl [2021-12-22 15:59:47,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:59:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:59:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_burst [2021-12-22 15:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_burst [2021-12-22 15:59:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_i2c_gate_ctrl [2021-12-22 15:59:47,421 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_i2c_gate_ctrl [2021-12-22 15:59:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:59:47,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_srate [2021-12-22 15:59:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_srate [2021-12-22 15:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_per [2021-12-22 15:59:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_per [2021-12-22 15:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2021-12-22 15:59:47,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_demod_lock_of_stv090x_internal [2021-12-22 15:59:47,422 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod [2021-12-22 15:59:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod [2021-12-22 15:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_dvbs_track_crl [2021-12-22 15:59:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_dvbs_track_crl [2021-12-22 15:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:59:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:59:47,423 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_viterbi [2021-12-22 15:59:47,423 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_viterbi [2021-12-22 15:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_signal_strength [2021-12-22 15:59:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_signal_strength [2021-12-22 15:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:59:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_send_diseqc_msg [2021-12-22 15:59:47,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_send_diseqc_msg [2021-12-22 15:59:47,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 15:59:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 15:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thacq [2021-12-22 15:59:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thacq [2021-12-22 15:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_car_width [2021-12-22 15:59:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_car_width [2021-12-22 15:59:47,425 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_recv_slave_reply [2021-12-22 15:59:47,425 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_recv_slave_reply [2021-12-22 15:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-12-22 15:59:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-12-22 15:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:59:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-22 15:59:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-22 15:59:47,426 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_init [2021-12-22 15:59:47,426 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_init [2021-12-22 15:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2021-12-22 15:59:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demod_lock_of_stv090x_internal [2021-12-22 15:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-22 15:59:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-22 15:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 15:59:47,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 15:59:47,427 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_dmdlock [2021-12-22 15:59:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_dmdlock [2021-12-22 15:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2021-12-22 15:59:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tuner_lock_of_stv090x_internal [2021-12-22 15:59:47,428 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_sleep [2021-12-22 15:59:47,428 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_sleep [2021-12-22 15:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_reg [2021-12-22 15:59:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_reg [2021-12-22 15:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_signal [2021-12-22 15:59:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_signal [2021-12-22 15:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:59:47,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:59:47,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:59:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure comp2 [2021-12-22 15:59:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure comp2 [2021-12-22 15:59:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure remove_dev [2021-12-22 15:59:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_dev [2021-12-22 15:59:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_search [2021-12-22 15:59:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_search [2021-12-22 15:59:47,430 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_write_reg [2021-12-22 15:59:47,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_write_reg [2021-12-22 15:59:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_frontend_algo [2021-12-22 15:59:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_frontend_algo [2021-12-22 15:59:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:59:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:59:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_status [2021-12-22 15:59:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_status [2021-12-22 15:59:47,431 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_vit_thtracq [2021-12-22 15:59:47,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_vit_thtracq [2021-12-22 15:59:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_chk_tmg [2021-12-22 15:59:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_chk_tmg [2021-12-22 15:59:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_read_cnr [2021-12-22 15:59:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_read_cnr [2021-12-22 15:59:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:59:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 15:59:47,432 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_set_srate [2021-12-22 15:59:47,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_set_srate [2021-12-22 15:59:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_activate_modcod_single [2021-12-22 15:59:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_activate_modcod_single [2021-12-22 15:59:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:59:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-22 15:59:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-22 15:59:47,433 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_viterbi [2021-12-22 15:59:47,433 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_viterbi [2021-12-22 15:59:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:59:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_mclk [2021-12-22 15:59:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_mclk [2021-12-22 15:59:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:59:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:59:47,434 INFO L130 BoogieDeclarations]: Found specification of procedure stv090x_get_lock_tmg [2021-12-22 15:59:47,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stv090x_get_lock_tmg [2021-12-22 15:59:48,499 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:59:48,503 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:59:59,856 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:59:59,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:59:59,885 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:59:59,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:59:59 BoogieIcfgContainer [2021-12-22 15:59:59,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:59:59,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:59:59,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:59:59,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:59:59,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:59:43" (1/3) ... [2021-12-22 15:59:59,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160965a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:59:59, skipping insertion in model container [2021-12-22 15:59:59,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:59:46" (2/3) ... [2021-12-22 15:59:59,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@160965a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:59:59, skipping insertion in model container [2021-12-22 15:59:59,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:59:59" (3/3) ... [2021-12-22 15:59:59,897 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--dvb-frontends--stv090x.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2021-12-22 15:59:59,901 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:59:59,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:59:59,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:59:59,952 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:59:59,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 16:00:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 5322 states, 3979 states have (on average 1.5275194772555918) internal successors, (6078), 3991 states have internal predecessors, (6078), 1293 states have call successors, (1293), 48 states have call predecessors, (1293), 48 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) [2021-12-22 16:00:00,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-22 16:00:00,023 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:00,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:00,024 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:00,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:00,028 INFO L85 PathProgramCache]: Analyzing trace with hash 715822238, now seen corresponding path program 1 times [2021-12-22 16:00:00,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:00,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920971860] [2021-12-22 16:00:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:00,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:00:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:00,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:00:00,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:00:00,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920971860] [2021-12-22 16:00:00,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920971860] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:00:00,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:00:00,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 16:00:00,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007434517] [2021-12-22 16:00:00,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:00:00,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 16:00:00,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:00:00,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 16:00:00,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:00,645 INFO L87 Difference]: Start difference. First operand has 5322 states, 3979 states have (on average 1.5275194772555918) internal successors, (6078), 3991 states have internal predecessors, (6078), 1293 states have call successors, (1293), 48 states have call predecessors, (1293), 48 states have return successors, (1293), 1292 states have call predecessors, (1293), 1293 states have call successors, (1293) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:01,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:00:01,153 INFO L93 Difference]: Finished difference Result 10704 states and 17477 transitions. [2021-12-22 16:00:01,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 16:00:01,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-22 16:00:01,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:00:01,208 INFO L225 Difference]: With dead ends: 10704 [2021-12-22 16:00:01,209 INFO L226 Difference]: Without dead ends: 5381 [2021-12-22 16:00:01,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:01,277 INFO L933 BasicCegarLoop]: 8652 mSDtfsCounter, 8384 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8384 SdHoareTripleChecker+Valid, 9009 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 16:00:01,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8384 Valid, 9009 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 16:00:01,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2021-12-22 16:00:02,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2021-12-22 16:00:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 4031 states have (on average 1.528404862317043) internal successors, (6161), 4039 states have internal predecessors, (6161), 1295 states have call successors, (1295), 53 states have call predecessors, (1295), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2021-12-22 16:00:02,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 8745 transitions. [2021-12-22 16:00:02,181 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 8745 transitions. Word has length 8 [2021-12-22 16:00:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:00:02,181 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 8745 transitions. [2021-12-22 16:00:02,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 8745 transitions. [2021-12-22 16:00:02,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-22 16:00:02,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:02,183 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:02,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 16:00:02,184 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:02,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:02,186 INFO L85 PathProgramCache]: Analyzing trace with hash 713153290, now seen corresponding path program 1 times [2021-12-22 16:00:02,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:02,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22660953] [2021-12-22 16:00:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:02,187 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:00:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:00:02,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:00:02,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22660953] [2021-12-22 16:00:02,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22660953] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:00:02,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:00:02,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 16:00:02,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612403921] [2021-12-22 16:00:02,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:00:02,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 16:00:02,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:00:02,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 16:00:02,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:02,626 INFO L87 Difference]: Start difference. First operand 5379 states and 8745 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:02,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:00:02,928 INFO L93 Difference]: Finished difference Result 5381 states and 8746 transitions. [2021-12-22 16:00:02,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 16:00:02,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-22 16:00:02,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:00:02,981 INFO L225 Difference]: With dead ends: 5381 [2021-12-22 16:00:02,981 INFO L226 Difference]: Without dead ends: 5378 [2021-12-22 16:00:02,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:02,998 INFO L933 BasicCegarLoop]: 8643 mSDtfsCounter, 8638 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8638 SdHoareTripleChecker+Valid, 8643 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 16:00:02,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8638 Valid, 8643 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 16:00:03,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5378 states. [2021-12-22 16:00:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5378 to 5378. [2021-12-22 16:00:03,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 4031 states have (on average 1.528156784916894) internal successors, (6160), 4038 states have internal predecessors, (6160), 1294 states have call successors, (1294), 53 states have call predecessors, (1294), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2021-12-22 16:00:03,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 8743 transitions. [2021-12-22 16:00:03,907 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 8743 transitions. Word has length 9 [2021-12-22 16:00:03,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:00:03,908 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 8743 transitions. [2021-12-22 16:00:03,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:03,909 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 8743 transitions. [2021-12-22 16:00:03,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-22 16:00:03,910 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:03,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:03,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 16:00:03,911 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:03,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:03,912 INFO L85 PathProgramCache]: Analyzing trace with hash 630420769, now seen corresponding path program 1 times [2021-12-22 16:00:03,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:03,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856086027] [2021-12-22 16:00:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:03,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:00:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:00:04,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:00:04,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856086027] [2021-12-22 16:00:04,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856086027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:00:04,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:00:04,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 16:00:04,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992797424] [2021-12-22 16:00:04,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:00:04,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 16:00:04,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:00:04,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 16:00:04,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:04,288 INFO L87 Difference]: Start difference. First operand 5378 states and 8743 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:04,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:00:04,582 INFO L93 Difference]: Finished difference Result 5380 states and 8744 transitions. [2021-12-22 16:00:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 16:00:04,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-22 16:00:04,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:00:04,645 INFO L225 Difference]: With dead ends: 5380 [2021-12-22 16:00:04,646 INFO L226 Difference]: Without dead ends: 5377 [2021-12-22 16:00:04,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:04,660 INFO L933 BasicCegarLoop]: 8641 mSDtfsCounter, 8635 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8635 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 16:00:04,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8635 Valid, 8641 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 16:00:04,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5377 states. [2021-12-22 16:00:05,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5377 to 5377. [2021-12-22 16:00:05,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5377 states, 4031 states have (on average 1.5279087075167452) internal successors, (6159), 4037 states have internal predecessors, (6159), 1293 states have call successors, (1293), 53 states have call predecessors, (1293), 52 states have return successors, (1289), 1288 states have call predecessors, (1289), 1289 states have call successors, (1289) [2021-12-22 16:00:05,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8741 transitions. [2021-12-22 16:00:05,289 INFO L78 Accepts]: Start accepts. Automaton has 5377 states and 8741 transitions. Word has length 10 [2021-12-22 16:00:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:00:05,290 INFO L470 AbstractCegarLoop]: Abstraction has 5377 states and 8741 transitions. [2021-12-22 16:00:05,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:05,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5377 states and 8741 transitions. [2021-12-22 16:00:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-22 16:00:05,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:05,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:05,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 16:00:05,291 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:05,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1934282515, now seen corresponding path program 1 times [2021-12-22 16:00:05,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:05,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714006170] [2021-12-22 16:00:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:05,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:00:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 16:00:05,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:00:05,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714006170] [2021-12-22 16:00:05,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714006170] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:00:05,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:00:05,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-22 16:00:05,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400145377] [2021-12-22 16:00:05,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:00:05,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 16:00:05,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:00:05,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 16:00:05,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:05,539 INFO L87 Difference]: Start difference. First operand 5377 states and 8741 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:06,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:00:06,130 INFO L93 Difference]: Finished difference Result 16109 states and 26329 transitions. [2021-12-22 16:00:06,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 16:00:06,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-22 16:00:06,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:00:06,239 INFO L225 Difference]: With dead ends: 16109 [2021-12-22 16:00:06,239 INFO L226 Difference]: Without dead ends: 10731 [2021-12-22 16:00:06,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 16:00:06,296 INFO L933 BasicCegarLoop]: 10042 mSDtfsCounter, 8663 mSDsluCounter, 8663 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8663 SdHoareTripleChecker+Valid, 18705 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 16:00:06,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8663 Valid, 18705 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 16:00:06,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10731 states. [2021-12-22 16:00:07,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10731 to 10727. [2021-12-22 16:00:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10727 states, 8045 states have (on average 1.5286513362336855) internal successors, (12298), 8055 states have internal predecessors, (12298), 2579 states have call successors, (2579), 104 states have call predecessors, (2579), 102 states have return successors, (2653), 2571 states have call predecessors, (2653), 2573 states have call successors, (2653) [2021-12-22 16:00:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10727 states to 10727 states and 17530 transitions. [2021-12-22 16:00:07,545 INFO L78 Accepts]: Start accepts. Automaton has 10727 states and 17530 transitions. Word has length 11 [2021-12-22 16:00:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:00:07,546 INFO L470 AbstractCegarLoop]: Abstraction has 10727 states and 17530 transitions. [2021-12-22 16:00:07,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-22 16:00:07,546 INFO L276 IsEmpty]: Start isEmpty. Operand 10727 states and 17530 transitions. [2021-12-22 16:00:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-22 16:00:07,553 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:07,553 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:07,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 16:00:07,554 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:07,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:07,554 INFO L85 PathProgramCache]: Analyzing trace with hash -724196731, now seen corresponding path program 1 times [2021-12-22 16:00:07,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:07,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511485569] [2021-12-22 16:00:07,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:07,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:00:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:07,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 16:00:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:07,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-22 16:00:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:07,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 16:00:07,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-22 16:00:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:08,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 16:00:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:08,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 16:00:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:08,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-22 16:00:08,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:00:08,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511485569] [2021-12-22 16:00:08,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511485569] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:00:08,027 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:00:08,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 16:00:08,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054825632] [2021-12-22 16:00:08,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:00:08,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 16:00:08,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:00:08,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 16:00:08,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 16:00:08,028 INFO L87 Difference]: Start difference. First operand 10727 states and 17530 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 16:00:13,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 16:00:18,910 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-22 16:00:19,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 16:00:19,384 INFO L93 Difference]: Finished difference Result 21759 states and 35777 transitions. [2021-12-22 16:00:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 16:00:19,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 69 [2021-12-22 16:00:19,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 16:00:19,464 INFO L225 Difference]: With dead ends: 21759 [2021-12-22 16:00:19,464 INFO L226 Difference]: Without dead ends: 11035 [2021-12-22 16:00:19,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-22 16:00:19,543 INFO L933 BasicCegarLoop]: 8505 mSDtfsCounter, 660 mSDsluCounter, 30485 mSDsCounter, 0 mSdLazyCounter, 2618 mSolverCounterSat, 1369 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 38990 SdHoareTripleChecker+Invalid, 3989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1369 IncrementalHoareTripleChecker+Valid, 2618 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2021-12-22 16:00:19,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [713 Valid, 38990 Invalid, 3989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1369 Valid, 2618 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2021-12-22 16:00:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11035 states. [2021-12-22 16:00:21,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11035 to 10875. [2021-12-22 16:00:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10875 states, 8166 states have (on average 1.5274308106784227) internal successors, (12473), 8179 states have internal predecessors, (12473), 2599 states have call successors, (2599), 106 states have call predecessors, (2599), 109 states have return successors, (2702), 2593 states have call predecessors, (2702), 2593 states have call successors, (2702) [2021-12-22 16:00:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10875 states to 10875 states and 17774 transitions. [2021-12-22 16:00:21,113 INFO L78 Accepts]: Start accepts. Automaton has 10875 states and 17774 transitions. Word has length 69 [2021-12-22 16:00:21,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 16:00:21,113 INFO L470 AbstractCegarLoop]: Abstraction has 10875 states and 17774 transitions. [2021-12-22 16:00:21,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 16:00:21,114 INFO L276 IsEmpty]: Start isEmpty. Operand 10875 states and 17774 transitions. [2021-12-22 16:00:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-12-22 16:00:21,119 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 16:00:21,120 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 16:00:21,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-22 16:00:21,120 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 16:00:21,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 16:00:21,121 INFO L85 PathProgramCache]: Analyzing trace with hash 412085355, now seen corresponding path program 1 times [2021-12-22 16:00:21,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 16:00:21,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812639193] [2021-12-22 16:00:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 16:00:21,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 16:00:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:21,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 16:00:21,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:21,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-22 16:00:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:21,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 16:00:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 16:00:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-22 16:00:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 16:00:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 16:00:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 16:00:22,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-22 16:00:22,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 16:00:22,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812639193] [2021-12-22 16:00:22,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812639193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 16:00:22,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 16:00:22,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-22 16:00:22,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693613716] [2021-12-22 16:00:22,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 16:00:22,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-22 16:00:22,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 16:00:22,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-22 16:00:22,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-12-22 16:00:22,349 INFO L87 Difference]: Start difference. First operand 10875 states and 17774 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 10 states have internal predecessors, (58), 4 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7)